Products
Rubber Recycling Blades
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Rubber & Tire Recycling Knives for Tough Scrap:
SHJ KNIFE designs **rubber recycling knives** and **tire recycling knives** for lines that cut passenger tires, truck tires and industrial rubber. Each blade focuses on bite, chip control and a stable load on the drive motor. -
Tooth Geometry Tuned for Rubber:
We optimize tooth height, spacing and hook angle on **shredder blades for rubber** so the knife grabs treads and sidewalls instead of sliding on the surface. This helps reduce smearing, heat build-up and “gummy” edges during long shifts. -
Steel & Heat Treatment for Elastic, Abrasive Loads:
Depending on your scrap mix, we use D2 / Cr12Mo1V1, upgraded alloy tool steels or H13 hot-work grades, and can add carbide or DLC-type coatings. The goal is a hard, wear-resistant edge with a tough core, so your **rubber recycling blades** last longer between grinds. -
Shredder and Crush Blades as a System:
Primary **tire recycling knives**, secondary shredder knives and **rubber crush blades** work as one package. SHJ KNIFE matches clearances and profiles so chips move smoothly from shredder to crusher or mill without overloads or blockages. -
OEM-Compatible & Sample-Based Replacement:
We support OEM-compatible sizes and also build **rubber recycling crush blades** from customer samples or drawings. Once the design proves itself on your line, repeat orders follow the same spec so maintenance teams can swap blades quickly and keep production running.
-
Rubber & Tire Recycling Knives for Tough Scrap:
SHJ KNIFE designs **rubber recycling knives** and **tire recycling knives** for lines that cut passenger tires, truck tires and industrial rubber. Each blade focuses on bite, chip control and a stable load on the drive motor. -
Tooth Geometry Tuned for Rubber:
We optimize tooth height, spacing and hook angle on **shredder blades for rubber** so the knife grabs treads and sidewalls instead of sliding on the surface. This helps reduce smearing, heat build-up and “gummy” edges during long shifts. -
Steel & Heat Treatment for Elastic, Abrasive Loads:
Depending on your scrap mix, we use D2 / Cr12Mo1V1, upgraded alloy tool steels or H13 hot-work grades, and can add carbide or DLC-type coatings. The goal is a hard, wear-resistant edge with a tough core, so your **rubber recycling blades** last longer between grinds. -
Shredder and Crush Blades as a System:
Primary **tire recycling knives**, secondary shredder knives and **rubber crush blades** work as one package. SHJ KNIFE matches clearances and profiles so chips move smoothly from shredder to crusher or mill without overloads or blockages.
Features
Rubber & Tire Recycling Knives for Tough Cutting Conditions
Rubber and tire recycling looks simple on paper. In reality, blades fight tough, elastic material, hidden steel wire, heat build-up and constant impact. When rubber recycling knives start to smear instead of cut, the whole line slows down, motors run hot and operators lose production hours to unplanned stops.
SHJ KNIFE designs tire recycling knives, shredder blades for rubber and rubber crush blades around these real conditions. We focus on tooth geometry, steel grade and heat treatment so your blades bite into rubber, clear the cut and stay sharp longer, instead of glazing over or chipping under load.
Rubber Recycling Blades for Tires and Industrial Rubber
Rubber scrap comes in many shapes: car and truck tires, conveyor belts, shoe soles, industrial sheets and blocks. Each behaves differently when you shred it. With SHJ KNIFE, you can use rubber recycling knives and rubber recycling blades that match your line:
- Tire recycling lines that cut whole tires into chips or TDF.
- Plants that process rubber blocks, strips and cured offcuts.
- Mixed lines where rubber arrives together with textiles, steel or fiber.
For each case, we tune the cutting edge and body strength of the blade. The goal is clean cutting, fewer jams and a stable chip size that downstream screens, granulators and mills can handle.
Types of Rubber & Tire Recycling Blades
Tire Shredder Knives for Primary Cuts
Primary tire shredders do the hardest work. They need tire recycling knives that:
- Grab sidewalls and treads instead of letting them slip.
- Cut through rubber plus textile and steel wire.
- Survive high impact from thick truck and OTR tires.
Our tire shredder knives use robust tooth profiles and reinforced roots. On each project we balance edge sharpness with core toughness, so the knife cuts cleanly but still handles shocks from hard inclusions and uneven feed.
Shredder Blades for Rubber Scrap
Secondary shredders and slow-speed machines finish the job on pre-cut rubber blocks, strips and mixed scrap. Here shredder blades for rubber and rubber recycling blades need:
- Wear resistance for long runs on abrasive rubber compounds.
