Rupes iBrid HLR21: The Cordless BigFoot Polisher, Explained
For years the first question about any polisher was where the nearest outlet is. Cords decide how you work: which bay, which side of the car, what you drag across finished paint. So when Rupes built a BigFoot that runs with or without one, it changed more than the spec sheet.
The iBrid HLR21 is that machine. We stock the full kit at the shop, and this post covers what it is, what is actually in the box, and the questions we hear before people buy one.
What the Rupes iBrid HLR21 is
The HLR21 is the large-throw polisher in the Rupes iBrid BigFoot family. iBrid is the point: the tool runs cordless on an 18V battery or corded from its power supply, and it moves between the two without changing how it behaves on the panel.
It spins a 150mm, 6 inch backing plate on a 21mm orbit at 3000 to 4500 RPM, with electronic speed control, overcurrent protection, and an LED indicator. Without the battery it weighs 1.95 kg, about 4.3 pounds, which is light for a machine with this much throw.
What comes in the Basic Kit
The kit is closer to a complete correction setup than a bare tool:
- BigFoot iBrid HLR21 polisher
- 2 DA Intermediate foam pads and 2 DA Fine foam pads
- 2 Coarse wool pads and 2 Fine wool pads
- DA Coarse and DA Fine polishing compounds
- 2 rechargeable 18V batteries
- Dual battery charger
Eight pads and two compounds means you can walk from cutting to finishing without a second order. The two batteries matter more than they look: one charges while one runs, and the numbers below explain why that works out to continuous use.
HLR21 vs HLR15 at a glance
| HLR21 | HLR15 | |
|---|---|---|
| Backing pad | 150mm, 6 in | 125mm, 5 in |
| Orbit | 21mm | 15mm |
| Battery | 18V | 18V |
| Battery run time | 30 to 40 min | 30 to 40 min |
| Charge time | 50 to 55 min | 50 to 55 min |
| Speed | 3000 to 4500 RPM | 3000 to 5200 RPM |
| Weight without battery | 1.95 kg, 4.3 lb | 1.75 kg, 3.8 lb |
The short version: the HLR21 covers big panels faster with its longer throw and larger pad. The HLR15 trades coverage for control on tighter panels and curves. If you detail full vehicles regularly, the 21 is the workhorse.
|
The Basic Kit Rupes iBrid HLR21 Basic Kit $760 · tool, 8 pads, 2 compounds, 2 batteries, dual charger · ships from Norwood, NJ |
Questions we get asked
Is it cordless only?
No, and this is the reason to pick it over a pure battery tool. iBrid means both: run it on the battery when you want freedom, plug it in when you are settled into a long correction. You are never stuck watching a charge bar to finish a hood.
How long does a battery actually last?
30 to 40 minutes of work per battery, with a 50 to 55 minute recharge. The kit ships with two batteries and a dual charger, so the battery on the bench is ready before the one on the tool runs down. In practice you just keep working.
Do I need to buy pads or compound to start?
No. The Basic Kit includes eight pads across foam and wool in two cut levels, plus coarse and fine compounds. That is a working correction setup out of the box.
Should I get the HLR21 or the HLR15?
Pick by the panels you polish most. Full hoods, roofs, and doors favor the HLR21's 6 inch pad and 21mm throw. Bumpers, pillars, and tight European bodywork favor the smaller, more nimble HLR15. Plenty of shops end up with both, but if it is your one machine for whole cars, we point you at the 21.
Is it heavy for overhead or vertical panels?
At 4.3 pounds before the battery it is one of the lighter ways to put a 21mm orbit on a panel. On doors and bumpers, where you are holding the machine against gravity, the missing cord is worth as much as the missing weight.
Where to get it
We sell the complete kit for $760, shipped from our shop in Norwood, New Jersey: Rupes iBrid HLR21 Basic Kit.
We are a Rupes dealer and we polish with these machines in our own bays. If you are deciding between the HLR21, the HLR15, or a corded Mark V, email us or call the shop and we will talk through what you work on. The person answering has run all of them.
Phil