Shini SG-L User manual

SG-L
Screenless Granulators
Date: Dec. 2021
Version Ver. A (English)

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Contents
1. General Description .....................................................................................6
1.1 Coding Principle......................................................................................7
1.2 Feature ...................................................................................................7
1.3 Safety Regulations..................................................................................9
1.3.1 Safety Regulations .......................................................................9
1.3.2 Transportation and Storage of the Machine ...............................11
1.4 Exemption Clause.................................................................................12
2. Structural Features and Working Principle..............................................13
2.1 General Description..............................................................................13
2.1.1 Working Principle........................................................................13
2.2 Safety System.......................................................................................14
2.2.1 Emergency Stop Switch .............................................................14
2.2.2 Safety Switch..............................................................................14
2.2.3 Door lock....................................................................................15
2.3 Options .................................................................................................15
2.3.1 Manual collection bin..................................................................15
2.3.2 Regrind Conveying via Blower & Cyclone (PC type)..................15
2.3.3 Cutter..........................................................................................16
2.3.4 30-Sec. Instant Recycling System VR Type.............................16
2.3.5 30-sec. Instant Recycling System PR Type..............................17
3. Installation and Debugging .......................................................................18
3.1 Power Connectors ................................................................................19
3.2 Machine Location..................................................................................19
4. Operation Guide......................................................................................... 21
4.1 Clean the Anti-rust Oil...........................................................................21
4.2 Open the Feed Box and Storage Box...................................................21
4.2.1 Open the Feed Box....................................................................21
4.2.2 Open the Storage Box................................................................21
4.3 Shut the Feed Box and Storage Box.....................................................22
4.3.1 Shut the Feed Box......................................................................22
4.3.2 Shut the Storage Box .................................................................22

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4.4 Start and Stop the Granulator...............................................................22
4.4.1 Before the First Startup ..............................................................23
4.4.2 Check the motor’s running direction...........................................23
4.4.3 After Startup for 2 Hour ..............................................................23
4.4.4 After First Startup for 20~30 Hours.............................................24
5. Trouble-shooting........................................................................................25
5.1 Granulator Can Not Work .....................................................................25
5.2 Stop Due to Other Reasons..................................................................25
6. Maintenance and Repair............................................................................ 26
6.1 Installation of Bearing and Blade Rest..................................................26
6.2 Installation of Motor...............................................................................27
6.3 Installation of Feed Box and Storage Box.............................................29
6.4 Repair...................................................................................................30
6.4.1 Replace the Blades....................................................................30
6.5 Maintenance.........................................................................................33
6.5.1 Daily maintenance of the gear motor..........................................33
6.5.2 Daily Check................................................................................33
6.5.3 Weekly Check ............................................................................34
6.5.4 Monthly Check............................................................................34
6.6 Cleaning................................................................................................34
6.7 Maintenance Schedule .........................................................................35
6.7.1 About the Machine......................................................................35
6.7.2 Check after Installation...............................................................35
6.7.3 Daily Check................................................................................35
6.7.4 Weekly Check ............................................................................35
6.7.5 Monthly Check............................................................................35
6.7.6 Check Half-yearly of Every 1000 Running Hours .......................35
6.7.7 3 Year Checking.........................................................................36

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Table Index
Table 6-1 Blade and Other Fixing Screws’Torque Table ...............................26
Picture Index
Picture 1-1 Screenless Granulator SG-L36.......................................................6
Picture 2-1 Working Principle..........................................................................13
Picture 2-2 Emergency Stop Switch................................................................14
Picture 2-3 Safety Switch..............................................................................15
Picture 2-4 Manual Collection Bin...................................................................15
Picture 2-5 Regrind Conveying via Blower & Cyclone (PC type) ....................16
Picture 2-6 Cutter Dimension..........................................................................16
Picture 2-7 Installation of 30-Sec. Instant Recycling System VR Type........17
Picture 3-1 Installation Space.........................................................................19
Picture 3-2 Installation Diagram....................................................................20
Picture 4-1 Open the Feed Box ......................................................................21
Picture 4-2 Open the Storage Box..................................................................22
Picture 4-3 Motor Circuit Breaker....................................................................23
Picture 6-1 Maintenance and Repair Diagram................................................26
Picture 6-2 Installation of Bearing and Blade Rest 1.......................................26
Picture 6-3 Installation of Bearing and Blade Rest 3.......................................27
Picture 6-4 Installation of Gear Motor 1 ..........................................................28
Picture 6-5 Installation of Gear Motor 2 ..........................................................28
Picture 6-6 Installation of Gear Motor 3 ..........................................................28
Picture 6-7 Installation of Feed Box, Feed Port and Storage Box 1................29
Picture 6-8 Installation of Feed Box, Feed Port and Storage Box 2................29
Picture 6-9 Replace the Blades ......................................................................30
Picture 6-10 Dismantle Fixed Blades..............................................................31
Picture 6-11 Dismantle Rotating Blades .........................................................31
Picture 6-12 Installation of Fixed Blades and Rotating Blades 1.....................32
Picture 6-13 Installation of Fixed Blades and Rotating Blades 2.....................32
Picture 6-14 Installation of Fixed Blades and Rotating Blades 3.....................33

