PRODUCTS

Heavy-duty Plastic Crusher (Grinder)

Main Structure & Components

A plastic crusher is a size-reduction machine designed to break down plastic waste into smaller flakes or particles for recycling. Plastic crushers are essential for small-to-medium recycling operations, offering high efficiency, adjustable particle size, and low operational costs. They work best with both rigid and flexible plastics, complementing shredders in a full recycling line.

Key structural components include

• Crushing Chamber

Rotor Assembly – A high-speed rotating shaft with mounted blades (typically 3-6 rows of blades).

Fixed Blades (Counter Knives) – Stationary blades that work with rotor blades for shearing action.

Screen (Mesh Grate) – Controls output particle size (common sizes: 8-100mm).

• Feeding & Discharge System

Hopper – Wide-mouth design for feeding bulk plastic waste.

Pusher System (Optional) – Hydraulic or pneumatic ram for forcing materials into blades.

Discharge Conveyor (Optional) – Transports crushed material to next process.

• Drive & Control System

High-Speed Motor (15-132 kW typical, depending on capacity) and belt pulley.

Safety Sensors – Overload protection, auto-reverse for jamming.

• Frame & Soundproofing

Heavy-Duty Steel Frame – Vibration-dampening design.

Noise-Reduction Enclosure – Optional for urban/indoor use.

Applications in Plastic Recycling

Plastic crushers are widely used for:
✅ Pre-shredding – Breaking large plastic items (bottles, containers, films, bags, pipes) before granulation.
✅ Post-Consumer Waste Processing – Crushing PET bottles, PET packing straps, HDPE containers, drums, barrels, HDPE LDPE LLDPE films, PVC pipes, profiles, PC PS PA, EPE EPS expanded foam plastics.
✅ Industrial Scrap Recycling – Reject parts, purgings, sprues from injection molding.
✅ WEEE (E-Waste) Recycling – Shredding plastic housings from electronics.

Differences from shredder:

Faster but less torque (better for brittle/thin plastics).

Smaller output size than shredders (more uniform flakes).

Maintenance & Optimization

Blade Sharpening/Replacement – Dull blades increase power consumption.

Screen Cleaning – Prevents clogging for consistent output.

Bearing Lubrication – Reduces wear on high-speed rotor.

Avoid Overloading – Feed material evenly to prevent jamming.

Industry Applications

Bottle-to-Flake Recycling – Crushing PET/HDPE bottles for washing lines.

Injection Molding Scrap – Re-grinding sprues & rejects for reuse.

Film Recycling Plants – Pre-crushing LDPE/LLDPE rolls before agglomeration.

HVC series of Heavy-duty crusher: