Conair CMA-79 User Manual
CONAIR
WARNING - Reliance on this Manual Could Result in Severe Bodily Injury or Death!
This manual is out-of-date and is provided only for its technical information, data and capacities. Portions of this manual
detailing procedures or precautions in the operation, inspection, maintenance and repair of the product forming the subject
matter of this manual may be inadequate, inaccurate, and/or incomplete and cannot be used, followed, or relied upon.
Contact Conair at info@conairgroup.com or 1-800-654-6661 for more current information, warnings, and materials about
more recent product manuals containing warnings, information, precautions, and procedures that may be more adequate
than those contained in this out-of-date manual.
MARTIN
MANUAL
CMA-79
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CONAIR
MARTIN
Contents
1. Introduction.....................................................................................................3
2. Technical specifications ............................................................................... 4
2.1 Dimensions ......................................................................................................... 4
2.2 Data .................................................................................................................... 4
3. Functional description ............................................................................... 5-6
3.1 Overview............................................................................................................. 5
3.2 Safety system ..................................................................................................... 6
4. Safety regulations ..................................................................................... 7
4.1 Overview............................................................................................................. 7
5. Installation ................................................................................................. 8-9
5.1 Pre-start checks..................................................................................................8
5.2 Opening and closing the hopper and screenbox .............................................8-9
5.3 Electrical connection........................................................................................... 9
6. Operation and daily maintenance..........................................................10-11
6.1 Starting and stopping........................................................................................ 10
6.2 Inspection ......................................................................................................... 10
6.2.1 Daily inspection ................................................................................................... 10
6.2.2 Weekly inspection ............................................................................................... 10
6.3 Cleaning............................................................................................................ 11
6.4 Trouble-shooting............................................................................................... 11
6.4.1 If the granulator does not start ............................................................................ 11
7. Servicing ................................................................................................. 12-17
7.1 Changing the knives .................................................................................... 12-13
7.1.1 Changing the fixed and rotating knives ......................................................... 12-13
7.2 Sharpening the knives ................................................................................. 14-15
7.2.1 Overview ............................................................................................................. 14
7.2.2 Sharpening the fixed and rotating knives ...................................................... 14-15
7.3 Disassembling the screw .................................................................................. 16
7.3.1 Disassembling..................................................................................................... 16
7.3.2 Assembling ......................................................................................................... 16
7.4 Assembling the screw....................................................................................... 16
7.5 Lubrication ........................................................................................................ 17
8. Spare parts list .......................................................................... 18-21
8.1 Overview........................................................................................................... 18
8.1.1a 79,
8.1.1b 79,
8.1.2 79, Knives, fixed and rotating ............................................................................. 21
9. Electrical scheme......................................................................................... 22
10. Layout............................................................................................................ 23
10.1 Dimensions ....................................................................................................... 23
11. Options .................................................................................................... 24-27
11.1 Overview ........................................................................................................... 24
11.1.1 79, Air-veyor 32................................................................................................... 25
11.1.2 Pause/pulse relay when emptying with Air-veyor............................................... 26
11.1.3 Level control, capacitive ..................................................................................... 27
12. Transporting and storing.............................................................................28
12.1 Overview........................................................................................................... 28
12.2 Storing .............................................................................................................. 28
Diagram ........................................................................................................
Table .............................................................................................................
19
20
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1. Introduction
This manual is for CONAIR MARTIN'S 79 granulators, where
A = Screw feed (Auger)
This manual must be studied carefully before installing and using the
equipment, in order to prevent personal injury and damage to the
machinery.
Always take great care when the knives are within reach,
since they are very sharp and can cause personal injury.
CONAIR MARTIN granulators are built for granulation of injection moulded,
blow moulded or extruded plastic waste where the granulator’s size and
performance corresponds to the type of waste. For any other products or
materials, approval must be obtained from the dealer or head-office in order for
the conditions of the guarantee to remain valid.
CONAIR
MARTIN
The different types of granulator are designed so that maintenance and cleaning
can be carried out quickly and simply, both during routine maintenance as well
as when changing colour or material.
All servicing work should be carried out by a person with technical training or
corresponding professional experience. The manual contains instructions for
both handling and servicing the granulator. Chapter 7, which contains servicing
instructions, is intended for service engineers. Other chapters contain
instructions for the daily operator.
Delivered with the granulator are a manual, tool kit and touch-up paint.
Any modifications, changes, or rebuilding of the granulator must be approved
by CONAIR MARTIN in order to avoid personal injury and damage to
machinery and to ensure that the documentation remains correct.
If you have any questions, please contact your local dealer or our head-office.
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MARTIN
2. Technical specifications
2.1 Dimensions
See chapter 10, Layout.
2.2 Data
Serial Number
Motor power ...................................................................................
Capacity ....................................................................................
Voltage ....................................................................................
Screw inlet port ..............................................................................
Fixed knives ....................................................................................
Screen ....................................................................................
Weight ....................................................................................
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3. Functional description
3.1 Overview
The 79 granulator is designed for grinding different types of plastic waste.
The granulator is controlled from an electrical cabinet with a start/stop function
and an emergency stop button.
