Rupes Backing Pad: M8 981.321N M8 for LHR21
R 1,005.00
- 150mm hard backing pad for LHR21
- M8 fitting, multi-hole slim design
- Velcro interface for quick pad swaps
- OEM Rupes fit and balance
- OEM M8 fit - designed for LHR21 polishers
- Hard plate keeps pad flat under correction pressure
- Multi-hole slim design aids airflow and pad release
- Free shippingOn orders over R1000
- Fast delivery2-4 business days
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Total price R 3,435.00
Built for LHR21
The foundation your correction work stands on
The 981.321N backing pad is not an afterthought - it is the interface between your machine and your pad, and a worn or mismatched plate throws off balance, wastes product and fatigues your results before you even start. This hard 150mm Rupes plate threads directly onto the LHR21 spindle and keeps everything running true.
Why This Plate
Precision starts at the spindle
Four reasons the 981.321N belongs on your LHR21.
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Genuine M8 Fitment
Threads directly onto the LHR21 spindle - no adapters, no play, no vibration.
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Hard Plate Stability
Hard construction maintains even pad contact under correction pressure for consistent cut.
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Multi-Hole Airflow
Slim hole pattern disperses heat and prevents compound balling under the pad.
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Fast Pad Swaps
Velcro interface grips and releases cleanly through hundreds of pad changes.
Genuine Rupes vs a typical generic backing pad
Rupes 981.321N vs a typical cheaper backing pad
A backing pad is easy to overlook until a wobbling plate ruins a correction stage or throws a pad mid-polish. Here is how the genuine Rupes 981.321N compares to a typical budget alternative on the factors that actually matter when you are running an LHR21.
| Feature | DetailerSA | Alternative |
|---|---|---|
| Velcro interface for fast pad attachment and removal | Yes | Yes |
| M8 thread fitment matched precisely to LHR21 balance and oscillation | Yes | No |
| Multi-hole slim pattern for dust extraction and heat dissipation | Yes | No |
| Hard-compound plate that maintains even pressure across the correction surface | Yes | Yes |
| Priced affordably enough for a second dedicated machine setup | No | Yes |
| Guaranteed compatibility with the full Rupes foam and microfibre pad range | Yes | No |
Velcro Interface
Swap pads fast, stay in the flow
Moving between cut, polish and finish stages means pulling and pressing pads without interrupting your work. The Velcro surface on this plate grips cleanly, releases cleanly, and holds up across countless pad changes - exactly what a professional workflow demands.
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Questions
Frequently asked
Which Rupes polisher does the 981.321N fit?
This backing pad is spec'd for the Rupes LHR21 dual-action polisher. It uses an M8 male thread fitting, so always confirm your machine's spindle thread before ordering.
What pad sizes work with this backing plate?
The plate is 150mm in diameter and accepts 150mm Velcro-backed Rupes foam and microfibre pads. Using the correct pad size relative to the plate keeps balance and oscillation true.
Why is a hard backing plate better for correction?
A hard plate transmits the machine's orbital energy more directly into the pad, keeping cutting pressure even across the contact surface. This is especially useful for paint correction where consistent pad-to-panel contact matters. Softer plates are more forgiving on uneven panels but trade off some cutting efficiency.
What does the multi-hole slim design do?
The multi-hole pattern allows air to circulate between the pad and the plate, which reduces heat build-up during extended correction passes and helps compound or polish residue escape rather than balling up under the pad.
How do I fit this backing pad to my LHR21?
Thread the M8 fitting clockwise onto the LHR21 spindle and tighten by hand until snug. Do not use tools to over-tighten - the machine's rotation during use keeps it secure. To remove, hold the pad and turn the spindle by hand counter-clockwise.
How do I attach polishing pads to this plate?
Simply press your 150mm Velcro-backed Rupes pad firmly onto the plate - the hook-and-loop interface grips immediately. To swap pads, peel from the edge with a firm pull. Make sure the plate surface is clean and dry for the best Velcro grip.
When should I replace my backing pad?
Replace the plate when the Velcro surface becomes matted or loses grip, when you notice wobble or vibration that wasn't there before, or if the M8 thread shows any stripping or play. A compromised plate affects your correction results and puts stress on the machine's spindle.
Is this backing pad compatible with other brands' 150mm Velcro pads?
The Velcro interface is a standard hook-and-loop system, so most 150mm Velcro-backed pads from other brands will physically attach. However, Rupes plates and pads are balanced and sized to work together, so for best oscillation and correction performance it is recommended to pair this plate with genuine Rupes pads.