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Plastic recycling machinery · Zhangjiagang, China

Rigid plastic recycling system

PP HDPE Rigid Plastic Washing Line

Transforms post-consumer bottles, buckets, crates, drums, and other rigid PP/HDPE waste into clean, reusable flakes.

See the line in operation

From bulky rigid plastic to clean reusable flakes.

See connected Kailong equipment size, scrub, separate, dewater, and collect rigid PP/HDPE material in one continuous route.

  1. 01Feed & size
  2. 02Wash & separate
  3. 03Dry & collect
Explore all 10 stages

01 — Process & equipment

Ten connected stages to clean rigid-plastic flakes.

The flow maps the full recycling route; the equipment grid below explains the nine core machines that perform each operation.

  1. 01Feeding & Conveying

    Load rigid PP/HDPE waste and establish a steady automated feed.

  2. 02Shredding

    Reduce bulky bottles, buckets, crates, and drums into manageable pieces.

  3. 03Crushing

    Cut pre-shredded material into consistent flakes for washing.

  4. 04Friction Washing

    Scrub away sand, dirt, labels, and surface oil.

  5. 05Hot Washing

    Use heated water and detergent on stubborn oil and glue.

  6. 06Density Separation

    Float PP/HDPE flakes while heavier contaminants sink.

  7. 07Mechanical Drying

    Remove surface water with centrifugal dewatering.

  8. 08Air Separation

    Extract lightweight label and film residue from the flake stream.

  9. 09Storage & Collection

    Collect clean, dry flakes for packing or pelletizing.

  10. 10Final Output

    Deliver reusable PP/HDPE flakes for pelletizing or molding.

Equipment across the line

Nine machines, one continuous route.

Size reduction, intensive cleaning, density separation, drying, storage, and line control work as one system.

Material feeding

Belt Conveyor

Feeds bottles, buckets, crates, and drums evenly into size reduction equipment for stable continuous operation.

Belt Conveyor for PP HDPE rigid plastic washing line01
Size reduction

Crusher

Water-assisted cutting reduces pre-shredded rigid plastic into uniform flakes while limiting heat and dust.

Crusher for PP HDPE rigid plastic washing line02
Intensive cleaning

Friction Washer

High-speed scrubbing and water spray remove sand, dirt, labels, and oil before density separation.

Friction Washer for PP HDPE rigid plastic washing line03
Density separation

Washing Tank

Density separation keeps clean PP/HDPE flakes floating while metal, paper, and heavier contaminants sink.

Washing Tank for PP HDPE rigid plastic washing line04
Mechanical drying

Vertical Dewater

Centrifugal dewatering removes surface water and reduces the moisture content of washed flakes.

Vertical Dewater for PP HDPE rigid plastic washing line05
Buffer & collect

Storage Silo

Buffers and collects clean, dry flakes for bagging or stable feeding into the next processing stage.

Storage Silo for PP HDPE rigid plastic washing line06
Final drying

Drying System

Air conveying and thermal drying remove residual moisture after mechanical dewatering.

Drying System for PP HDPE rigid plastic washing line07
Material transfer

Screw Loader

Transfers flakes between washing, drying, and collection modules through an enclosed inclined screw.

Screw Loader for PP HDPE rigid plastic washing line08
Line control

Electric Cabinet

Centralizes line operation, status monitoring, emergency stopping, and overload protection.

Electric Cabinet for PP HDPE rigid plastic washing line09

02 — Technical parameters

Choose the throughput your operation needs.

The final configuration is matched to material size, contamination, utility supply, target throughput, and downstream use.

Request configuration guidance ↗
ModelCapacity (kg/hr)Installed Power (kW)Power Consumption (kW/hr)Water Consumption (m³/hr)
KL-300300100704–5
KL-500500120856–8
KL-8008001801308–9
KL-100010002201609–10
KL-2000200035024513–15

Final specifications depend on the selected line configuration and project conditions.

KL-300

Capacity (kg/hr)
300
Installed Power (kW)
100
Power Consumption (kW/hr)
70
Water Consumption (m³/hr)
4–5

KL-500

Capacity (kg/hr)
500
Installed Power (kW)
120
Power Consumption (kW/hr)
85
Water Consumption (m³/hr)
6–8

KL-800

Capacity (kg/hr)
800
Installed Power (kW)
180
Power Consumption (kW/hr)
130
Water Consumption (m³/hr)
8–9

KL-1000

Capacity (kg/hr)
1000
Installed Power (kW)
220
Power Consumption (kW/hr)
160
Water Consumption (m³/hr)
9–10

KL-2000

Capacity (kg/hr)
2000
Installed Power (kW)
350
Power Consumption (kW/hr)
245
Water Consumption (m³/hr)
13–15

03 — Final product

Reusable flakes for durable next products.

Clean PP/HDPE flakes can support pelletizing, extrusion, and molding routes, subject to the required product specification.

HDPE / PP Flakes01

HDPE / PP Flakes

Clean, dry rigid-plastic flakes prepared for controlled pelletizing and compounding.

Pipes & Conduits02

Pipes & Conduits

Recycled material routed into pipe and conduit extrusion according to the required specification.

Household Goods03

Household Goods

Processed PP/HDPE prepared for molding durable buckets and other household products.

Next step

Define your rigid-plastic washing line.

Share your material mix, largest input size, contamination level, target throughput, and intended output so our team can discuss a suitable configuration.

Start project inquiry

Start a recycling project

Turn your material requirements into a working recycling line.

Share your feedstock, target capacity and required output. Our engineers will help define the right process and equipment configuration.