Miller Electric Spectrum 2050 User Manual

Comes Complete With:

ICE-55C hand-held torch with 25 ft
(7.6 m) or 50 ft (15.2 m) cable,
or ICE-55CM machine-held torch
with 50 ft (15.2 m) cable. Extra
consumables supplied
Heavy-duty work clamp with
25 ft (7.6 m) or 50 ft (15.2 m) cable
10 ft (3 m) power cord

Spectrum®2050

Air Plasma

Cutting and Gouging

Issued April 2008 • Index No. PC/7.0

The Power of Blue®.

Miller Electric Mfg. Co.

An Illinois Tool Works Company
1635 West Spencer Street
Appleton, WI 54914 USA

Web Site

www.MillerWelds.com

International Headquarters

Phone: [phone]
USA FAX: [phone]
Canadian FAX: [phone]
International FAX: [phone]

The ICE-55C torch includes a drag
shield that attaches to the cup and
holds the tip 1/8 in (3.2 mm) off the
workpiece. This permits the operator to
drag the torch on the work piece while
cutting at full output, which increases
operator comfort and makes template
cutting easier.

Auto-Line

™

automatically links the

Spectrum

®

2050 to any primary input
voltage from 208 to 575 V, single- or
three-phase, 50 or 60 Hz.

A standard feature, the pilot arc
switch in expanded metal mode
allows operator to cut grates, chain
link fence, and other perforated
metals without retriggering the gun.

Consumables storage compartment

provides convenient access to
consumables and parts.

Can be powered by any Miller
engine drive with generator power

(e.g. Bobcat

™

) or equivalent
competitive equipment. See page 3
for engine drive compatibility and
recommended settings.

Postflow cooling circuit cools
consumables and torch with postflow air
after you release the trigger. This feature
extends life of the torch and
consumables.

Starts without high-frequency so it
will not interfere with or damage
controls or computers.

Built-in gas/air filter/regulator is
housed inside the power source for
protection from transportation
damage. A standard air connection is
also provided on the back panel for
easy gas or air hookup.

Wind Tunnel Technology

™

prevents
abrasive dust and particles from
damaging internal components. Also, the

Fan-On-Demand

™

cooling system only
operates when needed. In dirty or dusty
environments, this feature reduces the
amount of airborne dust/dirt pulled
through the unit.

Portable, easy-to-carry unit weighs
only 86 lb (39 kg).

Power source is warranted for 3 years, parts and labor.

ICE torch is warranted for 1 year, parts and labor.

ICE-55C torch offers improved plasma
flow characteristics for increased
cutting speeds and longer consumable
set life.

Rated Output

55 A at 110 VDC,
60% Duty Cycle, 3-Phase

55 A at 110 VDC,
50% Duty Cycle, 1-Phase

Cutting Capability

Rated: 7/8 in (22.2 mm)
Sever: 1-1/8 in (28.6 mm)

Weight

With torch: 86 lb (39 kg)

Required Input
Pressure/Flow

6 SCFM (170 L/min) at
90 PSI MIN (621 kPa)
120 PSI MAX (828 kPa)

Industrial Applications

Construction

Maintenance/Repair

Fabrication

Processes

Air Plasma Cutting

and Gouging

Quick
Specs

Spectrum Plasma Cutters offer
reliability and performance that
others can’t match! See more at

MillerWelds.com/reliable

2

Rated Output

55 A at 110 VDC,
60% duty cycle,
3-Phase

55 A at 110 VDC,
50% duty cycle,
1-Phase

Amps Input at Rated Output
208 V 230 V 380 V 400 V 415 V 460 V 575 V KVA KW

21 20 10 10 10 9 8 7.6 7.4

(7.9 @ 575 V)

36 33 — — — 16 13 7.5 7.4

Max.
Open-Circuit
Voltage

280 VDC

Plasma
Gas

Air or
Nitrogen
only

Weight
with
Torch

Net:
86 lb
(39 kg)

Ship:

93.5 lb
(42.4 kg)

Specifications (Subject to change without notice.)

Control Panel

Mild Steel Cutting Capability

(Thickness to scale.)

Dimensions

H: 17 in (432 mm)
W: 12-1/2 in (318 mm)
D: 20-3/4 in (527 mm)

Note: For any single- or three-phase voltage from 208 V to 575 V, the Amps Input at Rated Output is the same for 50 or 60 Hertz input power.

Cutting Performance

1

2

4

6

5

3

1.Gas/Air Pressure Adjustment Control

2.Gas/Air Pressure Gauge

3.Torch Connection Receptacle

4.Output Control

5.Pilot Arc Mode Switch

6.Status and Troubleshooting Lights

To determine the maximum rated cutting
thick ness of mild steel, follow the line from
the 10 IPM (inches per minute) point on
the cutting chart. The point at which this
line intersects the cutting curve determines
the maximum recommended production
cutting thickness of the unit.

Note: The rating is based on 10 IPM because this is
the minimum speed at which the operator achieves a
smooth, steady cut when using a hand-held torch.

Note: Recommended maximum piercing capacity for hand-held applications is 7/16 in (11 mm).
Maximum Sever cut of 1-1/8 in (28.6 mm) a 3 IPM
For aluminum and other metals with high thermal conductivity, cutting capabilities will be derated as much as 30%.

7/8 in (22.2 mm) at 10 IPM1/2 in (12.7 mm) at 27 IPM

Maximum Sever cut of

1-1/8 in (28.6 mm) at 3 IPM

Rated cut capacity is based on traveling
approximately 10 inches per minute to achieve
a steady, precise cut. This is the key rating that
should meet or exceed your typical cutting
thickness requirements.

Rated

Rated

Cutting Speed vs. Material Thickness

160
150
140
130
120
110
100
90
80
70
60
50
40
30

Cutting Speed Inches/Minute

20
10
0

0

1/4

(6.4)

3/8

(9.5)

Aluminum

5/8

(15.9)

1/8

(3.2)

Material Thickness Inches (mm)

Mild Steel

(22.2)

7/8

Stainless

1

(25.4)

4.0

3.0

2.0

1.0

0.0

Cutting Speed Meters/Minute