Hypertherm HRT User Manual

Duramax™ Retrofit Torch
HRT, HRTs, and MRT for
powermax1000
®
, powermax1250®, and
®
Operator Manual – 807190
Revision 3
Duramax™ Retrofit Torch
HRT, HRTs, and MRT for
powermax1000
and powermax1650
Operator Manual
(P/N 807190)
Revision 3 – May 2012
®
, powermax1250®,
®
Hypertherm, Inc.
Hanover, NH USA
www.hypertherm.com
email: info@hypertherm.com
© 2012 Hypertherm, Inc.
All Rights Reserved
Hypertherm, Powermax, and Duramax are trademarks of Hypertherm, Inc.
andmayberegisteredintheUnited States and/or other countries.
Hypertherm, Inc.
Etna Road, P.O. Box 5010 Hanover, NH 03755 USA 603-643-3441 Tel (Main Office) 603-643-5352 Fax (All Departments) info@hypertherm.com (Main Office Email)
800-643-9878 Tel (Technical Service)
technical.service@hypertherm.com (Technical Service Email)
800-737-2978 Tel (Customer Service)
customer.service@hypertherm.com (Customer Service Email)
866-643-7711 Tel (Return Materials Authorization) 877-371-2876 Fax (Return Materials Authorization)
return.materials@hypertherm.com (RMA email)
Hypertherm Automation
5 Technology Drive, Suite 300 West Lebanon, NH 03784 USA 603-298-7970 Tel 603-298-7977 Fax
Hypertherm Plasmatechnik GmbH
Technologiepark Hanau Rodenbacher Chaussee 6 D-63457 Hanau-Wolfgang, Deutschland 49 6181 58 2100 Tel 49 6181 58 2134 Fax
49 6181 58 2123 (Technical Service)
Hypertherm (S) Pte Ltd.
82 Genting Lane Media Centre Annexe Block #A01-01 Singapore 349567, Republic of Singapore 65 6841 2489 Tel 65 6841 2490 Fax
65 6841 2489 (Technical Service)
Hypertherm (Shanghai) Trading Co., Ltd.
Unit A, 5th Floor, Careri Building 432 West Huai Hai Road Shanghai, 200052 PR China 86-21 5258 3330/1 Tel 86-21 5258 3332 Fax
Hypertherm Europe B.V.
Vaartveld 9 4704 SE Roosendaal, Nederland 31 165 596907 Tel 31 165 596901 Fax 31 165 596908 Tel (Marketing)
31 165 596900 Tel (Technical Service) 00 800 4973 7843 Tel (Technical Service)
Hypertherm Japan Ltd.
Level 9, Edobori Center Building 2-1-1 Edobori, Nishi-ku Osaka 550-0002 Japan 81 6 6225 1183 Tel 81 6 6225 1184 Fax
Hypertherm Brasil Ltda.
Rua Bras Cubas, 231 – Jardim Maia Guarulhos, SP - Brasil CEP 07115-030 55 11 2409 2636 Tel 55 11 2408 0462 Fax
Hypertherm México, S.A. de C.V.
Avenida Toluca No. 444, Anexo 1, Colonia Olivar de los Padres Delegación Álvaro Obregón México, D.F. C.P. 01780 52 55 5681 8109 Tel 52 55 5683 2127 Fax
Hypertherm Korea Branch
#3904 Centum Leaders Mark B/D, 1514 Woo-dong, Haeundae-gu, Busan Korea, 612-889 82 51 747 0358 Tel 82 51 701 0358 Fax
03/15/12

ELECTROMAGNETIC COMPATIBILITY (EMC)

