- All
- Product Name
- Product Keyword
- Product Model
- Product Summary
- Product Description
- Multi Field Search
| Material: | |
|---|---|
| production process: | |
| lead time: | |
| Quantity: | |
QR
In the harshest crushing environments, standard wear parts fail too quickly. Downtime for roll shell replacement or hardfacing can cripple production schedules. Our Bi-Metal Composite Roll Shell represents a step-change in wear technology, specifically developed for roll crushers processing extremely abrasive materials.
The Technology of Composite Casting
Our manufacturing process involves liquid-liquid composite casting. We bond a high chromium alloy wear layer (typically containing 20-30% Chromium) to a tough, low-carbon steel backing plate.
· The Wear Layer: The outer layer, which contacts the material, boasts a hardness of 58-63 HRC. This high hardness provides exceptional resistance to abrasive wear, effectively "armoring" the roll against sharp, hard particles.
· The Backing Layer: The ductile steel backing absorbs the impact and compression stresses during crushing. It prevents the brittle high-chrome layer from shattering under load, ensuring structural integrity even when encountering "tramp" metal or uncrushable materials.
Extended Service Intervals
In applications involving high abrasion, such as glass crushing, slag processing, or hard rock sand making, bi-metal shells can outlast traditional manganese steel by a factor of 2 to 3 times. This drastic reduction in wear translates directly to fewer production stoppages, lower labor costs for maintenance, and consistent product quality over a longer period.
Customized Profiles
We do not just cast a flat plate; we cast the specific crushing profile required by your machine. Whether your application requires smooth shells for fine grinding or toothed shells for primary reduction, we can produce bi-metal castings that replicate the required geometry perfectly. This ensures that the crushing capacity and output size of your machine remain optimized.
Ideal Applications
· Glass Crushers: Glass is highly abrasive and fractures into sharp edges. Our bi-metal shells resist the scratching wear that quickly erodes standard rolls . · Slag and Steel Mill By-products: The high hardness resists wear from metallic inclusions. · Hard Rock Quarries: For operations crushing granite or basalt with high quartz content, these shells provide the best defense against wear.
