Product Overview

The Wet Plastic Crusher is a key processing machine designed for plastic recycling washing systems. It is engineered to reduce the size of waste plastics while simultaneously providing preliminary cleaning during the crushing process.

During operation, water is continuously supplied into the crushing chamber. The water helps reduce friction heat, prevent plastic materials from overheating or sticking to the blades/screens, and remove part of the dirt, paper labels, and contaminants attached to the material surface.

Compared with traditional dry crushing equipment, wet crushing provides better temperature control and improved preliminary washing performance, making it the ideal solution for recycling plants that require cleaner, more consistent plastic flakes for downstream pelletizing.

Typical Position in the Recycling Process

The Wet Plastic Crusher is typically installed after shredding or pre-crushing, serving as the crucial gateway to the high-efficiency washing line:

Plastic Waste Shredding / Pre-Crushing Wet Plastic Crushing (Our Equipment) Friction Washing Floating Washing / Separation Dewatering Drying Pelletizing or Final Recycling Process

Why Choose Wet Crushing?

Zero Melting & Clogging (Overheating Prevention): Traditional dry crushers often melt thin PE films or PET bottle necks due to high frictional heat. Our continuous water-injection system keeps the chamber temperature under 50°C, preventing plastic deformation, sticking, and screen blockage.

3x Blade Lifespan: Water acts as a natural cooling lubricant. By reducing friction between the blades and the plastic, the blade wear-rate is reduced by up to 60% compared to dry crushing, saving you thousands of dollars in annual maintenance and downtime.

Pre-Washing & Contamination Removal: The high-speed shearing force combined with water creates a powerful friction-washing effect. It removes up to 40% of surface dirt, sand, organic waste, and paper labels before the material even reaches the main washing tanks.

Improved Flake Quality: Stable cutting performance helps produce highly uniform plastic flakes with minimal fine powder (fines), creating optimal conditions for washing, drying, and pelletizing.

Key Design Features

Integrated Water-Injection Chamber
The crushing chamber features strategically placed water inlets to ensure even water distribution. This continuous flow washes away abrasive grit (like sand or metal particles) immediately, protecting both the rotor and the blades.

Heavy-Duty Rotor & Optimized Cutting Geometry
Features a heavy-duty, dynamically balanced rotor (available in V-shape, staggered, or paddle designs depending on your material). This geometry delivers a powerful, continuous shear force to maximize throughput and minimize energy consumption.

Premium, Wear-Resistant Blade System
All blades are manufactured from top-grade D2 (Cr12MoV) or SKD-11 wear-resistant alloy steel, vacuum-heat-treated to HRC 58-62. The scissor-like cutting action ensures clean cuts with minimal fines.

Rigid, Vibration-Dampening Frame
Constructed from reinforced, thick-walled carbon steel with solid welding. The split-body chamber design is sealed with water-resistant gaskets to prevent leaks, ensuring smooth, vibration-free continuous operation.

Smart Maintenance-Friendly Design
Features hydraulic screen-cradle opening and a hydraulic hopper-tilt system (on mid-to-large models) for rapid screen cleaning, blade adjustment, and knife replacement.

Material Compatibility & Applications

Plastic Material	Typical Applications / Input Materials	Final Recycled Output
PET Bottles	Beverage bottle recycling, post-consumer PET bottles, thermoformed trays	High-purity PET flakes for rPET sheet/fiber
PP Plastics	Rigid containers, caps, crates, battery cases, PP woven bags, non-woven fabrics	Clean PP flakes ready for compounding
PE Films	Agricultural films, packaging films, stretch wraps, plastic shopping bags, bubble wraps	Clean, dewatered film flakes
HDPE Plastics	Milk jugs, shampoo bottles, detergent drums, pipes, rigid plastic waste	High-density rigid flakes
Industrial Plastic Waste	Production purges, start-up scrap, edge trims, defective plastic parts	Re-usable clean production scrap

Technical Specifications

Below are our standard model configurations. All configurations (including motor brand, blade material, and screen size) can be optimized to match your specific production line requirements.