Introduction
Hypertherm’s CE‑marked equipment is built in compliance with standard EN60974‑10. The equipment should be installed and used in accordance with the information be low to achieve electromagnetic compatibility.
The limits required by EN60974‑10 may not be adequate to completely eliminate interference when the affected equipment is in close proximity or has a high degree of sen sitivity. Insuch cases it may be nec essary to use other mea sures to further reduce interference.
This cutting equipment is designed for use only in an in dus tri al environment.
Installation and use
The user is responsible for installing and using the plasma equipment according to the manufacturer’s instructions. If electromagnetic disturbances are detected then it shall be the responsibility of the user to resolve the situation with the technical assistance of the manufacturer. In some cases this remedial action may be as simple as earthing the cutting circuit, see Earthing of Workpiece. Inother cases it could involve constructing an electromagnetic screen enclosing the power source and the work complete with associated input filters. In all cases electromagnetic disturbances must be reduced to the point where they are no longer troublesome.
Assessment of area
Before installing the equipment the user shall make an assessment of potential electromagnetic problems in the surrounding
area. The following shall be taken into account:
a. Other supply cables, control cables,
signalling and telephone cables; above, below and adjacent to the cutting equipment.
b. Radio and television transmitters and
receivers.
c. Computer and other control equip ment.
d. Safety critical equipment, for example
guarding of industrial equipment.
e. Health of the people around, for example the
use of pacemakers and hearing aids.
f. Equipment used for calibration or
measurement.
g. Immunity of other equipment in the
environment. User shall ensure that other equipment being used in the environment is compatible. This may require additional protection measures.
h. Time of day that cutting or other activities are
to be carried out.
The size of the surround ing area to be considered will depend on the structure of the building and other activities that are taking place. The surrounding area may extend beyond the bound aries of the premises.
Methods of reducing emissions
Mains supply
Cutting equipment must be connected to the mains supply according to the manufacturer’s recommendations. If interference occurs, it may be necessary to take additional precautions
Compliance Information EMC-1
9/10
ElEctromagnEtic compatibility (Emc)
such as filtering of the mains supply. Consideration should be given to shielding the supply cable of permanently installed cutting equipment, in metallic conduit or equivalent. Shielding should be electrically continuous throughout its length. The shielding should be connected to the cutting mains supply so that good electrical contact is maintained between the conduit and the cutting pow er source enclosure.
Maintenance of cutting equipment
The cutting equipment must be routinely maintained according to the manufacturer’s recommendations. All access and service doors and covers should be closed and properly fastened when the cutting equipment is in operation. The cutting equipment should not be modified in any way except as set forth in and in accordance with the manufacturer’s written instructions. For example, the spark gaps of arc striking and stabilizing devices should be adjusted and maintained according to the manufacturer’s recommendations.
Cutting cables
The cutting cables should be kept as short aspossible and should be positioned close together, running at or close to the floor level.
Equipotential bonding
Bonding of all metallic components in the cutting installation and adjacent to it should be considered. However, metallic com po nents bonded to the workpiece will increase the risk that the operator could receive a shock by touching these metallic components and the electrode (nozzle for laser heads) at the same time. The operator should be insulated from all such bonded metallic components.
Earthing of workpiece
Where the workpiece is not bonded to earth for electrical safety, nor connected to earth because of its size and position, for example, ship’s hull or building steelwork, a connection bonding the work piece to earth may reduce emis sions in some, but not all instances. Careshould be taken to prevent the earthing ofthe workpiece increasing the risk of injury to users, or damage to other electrical equipment. Where necessary, the connection of the workpiece to earth should be made by a direct connection to the workpiece, but in some countries where direct connection is not permitted, the bonding should be achieved by suitable capacitances selected according to national regulations.
Note: the cutting circuit may or may not be earthed for safety reasons. Changing the earthing arrangements should only be authorized by a person who is competent to assess whether the changes will increase the risk of injury, for example, by allowing parallel cutting current return paths which may damage the earth cir cuits of other equipment. Further guidance is provided in IEC 60974‑9, Arc Welding Equip ment, Part 9: Installation and Use.
Screening and shielding
Selective screening and shielding of other cables and equipment in the surrounding area may alleviate problems of interference. Screening of the entire plasma cutting installation may be con sid ered for special applications.
EMC-2 Compliance Information
9/10

