A large restored blue Farrel/Pomini extruder-drive gearbox on cribbing in the Gear Force Machine shop.
Case Study · Extruder Repair

A large Farrel/Pomini extruder drive — rebuilt in-house.

A worn extruder-drive gearbox came off a compounding line. It left torn down, rebuilt, tested, and painted — back to rated throughput in weeks, not quarters.

Equipment
Extruder drive gearbox
OEM
Farrel / Pomini
Industry
Plastics & Rubber
Turnaround
~4 weeks
Warranty
3 years
Before & After

Drag to see the difference.

The same Pomini extruder gearbox rebuilt and repainted on cribbing.
A worn Farrel/Pomini extruder drive gearbox before rebuild.
Before
After

Left: as received, worn and off the line. Right: torn down, rebuilt, tested, and repainted on cribbing.

The Challenge

A worn, failing Farrel/Pomini extruder drive gearbox came off a compounding and profile line, dragging throughput and threatening unplanned downtime. Sourcing a replacement through the OEM meant a long lead time on a critical production asset — measured in quarters, not weeks.

What We Did

We tore the drive down to the bare housing, replaced every bearing and seal, and inspected the gears against tolerance — re-cutting where wear demanded it. Obsolete components with no supply chain were reverse-engineered and manufactured in-house. The gearbox was then reassembled, cleaned, painted, and tested before it left the floor.

The Result

The rebuilt drive shipped back ready to install and returned the line to rated throughput — backed by a 3-year warranty on the rebuild, at a fraction of replacement cost and delivered in weeks, not quarters.

From the Shop
  • A rebuilt Pomini extruder gearbox in blue finish suspended from a shop crane after completion.
  • A rebuilt extruder drive assembly with mounted electric motor and V-belt pulley, staged for test-run at Gear Force Machine.

This was Extruder Repair. Have a similar unit?

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