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1. General Description
Please read this manual carefully before using this machine in order to
operate correctly against any damage caused due to improper operation.
Note!
Always take great care when the knives are within reach, they are very sharp and
can cause personal injury.
Forbidden to process flammable or toxic material !
SG-L Screenless Granulator is applicable to granulating hard long or strong
flexible sprues for instant recycling and a few rejects. It features small size, low
speed and wear, and super silence, with low speed structure, and particle
granules of little dust. Use quick and easy cleaning methods to clean residues
from the cutting chamber in just a few simple steps. Simple control mode and
operability is user-friendly that makes it easy to operate. Besides, multiple options
are available to meet different production processes and specific method.
Picture 1-1 Screenless Granulator SG-L36

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1.1 Coding Principle
Low speed
Length of Cutting Chamber (CM)
Shini Granulator
Options
1.2 Feature
Adopt TECO brand gear motor that features stable performance, long
service life and large torque.
Break large spurs into smaller pieces, and teeth cutter bites the materials
into the desired size with less dust and ready to be reused
Screenlss screen, even particle granules with little dust content.
Compact design, small footprint for fast cleaning and maintenance;
Feed box with visual window, and double-layer sound proof are made of
stainless steel.
Gear motor is connected with the main shaft with the coupling, making it
easy to replace cutters and gear motor.

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All service work should be carried out by a person with technical training or
corresponding professional experience. The manual contains instructions for both
handling and servicing. Chapter 6, which contains service instructions intended for
service engineers. Other chapters contain instructions for the daily operator.
Any modifications of the machine must be approved by SHINI in order to avoid
personal injury and damage to machine. We shall not be liable for any damage
caused by unauthorized change of the machine.
Our company provides excellent after-sales service. Should you have any
problem during using the machine, please contact the company or the local
vendor.
Shini Hotline Service:
Headquarter and Taipei factory
Tel: + 886 (0)2 2680 9119
Shini Plastics Technologies (Dongguan), Inc.
Tel: [phone]
Shini Plastics Technologies (Pinghu), Inc.
Tel: [phone]
Shinden Precision Machinery (Chongqing), Inc.:
[phone]

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1.3 Safety Regulations
Follow the instructions in this manual to avoid personal injury and damage to
machine components.
The following safety measures shall be followed when operating the granulator.
1.3.1 Safety Regulations
Electrical installation must only be done by a competent electrician!
Before the granulator is opened for servicing and maintenance, always
disconnect the power with both the main switch and the control switch on
the granulator.
Never put any part of your body through the granulator openings, unless
both the main switch and the control switch on the granulator are in "OFF"
position.
High voltage！danger！
This sign is attached on the control box and the wiring box.
Be careful with the rotating knives, they are very sharp and can cause
personal injury!
Be careful with the rotating knives, they are very sharp and can cause
personal injury!
The granulator should not be able to start before the feed box and storage
box are properly closed.
Attention please!
Ear protection is used during granulating of plastic materials.
Make sure the power supply of the granulator has been cut off before
opening the feed box.