WARRANTY

Attention
Genuine Hypertherm parts are the factory‑ recommended replacement parts for your Hypertherm system. Any damage or injury caused by the use of other than genuine Hypertherm parts may not be covered by the Hypertherm warranty, and will constitute misuse of the Hypertherm Product.
You are solely responsible for the safe use of the Product. Hypertherm does not and cannot make any guarantee or warranty regarding the safe use of the product in your environment.
General
Hypertherm, Inc. warrants that its Products shall be free from defects in materials and workmanship for the specific periods of time set forth herein and as follows: if Hypertherm is notified of a defect (i) with respect to the power supply within a period of two (2) years from the date of its delivery to you, with the exception of Powermax brand power supplies, which shall be within a period of three (3) years from the date of delivery to you, and (ii) with respect to the torch and leads within a period of one (1) year from its date of delivery to you, and with respect to torch lifter assemblies within a period of one (1) year from its date of delivery to you, and with respect to laser heads within a period of one (1) year from its date of delivery to you, and with respect to Automation products one (1) year from its date of delivery to you, with the exception of the EDGE Pro CNC and ArcGlide THC, which shall be within a period of two (2) years from the date of delivery to you.
This warranty shall not apply to any Powermax brand power supplies that have been used with phase converters. In addition, Hypertherm does not warranty systems that have been damaged as a result of poor power quality, whether from phase converters or incoming line power. This warranty shall not apply to any Product which has been incorrectly installed, modified, or otherwise damaged.
Hypertherm provides repair, replacement or adjustment of the Product as the sole and exclusive remedy, if and only if the warranty set forth herein properly is invoked and applies. Hypertherm, at its sole option, shall repair, replace, or adjust, free of charge, any defective Products covered by this warranty which shall be returned with Hypertherm’s prior authorization (which shall not be unreasonably withheld), properly packed, to Hypertherm’s place of business in Hanover, New Hampshire, or to an authorized Hypertherm repair facility, all costs, insurance and freight pre paid by the customer. Hypertherm shall not be liable for any repairs, replacement, or adjustments of Products covered by this warranty, except those made pursuant to this paragraph and with Hypertherm’s prior written consent.
The warranty set forth above is exclusive and is in lieu of all other warranties, express, implied, statutory, or otherwise with respect to the Products or as to the results which may be obtained therefrom, and all implied warranties or conditions of quality or of merchantability or fitness for a particular purpose or against infringement. The foregoing shall constitute the sole and exclusive remedy for any breach by Hypertherm of its warranty.
Compliance Information W-1
9/10
Warranty
WARRANTY
Distributors/OEMs may offer different or additional warranties, but Distributors/OEMs are not authorized to give any additional warranty protection to you or make any representation to you purporting to be binding upon Hypertherm.
Patent indemnity
Except only in cases of products not manufactured by Hypertherm or manufactured by a person other than Hypertherm not in strict conformity with Hypertherm’s specifications and in cases of designs, processes, formulae, or combinations not developed or purported to be developed by Hypertherm, Hypertherm will have the right to defend or settle, at its own expense, any suit or proceeding brought against you alleging that the use of the Hypertherm product, alone and not in combination with any other product not supplied by Hypertherm, infringes any patent of any third party. You shall notify Hypertherm promptly upon learning of any action or threatened action in connection with any such alleged infringement (and in any event no longer than fourteen (14) days after learning of any action or threat of action), and Hypertherm’s obligation to defend shall be conditioned upon Hypertherm’s sole control of, and the indemnified party’s cooperation and assistance in, the defense of the claim.
Limitation of liability
In no event shall Hypertherm be liable to any person or entity for any incidental, consequential direct, indirect, punitive or exemplary damages (including but not limited to lost profits) regardless of whether such liability is based on breach of contract, tort, strict liability, breach of warranty, failure of essential purpose, or otherwise, and even if advised of the possibility of such damages.
National and local codes
National and local codes governing plumbing and electrical installation shall take precedence over any instructions contained in this manual. In no event shall Hypertherm be liable for injury to persons or property damage by reason of any code violation or poor work practices.
Liability cap
In no event shall Hypertherm’s liability, if any, whether such liability is based on breach of contract, tort, strict liability, breach of warranties, failure of essential purpose or otherwise, for any claim, action, suit or proceeding (whether in court, arbitration, regulatory proceeding or otherwise) arising out of or relating to the use of the Products exceed in the aggregate the amount paid for the Products that gave rise to such claim.
Insurance
At all times you will have and maintain insurance in such quantities and types, and with coverage sufficient and appropriate to defend and to hold Hypertherm harmless in the event of any cause of action arising from the use of the products.
W-2 Compliance Information
9/10
Transfer of rights
You may transfer any remaining rights you may have hereunder only in connection with the sale of all or substantially all of your assets or capital stock to a successor in interest who agrees to be bound by all of the terms and conditions of this Warranty. Within thirty (30) days before any such transfer occurs, you agree to notify in writing Hypertherm, which reserves the right of approval. Should you fail timely to notify Hypertherm and seek its approval as set forth herein, the Warranty set forth herein shall be null and void and you will have no further recourse against Hypertherm under the Warranty or otherwise.
Warranty
Compliance Information W-3
9/10
Warranty
W-4 Compliance Information
9/10

