Automatic Slow Speed Crusher Plastic Grinding Machine for Sprue Runner Scrap Reuse Injection Production System

Product Description

Product Description

Low Speed Sound-Proof Granulators 

Low-speed sound-proof granulators are specialized recycling units designed for rigid and brittle plastics such as PC, Nylon, and ABS. Operating at a precise 20–25 rpm with high torque, these machines utilize a non-mesh design and staggered teeth cutters to achieve a "nibbling" action rather than high-speed impact. This mechanical approach ensures long service life and a quiet operating environment, effectively eliminating the overheating and excessive wear common in traditional high-speed grinding.

In terms of material quality, these units produce a highly uniform regrind with a particle size nearly identical to virgin pellets. By avoiding the friction associated with screens, the process generates minimal powder pollution and "fines," which are the primary culprits for black spots or bubbles in precision injection molding. This preservation of the plastic's physical properties ensures that the recycled material maintains its structural integrity and value throughout the production cycle.

Core Technical Advantages 

•   Innovative Screenless & Non-Mesh Design By eliminating traditional screens, the Plaskit granulator removes friction-induced heat. This prevents material degradation and ensures a "nibbling" precision cut rather than high-speed impact, drastically reducing the generation of "fines" and powder pollution.

•   Precision Staggered Teeth Cutters Equipped with high-hardness alloy staggered teeth, the machine achieves a uniform regrind size that is nearly identical to virgin pellets. This ensures seamless mixing with raw materials without clogging the injection molding feed system.

•   Quiet & Cool Operation Operating at a low frequency effectively eliminates the high-decibel noise and overheating common in standard recycling. This preservation of the plastic's physical structural integrity means your recycled material retains its original value and strength.

•   Zero Black Spots & Bubbles Specifically designed for precision injection molding, the minimal dust output prevents common defects like black spots or bubbles, making it the ideal choice for optical parts, automotive components, and electronics.

 

Actual Shooting

Specification

Model	PL-250	PL-300	PL-400	PL-500	PL-450	PL-600
Crushing Capacity (kg/h)	10-20	20-30	30-40	50-60	50-60	60-70
Power (kW)	1.1	1.5	2.2	3.7	3.7	5.5
Crushing Chamber (mm)	254*242	306*231	415*312	475*383	445*442	635*363
Size of Inlet (mm)	317*246	317*317	423*317	475*384	448*448	608*387
S-Blade Swing Diameter (mm)	209.5	268	268	328	368	328
Pineapple Blade Dimensions (mm)	74*105	89*110	89*110	100	89*110	140*100
Rotary Cutter (Pineapple Blade)	3pcs	3pcs	4pcs	4pcs	4pcs	5pcs
Rotary Cutter (S Blade)	2pcs	2pcs	3pcs	3pcs	3pcs	4pcs
Fixed Blade	3pcs+1pcs	3pcs+3pcs	4pcs+4pcs	4pcs+4pcs	4pcs+4pcs	5pcs+5pcs
Blade Structure	Claw Blade + Pineapple Blade

Core Component Highlights

SKD-11 Premium Rotary Blades

•  Extreme Material Hardness

SKD-11 tool steel ensures exceptional wear resistance during low-speed cutting.

•  Precision Edge Retention

The high-carbon blade design maintains sharp edges for consistent accuracy.

•  Superior Impact Toughness

Reinforced blade architecture prevents chipping or fracturing under heavy loads.

Precision Crushing Chamber

•  Uniform Particle Size

The precision cutting gap ensures consistent granules and minimal dust.

•  Low Noise Operation

Middle-speed rotation technology reduces noise levels for a quiet workplace.

•  Anti-Jamming Safety System

Robust internal geometry prevents material clogging during high-torque crushing cycles.

Stainless Steel Feeding Hopper

•  Zero Contamination Risk

Polished SUS304 surfaces ensure material purity during the feeding process.

•  Rapid Cleaning Access

The quick-release hopper design allows for fast material changeovers.

•  Enhanced Acoustic Insulation

Double-walled steel construction significantly reduces noise during material impact.

Safety Control Panel

•  Instant Emergency Stop

The prominent safety button ensures immediate power cut during emergencies.

•  Intelligent Overload Protection

Automatic motor sensors prevent system damage from unexpected material jams.

•  Secure Interlock System

Safety proximity switches disable the machine when the hopper opens.

Process Demonstration

Company Profile

FAQ

Q: About your factory ? 
A: We are a high-tech enterprise specializing in the research, development, manufacturing, and export of industrial temperature control and material handling auxiliary equipment.
 
Q: What is a slow speed granulator, and how is it different from a normal crusher?
A: It runs at only 20–25 RPM with high torque, designed for beside-the-machine recycling of injection molding sprues and runners.Compared with high-speed crushers, it is much quieter (~85 dB), produces less dust, and saves energy.
 
Q: Can the regrind be reused immediately?
A: Yes. 30-second instant recycling means the material is not oxidized or dampened, so it can be mixed back with virgin material directly and saves material cost.
 
Q: How can we guarantee quality?
A: All our products with CE certificate and our company Strictly comply with ISO900 quality management system. Always a pre-production sample before mass production;Always final Inspection before shipment;
 
Q: What materials can it grind?
A:Rigid sprues and runners of PC, PBT, ABS, nylon and similar engineering plastics.
 
Q: How is your price?
A:  We have our own factory not the trading company. There is no middleman between clients and us. We give customers the most favorable price.
 
Q: What price terms you offer? 
A: FOB, CIF, EXW ,LC and other price terms based on your kind request.
 
Q: Installation and stuff training available from you? 
A: Yes, our engineers will guide machine installation and train your workers.
 
Q: What is the standard of the package? 
A: Conventional Export Wooden Crate Packaging or special package according to customer requirements.
 
Q: Is there after-sales support?
A: 12 Months after B/L date. Any failure occurred within the period due to our responsibility, we'll supply you the spare parts for free, also permanent technical support and consultation all life long for the machines.