Injection molding recycling
Pulverize GPPS sprues, runners, rejected parts and trims for a controlled blend with virgin material.
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Product Overview
The ATM500 is a compact disc-type pulverizer for reducing GPPS (general purpose polystyrene) sprues, runners, rejected parts and other granulated scrap to fine powder. Its rotating and fixed discs grind the material, while a cyclone, vibrating screen and dust collection system support powder recovery.
Grinds GPPS production scrap at a stated capacity of 30–50 kg/h for reuse in suitable extrusion, injection molding or compounding processes.
Uses a 480 mm grinding chamber, 22 kW main motor and 4680 RPM rotating speed.
Includes blade cooling, a 0.8 m vibrating screen, cyclone collection and dust collection bags.
30–50 KG/HCapacity
22 KWMain Motor
480 MMChamber Diameter
4680 RPMRotating Speed
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Materials & Output
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Applications
Masterbatch production
Use GPPS powder as a carrier resin when formulating color or additive masterbatch.
Plastic modification and compounding
Blend GPPS powder with fillers or additives in suitable polystyrene formulations.
Coating and adhesive formulations
Prepare fine GPPS powder for formulations that call for polystyrene resin powder.
Foam-related material preparation
Process GPPS solid scrap for suitable foam compounding or insulation formulations.
Laboratory and pilot trials
Run small batches for material development and formula testing.
Filler applications
Evaluate GPPS powder as an additive in compatible plastic, rubber or adhesive formulations.
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Core Advantages
GPPS Scrap Recovery
Turns sprues, runners, rejected parts and trim into powder that can be evaluated for reuse in GPPS processing.
Controlled Fine Grinding
Disc grinding and an 800 mm vibrating screen help produce a consistent fine powder.
Cooling for Heat-Sensitive Resin
The blade cooling system and supplied chiller help limit heat buildup while processing GPPS.
Contained Powder Collection
A 304 stainless steel cyclone, conveying pipes and nine dust collection bags support powder transfer and collection.
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Product Details
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Machine Video
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Technical Parameters
| Parameter | Specification |
|---|---|
| Model | ATM500 |
| Material | GPPS (general purpose polystyrene) |
| Grinding chamber diameter | 480 mm |
| Main motor power | 22 kW |
| Rotating speed | 4680 RPM |
| Fan power | 3 kW |
| Rotary valve power | 1.1 kW |
| Vibrating screen diameter | 800 mm |
| Vibrating screen power | 0.55 kW |
| Capacity | 30–50 kg/h |
| Final powder size | Below 0.3 mm (approximately 50 mesh) |
| Power supply | 380 V, 50 Hz |
Included Configuration
| Parameter | Specification |
|---|---|
| Dust collection | 9 collection bags |
| Cyclone separator | 304 stainless steel |
| Conveying pipes | 304 stainless steel |
| Blade cooling | Included |
| Chiller | 2 HP ultra-low-temperature chiller |
| Bearings | SKF |
| Vibrating feeder | Included |
| Silo | Stainless steel |
| Grinding blades | High-speed wear-resistant steel; 6–8 resharpenings stated |
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Factory Strength
20+Years Experience
20MAnnual Sales
72hPre-delivery Test
CE & ISOCertified Machines
Integrated factory and exporter with independent R&D, mould machining, complete machine inspection, and overseas commissioning support.
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Delivery & Container Loading
Polestar Machinery arranges machine packing, container loading checks, and export delivery coordination for plastic extrusion lines and auxiliary equipment.
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Customer Projects
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Frequently Asked Questions
What is the main motor power?
The main grinding motor is 22 kW.
What power supply does the ATM500 require?
The specified power supply is 380 V at 50 Hz.
What is the rotating speed?
The stated rotating speed is 4680 RPM.
What is the fan power and how many dust collection bags are included?
The fan is rated at 3 kW, and nine dust collection bags are included.
What is the rotary valve power?
The rotary valve motor is rated at 1.1 kW.
Is a vibrating screen included?
Yes. The screen is 0.8 m in diameter and its motor is rated at 0.55 kW.
Can the grinding blades be resharpened?
The supplier states that the high-speed wear-resistant steel blades can be resharpened 6–8 times.
Does the machine include blade cooling?
Yes. A blade cooling system is included.
What material is the cyclone separator?
The cyclone separator is made from 304 stainless steel.
Is a chiller included?
Yes. The stated configuration includes a 2 HP ultra-low-temperature chiller.
Are stainless steel conveying pipes included?
Yes. A set of 304 stainless steel conveying pipes is included.
What brand are the bearings?
The specified bearings are SKF.
Does it have a vibrating feeder?
Yes. A vibrating feeder is included.
Is a silo supplied?
Yes. A stainless steel silo is included.
What is the final powder size?
The supplier specifies powder below 0.3 mm, approximately 50 mesh.
What is the processing capacity?
The stated GPPS processing capacity is 30–50 kg/h.