B
C
A
D
E
The material is fed into the hopper (A) and is pushed towards the rotor. The
rotor’s knives (B) grind the material against the fixed knives (C) in the cutter
housing. Both the fixed and rotating knives can be changed or re-sharpened
when necessary. The sharpening is carried out in a special fixture outside of the
granulator.
Under the rotor is a screen (D) through which the granulate passes before it
comes down into the granule bin. The screen is available with various hole sizes
depending on the required degree of coarseness of the granulate.
The granulated material is then collected in the granule bin (E). On the standard
model, the operator must take out the granule bin to empty it. As an option, the
granulator can be fitted with a suction blower which sucks the granulate out of
the granule bin.
The granule bin, screen and screenbox are designed so that they can be easily
released when cleaning.
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MARTIN
3.2 Safety system
Since there are rotating knives inside the granulator, there is a built-in safety
system to prevent personal injury.
Emergency stop: The equipment is fitted with an emergency stop switch on the
control panel. The emergency stop is activated by pushing the button. It is reset
by turning the button in the direction of the arrow (anti-clockwise).
Safety switches: The safety system includes 2 safety switches. The switches are
located as follows:
• 1 by the hopper
• 1 by the screenbox
The system is designed so that when the screenbox is pulled out a safety switch
is actuated which cuts off the power so that the rotor and screw stop before the
screenbox can be opened.
Similarly, for the hopper, a safety switch is actuated by a loop being pulled out
of the switch and breaking the electric circuit when the locking clamp is
pressed down and the inlet funnel or protective cover is released.
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MARTIN
4. Safety regulations
4.1 Overview
CONAIR MARTIN granulators are built for granulation of injection moulded,
blow moulded or extruded plastic waste, which must not exceed the
granulator's size and performance as described in chapter 2.
The granulator is equipped with safety switches to prevent the front door and
the hopper from being opened during operation. The following safety measures
should always be observed when handling the granulator:
• WARNING! High Voltage! The electrical installation work must only
be carried out by authorised personnel!
• Always switch off the power supply using the main circuit-breaker (on
top of the electrical cabinet) before opening the granulator.
WARNING! High voltage remains on the incoming phase's connection
block and up to the main circuit-breaker!
• Never put any part of your body into any openings on the granulator
unless the main circuit-breaker is in the "OFF" (=0) position.
• Always be careful when the knives are in reach since they are very
sharp. When the rotor has to be rotated manually, this must be done
with the greatest care!
• Be careful when the hopper and screenbox are opened and closed so
that no part of your body gets caught.
• The granulator cannot be started until the screenbox and the hopper
are locked.
= WARNING! High Voltage!
This sign is placed on the electrical cabinet's door and any connection boxes.
= WARNING! Risk of being cut or caught in the machinery!
This sign is placed as necessary next to dangerous parts, for example the
hopper and screenbox.
As long as the instructions in this manual are followed carefully, there should be
no other dangers.
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5. Installation
All instructions must be carried out in the order described, to prevent personal
injury or damage to machinery.
Always take great care when handling the knives since they are very sharp
and can cause personal injury.
The granulator should be connected to the mains supply by an authorised
electrician.
5.1 Pre-start checks
• Before the granulator is installed, the rust preventive should be carefully
cleaned from the parts which are not painted or rustproof.
• Check the knife clearance and tightening torque on the attachment bolts for
the knives.
5.1.1 T wo hours after first start
CONAIR
MARTIN
Check the knife clearance again and tightening torque of the attachment screws
for knives; check the attachment screws for both the fixed and rotating knives.
5.2 Opening and closing the hopper and screenbox
Screenbox:
The screenbox is held in place by a spring-loaded hoisting mechanism, which is
manoeuvred using the bar (4). Release the screenbox by moving the bar until it
is horisontal.
1. Pull out the granule bin (3). A safety
switch on the back of the granulator
is then activated, which breaks the
current to prevent the machine from
being started with the screenbox
open.
2. Loosen the socket-head nut at the
top of the clamping ring (1).
Turn the granulator, by using the
motor as a lever, to the position
shown in the figure opposite.
Simultaneously put your weight
against the motor so that the
granulator does not turn freely
and damage the blower motor.
Contd.
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3. Loosen the two collar nuts (1) which retain the screen holder.
1
2a
2b
4. Lower the link screws (2a, 2b) against the screen and lift out the screen
holder.
5. Lower the link screws against the inside (as for 2b) of the cutter housing and
lift out the screen for cleaning or changing the knives.
Hopper:
1. Release the protective cover or inlet funnel by pushing down the locking
clamp (2) and pulling the funnel axially over the locking clamp. The safety
switch's locking clamp is released, which cuts off the current to the screw
motor and prevents the granulator from being operated with the hopper
open.
5.3 Electrical connection
The granulator should be connected up by an authorised
electrician.
Connect the granulator to the mains supply. See Electrical scheme,
chapter␣ 9, connecting (Q1).
All connected electric motors have been set up with the intended rotation
direction by setting up the internal electrical connection for clockwise rotating
field.
• Using a phase-sequence indicator, check that the incoming phases are
connected to the granulator so that the intended, clockwise rotating field is
maintained.
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