Safety information

Before operating any Hypertherm equipment, read the separate Safety and Compliance Manual (80669C) included with your product for important safety information.
Table of ConTenTs
ELECTROMAGNETIC COMPATIBILITY (EMC) ....................................................................EMC-1
WARRANTY ........................................................................................................................................W-1
Safety information ................................................................................................................................. 1
Section 1
Specifications ......................................................................................................................................1-1
Component weights .......................................................................................................................................... 1‑2
Duramax HRT hand torch dimensions .......................................................................................................... 1‑2
Duramax HRTs hand torch dimensions ........................................................................................................ 1‑2
Duramax MRT full‑length machine torch dimensions ................................................................................ 1‑3
Duramax MRT without positioning sleeve (mini torch) .............................................................................. 1‑3
Section 2
Torch Setup ..........................................................................................................................................2-1
Introduction ......................................................................................................................................................... 2‑2
Consumable life .................................................................................................................................................. 2‑2
Hand torch setup ............................................................................................................................................... 2‑3
Choose the hand torch consumables ................................................................................................ 2‑3
Hand torch consumables ...................................................................................................................... 2‑4
Install the hand torch consumables ..................................................................................................... 2‑5
Machine torch setup.......................................................................................................................................... 2‑6
Converting a Duramax retrofit machine torch into a mini torch .................................................... 2‑7
Mount the torch ........................................................................................................................................ 2‑9
Choose the machine torch consumables ........................................................................................2‑12
Machine torch consumables ...............................................................................................................2‑12
Install the machine torch consumables ............................................................................................2‑15
Aligning the torch ..................................................................................................................................2‑15
Torch installation ..............................................................................................................................................2‑16
Section 3
Operation ..............................................................................................................................................3-1
Using the cut charts .......................................................................................................................................... 3‑2
Estimated kerf‑width compensation .................................................................................................... 3‑2
100 amp mechanized shielded cutting for Powermax1650.......................................................... 3‑5
85 amp mechanized shielded cutting for Powermax1650 ............................................................ 3‑7
80 amp mechanized shielded cutting for Powermax1250/1650 ..............................................3‑11
Duramax Retrofit Torch Operator Manual i
Table of ConTenTs
65 amp mechanized shielded cutting for Powermax1250/1650 ..............................................3‑13
60 amp mechanized shielded cutting for Powermax1000/1250/1650 ...................................3‑17
45 amp mechanized shielded cutting for Powermax1000/1250/1650 ...................................3‑19
100 amp mechanized unshielded cutting for Powermax1650 ...................................................3‑23
85 amp mechanized unshielded cutting for Powermax1650......................................................3‑25
65 amp mechanized unshielded cutting for Powermax1250/1650 ..........................................3‑29
45 amp mechanized unshielded cutting for Powermax1000/1250/1650 ..............................3‑33
FineCut® consumables for Powermax1000/1250/1650.............................................................3‑37
Using the hand torch .......................................................................................................................................3‑42
Operate the safety trigger ...................................................................................................................3‑42
Hand torch cutting hints ......................................................................................................................3‑43
Start a cut from the edge of the workpiece.....................................................................................3‑44
Pierce a workpiece ................................................................................................................................3‑45
Gouge a workpiece ..............................................................................................................................3‑46
Common hand‑cutting faults ..............................................................................................................3‑49
Using the machine torch ................................................................................................................................3‑50
Ensure the torch and table are set up correctly .............................................................................3‑50
Understand and optimize cut quality .................................................................................................3‑50
To pierce a workpiece using the machine torch ............................................................................3‑53
Common machine‑cutting faults ........................................................................................................3‑53
Section 4
Maintenance and parts .....................................................................................................................4-1
Perform routine maintenance .......................................................................................................................... 4‑2
Inspect the consumables ................................................................................................................................. 4‑3
Hand torch replacement parts ........................................................................................................................ 4‑4
Machine torch replacement parts .................................................................................................................. 4‑6
Accessory parts.................................................................................................................................................. 4‑7
ii Duramax Retrofit Torch Operator Manual
Section 1
Specifications
In this section:
Component weights .......................................................................................................................................... 1‑2
Duramax HRT hand torch dimensions .......................................................................................................... 1‑2
Duramax HRTs hand torch dimensions ........................................................................................................ 1‑2
Duramax MRT full‑length machine torch dimensions ................................................................................ 1‑3
Duramax MRT without positioning sleeve (mini torch) .............................................................................. 1‑3
Duramax Retrofit Torch Operator Manual 1-1
SpecificationS

