Thyssenkrupp KB63 Wear Plate — Specifications, fitment, and product overview
Compatible models : KB63‑75 / KB63‑89 / KB63‑114 / KB63‑130
Base material :High manganese steel (Mn13 / Mn18)
Optional material : Cr‑Mo alloy; bimetal composites; hardfacing overlays
In-service hardness : Surface work-hardening to ~HB 450–550
Thickness :40–120 mm
Coverage :Feed lip, upper shell, chute transitions
The wear plate for Thyssenkrupp KB63 gyratory crushers is a heavy-duty protective liner that shields the upper shell and feed zone from abrasive wear and high-impact loading. Built for long service cycles and smooth material flow, it’s a bolt-on component within the broader ecosystem of crusher Parts, ensuring reliable uptime and lower lifecycle costs in hard rock mining.
Key functions
- Primary protection: Prevents direct contact between ore and the crusher housing to reduce structural wear.
- Impact resistance: Tough base metallurgy with work-hardening behavior resists cracking and gouging.
- Flow stability: Contoured surfaces support consistent feed and steady throughput.
- Serviceability: Bolt-on design enables fast change-outs, minimizing downtime.
Core specifications
| Parameter | Typical range / option | Notes |
|---|---|---|
| Compatible models | KB63‑75 / KB63‑89 / KB63‑114 / KB63‑130 | Geometry matched to each chamber revision |
| Base material | High manganese steel (Mn13 / Mn18) | High toughness; work-hardens under impact |
| Optional material | Cr‑Mo alloy; bimetal composites; hardfacing overlays | For highly abrasive ores or extended campaigns |
| In-service hardness | Surface work-hardening to ~HB 450–550 | Base hardness lower; increases with impact |
| Thickness | 40–120 mm | Selected by ore abrasivity and target runtime |
| Coverage | Feed lip, upper shell, chute transitions | Profiles tuned for protection and flow |
| Weight (per plate) | ~300–900 kg (model-dependent) | Curvature and bolt pattern drive final mass |
| Mounting | Bolt-on; countersunk or hex fasteners | Anti-rotation features; shim/gasket as required |
| Finish | Machined seating faces; shot-blasted exterior | Ensures precise fit and clean installation |
| Traceability | Heat number; melt analysis; dimensional report | Full QA documentation provided |
Material selection
- Mn13: Balanced toughness and cost for mixed ore conditions.
- Mn18: Higher work-hardening potential for impact-heavy feeds.
- Cr‑Mo alloy: Better abrasion resistance when impact is moderate but wear is severe.
- Bimetal / hardfacing: Ultra-hard surfaces on tough backing for extreme duty.
Choose materials based on ore abrasivity, expected throughput, and the target interval between change-outs. Coordinate with your maintenance strategy and crusher Parts inventory to optimize total cost of ownership.
Fitment and compatibility
- Model-specific geometry: Plates are curved and contoured to KB63 shell and feed lip; cross-model mixing risks poor flow and accelerated wear.
- Bolt pattern accuracy: Match OEM hole positions and tolerances to maintain clamping force and avoid fretting.
- Critical clearances: Verify gaps to moving components to prevent interference at peak throw.
Installation and maintenance
- Inspection cadence: Track wear thickness and edge erosion; replace before reaching minimum safe thickness.
- Torque discipline: Use calibrated torque and a cross pattern; re‑torque after the first shift.
- Surface preparation: Clean seating faces; remove burrs and corrosion; check flatness and fit-up.
- Change-out planning: Bundle wear plates with adjacent liners for consistent chamber geometry and shorter downtime.
Ordering checklist
- Provide: KB63 variant, chamber revision, ore blend, throughput, and target runtime.
- Deliverables: Drawings, mill certificates, dimensional reports, and packing lists aligned to your crusher Parts logistics.
All manufacturer names, part numbers, model numbers, and descriptions are used for reference and identification purposes only, they are owned by the respective machine manufacturer, including but not limited to FLSmidth®, Metso®, thyssenkrupp®, and Sandvik®. All parts supplied are manufactured and warranted by yonsmen and are not manufactured by or purchased from the Original Equipment Manufacturer. yonsmen has no association with the OEM and does not intend to give this impression.







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