Precision Cast and Machined Components for Heavy Industrial Equipment
Heavy industrial equipment — mining machinery, bulk handling systems, construction equipment, and large-scale industrial drives — contains components that are not wear parts in the conventional sense. Planetary carriers, gear housings, industrial housings, track shoes, and precision transmission components have long service intervals and are replaced infrequently — but when they are needed, they must be produced to tight dimensional tolerances, correct material specification, and with documentation that satisfies the equipment manufacturer’s or operator’s quality system.
This product category is where our investment casting capability and precision machining capacity are most directly relevant. Components in this class are typically produced to client proprietary drawings under NDA, where OEM supply has been discontinued, lead times are unacceptable, or pricing has reached a level that makes qualified alternative sourcing commercially necessary.
Transmission and Drive Components
Gears, sprockets, couplings, and planetary carriers for heavy industrial drive systems require dimensional accuracy at mating surfaces, correct material hardness profile (surface and core), and casting soundness in load-bearing sections. These components are produced by investment casting for smaller, geometrically complex parts and by sand casting for larger structural castings, followed by CNC machining and heat treatment to the specified mechanical property requirements.
Alloy steel grades (equivalent to ASTM 4140, 4340, and similar) are standard for through-hardened transmission components. Material specifications in ASTM, DIN, or equivalent GB grades are accepted; where the specified grade is not directly available, a chemically and mechanically equivalent grade is proposed and confirmed with the client’s engineering team before production.
Relevant product: Planetary Carriers
Industrial Housings and Structural Castings
Large industrial housings — gearbox casings, bearing housings, pump bodies, and similar components — are produced by sand casting in structural cast steel grades, followed by CNC machining of all bearing seats, seal faces, and connection interfaces. Casting weight range covers components from under 10 kg to over 5,000 kg. Bore positions and geometric tolerances on precision features are verified by CMM as standard for components where functional fit depends on these relationships.
Ultrasonic testing (UT) of thick-section castings is applied as standard for load-bearing housings where internal soundness is critical to structural integrity in service.
Relevant product: Industrial Housings
Track Shoes and Ground Engagement Components
Track shoes for mining vehicles, construction equipment, and heavy tracked machinery are subject to abrasion, impact, and cyclic bending load simultaneously. Material selection balances wear resistance and toughness; chromium-molybdenum alloy steel and boron steel grades are typical for this application. Heat treatment to the specified hardness range — verified after treatment — is critical to achieving the intended service life without fracture.
Relevant product: Track Shoes
Custom Castings to Client Drawings
A significant portion of our heavy industrial equipment supply is components that do not fit neatly into a standard product category — custom structural castings, specialised wear components, and replacement parts for equipment where the OEM no longer supports the component. These are produced to client drawings under NDA, with engineering review of the drawing before production is accepted, first-article inspection before batch release, and full documentation supplied with delivery.
For components where only a worn original is available — no drawing, no specification — we can support reverse engineering: dimensional reconstruction from the worn part, material specification inference from hardness and composition testing, and trial production to confirm fit and performance before committing to volume supply.
Relevant products: Chute Sidewalls · Industrial Housings · Planetary Carriers
OEM and Aftermarket Supply
We work with both equipment OEMs — supplying components to drawing for incorporation into new equipment — and aftermarket clients supplying replacement parts to equipment operators. OEM supply requires consistent dimensional accuracy, material compliance, and documentation to support the OEM’s own quality system. Aftermarket supply requires fit compatibility with the existing equipment and performance at least equivalent to the original component.
NDA and intellectual property protection are standard in both supply contexts. We do not supply the same proprietary component geometry to competing clients without explicit authorisation.
For precision casting specifications, transmission component requirements, or to discuss a custom or NDA-based heavy industrial component, contact our engineering team.