Kombo Washer – Mill Liner Sealing System
The Kombo Washer is an interconnected washer-and-nut assembly that completely seals both the bolt hole and thread to stop slurry fines migrating up the thread and seizing the nut. A non-stick elastomer with conical rings compresses into the thread and hole, while an all-steel prevailing-torque lock-nut maintains clamp load over the entire reline interval—tight, clean, and leak-free performance that reduces risk of liner failure.
The one-piece design is fast to handle, typical installation and removal are ~10 seconds each as the seal won’t stick to the mill surface.

Australian designed and owned, precision-manufactured in Germany (Flaig + Hommel), and available in metric and imperial sizes, the Kombo Washer is engineered for 5+ reuses and future-proofed for robotic installation and removal.

Kombo Washer – Mill Liner Sealing System
Engineered for uptime and safety, the Kombo Washer delivers a complete seal and stable torque so wear plates stay clamped, relines run faster, and housekeeping stays clean.

Why Choose Kombo Washer?
– Complete seal of bolt hole and thread prevents slurry ingress, seizure, and corrosion.
– Prevailing-torque all-steel lock-nut holds tight—won’t back off in operation.
– Rapid install/removal (~10s on, ~10s off) cuts planned downtime; field use shows 3–4 hours saved on a 750-bolt reline.
– Reusable for 5+ relines, delivering multi-year cost savings and less waste.
– Reduces unplanned downtime by sealing imperfect holes and uneven mill surfaces with a lower risk of bolt fatigue and breakage.
– Safer one-piece handling and a non-leak design keep decks clean, dry, and low-slip.
– Proven ROI: KCGM reported ~A$483,705 saving per reline on a 756-washer SAG mill, with <1% attrition and no leaks; other operations have recorded $500k+ savings per event.
– Australian design + German precision; metric & imperial sizes; robotic-ready for the next generation of relines.