OTR mining tires reach 1400mm diameter with bead wires thick as your finger. Feed them into a standard shredder, and you get cracked blades, burned motors, and wasted investment. Choosing an OTR tire shredder is not about capacity numbers — it is about whether the machine can swallow these giants.
Why Standard Shredders Cannot Handle OTR Tires
The difference between OTR and truck tires goes beyond size:
| Specification | Truck Tires | OTR Mining Tires |
|---|---|---|
| Diameter | 900-1200mm | 1800-4000mm |
| Bead wire diameter | 6-10mm | 15-25mm |
| Weight per tire | 50-80kg | 500-4000kg |
| Rubber thickness | 15-20mm | 50-150mm |
SL-900 and SL-1200 inlets max out at 1200mm diameter with 50-60mm blade thickness. Facing 25mm OTR bead wire, the blades do not cut — they crash. After a few impacts, blade edges chip and crack.
OTR Capability: SL-1500 vs SL-1800
Only SL-1500 and SL-1800 in the Shuliy lineup handle OTR tires, with different boundaries.
| Model | Max Inlet Diameter | Blade Thickness | OTR Range |
|---|---|---|---|
| SL-1500 | 1200mm | 75mm | Small OTR (1800-2500mm tires) |
| SL-1800 | 1400mm | 100mm | Full OTR range (up to 4000mm tires) |
SL-1500 handles some small OTR tires, but only after sectioning. The SL-1800’s 1400mm inlet and 100mm blades swallow whole mining tires directly.
Essential OTR Preprocessing Steps
Even the SL-1800 works better with preprocessing. Preparation extends blade life and improves output.
Step 1: Remove the Bead
Use an OTR debeader to extract the wire bead. That 25mm steel ring is the biggest threat to your blades. Removing it triples blade life. The extracted beads sell separately to steel mills.
Step 2: Cut into Sections
Use a hydraulic tire cutter to slice OTR tires into 50-100kg sections. Benefits include smoother feeding, even chamber loading, and better output size control.
Section size should stay below 80% of your shredder inlet size, leaving safety margin.
OTR Shredding Line Equipment List
A standalone shredder cannot complete OTR recycling. You need a complete production line:
- OTR debeader: Removes wire beads, protecting downstream equipment
- Hydraulic cutter: Sections whole tires into processable sizes
- Heavy-duty conveyor: Handles 500kg+ tire sections — standard belts collapse
- SL-1800 shredder: Core size reduction equipment
- Magnetic separator: Extracts steel fragments from shredded output
- Vibrating screen: Grades rubber chips by size
This configuration costs significantly more than standard tire lines, but OTR tire recovery value is higher. Single OTR tires contain 10-20x the steel of truck tires and dozens of times more rubber.
Conclusion
Processing OTR tires requires more than buying a high-power shredder. OTR tire shredder selection depends on inlet size, blade thickness, and overall structural strength. The SL-1800 is currently the only Shuliy model that directly processes 1400mm OTR tires. Combined with debeading and cutting preprocessing, you can recycle these mining giants efficiently.
Have OTR tire recycling needs? Contact our technical team for SL-1800 configuration options and complete line design recommendations.