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Plastic recycling lines, from dirty waste to clean pellets

Washing lines for PET bottles, film and rigid plastics, pelletizing and compounding extruders, and every auxiliary machine between them. Supplied as single machines or as a turnkey plant engineered around your material, output and building.

KR recycling line with plastic flakes and pellets
500–5000 kg/hPET bottle washing lines
100–1300 kg/hFilm and rigid washing lines
150–1300 kg/hPelletizing and twin screw extruders
TurnkeyLayout, installation and operator training

Which line do I need?

Select the waste you will recycle. We show the KR line that fits it and why.

Machine range

Select any machine for full specifications, process flow and advantages.

Ask for a line proposal

How a complete recycling plant works

One supplier for the whole line means matched capacities, one point of responsibility and a faster start-up.

  1. Collect & sortRemove metal and stones, sort by polymer and colour for a better pellet price.
  2. Shred & crushShredders and wet crushers cut bottles, film and drums into flakes.
  3. Wash & separateFriction, hot and float-sink washing remove dirt, labels, glue and oil.
  4. Dewater & dryCentrifuges, squeezers and hot-air dryers bring moisture down for extrusion.
  5. PelletizeDegassing and melt filtration turn clean flakes into uniform pellets.
  6. Pack & sellWeighing scales fill bags or big bags ready for your customers.

Single screw or twin screw?

The most common question from recycling customers. The answer depends on what you sell.

Single screw – for recycled pellets

Best when washed PP, PE, HDPE or film flakes become clean pellets for re-sale.

  • Lower investment and lower energy use per ton
  • High melt pressure for fine filtration and cleaner pellets
  • Tolerates residual sand and dirt with less screw wear
  • Simple operation, maintenance and spare parts

KR-DS double-stage, KR-FF force feeder and KR-TS three-stage lines.

Twin screw – for compounds

Best when you add fillers, colour, fibres or modifiers to make a higher-value compound.

  • Intensive mixing and dispersion of fillers and pigments
  • Modular screws and barrels for each formula
  • Side feeding for glass fibre, CaCO₃ and additives
  • Blends PP and HDPE with compatibilizers

KR-TSE co-rotating twin screw extruders, 100–1300 kg/h.

One team responsible for your recycling line

Over the past decade Kun Rui Machinery has grown from a small workshop into a medium-sized manufacturer with annual sales approaching RMB 70 million. We design and build plastic recycling machinery and extrusion systems for customers worldwide.

Every line is configured around the customer’s material, target output, building and budget, so it runs at its real capacity from the first day.

Plant design & layoutProcess, building and utility layout drawn for your site
Turnkey supplyFrom feeding conveyor to packing scale, matched in capacity
Factory test runLines are tested before shipment with your material when possible
Installation & trainingEngineers on site for commissioning and operator training
Spare partsBlades, screens, screws and wear parts supplied quickly
Remote supportWhatsApp and video support from our engineers

Send us your project requirements

The more we know about your material and site, the more accurate your line proposal will be. You receive a technical offer, layout drawing and quotation.

Lv Long

Overseas Sales Director & Technology Engineer

WhatsApp / WeChat / phone+86 198 6518 6308
+86 159 4987 9362
FactoryShandong Province, China
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Technical data for reference. Final specifications are confirmed in each quotation according to your material and output.