Search by original part number or by equipment model.
Komatsu 830E, 930E and 960E, and CAT electric-drive fleets. Dayton-Phoenix states in its catalogue that it is an OEM supplier to both GE and EMD for dynamic braking resistors — the same ones the truck leaves the factory with. Westrock has been a distributor since 2004, supplying Komatsu USA since the 1990s and Komatsu Chile since 2004.
Radial, J-style and box elements, to the original part number.
Complete grid with new resistors and blowers remanufactured by exchange: structure, diffusers, bus bars, new insulators and wiring.
Direct-replacement radial grid for the 930E-4, solving the heat problems of the original design. Optimised airflow, no structural modification.
Radial dynamic braking module for the CAT electric-drive fleet, directly compatible with the original. We cover the complete module and its spares.
Complete dual assembly, rebuilt and bench-tested before dispatch.
17KG531 / 17KG535 / 17KG498E1 cabinets: structural repair, factory updates, blasting and paint.
Contactors, phase modules, control cards, IGBTs and shunting resistors to original specification.
Built on the APEX platform: battery and radial grid, a decarbonisation route without changing trucks.
Complete teardown, structural repair, blasting and powder coat, new hardware, ROPS re-certified by an engineering firm and functional testing on traction-system simulators before dispatch. Final configuration always comes from your own cab, so discrepancies cannot happen.
The plastic centre console and the old selector are replaced with a metal console and a contactless three-position electronic shifter. A sound-insulation kit comes as standard, which the original cab never had.
P&H 4100 and 2800, CAT 7495. Authorised distributor for Industrial Clutch, the OEM manufacturer of shovel brakes, and authorised remanufacturing centre in Antofagasta.
All four shovel applications — propel, hoist, crowd and swing. New, refurbishment kit or core exchange.
Latch bar redesigned by Westrock engineering, with its spare parts. Eliminates the recurring failure and the unplanned downtime it causes.
Swing ring gear, rollers, races and improved swing shaft, with roller circle retrofit kit. The ring gear is manufactured to your drawing at a partner gear works, ISO 9001:2015 certified and an AGMA associate member. Before any steel is cut, our engineers take site measurements and 3D laser scans.
For the P&H 4100XPB and XPC, the three-stage planetary propel gearbox as a complete new unit: interchangeable across the fleet wherever the 47-spline output socket is fitted, superseding the original 100J5800F5 and equivalent to the R65350F2. For the CAT 7495 shovel, transmission remanufacture at our Antofagasta workshop. Every unit ships with its inspection dossier and certificate of conformity.
Where the original design uses a fabricated, induction-hardened input gear, the Westrock unit runs a one-piece carburised and ground geartrain with a 25° input pressure angle in place of 20°. Second and third stage ring gears are forged rather than cast, and the unit runs standard bearings throughout instead of the proprietary output bearing.
The third-reduction carrier is designed to maintain centre: the original can drop and rub the case when switching between forward and reverse, contaminating the oil with wear particles. The dossier travels with every unit — dimensional control against drawing, ISO 10816 vibration acceptance, material certificates and a no-load test run before final release.
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.
The engineering fix — dimensions and materials
Widens the contact area to return ground pressure to the historical range. Minimum 20% more wear life, with only a clearance modification at the front idler fork.
The original rails are 10 inches wide on an 11-inch path: they groove every shoe and edge-load every roller. Full-width rails give 15 to 20% longer rail life and add to every other component.
More steel where the machine wears.
18% Mn EVIII shoes as standard, work-hardening and dye-penetrant inspected, or alloy steel with induction-hardened paths, pins and pin holes. The choice runs through the whole undercarriage.
The complete track group — shoes, links, rollers, idlers, sprockets — with a technical data sheet per line. Equivalent standard, or improved option with forged 50+ HRC rollers, grease ports and induction-hardened shoes.
The life the engineering supports is written into the warranty. Measured at your own planned inspections, cost per hour reported jointly.
We don't just replace the part: we fix the problem. Every failure on this wall has a dimensional or metallurgical correction in the Westrock line.
Photographs from site inspections. Every component in the line is 100% interchangeable with the original.
Hand over the core, take the ready unit. Downtime is reduced to the changeout window and the repair leaves the critical path.
Propel, hoist, crowd and swing. Factory-certified reman, in Antofagasta.
CAT 7495 shovel transmission remanufacture at our Antofagasta workshop, with an inspection dossier per unit.
Komatsu 830E, 930E and 960E — all series, except the -5. Core in stock, ready in two weeks ex-works.
Complete grid and blowers. CAT 790 series, Komatsu 930E, 830E and 960E.
Bronze bushings and sleeves, frames, heads, bowls, shafts, eccentrics, gears and pinions. Equivalence engineering with dimensional control, material certificates and a dossier per component.
Eccentric, spider and head bushings, sleeves, bearings and thrust washers.
Frames, heads, bowls, rings and counterweights in casting; main shafts, eccentrics and countershafts in forging.
Spiral bevel ring gears and pinions, with tooth contact verification.
Equipment we cover
Authorised distributor for the Regal Rexnord line. Mill girth gears and pinions through a partner gear works under our own engineering control: seven ball mill, SAG mill and rotary kiln gears delivered by the Westrock group into the United States and Canada. Product images and specifications are those of each factory.