Component weights

Torch type Weight – lbs (kg)
Hand torch 25 ft (7.6 m) 7.1 (3.2) Hand torch 50 ft (15 m) 12.5 (5.7) Machine torch 25 ft (7.6 m) 7.6 (3.4) Machine torch 50 ft (15 m) 13.2 (6.0)

Duramax HRT hand torch dimensions

9.9 in (25.2 cm)
75°
3.8 in
(9.8 cm)
angle
1.0 in
(2.5 cm)

Duramax HRTs hand torch dimensions

10.2 in (25.9 cm)
15°
1.9 in
(4.7 cm)
angle
1.0 in
(2.5 cm)
2.6 in
(6.6 cm)
2.6 in
(6.6 cm)
1-2 Duramax Retrofit Torch Operator Manual
SpecificationS

Duramax MRT full-length machine torch dimensions

15.6 in
(39.6 cm)
1.0 in
(2.5 cm)
8.1 in
(20.6 cm)
12.3 in
(31.3 cm)
1.4 in
(3.5 cm)
1.4 in (3.6 cm) outer dimension, 1.3 in
(3.3cm) flat sides

Duramax MRT without positioning sleeve (mini torch)

6.6 in
(16.8 cm)
1.0 in
(2.5 cm)
Duramax Retrofit Torch Operator Manual 1-3
1.4 in
(3.5 cm)
3.3 in
(8.4 cm)
1.4 in (3.6 cm) outer dimension, 1.3 in
(3.3cm) flat sides
SpecificationS
1-4 Duramax Retrofit Torch Operator Manual
Section 2
Torch Setup
In this section:
Introduction ......................................................................................................................................................... 2‑2
Consumable life .................................................................................................................................................. 2‑2
Hand torch setup ............................................................................................................................................... 2‑3
Choose the hand torch consumables ................................................................................................ 2‑3
Hand torch consumables ...................................................................................................................... 2‑4
Install the hand torch consumables ..................................................................................................... 2‑5
Machine torch setup.......................................................................................................................................... 2‑6
Converting a Duramax retrofit machine torch into a mini torch .................................................... 2‑7
Mount the torch ........................................................................................................................................ 2‑9
Choose the machine torch consumables ........................................................................................2‑12
Machine torch consumables ...............................................................................................................2‑12
Install the machine torch consumables ............................................................................................2‑15
Aligning the torch ..................................................................................................................................2‑15
Torch installation ..............................................................................................................................................2‑16
Duramax Retrofit Torch Operator Manual 2-1
Torch seTup

