Plastic agglomerator machine is a kind of waste plastic granule regeneration, has the advantages of simple structure, simple operation, high yield, suitable for single variety, large quantity, consistent color and other waste plastic recycling.

Overview

What Is a Plastic Agglomerator?

A plastic agglomerator is a thermal-compaction machine that converts lightweight plastic waste into dense, reusable granules without screw extrusion. Multiple high-speed blades grind and agitate material, generating frictional heat that softens the plastic. Cooling water is then introduced, causing the material to contract and form uniform particles.

The process runs at 80–100 °C — far below the 180–200 °C of conventional extruders. This preserves molecular structure and physical properties, maintaining tensile strength and viscosity that high-temperature extrusion often degrades.

Materials handled: PVC, PP, LDPE, HDPE, LLDPE films, woven bags, tapes, soft pipes, foam, and degradable plastics without carbonizing starch additives. Also processes chemical fiber waste — polyester, acrylic, and polypropylene — into reproduction-ready granules.

Key advantages: Integrated crushing, mixing, and coloring in one step. Compact footprint. Adjustable blade gaps. Energy-efficient high throughput. Can replace standalone kneading machines, producing non-caking particles directly without secondary granulation.

Main Characteristics

Multi-functional — Crushing, mixing, and coloring in one operation, eliminating separate process steps.
Compact — Small footprint fits diverse production environments without major facility changes.
Simple to operate — Straightforward controls and accessible components reduce training time and maintenance burden.
Adjustable — Blade gap adjusts for different materials and particle size requirements. Tool changes are quick.
Energy-efficient — High output per kilowatt-hour. Lower operating temperature means less energy input than extrusion-based alternatives.
Material-protective — Low-temperature processing preserves molecular structure and physical properties of sensitive materials.

How It Works

Chamber design — The body splits into upper and lower sections, joined by four bolts and rotatable 360 degrees for access. The inner chamber uses stamped stainless steel. Infrared heaters and thermocouples between inner and outer shells monitor and control temperature. The lower inner cylinder contacts waste material directly, so it uses thicker stainless steel for wear and corrosion resistance.

Blade system — Two rotating blades (T8A tool steel) mount on a central shaft. Six fixed blades attach to the lower shell tower, evenly spaced around the cylinder circumference. Rotating and fixed blades intersect horizontally. Standard clearance is over 1 mm, adjustable by loosening four nuts on the fixed blade holder and rotating to position. Calibrate with a feeler gauge based on material type and desired particle size. Blades mount with M12 hex socket screws for easy removal, sharpening, and reinstallation. Recalibrate gap after every blade change.

Drive system — Motor drives the vertical spindle through four V-belts. Pulleys on motor shaft and spindle lower end connect the power train. The spindle rides in a bearing housing fixed to the frame. Motor runs at 450 RPM through vertical mounting. Belt tension adjusts forward and backward.

No-Load Test Procedure

After installation, run these checks before first production:
1.Verify all blade mounting bolts are tight
2.Check blade clearance exceeds 1 mm at every intersection point. Adjust per material requirements using a feeler gauge
3.Remove the base side plate, rotate the spindle by hand through the belt, and measure clearance at each of the six fixed blade intersections. Confirm uniform gap before locking the blade holder
4.Use jog mode to verify correct motor rotation. If reversed, swap motor leads and retest
5.Run no-load for one hour. Listen for impacts or vibration. After one hour, stop and recheck all bolts and nuts for loosening
6.Confirm the cooling water pump motor rotates in the direction marked on the housing

Four, operation instructions

(1) Preparatory work before operation:

1. Check whether there are sundries and miscellaneous materials in the barrel of the granulator;
2, preheating and heating, according to the process requirements of processing raw materials, determine the preheating temperature, temperature control instrument to control the fixed temperature;
3, water tank filling standby port;
4. The processed raw materials are overweighed and quantified.

(2) Operation:

1. Open the simplified upper cover of the granulator, press the button of the main motor to start the motor, and then put the loose waste wire group into it one by one, but pay attention to the ammeter can not exceed 60 amperes. (150 L 60 amps, 300 L 80 amps);
2. With the increase of time, high-speed rotary cutting, friction, etc., the temperature in the barrel of the granulator increases with the effect of shear heat, so that the crushing material into a semi-plasticized state C semi-plasticized state refers to the cylinder visible forming particles spin, stirring time is long, the particle forming is large, and vice versa;
3. After cooling water is added, the crushed material is quickly cooled and crushed in the simplified body of the granulator. After adding water, stir for 10-20 seconds (high pressure and other absorbent film for half a minute);
4, pull off the tension spring, open the granulator discharge valve, so that the material discharged, into the container, according to the required granule specifications for screening, after screening the powder granulation;
5, and then tighten the material valve, do the second operation from this cycle, under normal circumstances, every 4-7 minutes can complete a cycle, its work efficiency is very high.

(3) Requirements for processed materials:

1. Varieties must be distinguished;
2. Waste must be clean and free from other sundries.