Gearbox Repairs

At Proton Engineering, we carry out right-angle gearbox repairs for Randolph gearboxes, and all major brands, including Amarillo, Johnson, and Capari.

You can rely on us to repair or replace:

• Internal components

• External and structural damage

• Lid damage

• Gaskets and oil seals

• Bearings

• Pumps

• Damaged casing sides

• Associated components

If you’re assembling a new gearbox or replacing an existing one, we can supply all the required spare parts. We distribute our products throughout Australia and New Zealand, ensuring customers—whether local or interstate—have access to the components they need.

Our team can fully dismantle your gearbox and carry out a comprehensive clean of all parts. This includes hot washing and, where required, glass bead blasting. Each component then undergoes a detailed visual inspection. We also perform non-destructive testing on all parts that pass the initial inspection to ensure an accurate and reliable assessment. This process helps identify the root cause of any faults, as well as potential future issues. Following our evaluation, we provide clear repair recommendations along with a no-obligation quote, so you can plan your next steps with confidence.