China PP Bumper Paint Removing Machine Factory and Manufacturers

Product Overview

PP Bumper PaintRemoval Equipment Introduction

I. Mainstream Solution: Friction Thermal PaintRemoval Complete Line (Paint removal for crushed flakes, widely adopted by plastic recycling plants)

Complete Process Flow

Bumper bulk shredding → crushing (12-25 mm flakes) → Friction Paint-Removal Machine (Turbo washer main unit) → sinkfloat separation rinsing tank → highspeed dewatering machine → airseparation for paint powder removal, to obtain wellcleaned PP flakes.

Core Equipment: Friction Paint-Removal Main Host

Working Principle: High-speed blades drive PP bumper flakes to collide and rub violently against one another. Heat generated by friction, together with small-volume alkaline water and grinding media, fatigues and cracks the paint coating so it peels off from the PP substrate. Paint residues turn into fine powder and are separated and discharged in subsequent rinsing and air-separation procedures. It is mainly a physical process assisted by a small amount of additives and will not corrode the PP substrate.

1. Structure: Horizontal cylinder, wear-resistant alloy blades, high-torque reducer, heating-insulated interlayer, water & chemical dosing port, discharge gate, and wear-resistant inner liners.

2. Reference Key Parameters - Single-unit capacity: 300-1200 kg/h - Rotation speed: 450-750 rpm - Working temperature: 60-85 ℃ (self-generated frictional heat; auxiliary coil heating available) - Paint-removal rate: 85-95 % (subject to aging condition of original bumper paint)

3. Full-line supporting equipment Shredder → crusher → friction paint-removal host → rinsing water tank → screw elevator → high-speed centrifugal dewaterer → air classifier for paint powder removal.

✅ Advantages

1. Suitable for large-volume scrap bumper recycling. Moderate investment cost; widely used by domestic and overseas recycling factories.

2. Minimal damage to PP substrate; output flakes can go directly to pelletizing.

3. Compatible with mixed scraps such as EV shells and motorcycle plastic parts.

4. Spare parts including blades and liners are readily available domestically for convenient maintenance.

II. . Core Selling Points (For product detail page & quotation)

The substrate of PP car bumpers is polypropylene, whose surface is coated with composite PU paint layers. If the paint layer is not thoroughly removed, the regenerated pellets will suffer excessive black spots and poor toughness, and cannot be used for high-grade recycled materials. The mainstream industrial solution is crushing-friction thermal paint-removal production line (mass-production mainstream for the recycling industry). Laser paint-stripping and chemical alkaline washing are alternative options.

1. Developed specifically for painted automotive PP bumpers. High-speed friction thermal washing efficiently strips PU paint layers and reduces black-spot defects in recycled materials.

2. Wear-resistant alloy blades resist abrasion from sand and grit for stable long-term operation.

3. Self-generated frictional heat; optional coil oil heating adapts to different ambient-temperature conditions.

4. Material-contact parts can be supplied in 304 stainless-steel to avoid rust contamination.

5. Full-automated integrated line: shredding, crushing, paint-removal washing, rinsing, dewatering and air classification.

6. Produce clean PP flakes to improve quality and market value of regenerated pellets.

Important note for sales communication: Car bumpers have dual-layer primer-topcoat paint. 100 % complete paint removal cannot be achieved; 85-95 % paint-removal rate is good industrial performance. Tiny residual paint specks are normal in commercial recycling.

05-Unit introduction :

Machine name

Introduction

Manual sorting belt conveyor

Function: manually sort out PVC bottle, labels, and other impurities.

Double shaft shredder

break the material to 40-50mm

Belt conveyor and metal separator

Rinsing wash tank

For PP PE bottle rinsing, metal, stone and other submerged impurities from the material

PTC Wet Crusher

Fine grinding

1. Blade change without opening the cover and without moving the

belt, enabling quick Blade changes.

2. Equipped with twin-screw forced feeding mechanism, ensuring high

output and stable feeding.

3. Spline knife shaft mechanism results in low powder content and

high output

Floating washing tank

Used to rinse materials, impurities with density greater than 1 gram / cubic centimeter are sunk to the bottom, and PP materials with density less than 1 gram / cubic centimeter are floating and discharged.

Hot&friction washer

Rubbing clean the material and remove the foam and paint on the material surface by heating,

Used to add detergent and heat the flakes when high-speed friction cleaning, removing dirt.

Auto chemcial dosing feeder:

This is a fully automatic dosing system that integrates chemical dissolution, maturation, and injection into one unit. The equipment controls the dosage based on the desired concentration of the chemical solution, automatically mixing, dissolving, and maturing the flocculant, which is then injected into the treated water via a dosing pump. This significantly simplifies the complexity of using flocculants, ensures an automatic and precise dosing process, and reduces chemical consumption.

Zig-zag Air sorter

Separate label dust from materials

Floating washing tank

Centrifugal dryer

dehydrate the rinsed material at high speed, and separate the impurities contained in the material to ensure the high cleanliness of the material entering the subsequent cleaning system.

Hot air screw dryer

Used for further hot air drying of dewatered materials.Low noise ,no choke ,less powder dust .

DCS intelligent recycling line control systemUpper computer control system:Features：

①The production process is controlled in real time, and data .

② Monitor the operating status of the equipment in real time

③The system is equipped with an intelligent medical examination module to remind the equipment of regular inspection items in real time to avoid false or missed inspections.

Write your message here and send it to us

PP Bumper Paint Removing Machine