A client in the steel industry came to us for a project that required experienced machinists, certified welders, and rebuild technicians. This scrap chopper gearbox was in serious need of repair and we were capable of providing the precision work that was needed. We started with CNC machining to establish keyway location, and to machine both gears. We also needed to fabricate sheet metal to replace damaged areas. To ensure proper backlash settings, we fabricated and machined a turntable fixture. The reassembly process included changing the line on the gearing, installing a helical drive and anti-backlash gear, and shimming the anti-backlash gear. Once assembled and tested to monitor heat and fit, the 48″ high x 48″ wide x 36″ deep unit was re-installed at the client’s facility. We completed this project in the 4-5 day turnaround time specified and worked to tightest tolerances of 0.0005″ – 0.001″ for backlash.

Our skilled and knowledgeable staff is ready to take on any remanufacturing project no matter the size or difficulty. For more information on this remanufacturing of a chopper gearbox project, please contact us or refer to the table below.


Product DescriptionWhat Application is this Gearbox used in? Chopping of Scrap Metal
Gearbox Remanufacturing Capabilities Applied/ProcessesPrimary:
CNC MachiningEstablish Keyway Location & Machine Both Gears
Sheet Metal Fabrication

Disassembly/AssemblyChange Line on Gearing
Install helical Drive and Anti-backlash gear
Shim Anti-Backlash Gear
Tooling Design & ManufacturingFabricate & Machine Turntable FixtureFacilitates Proper Backlash Settings
ExpertiseExperienced Machinists and rebuild technicians
Certified Welders
Equipment Used to Manufacture PartCNC Mills, Lathes, Blanchard Grinder
Overall Part Dimensions48″ High x 48″ Wide x 36″ Deep
Tightest Tolerances0.0005″ – 0.001″ Backlash
In process testing/inspection performedFabricated Fixture to test Backlash
Final Inspection/Run-Tests to monitor Heat and Fit
Industry for UseWhat is The Primary Industry for this Part? Steel
Delivery/Turnaround Time4-5 Days
Standards MetCustomer Supplied Specifications
Product NameScrap Chopper Gearbox
Copyright mrt © 2022. All Rights Reserved