RUPES LK900E Mille Gear-Driven Rotary Polisher (Starter Kit)

It is a true forced-rotation machine, not a free-spinning DA orbital. The gear drive locks pad rotation to motor rotation via a 14:1 orbit-to-rotation ratio; the pad cannot free-spin or stall regardless of applied pressure. RUPES markets it as 'gear-driven dual action' because of the 5 mm forced orbit, but the forced rotation mechanism places it in the rotary polisher category alongside single-axis machines.

No. As of 2026-06-05, neither UL Product iQ nor the Intertek ETL database returned a listing for the LK900E or model number LK900E/US/STR. The polisher carries a CE mark for EU sale. CE is a self-declaration mark and is not equivalent to US-independent safety testing. This is consistent with all RUPES BigFoot-line products, which are CE-marked only.

Per Amazon specifications: the LK900E polisher, 150 mm/6 in backing plate (981.089), 125 mm/5 in backing plate (980.037), 250 ml coarse compound, 250 ml fine compound, coarse blue foam pad, fine yellow foam pad, blue microfiber towel, yellow microfiber towel, Claw Pad Tool, and Cable Clamp, packed in a carton shipping box.

The manufacturer-stated no-load range is 265-535 RPM. No independent laser-tachometer community measurement under real polishing load has been documented as of 2026-06-05. RUPES states the electronic governor maintains consistent speed regardless of surface curvature or applied pressure; professional reviewers describe it as smooth across the speed range without bog, but these are qualitative observations, not measured RPM data.

No. Like all rotary polishers, single-axis rotation at speed will burn clear coat when pad pressure is uneven or the machine dwells in one area. Buyers new to paint correction should start with a DA polisher; the random orbital action is forgiving of technique errors in a way that forced-rotation machines are not. The LK900E is sized for detailers who already have correction technique established.