Technical Parameter	Standard Range & Specification
Equipment Type	Industrial Wet Plastic Crusher
Application	Plastic Recycling Washing System
Processing Capacity	500 kg/h - 3,000 kg/h (depending on material & screen mesh size)
Motor Power	22 kW - 110 kW (Siemens / WEG / ABB Brands Optional)
Rotor Diameter	Φ400 mm - Φ800 mm
Rotor Blade Layout	V-shape / Chevron / Staggered / Claw Type (customized per material)
Blade Material	Premium D2 (Cr12MoV) / SKD-11 Wear-Resistant Alloy Steel (HRC 58-62)
Screen Mesh Size	10 mm - 20 mm (Customizable for different flake requirements)
Chamber Sealing	Heavy-duty water-resistant bearing housing & dual-lip seals
Control System	PLC Smart Overload Protection (Schneider / Siemens electrical components)
Compliance	CE Certified, ISO9001 Quality Management System

Manufacturing, Quality Control & Assembly

Every Wet Plastic Crusher undergoes a rigorous, multi-stage inspection before dispatching from our facility:
Structural Integrity Testing: Ultrasonic welding inspection of the heavy-duty frame to ensure it handles maximum load torque.

Dynamic Rotor Balancing: High-precision balancing of the main shaft to eliminate vibration, protecting bearings and extending machine life.

Water-Tightness Inspection: Pressure-testing the sealing gaskets to guarantee zero water leakage into the main bearings.

48-Hour Dry & Wet Trial Runs: Running the machine continuously prior to shipment to verify hydraulic functionality, running temperature, and noise levels.

Global Technical Support & After-Sales Service

We understand that downtime costs money. That is why we provide end-to-end global support:
12-Month Comprehensive Warranty: Covers all major mechanical and electrical components (excluding consumable wear-parts like blades and screens).

Fast Spare Parts Support: Blades, screens, and belts are kept in stock for immediate international shipping to minimize your downtime.

Overseas Installation & Commissioning: We offer on-site engineer dispatch for assembly, line-integration, and operator training, as well as 24/7 online technical video support.

Frequently Asked Questions

Q: What makes wet crushing superior to dry crushing for film and PET recycling?

A: Wet crushing continuously cools down the cutting chamber. For thin plastics like PE films, it prevents the friction heat from melting the edges and clogging the screen. For PET bottles, the water loosens adhesives, dirt, and labels, performing a valuable pre-wash that makes downstream separation much more efficient.

Q: How often do the blades need to be sharpened or replaced?

A: This depends heavily on your input material's contamination level (e.g., sand, metal, or glass content). Under normal clean production conditions, our SKD-11/D2 blades can run for 150–300 hours before requiring a light sharpening. Our blades are designed to be sharpened multiple times before needing replacement.

Q: Can this wet crusher be integrated into my existing washing line?

A: Yes, absolutely. Our wet crushers are designed with flexible input hoppers and output discharges (screw conveyor or slurry pump output) to easily connect with your existing pre-shredders, friction washers, or sink-float tanks.

Q: How do you prevent water from damaging the shaft bearings?

A: We use external, heavy-duty bearing housings that are physically separated from the crushing chamber. Additionally, we use high-durability, water-resistant seals and labyrinth rings to ensure zero water or moisture can migrate into the bearings.

Q: What details should I provide to get an accurate quotation?

A: To help us recommend the ideal rotor design, motor power, and configuration, please provide:

The type of plastic material you want to process (e.g., PET bottles, baled agricultural film, rigid PP crates).
Your required hourly throughput capacity (in kg/h).
The level and type of contamination expected (e.g., high sand, paper labels, glue).
Your current power supply specifications (Voltage, Hz, Phase).

Hot Tags: wet plastic crusher for washing line, China wet plastic crusher for washing line manufacturers, suppliers, factory, Flat type Crusher Knife, Flexible Screw Conveyor, Injection Molding Rigid Plastic Parts Crusher, Lifting Type Plastic Crusher Machine, PLC Controlled HDPE Pipe Shredder, Tire Shredder Blade