Description
What is a Cone Crusher Top Shell Assembly?
A cone crusher Top Shell Assembly is the massive, heavy-duty structural upper housing of the machine. Its primary critical function is to house the concave liners, support the upper spider bearing assembly, and withstand the intense compressive and multi-directional impact forces generated during high-tonnage aggregate reduction. By maintaining absolute structural rigidity and precise crushing geometry, a premium Top Shell Assembly ensures stable volumetric throughput (TPH) and protects internal components from severe operational stress.
Equipment Compatibility & OEM Cross-Reference
Our aftermarket replacement Top Shell Assembly components and individual sub-parts are precision-engineered to be direct-fit upgrades for Sandvik crushers, significantly lowering your Total Cost of Ownership (TCO) while ensuring zero installation issues and maximum field uptime.
Specification of Top Shell Assembly
Nome do produto: Top Shell Assembly
Categorias: Peça sobressalente do britador de cone >Para britador de cone Sandvik > Top Shell Assembly
Solicitação para Sandvik CH / CS / H / Triturador de cone série S
Produto incluído: Spider Cap, Spider Arm Shield, Top Shell, Spider Bushing, Concave And Mantle, Concave Support Ring
Part Number List
| Model | Número da peça | Description |
|---|---|---|
| CH430/CS429 | 442.8314-00 BG00395477 | Top Shell Assembly |
| CH430/CS430 | 442.7976-01 | Spider Cap |
| CH430/CS430 | 442.8451-01 MM1224761 442.7984-01 MM1223070 | Spider Arm Shield |
| CH430/CS430 | 452.6109-001 N11852050 442.7981-00 N11851337 | Top Shell |
| CH430/CS430 | 442.6473-01 442.6473-MNBR N11852030 BG00237116 | Spider Bushing |
| CH430/CS430 | 442.6470-01 | Oil Seal |
| CH440/CS440 | 442.8553-00 BG00395484 442.8553-902 | Top Shell Assembly |
| CH440/CS440 | 442.7492-01 BG01116734 | Spider Cap |
| CH440/CS440 | 442.7190-01 | Spider Arm Shield |
| CH440/CS440 | 442.7180-01 442.8059-01 N11851365 442.8553-901 N11851213 442.7180-00 | Top Shell |
| CH440/CS440 | 442.9408-01 | Spider Bushing |
| CH440/CS440 | 442.7193-01 | Oil Seal |
| CH660/CS660 | BG00395488 452.4131-901 | Top Shell Assembly |
| CH660/CS660 | 442.8753-01 452.3841-001 N11852332 | Spider Cap |
| CH660/CS660 | 442.8812-01 442.8976-01 N11851740 | Spider Arm Shield |
| CH660/CS660 | 442.9037-00 452.3760-901 442.9037-00 N11851517 452.3760-001 | Top Shell |
| CH660/CS660 | 442.8754-MNBR BG00248051 N11852032 442.8754-01 N11851444 | Spider Bushing |
| CH660/CS660 | 442.8755-01 | Oil Seal |
| CH870 | BG00531868 BG00531830 | Top Shell Assembly |
| CH870 | 452.0553-001 | Spider Cap |
| CH870 | BG00504450 452.1060-001 N11852173 | Spider Arm Shield |
| CH870 | 452.0664-901 452.0664-001 N11852164 | Top Shell |
| CH870 | 452.1619-001 N11852074 452.1619-MNBR N11852033 | Spider Bushing |
| CH870 | 452.1599-001 | Oil Seal |
| CH880 | 452.0266-001 452.0266-01 452.0266-902 | Spider Cap |
| CH880 | 442.9265-00 452.3759-901 | Spider Arm Shield |
| CH880 | 452.0259-901 452.5427-001 N11851545 452.3319-001 | Top Shell |
| CH880 | 442.9266-MNBR N11852034 442.9266-01 N11851560 899.0160-00 | Spider Bushing |
| CH880 | 452.0418-001 | Oil Seal |
| CH890/ CH895 | BG00486352 BG00509994 | Top Shell Assembly |
| CH890/ CH895 | 452.0266-001 452.0266-01 452.0266-902 | Spider Cap |
| CH890/ CH895 | 452.3759-901 | Spider Arm Shield |
| CH890/ CH895 | 452.6235-901 | Top Shell |
| CH890/ CH895 | 442.9266-MNBR N11852034 442.9266-01 N11851560 | Spider Bushing |
| CH890/ CH895 | 452.0418-001 | Oil Seal |
| HP500 | 1027471761 | Cover |
| HP500 | 1038067481 | Countershaft box guard |
| HP500 | 1038067482 | Countershaft box guard |
| HP800 | 1093080219 | Countershaft box assembly |
| HP800 | 1045376433 | Countershaft box |
| HP800 | 1022066795 | Countershaft box bushing |
| HP800 | 1036831540 | Pinion |
| HP800 | 1038069629 | Inner countershaft box guard |
| HP800 | 1062807444 | Oil flinger |
| HP800 | 1068636577 | Countershaft |
| HP800 | 1038069628 | Outer Countershaft box guard |
Main Parts of Top Shell Assembly For Sandvik H CH S CS Series Cone Crusher
The Top Shell Assembly serves as the backbone of cone crushers. This strong steel structure holds everything together for smooth crushing operations. Let’s look at each important part:
O Top Shell forms the main body. Made from tough cast steel, it connects to the crusher’s upper section and holds the concave liners firmly in place.
