Gear Force Machine
A rebuilt and repainted Envirex turntable secondary gearbox from a City of Houston wastewater treatment plant, completed at Gear Force Machine.
Water & Wastewater · Nationwide · 24/7

Keep dewatering online and treatment on spec.

Aerator, clarifier, and pump-drive gearboxes and process pumps for municipal and industrial plants — torn down, rebuilt to OEM spec, and back on line before a downed drive puts your discharge permit at risk.

Call 832-729-9906Request a Quote

Gear Force Machine rebuilds the dewatering and decanter centrifuges, gearboxes, and pumps that water and wastewater treatment plants depend on — decanter centrifuge rebuilds, backdrive gearboxes, and process pumps. From municipal treatment plants to industrial process water, we tear the unit down, inspect and measure every wear surface, and rebuild it to original OEM tolerances — with 24/7 emergency response when a centrifuge or drive goes down and the plant can't stop.

Dewatering centrifuges get a full scroll and bowl rebuild with precision rebalancing and matched backdrive gearboxes, so units come back to rated throughput and cake dryness. Obsolete or discontinued municipal units are reverse-engineered and machined in-house, so an out-of-support part number never turns a repair into a capital replacement project. Every job ships with a written condition report, line-item pricing, free nationwide pickup, and a 3-year warranty on gearbox rebuilds. Down right now? Call 832-729-9906.

Freshly rebuilt bronze gears and pinion from a City of Houston Envirex wastewater gearbox at Gear Force Machine.
Equipment We Service

Centrifuges and drives we keep running in water & wastewater.

Dewatering centrifuges and the continuous-duty drives and pumps around them — the units where a failure threatens sludge processing, capacity, and your discharge permit.

  • Decanter dewatering centrifuges
  • Centrifuge scroll & conveyor rebuild
  • Centrifuge bowl repair & rebalancing
  • Centrifuge backdrive gearboxes
  • Aerator & clarifier drives
  • Screw-pump & lift-station drives
  • Sludge & process pumps
  • Obsolete/discontinued municipal units
How We Help

How we keep treatment plants on line.

Centrifuge Repair

Decanter and dewatering centrifuges rebuilt end to end — scroll and bowl repair, precision rebalancing, and matched backdrive gearboxes.

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Gearbox Repair

Complete teardown, inspection, and OEM-spec rebuild on every class of drive — with in-house gear cutting for obsolete municipal units.

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Pump Repair & Rebuild

Sludge, raw-water, and process pumps rebuilt, balanced, and tested — impellers, shafts, seals, and bearings.

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Frequently Asked

Questions from this industry.

Constantly. Water and wastewater plants run centrifuges and drives that are decades old and long out of support. We reverse-engineer gears, shafts, housings, and centrifuge dewatering components from the worn part and machine the replacement in-house, so a discontinued part number doesn't force a capital replacement.

Yes — decanter dewatering centrifuges are core work for us. We rebuild the scroll and conveyor, repair and rebalance the bowl, and service the backdrive gearbox so the unit comes back to rated throughput and cake dryness. Clarifier, thickener, and aerator drives get the same OEM-spec teardown and rebuild.

Emergency jobs on a down plant get prioritized — 24/7 intake, same-day start when possible. Most standard rebuilds ship in one to four weeks depending on size, condition, and parts. Call 832-729-9906 and we'll give you an honest timeline.

Both. We assess on-site when it helps and offer free expedited pickup and delivery nationwide. Most heavy rebuilds happen in our Rosharon, TX shop where we control the machining and testing.

Three years on gearbox rebuilds and 12 months on pump and screw work, covering workmanship and replaced components under normal operating conditions. Questions on a specific unit? Call 832-729-9906.
When You Need Us

Emergency or planned — we're ready when you call.

Pick up the phone for a technician dispatch. Submit a request for a detailed quote. Either way, you'll hear back within the hour.

Call 832-729-9906Request Service

24/7 Nationwide · ISO 9001:2015 · AGMA & AGC Member