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Attention！
No need for regular inspection because all the electrical parts in the
control unit are fixed tightly！
When operate the granulator, please notice the following signs.
Hazard
High voltage!
May lead to casualty or other serious danger.
Please cut off the power before repairing.
Circuit diagram should only be changed by
professionals.
Grounding is necessary.
Warning
This shield is easy to catch hands and cause
injury.
Keep a certain distance between the hand and
this catching point.
Warning
The cutter are very sharp, can cause injury take
out or open protective cover is not allowed
when it is running.
Keep some distance away from the cutters.
Notice
Read the instruction manual carefully before
operating.
Before start, do the safety device test according
to the instruction. It is not allowed to change the
design of the machine unless it is approved
from the manufacturer.

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1.3.2 Transportation and Storage of the Machine
Transportation
1) SG-L series of granulators are packed in plywood cases with wooden
pallet at the bottom, suitable for quick positioning by fork lift.
2) After unpacked, castors equipped on the machine can be used for ease of
movement.
3) Do not rotate the machine and avoid collision with other objects during
transportation to prevent improper functioning.
4) The structure of the machine is well-balanced, although it should also be
handled with care when lifting the machine for fear of falling down.
5) The machine and its attached parts can be kept at a temperature from
-25 to +55 for long distance transportation and for a short distance, it
can be transported with temperature under +70 .
Storage
1) SG-L series should be stored indoors with temperature kept from 5 to
40 and humidity below 80%.
2) Disconnect all power supply and turn off main switch and control switch.
3) Keep the whole machine, especially the electrical components away from
water to avoid potential troubles caused by the water.
4) Plastic film should be used to protect the machine from dust and rains.
Working Environment
The machine should be operated:
Indoors in a dry environment with max. temperature +45℃and humidity no more
than 80%.
Do not use the machine:
1) This equipment works normally in the environment with altitude within
3000m.
2) At least a clearance of 1m surrounding the equipment is required during
operation. Keep this equipment away from flammable sources at least two
meters.
3) Avoid vibration, magnetic disturbance at the operation area.
Do not use the machine:
1) If it is with a damaged cord.

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2) On a wet floor or when it is exposed to rain to avoid electric shock.
Rejected Parts Disposal
When the equipment has run out its life time and can’t be used any more, unplug
the power supply and dispose of it properly according to local code.
Fire Alarm!
In case of fire, Co2dry powder fire extinguisher should be applied.
It is very important to tighten the screw as required torque.
When process item is longer than feed port, please cut long item into half
until the length is shorter before processing.
Please don’t put materials into the granulator if they are thinner than 2 mm
and are soft and flexible, like rubber.
1.4 Exemption Clause
The following statements clarify the responsibilities and regulations born by any
buyer or user who purchases products and accessories from Shini (including
employees and agents).
Shini is exempted from liability for any costs, fees, claims and losses caused by
reasons below:
1. Any careless or man-made installations, operation and maintenances upon
machines without referring to the Manual prior to machine using.
2. Any incidents beyond human reasonable controls, which include man-made
vicious or deliberate damages or abnormal power, and machine faults caused
by irresistible natural disasters including fire, flood, storm and earthquake.
3. Any operational actions that are not authorized by Shini upon machine,
including adding or replacing accessories, dismantling, delivering or repairing.
4. Employing consumables or oil media that are not appointed by Shini.

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2. Structural Features and Working Principle
2.1 General Description
SG-L series belong to the granulator used beside the IMM, which are designed for
injection molding machine to crush a small amount of materials. Don’t put too
many materials into crushing. The granulators are controlled by main power
switch, emergency stop button, start button, stop button and safety switches.
2.1.1 Working Principle
A
B
C
D
E
Parts name
A. Feed box B. Staggered blade C. Fixed blade D. Teeth blade
E. Storage box Picture 2-1 Working Principle
The materials are dropped into the cutting chamber via the feed box (A). The
block materials are crushed by the staggered blades (B) and fixed blades (C) first,
and then are granulated into even particles by the teeth blade (D) and fixed blade
(C) without the screen. After granulating, the particles will directly drop into the
storage box (E); The cutting chamber is easy to open for cleaning and
maintenance. After this, the granules are ready for re-use in the production
machine, or to be transported to a container for later use.

