The Chicago Pneumatic CP 4134 is the heavy end of the Chicago Pneumatic chipping hammer catalog: a 20 to 21 lb, 1-1/8 in. bore tool offered with a 3 in. stroke at 1,850 BPM or a 4 in. stroke at 1,500 BPM. The 4-bolt D-handle frame is built for high-impact production work heavy chipping, scaling, weld dressing and concrete demolition.
Pick the 3 in. stroke where rate matters and the 4 in. where each blow has to do more work; both versions take .580 in. hex or .680 in. round steel. An in-line air lubricator on the whip keeps the 3031 CFM air charge oiled through long shifts. Denver stock includes chipping hammer chisels in both shanks, and the lighter frames live in the broader chipping hammer lineup.
- Stroke options: 3 in. at 1,850 BPM or 4 in. at 1,500 BPM
- 1-1/8 in. bore drawing 3031 CFM at 90 PSI
- Chuck options: .580 in. hex or .680 in. round
- 2021 lb tool weight with 1920 in. overall length by stroke
- 4-bolt D-handle frame for high-impact production duty
- Applications: heavy chipping, scaling, weld dressing and concrete demolition
- Stocked by Crowder Supply in Denver with free UPS Ground shipping
CP 4134 FAQ
3 in. or 4 in. stroke which CP 4134 should I pick?
The 3 in. stroke runs 1,850 BPM for faster, lighter blows suited to scaling and weld dressing; the 4 in. stroke trades rate for per-blow energy at 1,500 BPM, the better choice for heavy chipping and concrete demolition. The chipping hammer buyer’s guide covers the trade-off in detail.
What chisels fit the CP 4134?
Both stroke versions are offered with a .580 in. hex or .680 in. round chuck, so they run standard chipping hammer chisels, points and specialty steel in the matching shank.
How much air does it use?
30 to 31 CFM at 90 psi depending on stroke well within reach of a small contractor compressor, with an in-line lubricator on the whip recommended to keep the motor oiled.
