MJ250 Pusher leg Mounted Rock Drill

Mindrill continues to lead the industry in the creation of premium rock drills designed to meet the most challenging conditions and difficult applications. Our MJ250 Pneumatic Rock Drill offers a variety of features that set it apart from other rock drill providers, making it the most advanced hand held rock drill on the market today.

MJ250

Ordering Part No.

Part No. Chuck Size Air Connection
5111 105 000 2225 22 X108 mm 7/8 x 4¼

Technical Specifications:

Weight : 34.3 kg
Air consumption @6 Bar : 83 l/s
Piston diameter : 79.4 mm
Stroke length : 67.7 mm
Air Hose Connection : 25 mm
Water Connection : 13 mm
Torque : 29-35kgf-m at 620kPa
Impact rate : 2300 BPM
Rotation Speed : 225 RPM
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Key Features

  • Ergonomic controls for operator, with push button jackleg retraction and motorcycle control feed
  • High penetration rate
  • Convenient operating controls
  • Long life
  • Comes with a locking retainer
  • Market leader in North & South American continents
  • Parts interchangeable with Boart Longyear S250 sinker drill

Our Certifications



FAQ’s

Yes. The MJ250 is designed as an equivalent to the Boart Longyear S250 sinker drill, and its parts are interchangeable with that model.
Spec | Metric | Imperial | Weight | 34.3 kg | 75.6 lb | Air consumption @6 Bar | 83 l/s | 180 cfm | Piston diameter | 79.4 mm | 3.125 in | Stroke length | 67.7 mm | 2.625 in | Air hose connection | 25 mm | 1 in | Water connection | 13 mm | 1/2 in | Torque | 29–35 kgf-m @ 620 kPa | 210–250 lbf-ft @ 90 psi | Impact rate | 2300 BPM | 2300 BPM | Rotation speed | 225 RPM | 225 RPM |
- Ergonomic operator controls, including push-button jackleg retraction and motorcycle-style control feed - High penetration rate - Convenient, easy-to-use operating controls - Long service life - Comes with a locking retainer - Recognized as a market leader across North and South America
Mindrill's manufacturing is backed by CE certification along with ISO 9001:2015, ISO 45001:2015, and ISO 14001:2015 certifications.
As a pusher-leg jackleg drill, it's built for underground hard-rock drilling — blast-hole and stope drilling in narrow vein operations, plus general underground mining tasks.
Yes, related Mindrill models shown on the page include the S25, S215, MJ83, MJ83FX, MS250, and MST250, along with accessories like the A755 pusher leg and M610/M630 components.
The page offers a downloadable flyer and a "Get Quote" enquiry form where you can submit your name, contact details, and country to request pricing information.
You can reach Mindrill via email at salessupport@mindrill.com, by phone/WhatsApp at +91 98305 94274, or through the enquiry form on the product page.

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