Introduction

Duramax™ series handheld and machine retrofit torches are available for the Powermax1000, Powermax1250, and Powermax1650 systems. The ETR (Easy Torch Removal)™ quick‑disconnect system makes it easy to remove the torch for transport or to switch from one torch to the other if your applications require the use of different torches. The torches are cooled by ambient air and do not require special cooling procedures.
This section explains how to setup your torch and choose the appropriate consumables for the job.

Consumable life

How often you need to change the consumables on your retrofit torch will depend on a number of factors:
• Thickness of the material – the thicker the material being cut, the more often consumables need to be changed.
• Average length of cut – the longer the average cut, the more often consumables need to be changed.
• Type of cutting – handheld cutting will require more consumable changes than machine cutting.
• Air quality – the presence of oil, moisture, or other contaminants will reduce consumable life.
• Piercing / edge starting – piercing the metal causes more consumable wear then starting cuts from the edge of the metal.
• Proper torch‑to‑work distance – when gouging or cutting with unshielded consumables, maintaining proper torch‑to‑work distance will result in better consumable life.
• Proper pierce height – maintaining proper pierce height will result in better consumable life.
• Cutting in “continuous pilot arc” mode or normal cutting mode – cutting with a continuous pilot arc causes more consumable wear than cutting in normal cutting mode.
You will find more information about proper cutting techniques in Section 3, Operation.
2-2 Duramax Retrofit Torch Operator Manual

Hand torch setup

Duramax HRT
TORCH SETUP
Consumables
Duramax HRTs
Consumables
Safety trigger
Safety trigger

Choose the hand torch consumables

Duramax retrofit torches are shipped with a full set of cutting consumables pre‑installed. Hypertherm also includes spare cutting electrodes, nozzles, and gouging consumables in the consumables box, for handheld torches.
Consumables for handheld cutting are shown on the next page. Notice that the retaining cap and electrode are the same for cutting, gouging, and FineCut® applications. Only the shield, nozzle, and swirl ring are different.
For the best cut quality on thin materials, you may prefer to use FineCut consumables, or use a 45A nozzle and reduce the current setting to 45 amps.
Duramax Retrofit Torch Operator Manual 2-3
Torch seTup

Hand torch consumables

Drag-cutting consumables: Powermax1000/1250/1650
4 5 A
220941
Nozzle
6 5 A
220818
Shield
220854
Retaining cap
220992
Shield
Gouging consumables: Powermax1000/1250/1650
220819
Nozzle
8 5 A
220816
Nozzle
1
0
0
A
220990
Nozzle
220842
Electrode
220857
Swirl ring
220994
Swirl ring
6
8
5
5
A
A
220798
Shield
FineCut
220931
Shield
220797
Nozzle
220854
Retaining cap
1
0
0
A
220991
220842
Electrode
Nozzle
®
consumables: Powermax1000/1250/1650
220854
Retaining cap
220930
Nozzle
220842
Electrode
220857
Swirl ring
220994
Swirl ring
220947
Swirl ring
Powermax1000 – Use 45‑65 A consumables Powermax1250 – Use 45‑85 A consumables Powermax1650 – Use 45‑100 A consumables
2-4 Duramax Retrofit Torch Operator Manual
TORCH SETUP

