Wear Parts & Castings
Wear components, castings and forgings for mining and heavy industry.
What we source
- Shaft sleeves and transmission shafts
- Pump casings, impellers and copper bushings
- Crusher and mill wear parts
- Steel & alloy castings and forgings
- Slag pots and heavy cast components
Sourced, quality-controlled and expedited by Crimar’s professional procurement team in China — with the same inspection discipline and documentation we apply to our FRP equipment.
Wear parts, castings and forgings that keep plants running
In a mine or smelter, the machine is bought once but its wear parts are bought again and again. Liners, gears, mantles, shafts and castings wear out on a predictable cycle, and a reliable, quality-controlled source for them is often worth more than the original equipment. Crimar supplies OEM-equivalent and custom castings, forgings and wear parts — engineered from the right alloys, machined to fit, and documented so the part that arrives is the part you ordered.
Because heavy castings and forgings are exactly what China’s foundries and forges do at competitive cost, this is one of the highest-value lines Crimar sources. Our team specifies the material, audits the pour and machining, and can reverse-engineer a replacement from a worn sample or on-site measurements when original drawings are gone.
Castings, forgings and wear parts we supply
Ring Gears & Mill Heads
Large cast ring gears, girth gears and mill heads for ball, rod and SAG mills — cast and machined to run true under continuous heavy load.
Pinions & Drive Shafts
Forged and machined pinion shafts, drive gears and trunnions that transmit the torque of a grinding mill or crusher drive.
Mill & Crusher Wear Liners
Shell and head liners, lifter bars, mantles, concaves and copper bushings — the consumable wear surfaces of mills and crushers.
Slag Pots & Metallurgical Castings
Slag pots, ladles and heavy metallurgical castings for smelting and refining operations, built for repeated thermal and mechanical shock.
Heavy Forgings
Forged shafts, hooks, shackles and pins where forged strength and toughness beat a casting for the duty.
Cast Steel Components
Crusher frames, bases, brackets and structural castings in carbon and alloy steel, machined and ready to install.
From alloy selection to finished part
A wear part only performs if the metallurgy is right for the duty. Crimar matches the alloy to the failure mode — abrasion, impact, heat or corrosion — and controls the process from the pour through machining and heat treatment:
- Wear alloys: high-manganese (Hadfield) steel for impact-abrasion, high-chrome white irons for sliding abrasion, and alloy steels for strength
- Processes: sand and investment casting, open-die and closed-die forging, precision machining and balancing
- Heat treatment: normalizing, quench-and-temper and work-hardening to reach the specified hardness and toughness
- Verification: chemistry and mechanical testing, hardness checks, dimensional inspection and NDE on critical parts
Missing the original drawings? We routinely reverse-engineer replacement parts from a worn sample or field measurements, so an obsolete casting is no longer a reason for extended downtime.
Sourced and inspected, not just traded
Crimar’s own personnel visit the foundries and machine shops to check materials and workmanship, we engage third-party inspectors such as Bureau Veritas and Moody when a project requires it, and mill certificates and inspection records travel with every shipment. These castings and forgings pair naturally with our crushing & milling equipment; see our quality & inspection approach or browse all sourced equipment.