Description
What is a Cone Crusher Bottom Shell?
The cone crusher bottom shell is a foundational heavy-duty housing component for cone crushers, designed to support the main shaft and eccentric assembly while withstanding extreme mechanical forces during secondary and tertiary crushing. Manufactured from high-strength cast steel (such as ASTM A148), our premium aftermarket bottom shells ensure exact OEM-level fitment, superior structural integrity, and prolonged operational life for your crushing equipment.
Equipment Compatibility & OEM Part Numbers of Cone Crusher Bottom Shell
To ensure precise matching for your mining or aggregate operations, our replacement bottom shells are fully compatible with the following Sandvik models.
(Please verify your required part number against your equipment manual prior to ordering.)
| Crusher Series | Applicable Sandvik Models | Common OEM Part Numbers |
| CH Series | CH420, CH430, CH440, CH660, CH870, CH880, CH890, CH895 | 442.7908-00, 442.7098-00, 442.8735-00, N11851174 452.6866-001, 452.0230-901, 452.6391-901, BG00565178 452.0231-001, N11852352, BG00565215, N11851843 452.3765-001, N11852487, BG00504656, 452.0675-001 |
| CS Series | CS420, CS430, CS440, CS660 | |
| H Series | H2800, H3800, H4800, H6800, H7800, H8800 | |
| S Series | S2800, S3800, HS800 |
Core Functions & Structural Advantages of Cone Crusher Bottom Shell
A well-maintained bottom shell is critical to minimizing downtime and maximizing the yield of your Sandvik Cone Crusher. Its primary structural advantages include:
- Main Shaft & Mantle Support: Houses the eccentric bushing, providing stable gyration for the main shaft to efficiently crush hard rock and ores.
- Crushing Chamber Integrity: Seamlessly connects with the topshell to form a robust, sealed crushing environment.
- Advanced Hydraulic Integration: Engineered to perfectly align with hydraulic cylinder mounts (where applicable) to facilitate seamless Closed-Side Setting (CSS) adjustments.
- Enhanced Wear Protection: Designed to accommodate standard liner plates, preventing abrasive materials from directly impacting the structural frame.
Material Specifications & Maintenance Guidelines
Maximizing the lifespan of your crusher’s base frame requires strict adherence to maintenance protocols and high-grade materials.
- Material Composition: Cast from heavy-duty steel (ASTM A148 equivalent) optimized for high impact and fatigue resistance.
- Maintenance Best Practices:
- Routinely inspect and torque foundation and assembly bolts to prevent operational loosening.
- Monitor inner liner wear; replace liners immediately upon reaching minimum thickness to protect the bottom shell casting.
- Ensure constant, clean lubrication to the eccentric bushing housing to prevent thermal damage or metal-to-metal friction.
Troubleshooting Common Bottomshell Issues
Regular diagnostics can prevent catastrophic equipment failure. Below is a rapid troubleshooting guide for maintenance teams:
| Identified Issue | Potential Root Cause | Recommended Solution |
|---|---|---|
| Micro-Cracking on Frame | Continuous overloading; tramp iron ingress; metal fatigue. | Inspect crushing force logs. Replace bottom shell if cracks compromise structural integrity. |
| Excessive Bushing Wear | Misalignment of the main shaft; contaminated or insufficient lubrication. | Realign the main shaft. Flush the lubrication system and replace oil filters. |
| Hydraulic Fluid Leaks | Degraded or blown seals around the hydraulic mounting points. | Conduct a seal replacement kit overhaul; verify hydraulic fluid viscosity. |
Explore More Crusher Wear Parts
For comprehensive plant maintenance, ensure your inventory is stocked with highly compatible components. Browse our deep categories for specific machine needs:
- Explore precision-machined Cone Crusher Eccentric Bushings.
- View our full range of wear parts for Sandvik CH Series Crushers.
- Upgrade your hardware with high-tensile Crusher Fasteners and Bolts.
