Rubber Devulcanization
USEON’s rubber devulcanization equipment uses a thermo-mechanical process. High temperature and shear in a twin screw extruder selectively break the sulfur bonds of waste tire and industrial rubber and preserve the carbon backbone.
- NR
- SBR
- NBR
- EPDM
- Energy consumption
- < 350kWh/t
- To convert rubber into TDP
- < 2min
- One stage line, SAT35 to SAT85
- 20–500kg/h
- Two stage line for TPE compounding
- 300–1,000kg/h
Break the sulfur bonds, keep the backbone
A thermo-mechanical process
High temperature and shear forces selectively break sulfur-sulfur (S–S) and carbon-sulfur (C–S) bonds, while preserving the carbon-carbon (C–C) backbone structure.
The technology applies to the recycling of various vulcanized rubbers and is used in the remanufacturing of products such as tires, seals and shock absorbers.
Technical specification
No chemical solvents
The process requires no chemical solvents, activators or softeners.
Less energy consumption
Less than 350 kWh per ton.
Continuous process
A highly efficient continuous process ensures consistent quality.
Rapid devulcanization
Converts to TDP in less than 2 minutes.
Less odour
Environmentally friendly.
Broad applicability
Works for scrap tire crumbs, EPDM and other rubbers.
Our solutions
Stop at tire-derived polymer, or go on to TPE pellets in the same line.
| Model | Dia. mm | rpm | L/D | Motor kW | kg/h |
|---|---|---|---|---|---|
| SAT35 | 35 | 500 | 60 | 30 | 20–40 |
| SAT65 | 62 | 500 | 60 | 132 | 250–300 |
| SAT75 | 71 | 500 | 60 | 200 | 350–400 |
| SAT85 | 81 | 500 | 60 | 250 | 450–500 |
| Model | Dia. mm | rpm | L/D | Motor kW | kg/h |
|---|---|---|---|---|---|
| SAT65-SAT75 | 62.4/71 | 500/500 | 52/52 | 110/200 | 300–500 |
| SAT75-SAT95 | 71/93 | 500/500 | 52/52 | 160/250 | 600–1000 |
Applications
Tire manufacturing
Recycled rubber can be used in new tire production, reducing raw material costs.
Building materials
Rubber floor tiles, shock-absorbing pads and other construction materials.
Automotive parts
Remanufacturing of components such as seals and shock absorbers.
Sports facilities
Materials for laying tracks and sports fields.
Projects
SAT75300–400 kg/h Rubber Devulcanization (Thermo-mechanical way)
SAT75300–400 kg/h
SAT65 + SAT75300kg/h Tire Rubber Devulcanization (Thermo-mechanical way)
SAT65 + SAT75300–400 kg/h
Lab line40kg/h Lab Line for Rubber Devulcanization (Thermo mechanical way)
SAT3515–40 kg/h
TPETire Rubber Devulcanization and Compounding
SAT75–SAT951,500 kg/h
Get a quote
Tell us the rubber you have and what the devulcanized material is for: tire-derived polymer, or TPE pellets from a two stage line.
- 01Rubber type and crumb size
- 02TDP only, or TPE compounding in a second stage
- 03Extruder size, line layout and quotation
Souder Chen
Head of Compounding Division
With USEON since 2008. Twin screw compounding, devolatilization and recycling lines.