We answer with a part number, a cross-reference, a price and a lead time — not a brochure.
Komatsu 730E through 980E and CAT electric-drive fleets. New OEM dynamic-braking resistors, remanufactured grid boxes and blowers, full control-group rebuild, and the engineering-improved APEX platform — one channel for the entire drive system.
Dayton-Phoenix is the OEM Komatsu installs at the factory. Same component, direct channel: radial, J-style and box elements for 730E through 980E and CAT electric-drive fleets.
The complete box remanufactured: structure, resistors, diffusers, bus bars and 100% new insulators and wiring. Original design with a 20% improvement, ready for lifting and installation.
The complete dual assembly (930E-4/4SE, 830E AC, 960E, 980E) rebuilt for 20% more life, bench-tested 30 minutes at 2,500–3,600 rpm before dispatch.
17KG531 / 17KG535 / 17KG498E1 cabinets: structural repair, GE updates, blast and paint, plus reman of rectifiers, exciters, phase modules, power supplies, card racks, reactors and contactors.
A drop-in radial module replacing the OEM grid box. 766 kg lighter, cooler running — insulators run 30% cooler than the OEM design — and zero failures in operation at a North American mine. 830E version coming.
Built on the APEX: a hybrid battery and radial grid platform giving a decarbonisation route without changing trucks.
Complete teardown, structural repair, sandblast and powder coat, all-new hardware, ROPS re-certified by an engineering firm, and functional testing on GE traction-system simulators before dispatch. Final configuration always comes from your own cab — so discrepancies cannot happen.
The plastic center console and the old GE SB-9 selector are replaced with a metal console and a contactless three-position electronic shifter. A sound-insulation kit the OEM cab never had comes as standard.
Two ways to work with us: exchange — with a core available in stock, the remanufactured cab is ready in two weeks — or full repair of your own cab through the identical process. The same programme covers 930E and 830E. Your fleet, your call.
The 4100XPB/XPC gained roughly 250 tonnes over the 4100A it evolved from; the 11-inch roller path never widened. Harder steel on the same geometry only delays the result. Our lower works and drivetrain lines are engineered around that fact — and every component is 100% interchangeable with OEM.
The engineering fix — dimensions and materials
Widens the contact area to return ground pressure to the historical P&H range. Minimum 20% more wear life at roughly a 15% premium, with only a clearance modification at the front idler fork.
OEM rails are 10 inches wide on an 11-inch path — they groove every shoe and edge-load every roller. Full-width rails give 15–20% longer rail life plus 5–10% to every other component.
More steel where the machine wears: 7.19″ pin lugs (vs 6.19″ OEM), 6″ of roller support (vs 4″), deep case hardened rollers at 50+ HRC, forged 4340 rear idlers and ToughMet bushings documented at 30,000 hours by Materion.
18% Mn EVIII shoes as standard — work-hardening, dye-penetrant inspected — or alloy steel with induction-hardened paths, pins and pin holes for operations that standardise on alloy. The choice runs through the whole undercarriage.
Carburised and ground one-piece geartrain, forged 2nd and 3rd ring gears, 25° input pressure angle and standard bearings throughout. Every unit ships with a 104-page inspection dossier and Certificate of Conformity.
Direct supply of R67171D1 for the 4100, with competitive lead time and price.
The complete track group — shoes, links, rollers, idlers, sprockets — with a Westrock technical data sheet on every line. OEM-equivalent standard, or the engineering-improved option with forged 50+ HRC rollers, grease ports and induction-hardened shoes for 10–20% more life.
Assembly weight, guide width, 4340 steel tumblers, ToughMet bushings, forgings — mating parts designed together for each site: common failures eliminated, more hours per set.
We don't just replace the part: we fix the problem. We are an engineering company — every failure on this wall has a dimensional or metallurgical correction in the Westrock line.
Photographs from real site inspections. The E-ADS line corrects every one of these failure modes — and is 100% interchangeable with OEM.
Hoist, crowd, propel and swing: the brakes the OEM factory-fits on P&H and CAT shovels, supplied by Westrock since 2006 — new at 50% saving versus OEM list, or remanufactured under the BKT Core Exchange programme.
We are the only authorised BKT remanufacturing centre in Chile. The process runs in our Antofagasta workshop and is certified by Industrial Clutch, the OEM factory: complete teardown, shot-blasting of the housing, 100% new IC kit and bench testing before delivery.
More than 300 brakes delivered at Collahuasi across ten-plus years of continuous service, and contract-ready repair-and-exchange programmes for 4100XPB/XPC and CAT 7495 systems.
Every brake is quoted against your shovel's part number — below, an extract of the OEM → Westrock OPM cross-reference.
