How to Set Up a Scrap Tire Recycling Plant: Process, Equipment, and Facility Planning
Introduction
Scrap tire recycling has a relatively high entry cost but comparatively stable output markets among resource recovery businesses. The complete process — from whole scrap tires to finished rubber granules or powder — involves multiple pieces of equipment in series. Facility space requirements are substantial, and there are genuine technical demands around wire separation and dust control.
This article covers scrap tire sources and intake management, the equipment configuration logic for the complete processing sequence, facility space and flow planning, and rubber powder sales and applications. Whether you are evaluating a new build or optimizing an existing operation, this article provides a practical planning framework.
Scrap Tire Sources and Intake Management
Primary sources
Passenger car tires come primarily from auto repair shops, tire dealers, and vehicle dismantling facilities. Passenger tires are consistent in size, available in large volumes, and come from stable sources — they are the primary feedstock for most scrap tire recycling plants.
Truck tires come from logistics companies, freight carriers, and commercial vehicle repair shops. Individual truck tires are far heavier than passenger tires and contain more steel wire, making them harder to process — but each tire yields substantially more rubber.
Construction equipment tires (bulldozers, wheel loaders) are the largest and heaviest. Standard scrap tire recycling equipment may not be capable of handling them — confirm maximum processable size and weight limits before accepting them.
Intake and staging
Confirm on arrival that no steel rim is attached — rims are steel and do not belong in the rubber recycling process. Some sources deliver tires with rims still on; inspect every incoming tire and remove any rim before the tire enters the processing sequence.
The staging area must be large enough — plan for at least one week's processing volume. Stack height should not exceed two meters due to collapse risk. The outdoor staging area needs drainage design; standing water in stacked tires is a mosquito breeding problem. Taiwan's environmental regulations have specific storage requirements for scrap tires — confirm with the local environmental bureau before finalizing staging area design.
Complete Processing Sequence and Equipment Configuration
The full scrap tire processing sequence has four main stages, each with dedicated equipment.
Stage 1: Primary shredder
Whole tires cannot be fed directly into a granulator — they must first be torn into irregular chunks of 20–50 cm by a primary shredder (known in mainland China as a "tearing machine" / 撕碎機; see: Granulator, Shredder, or Crusher? Industry Terminology Explained for equipment context).
Primary shredder selection must be based on the primary tire type you will process. Passenger tires are relatively light — torque requirements are lower than for truck tires. Truck tires have thick, dense wire cord and heavy rubber — a higher-torque model is required. If both types will be processed, size the equipment to truck tire specifications.
Primary shredder blade teeth wear quickly on scrap tires, especially in contact with wire. Establish a blade tooth replacement schedule based on actual processing volume. Maintain sufficient spare tooth inventory — equipment downtime waiting for parts while teeth are worn out is a direct production loss.
Stage 2: Wire pre-separation (optional)
The chunked material from the primary shredder still has wire and rubber entangled. Some plants add a wire pre-separation step between the primary shredder and granulator — extracting or cutting the main wire bundles before the chunks enter the granulator.
This step is not mandatory, but it delivers significant value when processing truck tires. The high wire content of truck tires causes rapid granulator blade wear without pre-separation. Pre-separation substantially reduces wire entering the granulator and noticeably extends blade service life.
Stage 3: Granulator refining
Chunked material from the primary shredder feeds into a granulator for further size reduction, cutting rubber to the required granule size.
The processing challenge for scrap tire rubber is its high elasticity — standard granulators are ineffective. A high-torque, low-speed machine purpose-designed for rubber is required; the blade must overcome rubber's elastic resistance and cut in cleanly. High speed raises chamber temperature, which increases rubber elasticity and counterproductively reduces granulation efficiency. See: How to Process Rubber and Scrap Tires for detailed technical guidance.
Screen aperture selection depends on the downstream application: rubber granules for sports and playground surfaces typically require 1–5 mm; rubber powder for asphalt modification requires 40 mesh or finer — standard granulators cannot achieve this directly, requiring downstream grinding equipment.
Stage 4: Material sorting
Post-granulation mixed output requires sorting to separate rubber granules, wire fragments, and nylon fiber debris.
Magnetic separation is the first sorting stage — removing ferromagnetic wire fragments. Magnetic separators are mounted above the conveyor belt or use a magnetic roller design; the magnetic roller is more effective for fine metal particles. Regularly clean the separator; accumulated wire reduces magnetic force and must be removed promptly.
Air classification separates fiber debris (nylon or polyester cord fabric) from rubber granules. Fiber is lighter than rubber granules and travels farther in airflow — different trajectories in the air classifier allow effective separation.