- Smooth discharge to avoid long strands and "hang-ups" in the chamber.
- Edge stability that resists micro-chipping and keeps chips consistent.
We select steel grades and heat treatment to match your rubber mix and throughput. This helps you keep a predictable particle size and reduce the risk of edge failure during long shifts.
Rubber Crush Blades for Fine Size Reduction
When you need fine chips or granules, rubber crush blades and rubber recycling crush blades decide how stable your product looks. Good crush blades:
- Keep a clean edge at higher speeds.
- Limit heat build-up in the cutting zone.
- Reduce fines and over-ground dust that lower product value.
We design crush blades with controlled clearances and smooth rake angles, so your mill or crusher delivers repeatable output without constant dressing or regrinding.
Blade Steel & Heat Treatment for Rubber Recycling
Rubber does not crack like metal or rigid plastic. It stretches, rebounds and turns cutting heat into surface glaze. Because of this, blade steel for rubber recycling must combine toughness, wear resistance and temperature stability.
At SHJ KNIFE we typically use:
- D2 / Cr12Mo1V1 for standard rubber scrap with moderate steel content.
- Alloy tool steels for high-impact jobs and thicker cross-sections.
- H13 and related hot-work grades where blades run near heat sources or see thermal shock.
We fine-tune hardness across the blade section so the edge stays hard while the core keeps enough toughness to resist cracks and chipped corners. For extremely abrasive or sticky applications, we can discuss tungsten carbide, Teflon-type or DLC surface options after we understand your line and scrap mix.
OEM-Compatible & Custom Rubber Recycling Blades
Many lines already run well-known brands of tire shredders and rubber crushers. You still need blades that match your actual machine and duty cycle, not just a generic catalog size.
SHJ KNIFE supplies OEM-compatible rubber recycling knives and replacement tire recycling knives based on:
Machine model and rotor/stator layout.
Blade position (primary shredder, secondary shredder, crusher or mill).
Existing drawings or physical samples.
We can work from your prints, CAD files or worn samples to build a consistent replacement program. Once the design proves itself on your line, repeat orders follow the same standard so you keep set-up simple and predictable.
All machine and brand names used in our documentation serve only to describe compatibility of replacement parts. They remain the property of their respective owners.
How SHJ KNIFE Supports Your Metal Recycling Blades Program
We design our service model around the way your team actually works on the floor.
- We catalog each metal recycling machine blade by machine brand, position and steel grade, so repeat orders stay consistent.
- We support OEMs, trading companies and end users with industrial replacement blades and drawing management for multiple lines in one plant.
- We reverse-engineer scrap shear blades, cut off knives and metal shredder blades from worn samples when documentation does not exist.
- We discuss your scrap mix, target chip size and maintenance schedule before we confirm a blade solution, so you know why each grade and hardness range makes sense.
This approach helps you treat blades as a controlled program instead of random one-off purchases.
FAQ on Rubber & Tire Recycling Knives
Q1. Why do my rubber shredder blades smear instead of cutting?
Usually the edge geometry or hardness does not match your scrap. The teeth slide over the rubber, generate heat and lose bite. Sharper geometry, better clearance and the right steel and heat treatment help the blade cut cleanly again.
Q2. How often should I change or grind tire recycling knives?
It depends on scrap mix, tonnage and steel grade. Many plants set a tonnage target per edge, then schedule grinding before chip size and power draw drift too far. We can help you define a starting interval and adjust it with real data.
Q3. What is the best steel for rubber recycling knives?
There is no single "best" grade. D2-type steels suit many standard rubber jobs. High-impact and heavy truck tires often need tougher alloy tool steels or H13-type grades in critical positions. Very abrasive mixes may benefit from carbide-tipped or coated edges.
Q4. How can I reduce heat build-up and smoking during shredding?
You can improve tooth geometry, keep knives sharp, check cutting gaps and choose steels that hold an edge under load. In some cases, coatings and better chip evacuation also help keep temperatures under control.
Q5. Can SHJ KNIFE make blades if I only have worn samples?
Yes. You can send sample rubber recycling knives or rubber crush blades to us. We reverse-engineer the geometry and steel, review failure modes and then propose an updated design that fits your shredder or crusher.
Q6. Do you support mixed lines that handle rubber plus other materials?
We often design shredder blades for rubber that also see plastics, textiles or light metal. In those cases we balance toughness and wear, and we may recommend different steels for primary and secondary positions to keep the whole line stable.
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