And since 2006 we distribute the Regal Rexnord brands — the full line, not just shovel brakes:
| Shovel model | Brand | Application | OEM PN | Westrock OPM PN |
|---|---|---|---|---|
| P&H 4100A | Komatsu | Hoist | R24170D1 | 212620 |
| P&H 4100A | Komatsu | Swing | R24170D1 | 212620 |
| P&H 4100A | Komatsu | Propel | R53137D4 | 213155 |
| P&H 4100A | Komatsu | Crowd | R53137D3 | 213155 |
| P&H 4100XPC-AC | Komatsu | Hoist | R66185D1 | 214015 |
| P&H 4100XPC-AC | Komatsu | Swing | R42786D1 | 213335 |
| P&H 4100XPC-AC | Komatsu | Propel | R53137D4 | 213155 |
| P&H 4100XPC-AC | Komatsu | Crowd | R41760D1 | 213328 |
| P&H 4100XPC-DC | Komatsu | Hoist | R56316D2 | 213680 |
| P&H 4100XPC-DC | Komatsu | Swing | R42786D1 | 213335 |
| P&H 4100XPC-DC | Komatsu | Propel | R42784D1 | 213327 |
| P&H 4100XPC-DC | Komatsu | Crowd | R41760D1 | 213328 |
| CAT 7495 | Caterpillar | Hoist | 461-9585 | 213530-AS |
| CAT 7495 | Caterpillar | Swing | 462-6704 | 211812-AS |
| CAT 7495 | Caterpillar | Propel | 445-3537 | 208755-A |
| CAT 7495 | Caterpillar | Crowd | 462-6797 | 211485-AS |
Extract from the OPM catalogue. Full cross-reference for your fleet — including 4100XPB, 2800XPC and CAT 7495 HD — against your part number, on request.
Pitmans, main shafts, countershafts, gears, mantles, concaves and bushings for primary and secondary crushing — OTS equivalence engineering with dimensional QC, material certificates and a manufacturing dossier on every major component. Already supplied under contract to Chile's leading operations.
Parts manufactured and dispatched under Westrock orders. Every major component travels with its dossier: material certificates, dimensional control and NDT.
One purchase order, one logistics channel, DAP Chile — world-class OEM brands through a direct Westrock channel.
Screening and mill lining through the same channel: vibration dampers, rubber discharge liners and lifters, quoted against your part number.
Holdbacks for inclined conveyors and elevators, protecting the drive against a loaded stop.
For mills, crushers and winches — the same OEM house as the shovel brakes.
Plant drive couplings that damp and protect the power train.
Large-diameter bearings of German origin with traceability and certificates, for mills, pulleys and crushers.
GE simulators, test benches and a clean room — the installed capability behind every component we dispatch.
Statex 1, 2 and 3 · AC Drive GTO (cabinet 498) · AC Drive dual IGBT (KG535) · auxiliary inverter bench with load testing · auxiliary inverter transformer bench · FD cards.
A dedicated facility for large components and 326 GE/Wabtec part numbers in stock, served by 10-tonne overhead cranes.
Complete teardown, structural repair, powder coat, all-new hardware, ROPS re-certification and GE simulator testing.
Diagnosis, repair and testing of electronic control cards in a controlled environment, with component-level soldering.
Test and verification of control cabinets, auxiliary inverters and power components before dispatch.
Training room with simulators and projector. Custom programmes on Statex 3 (Windows or DOS) and AC Drive (GTO or IGBT inverters) for fleet maintainers.
Factory-direct channel for Dayton-Phoenix — the OEM of the 930E dynamic braking system — and for years the supplier of these same components to Komatsu LATAM itself.
Supplying Industrial Clutch / Wichita Clutch brakes since 2006, and the only authorised BKT REMAN centre in the region.
Authorised DPG REMAN centre — the only one for APEX-930 in Chile — with warehouse stock in Chile and the USA, authorised service in Antofagasta and an office in Santiago.
Every component 100% interchangeable with OEM. You are never captive to a single source, including us — and every reference is callable.
Zero-risk trial model: start with shoes on one machine under a 20,000-hour warranty, measured at your own planned inspections, cost per hour reported jointly. Format already proven with Antofagasta Minerals.
Operations served
Factory channels & cross-referenced OEM platforms
We answer with a part number, a cross-reference, a price and a lead time — not a brochure.
Juan XXIII 6323, Oficina 50A, Vitacura — commercial management and contracts.
Workshop and authorised service centre — core reception, brake exchanges, 798AC service.
Westrock USA — remanufacturing, stock, consolidation and international dispatch.
Leon Alexander · Partner | CEO · leon@westrockusa.com · +56 9 9161 6115 · +1 501 838 4147