Install the hand torch consumables

WARNING
INSTANTON TORCHES
PLASMA ARC CAN CAUSE INJURY AND BURNS
The plasma arc comes on im me di ate ly when the torch trigger is activated. Make sure the power is OFF before changing consumables.
To operate the hand torch, a complete set of consumable parts must be installed: shield, retaining cap, nozzle, electrode, and swirl ring.
With the power switch in the OFF (O) position, install the torch consumables asshown below.
Swirl ring
Electrode
Nozzle
Retaining cap
Shield
Duramax Retrofit Torch Operator Manual 2-5
Torch seTup

Machine torch setup

Duramax MRT
Mounting
Consumables
sleeve
Coupler
Positioning sleeve
Strain relief nut
Torch lead
Gear rack Strain relief body
Main strain
relief nut
Duramax MRT without positioning sleeve (mini torch)
Mounting
Consumables
sleeve
Coupler
Strain relief nut
Torch lead
Strain relief body
Before using either style of machine torch, you must:
• Mount the torch on your cutting table or other equipment.
• Choose and install the consumables.
• Align the torch.
• Attach the torch lead to the power supply.
• Set up the power supply for remote starting with either the remote‑start pendant or a
machine interface cable.
2-6 Duramax Retrofit Torch Operator Manual
TORCH SETUP

Converting a Duramax retrofit machine torch into a mini torch

You can convert a full‑length machine torch to a mini‑machine torch by removing the positioning sleeve.
Note: If you are converting a full‑length machine torch to a mini‑machine torch and
mounting the torch at the same time, skip this section and follow the instructions in “Mount the torch” on page 2‑9.
Refer to the figures in the section “Machine torch setup” on page 2‑6 and follow these instructions.
Note: While disconnecting and reconnecting the torch parts, maintain the same orientation
between the torch head and torch lead. Twisting the torch head in relation to the torch lead can cause damage.
1. Disconnect the torch lead from the power supply and remove the consumables from the torch.
2. Unscrew the strain relief body from the strain relief nut and slide the strain relief body back along the torch lead.
3. Unscrew the strain relief nut from the positioning sleeve and slide the nut back along the torch lead.
4. Unscrew the positioning sleeve from the coupler.
5. Unscrew the coupler from the mounting sleeve.
6. Remove the three screws from the consumables end of the mounting sleeve and slide the mounting sleeve off the front of the torch body.
Duramax Retrofit Torch Operator Manual 2-7
Torch seTup
Pilot wire
terminal screw
Torch head
Gas supply line
connection
Wire connector for
cap‑sensor switch
7. Disconnect the wire connector for the cap‑sensor switch.
8. Use a #2 Phillips screwdriver to remove the screw that secures the torch’s pilot wire to the torch body.
9. Use 1/4‑inch and 3/8‑inch wrenches, or adjustable wrenches, to loosen the nut that secures the gas supply line to the torch lead. Set the torch body aside.
10. Slide the coupler and positioning sleeve off the front of the torch lead.
11. Slide the coupler over the torch lead.
12. Reconnect the gas line to the torch lead.
13. Reattach the torch’s pilot wire to the torch body using the screw.
14. Reconnect the cap‑sensor switch’s wire connector.
15. Slide the mounting sleeve over the front of the torch body. Align the slot on the front of the mounting sleeve (next to one of the three screw holes) with the cap‑sensor plunger on the torch body.
16. Attach the mounting sleeve to the torch body using the three screws.
17. Screw the coupler into the mounting sleeve.
18. Screw the strain relief nut into the coupler.
19. Screw the strain relief body into the strain relief nut.
2-8 Duramax Retrofit Torch Operator Manual
TORCH SETUP