Grinding clutch for controlled high-energy starts on heavy-duty mills.
Full-circle pneumatic clutch, one to four discs, with large friction area.
Spring-applied disc brake calipers for SAG and ball mills.
Positive protection against run-back on inclined conveyors and elevators, on the low-speed side of the head shaft.
Dry line — LKB, LK, LKM, LKT — and oil-immersed line — CBA, CBH, HBA, HC — for plant drives.
Friction and centre discs, airtubes, airtube mounting plates, rotary couplings, hoses, springs and fasteners, against your contract code.
Alloy steel cast girth gears and through- or case-hardened forged pinions for ball, SAG, AG and rod mills, rotary kilns, dryers and scrubbers. Manufactured to drawing or supplied as a complete replacement set, with engineers on site for measurements and 3D laser scanning before any steel is cut.
The works does not only manufacture new. It modifies and improves existing gear assemblies: amendments to gear tooth geometry and careful material selection raise flank durability and root strength service factors while keeping fitment compatibility with your original gear unit.
Trademarks, images and product specifications belong to their respective manufacturers and are reproduced in the capacity of authorised distributor.
Westrock partner factories in bronze casting, steel, forging and gears, under our own engineering control and independent inspection before every shipment.
Partner factory with more than 25 years in copper alloys: centrifugal and sand casting, heat treatment and complete in-house CNC machining.
Casting of frames, heads, bowls, rings and counterweights; forging of main shafts, eccentrics and countershafts; spiral bevel ring gears and pinions.
An international testing and inspection body performs final inspection at the factory, with dimensional re-measurement and a report per component before every shipment.
Per-piece quality control
Cathodes and alloying elements with supplier certificate and incoming verification.
Spectrometer analysis twice per heat before pouring.
Controlled speed, centrifugal force and temperature; as-cast verification.
Roughing, ageing, semi-finishing and finishing to the route sheet.
Coordinate measuring machine and FARO arm; report per piece.
Dye penetrant and ultrasonic on every piece; hardness and metallography where the drawing requires.
Heat, dimensional, NDT and origin certificates; final independent inspection.
12-month warranty, equivalent to the original manufacturer's: free replacement of any piece with premature failure from a manufacturing defect or specification non-compliance.
Dayton-Phoenix has built for heavy industry since 1939 and describes itself as an OEM supplier to the global rail, mining and industrial markets. Its rail line covers AC and DC motors, braking resistor systems, ventilation, climate control, locomotive parts and electrification. Freight, passenger and maintenance of way. Westrock is an authorised Dayton-Phoenix distributor and quotes the locomotive line alongside off-highway equipment.
In its own factory catalogue Dayton-Phoenix states it is an “OEM Supplier to both GE & EMD”, with more than 50 years of engineering expertise in hatch design, layout and fan/motor assemblies. The catalogue carries the cross-reference between Dayton-Phoenix and OEM part numbers.
A factory line developed with railroads, engineers and OEMs, tested beyond the original requirement: the toilet is vibration tested with a 400-pound load at four times the locomotive pulse, static load tested at 550 pounds, and filled to capacity and frozen at −30 °F for 12 hours.
Fans and blowers for equipment and braking grid cooling, and climate and heating systems for cabs and passenger cars.
Motors built for the conditions of rail grinding — heavy dust and abrasive environments — alongside braking resistors and auxiliary components from the same factory.
Turns an existing diesel locomotive into a battery-electric or hybrid unit through a portable, swappable module. The factory reports diesel fuel consumption cut by upwards of 77%, with no fast-charging infrastructure and without replacing the locomotive.
Freight · passenger · maintenance of way. Product data and specifications: Dayton-Phoenix Group. Fleet, part number and availability enquiries through the contact channels.
Core reception, metrology, non-destructive testing, evaluation report and repair strategy, assembly and functional testing, under controlled work procedures.
Installed capacity for major components.
Assembly and re-assembly of major sets, repair and uprating of reducers, shaft recovery by welding and metal spray with final machining, metrology against drawing and on-site inspection.
Test benches for control cabinets, auxiliary inverters and cards, plus traction-system simulators for cabs and control groups.
Industrial Clutch · Wichita Clutch · Twiflex · Svendborg Brakes · Stromag
Marland Clutch · Formsprag Clutch
TB Wood's · Kop-Flex · Falk · Rexnord
Authorised distributor and authorised remanufacturing centre, certified by Industrial Clutch to rebuild product to the original manufacturer's specification. We quote any reference in the line against your part number.
Resistor elements, complete grid, blowers
APEX-930 · APEX-790 · SYNC
Contactors, phase modules, cards, IGBT
In its own factory catalogue Dayton-Phoenix states it is an OEM supplier to both GE and EMD for dynamic braking resistors. Westrock is its authorised distributor and authorised remanufacturing centre in Chile.
Operations we supply in Chile
And since 1981, in the mines of the Americas
Give us the model, part number and quantity.
Juan XXIII 6323, Office 50A, Vitacura — commercial management, contracts and supplier qualification.
Authorised Service Centre, La Chimba — core reception, workshop and warehouse.
Westrock Company, Inc. — engineering, remanufacturing, stock and international dispatch.
info@westrock.cl · Chile +56 9 5879 9000 · USA +1 501 838 4147