On top sits the Spider Cap, a protective cover that keeps dust and small rocks from entering the bearing system. This simple part prevents big problems.
O Spider Arm Shield protects the crusher arms. It takes the beating from rocks so the arms don’t wear out quickly.
Inside, the Spider Bushing helps the main shaft spin smoothly. It reduces friction and makes the crusher work better for longer.
O Oil Seal does two important jobs. It keeps lubricant inside where it’s needed and blocks dirt from getting into the bearings.
O Concave Support Ring holds the crushing liners steady during operation. Without it, the liners might move and cause uneven crushing.
Concave Retaining Bolts & Washers work like strong hands that never let go. They keep the concave liners tight and secure.
Jacking Bolts are the helpers for maintenance. They make it easy to lift the top shell when you need to change liners or do repairs.
Core Engineering & Technical Advantages
Because the upper frame module absorbs continuous, heavy crushing shocks and abrasive rock scouring, standard castings can warp or crack under stress. Our premium Top Shell Assembly units are proudly manufactured in China to deliver unmatched heavy-duty durability:
Complete Drop-In Module: Every assembly integrates the heavy-duty top shell, spider cap, spider arm shields, spider bushing, and oil seals, factory-matched and tested for immediate on-site installation.
High-Strength Cast Steel Construction: Poured from advanced structural cast steel to withstand massive mechanical stresses, preventing fatigue cracking and structural deformation under choke-feeding conditions.
Precision CNC Machining: The internal bearing bores and mounting interfaces are machined to exact OEM microscopic tolerances, ensuring a zero-vibration fit for internal bushings and concave support components.
Optimized Protective Shielding: Equipped with high-manganese spider arm shields and durable oil seals to protect vulnerable internal areas from dust infiltration and aggressive impact wear.
Maintenance Guidelines: When to Replace Your Top Shell Assembly
Operating a crusher with a compromised top shell housing or worn internal spider components will misalign the main shaft, leading to catastrophic mantle and concave damage. We recommend thoroughly inspecting the Top Shell Assembly during major maintenance overhauls:
| Inspection Focus | Warning Signs (Replace Immediately) | Best Practice Solution |
| Bore Wear & Clearance | Excessive clearance or out-of-round deformation detected inside the spider bushing bore. | Replace the worn Spider Bushing or the complete assembly module to restore proper shaft alignment and prevent scoring. |
| Structural Metal Fatigue | Hairline cracks, deep gouges, or structural fracturing detected on the main housing or spider arms during NDT. | Pull the damaged component immediately. Never attempt to weld load-bearing structural housings, as they will fail under crushing loads. |
| Seal & Cap Integrity | Severe grooving, oil weeping, or physical damage on the oil seal and spider cap allowing silica dust into the bearing circuit. | Swap the damaged Oil Seal and Spider Cap to prevent abrasive dust from destroying internal upper assembly components. |
Explore More Crusher Main Frame Components
To maintain peak crushing volumetric throughput (TPH) and stable operation, ensure your maintenance inventory is stocked with fully compatible, premium parts. Browse our specific component categories:
Find precision-machined Inner Head Nut For Sandvik Cone Crusher and Main Shaft Assemblies for complete Sandvik rebuilds.
Explore our robust aftermarket spares for Sandvik CH & CS Series Crushers.
View high-performance replacement Bottom Shell Assemblies and Concave and Mantles for Sandvik cone crushers.
