Chicago Pneumatic CP870 Air Random Orbital Sander 6 Inch
- Maximum Rotational Speed: 10000 rpm
- Amperage Capacity: 0.5 amps
- Power Source: Pneumatic
- Shape: Disc
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
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ASIN: B0002MID2IModel: CP870Category: Sanders
Overview
This Chicago CP870 runs on compressed air rather than a cord or battery, spinning up to 10000 RPM. It weighs 4.3 pounds with a 7.6 inch body, built for shop use where an air compressor is already on hand.
Pneumatic tools like this trade cord and battery dependence for a compressor line, which usually means a lighter head and less heat buildup during sustained runs than electric equivalents.
- Compressed air powered
- 10000 RPM top speed
- 7.6 inch body length
- 4.3 pound weight
Who it's for
Fits a garage or shop that already has compressed air set up for sanding or finishing work. Not a fit if you only have wall power or battery tools on hand.
Pros and cons
- 10000 RPM top speed
- Compact 7.6 inch body
- Requires a compressed air source to operate
- No recent purchases recorded
Performance notes
Running at 10000 RPM on compressed air, this sander is built for continuous material removal without the motor heat buildup that slows down corded electric sanders during long sessions.
Specifications
| Brand | Chicago Pneumatic |
|---|---|
| Model | CP870 |
| Dimensions & fit | |
| Item Weight | 4.3 poundshigher than 67% of 85 sanders |
| Item Dimensions L X W X H | 7.6"L |
| Capacity & performance | |
| Maximum Rotational Speed | 10000 rpmlower than 52% of 111 sanders |
| Amperage Capacity | 0.5 ampslower than 100% of 106 sanders |
| Power & efficiency | |
| Power Source | Pneumatic |
| Battery Description | Air Powered |
| Voltage | 2 voltslower than 100% of 113 sanders |
| Included components | |
| Unit Count | 1 |
| Included Components | Air Random / Rotary Sander |
| Warranty & support | |
| Manufacturer Warranty Description | 1-year limited warranty |
| Other details | |
| Shape | Disc |
| Grit Type | Fine |
| Item Type Name | Rotary Sander |
Closest rivals on specs
Ingersoll Rand 311A Dual-Action Angle Air Sander 6 Inch- Maximum Rotational Speed 10000 vs 12000 rpm (-17%)
WEN 6313 Third Sheet Sander- Amperage Capacity 0.5 vs 1.2 amps (-58%)
- Maximum Rotational Speed 10000 vs 12000 rpm (-17%)
GALAX PRO 20V Cordless Detail Sander- Voltage 2 vs 20 volts (-90%)
- Amperage Capacity 0.5 vs 1.3 amps (-62%)
- Maximum Rotational Speed 10000 vs 12000 rpm (-17%)
Frequently asked questions
What powers the Chicago CP870 sander?
Compressed air. It needs a shop compressor to run.
How fast does the Chicago CP870 spin?
Up to 10000 RPM.
How much does the Chicago CP870 weigh?
4.3 pounds, with a 7.6 inch body length.