Mount the torch

Depending on the type of cutting table you have, you may or may not need to disassemble the torch to route it through the track and mount it. If your cutting table’s track is large enough for you to thread the torch through it without removing the torch body from the lead, do so and then attach the torch to the lifter per the manufacturer’s instructions.
Note: The Duramax machine torches can be mounted on a wide variety of X‑Y tables, track
burners, pipe bevelers, and other equipment. Install the torch per the manufacturer’s instructions and follow the instructions below for disassembly if necessary.
If you need to disassemble and reassemble the torch, refer to the figures in the section “Machine torch setup” on page 2‑6 and follow these instructions.
Note: While disconnecting and reconnecting the torch parts, maintain the same orientation
between the torch head and torch lead. Twisting the torch head in relation to the torch lead can cause damage.
1. Disconnect the torch lead from the power supply and remove the consumables from the torch.
2. Unscrew the strain relief body from the strain relief nut and slide the strain relief body back along the torch lead.
3. Unscrew the strain relief nut from the positioning sleeve (full‑length machine torch) and slide the nut back along the torch lead.
4. Unscrew the positioning sleeve from the coupler.
5. Unscrew the coupler from the mounting sleeve.
6. Remove the three screws from the consumables end of the mounting sleeve and slide the mounting sleeve off the front of the torch body.
Duramax Retrofit Torch Operator Manual 2-9
Torch seTup
Pilot wire terminal screw
Wire connector for
Torch head
7. Disconnect the wire connector for the cap‑sensor switch.
8. Use a #2 Phillips screwdriver to remove the screw that secures the torch’s pilot wire to the torch body.
9. Use 1/4‑inch and 3/8‑inch wrenches, or adjustable wrenches, to loosen the nut that secures the gas supply line to the torch lead. Set the torch body aside.
Gas supply line
connection
cap‑sensor switch
Note: Cover the end of the gas line on the torch lead with tape to keep dirt and other
contaminants from getting in the gas line when you route the lead through the track.
10. Slide the coupler, positioning sleeve (full‑length machine torch), strain relief nut, and strain relief body off the front of the torch lead.
11. If you do not need the gear rack on a full‑length machine torch, slide the gear rack from the positioning sleeve toward the consumables end of the sleeve.
12. Route the torch lead through the cutting table’s track.
2-10 Duramax Retrofit Torch Operator Manual
TORCH SETUP
13. Slide the strain relief body and strain relief nut over the torch lead.
14. If you are mounting a full‑length machine torch, slide the positioning sleeve over the torch head.
15. Slide the coupler over the torch lead.
16. Reconnect the gas line to the torch lead.
17. Reattach the torch’s pilot wire to the torch body using the screw.
18. Reconnect the cap‑sensor switch’s wire connector.
19. Slide the mounting sleeve over the front of the torch body. Align the slot on the front of the mounting sleeve (next to one of the three screw holes) with the cap‑sensor plunger on the torch body.
20. Attach the mounting sleeve to the torch body using the three screws.
21. Screw the coupler into the mounting sleeve.
22. If you are mounting a full‑length machine torch, screw the positioning sleeve into the coupler.
23. Reconnect the strain relief nut and strain relief body.
24. Attach the torch to the lifter per the manufacturer’s instructions.
Duramax Retrofit Torch Operator Manual 2-11
Torch seTup

Choose the machine torch consumables

Powermax systems with the Duramax MRT retrofit torch are shipped with a complete set of consumables. Hypertherm also includes spare electrodes and nozzles. In addition, an ohmic‑sensing retaining cap is available for use with shielded consumables. With shielded consumables, the torch tip may touch the metal when cutting. With unshielded consumables, you must keep the torch a small distance, about .08 inch (2 mm), away from the metal. Unshielded consumables generally have a shorter life than shielded consumables.

Machine torch consumables

Mechanized shielded consumables: Powermax1000/1250/1650
4 5 A
220941
Nozzle
6 5 A
220817
Shield
220993
Shield
220854
Retaining cap
220819
Nozzle
8 5 A
220816
Nozzle
1
0
0
A
220842
Electrode
220857
Swirl ring
220994
Swirl ring
220990
Nozzle
Powermax1000 – Use 45‑65 A consumables Powermax1250 – Use 45‑85 A consumables Powermax1650 – Use 45‑100 A consumables
2-12 Duramax Retrofit Torch Operator Manual
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