Product description：
(S250 jackleg Drill) has been the preferred choice of miners who demand high performance, superior control and lasting reliability. the S250 jackleg allows operators to drill in confined spaces with challenging drilling directions while providing high drilling speeds and strong torque even at low air pressures. Push leg controls are integrated into the rear end of the rig to maximize safety and comfort. jackleg has a large contact area between the main cylinder components to reduce impact pressure and increase product life.
Function:
High penetration rate and strong torque even at low air pressure
Minimum downtime and low maintenance cost
Ergonomic controls integrated into drill backhead
Pusher leg controls with push button jackleg retraction
Motorcycle control feed
Available in various configurations – sinker, stopper, and jackleg
Market leader in North & South America
Parts interchangeable with SHENLI S250 jackleg drill
Features：
High Durability Long Life
Alloy steel forged parts provide maximum durability.
Removable bushing to protect wear of front head.
Ergonomic Series Available
Anti-vibration handle and noise reduction muffler are available for workers healthcare.
Other Features
Forged latch retainer for quick chisel change.
Multi position throttle for smooth start-up in drilling.
Technical parameters：
| Weight | 33.5 kg |
| Air consumption @6 Bar | 83 l/s |
| Drill Steel Chuck Hex | 22×108 mm |
| Piston diameter | 79.4 mm |
| Stroke length | 67.7 mm |
| Air Hose Connection | 25 mm |
| Water Connection | 13 mm |
| Impact rate (BPM) | 2300 |