Higher output purity commands better market prices. Sorting stage configuration should be determined by target output purity — the higher the quality requirement, the more sorting stages are needed.
Facility Space and Flow Planning
Scrap tire recycling facilities require more space than standard plastic recycling plants, primarily because whole tires are large, staging volume requirements are high, and all processing equipment is oversized.
Area space estimates
The tire staging area is typically the largest footprint in the facility. Plan for at least one week's processing volume. A passenger tire weighs approximately 8–10 kg; a truck tire approximately 50–80 kg — use your daily processing volume and tire type to calculate required staging space.
The primary shredder area needs sufficient space for safe operator loading; the shredder generates significant vibration and noise, requiring a reinforced foundation. Primary shredder discharge typically falls below the machine, requiring a conveyor or discharge pit — coordinate this civil engineering with the building design phase.
The granulator area is typically smaller than the primary shredder, but still requires adequate maintenance clearance on all sides. Rubber dust generated during granulation requires dust collection equipment; ensure adequate ventilation.
Sorting area space depends on the number of sorting devices. Magnetic and air classification equipment are typically mounted in a conveyor system — plan the total line length on the facility floor plan in advance.
The rubber granule storage area should hold one to two weeks of production output while awaiting shipment. Granules are typically stored in bulk bags or loose — allow forklift operating clearances and adequate inbound/outbound vehicle access.
Flow planning principles
The flow from tire intake to output should be as linear as possible, avoiding back-and-forth material transport. Recommended direction: tire staging → primary shredder → granulator → sorting equipment → rubber granule storage, with each stage moving progressively toward the output end.
Tire transport requires forklifts or cranes. All facility aisles must accommodate forklift operation, especially the route from the tire staging area to the primary shredder feed inlet — this is the highest-frequency forklift path.
Noise and dust facility design
Both the primary shredder and granulator are very loud. If the facility is near residential or commercial areas, assess noise impact proactively. Concentrate high-noise equipment on the same side of the building; treat walls with sound insulation; or install high-noise equipment in a separate soundproofed enclosure.
Rubber dust is a systemic management challenge. Install dust collection equipment around the granulator and sorting devices; operators must wear dust masks. Rubber dust presents an explosion risk at high concentrations in enclosed spaces — this is not an exaggeration. Although rubber dust has a higher explosion lower limit than coal dust, high concentrations accumulating in enclosed spaces combined with an ignition source (open flame or static spark) are still a real safety risk. All electrical equipment must have explosion-proof specifications. No smoking or open flames anywhere in the facility.
Rubber Granule and Powder Sales and Applications
Demand for rubber granules and powder is stable, but different output specifications correspond to different markets and prices. Confirm which market you intend to enter before finalizing equipment selection.
Rubber granules (1–5 mm)
This specification is the most readily achievable output from a standard two-stage process. Primary applications:
Sports and playground surfaces are the largest market. Artificial turf infill and running track surfacing both use this granule size in large and stable quantities — the most important sales channel.
Children's playground surfacing is another stable market. Rubber granules' cushioning performance makes them a standard flooring material for children's play equipment areas.
Rubber powder (40 mesh and finer)
Fine rubber powder production requires a grinding stage after standard granulation — higher equipment investment, but better output prices. Primary applications are asphalt modification and waterproofing materials, which have defined fineness requirements and represent a high-value-add output direction.
Steel wire by-product
Scrap tire wire separated during processing is steel scrap and can be sold to metal scrap traders. Truck tire wire represents 15–20% of total tire weight — this revenue stream is not negligible in overall recovery economics.
Fiber by-product
Separated cord fabric (nylon or polyester) can sometimes be sold to textile scrap recyclers, but fiber quality varies widely depending on tire source and age, and market value is inconsistent. Using it as a component in solid recovered fuel (SRF) is generally the more practical outlet.
Conclusion
The entry cost for a scrap tire recycling plant is high — regulatory permits, equipment investment, and facility space all require thorough advance planning. The critical success factors are: correct primary shredder and granulator specification selection; complete sorting stage configuration; and output specifications matched to markets with stable demand.
Before investing, confirm three things: whether your scrap tire supply is stable; your expected daily intake volume; and which market your primary output will serve. These three answers determine the scale of the equipment and the investment return. For rubber scrap processing technical details, see: How to Process Rubber and Scrap Tires. For primary shredder and shredder equipment characteristics, see: Granulator, Shredder, or Crusher? Industry Terminology Explained.