755 W. Rialto Ave, Unit B, Rialto, CA 92376 Call us: (714) 204-5167

Industries We Serve

Gearbox repair, gear manufacturing and pump repair for the industries that keep production moving — rebuilt at our Rialto, CA shop, serving California and nationwide.

24/7 Emergency Service24-Month WarrantyPickup & Delivery to Our Rialto, CA ShopNationwide Service

Industries We Serve

Gearbox repair, gear manufacturing, pump and hydraulic cylinder repair — rebuilt at our Rialto, CA shop for customers across California and nationwide.

American Gearbox Repair serves the industries that depend on heavy, continuous-duty rotating equipment. When a gearbox, gear, pump or hydraulic cylinder fails, production stops — so the repair has to be done properly, quoted clearly and returned ready to work. Our Rialto, California shop rebuilds gearboxes, manufactures gears, and repairs pumps and hydraulic cylinders for customers across California and nationwide.

Each industry below has its own equipment and failure patterns — a steel mill drive fails differently from a food-plant mixer or a wastewater clarifier drive. Each page explains the equipment we repair, the common failures, the services we provide and how emergency work is handled. Repairs are done at our Rialto shop, never on your site, and every rebuilt unit carries our 24-month warranty.

Turnaround depends on equipment condition, parts required, job complexity and availability. On qualifying jobs, rush repairs take 24–72 hours, and emergency pickup and delivery is available 24/7. To start, call (714) 204-5167 or request a quote with the brand, model and problem.

Steel Mills

Heavy mill drives rebuilt to hold up under heat, shock loads and around-the-clock production — with emergency pickup and delivery to our Rialto, CA shop.

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Forging

Press drives and forging equipment rebuilt for shock loads and heavy, repeated cycles — with rush repair available when a press is down.

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Mining

Crusher, conveyor and mill drives rebuilt for dust, abrasion and heavy loads — with emergency pickup and delivery when production is stopped.

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Food Processing

Mixers, conveyors and process pumps rebuilt with food-plant washdown and uptime in mind — with emergency pickup when a line is down.

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Wastewater

Clarifier, aeration and lift-station drives rebuilt for constant duty in corrosive, wet conditions — with emergency pickup when treatment is at risk.

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Cement

Kiln, mill and crusher drives rebuilt for dust, heat and heavy loads — with emergency pickup when the plant is down.

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Oil and Gas

Pumpjack, compressor and pipeline drives rebuilt for remote, continuous service — with emergency pickup and delivery nationwide.

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Chemical Processing

Mixer, agitator and process pump drives rebuilt for corrosive service and continuous duty — with emergency pickup when a reactor is down.

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Power Generation

Turbine support, cooling and fuel-handling drives rebuilt for reliable, continuous operation — with emergency pickup when generation is at risk.

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Pulp and Paper

Digester, refiner and paper-machine drives rebuilt for steam, moisture and continuous duty — with emergency pickup when the machine is down.

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Marine

Deck, dredge and port-equipment drives rebuilt for salt air, moisture and heavy loads — with pickup and shipped-in repair nationwide.

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How It Works — For Every Industry

Repairs are done at our shop in Rialto, California — we do not repair equipment on your site. Ship your unit to us, or arrange emergency pickup and delivery. We inspect it, confirm the failure and parts needed, and quote the repair before work starts. Turnaround depends on equipment condition, parts required, job complexity and availability. Rebuilt units are tested where applicable and covered by our 24-month warranty. Call (714) 204-5167 or request a quote with the brand, model and problem.

Emergency Service

When a line is down, call (714) 204-5167 — emergency service is available 24/7. We arrange emergency pickup and delivery to our Rialto shop, prioritise inspection, and, on qualifying jobs, complete rush repairs in 24–72 hours. Rush timing depends on unit condition, parts availability and job complexity, so we confirm a realistic schedule after inspection. See our emergency repair page.

Need a repair quoted?

Call (714) 204-5167 or send a quote request — we will confirm what to send in and how pickup works.

Request a Quote