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2.2 Safety System
To avoid accidental bodily injury during granulator running, a set of safety system
has been designed. High-speed rotating cutter is located in the granulator and
subject to accident. So safety system has been set up to protect bodily safety. In
any cases, the safety system cannot be changed at random. Otherwise the
machine will be under dangerous condition and subject to accident happening.
The maintenance and preservation of safety system shall be done by professional
staff. In case the safety system of granulator is changed, our company will not
perform our commitment. The replacement of all spare parts will be done by SHINI
Company.
2.2.1 Emergency Stop Switch
There is one red button on the control panel. Upon pushing it, the machine will
stop running. Turn the button in the arrow direction as shown on the button, the
button will reset (counter-clockwise).
Emergency stop button
Power button
Picture 2-2 Emergency Stop Switch
2.2.2 Safety Switch
The granulator equips with safety switch on circuit breaker. If feed box changes
the position or circuit breaker trips, it will cut off the power and stop the machine.
The granulator has two safety switches, one is between the feed box and cutting
chamber, and the other one is between the storage box and machine.

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Safety switch
Picture 2-3 Safety Switch
2.2.3 Door lock
The machine’s door lock is a star nut, which can extent the time to open the feed
box to avoid human injury. When opening the feed box, loosen the star nut, and it
will last for a period of time that is totally enough to stop the granulator, so as to
avoid personal injury.
Please check whether the feed box is locked up before starting the machine.
2.3 Options
2.3.1 Manual collection bin
The manual collection bin is convenient for regrind recycling and storing.
Picture 2-4 Manual Collection Bin
2.3.2 Regrind Conveying via Blower & Cyclone (PC type)
This device utilizes loading blower to convey regrind into the cyclone dust
collector to separate the regrind from the air and then the regrind will fall into the
material storage hopper.

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Picture 2-5 Regrind Conveying via Blower & Cyclone (PC type)
2.3.3 Cutter
On the basis of standard cutter 5mm, cutter 4mm or 6mm is provided for option.
5mm 4mm 6mm
4.9 3.9 5.9
5.3 5.3
7.0
Picture 2-6 Cutter Dimension
2.3.4 30-Sec. Instant Recycling System VR Type
The 30-sec. instant recycling system utilizes the high-pressure blower to blow the
regrinds in the material storage tank to the proportional mixer and reuse the
regrinds after mixing, so that the sprues will have physical properties and color
changes due to oxidation and humidification, thus improving the products quality.

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Picture 2-7 Installation of 30-Sec. Instant Recycling System VR Type
2.3.5 30-sec. Instant Recycling System PR Type
The 30-sec. instant recycling system utilizes the high-pressure blower to blow the
regrinds in the material storage tank to the proportional mixer and reuse the
regrinds after mixing, so that the sprues will have physical properties and color
changes due to oxidation and humidification, thus improving the products quality.

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3. Installation and Debugging
This series of models can only be used in working environment with good
ventilation.
Read through this chapter before installation.
Must abide the following installation steps to avoid personnel injuries or
damage of the machine!
Take great care of handing the blades because they are very sharp and
may cause cutting injuries!
Power supply of the machine should be handled by qualified electricians!
Caution!
The blades must be placed steady, and prevent the blades from self-
rotating during installation.
The blades must be placed steady, and keep your hands away from the
blades to prevent human injury.
Notice!
Don’t install the blades with the help of others to prevent human injury.
Lock the rotating blades with a thick piece of wood block on the cutting
chamber.
Notice!
Use protective gloves since the blades are very sharp.
Notice！
When installing the blades, be sure to use new screws and washers.

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3.1 Power Connectors
1) Make sure voltage and frequency of the power source comply with those
indicated on the manufacture's plate, which is attached to the machine.
2) Power cable and earth connections should conform with local regulations.
3) Use independent power cable and ON / OFF switch. The cable's diameter
should not smaller than those applied in the control box.
4) The power cable connection terminals should be tightened securely.
5) The machine requires a 3-phase 4-wire power source, connect the power
lead (L1, L2, L3) to the live wires, and the earth (PE) to the ground.
6) Power supply requirements:
Main power voltage: ±5%
Main power frequency: ±2%
7) Specific power supply specifications please refer to the circuit
diagram of each model.
3.2 Machine Location
Make at least 1 m clearance around the machine to facilitate repair and
maintenance.
Picture 3-1 Installation Space
Move the granulator to suitable place, check and make sure the installation
ground is level; there is enough intensity when it is running.
1m
1m

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Picture 3-2 Installation Diagram
The machine must be installed in the environment with good ventilation.