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Sullair MRD-50 Rock Drill

  • Description

  • Warranty Information

  • IronDirect Advantage

  • Product Reviews

Product Spec

Single-throttle lever controls all tool functions: automatic-off, blow only, and progressive drill speeds.

We eliminated many high wear parts. To you this means less loss of power due to wear, less downtime to replace worn parts, and lower overall maintenance costs.

With only two parts moving during operation, a non-corrosive automatic valve, less radial piston movement and high-tech alloys, our drills do not require special rock drill oil. Under normal operating conditions, oil carry-over from the compressor combined with moisture in the air will provide sufficient lubrication.


  • Weight 48 1/2 lbs.
  • Length 23 1/4"
  • Bore & Stroke 3" x 2 5/8"
  • Impact Rate 1800 blows/min.
  • Air Consumption 99 cfm (2.8 m3/min, 47 l/s)
  • Air Inlet Diameter 3/4" NPT
  • Shipping Weight 55 lbs.
  • Chuck Size 7/8" HX x 3 1/4", 7/8" HX x 4 1/4", 1" HX x 4 1/4"


  • Dead Man Safety Handle
  • One Control for Drilling and Blowing
  • Variable Throttle Control
  • Continuous Hole Cleaning
  • Direct Rotation of the Piston
  • Less Maintenance
  • Minimal Lubrication Required
  • Oil Reservoir

1 Year Limited Warranty

A Sullair Air Tool, if used in accordance with manufacturer's instructions is warranted against defects in materials and workmanship. M Series tool are also warranted against loss of performance due to wear. This warranty does n

IronDirect advantages are the programs, services, and technologies that set us apart and raise the bar for the industry. They provide the speed, value, data, and efficiency that drive the success of your projects and directly impact your bottom line.

Service Your Way

"Your Way" means you can determine how to best maintain your construction equipment, ensuring minimum downtime and maximum productivity. You have the option to perform warranty repairs at your own facilities and get reimbursed for labor and at full MSRP for parts, use a preferred local service provider, or select an IronDirect authorized service partner at one of our hundreds of service locations across the U.S., Canada, and Mexico.

id-advantage-icon2.pngHigh-Quality Equipment and Parts

IronDirect partners with select proven global manufacturers to produce equipment customized with major components from leading brands such as Cummins, Kawasaki, Grammer, ZF, Rexroth, and Dana – the same brands used by top American equipment manufacturers. All IronDirect equipment manufacturers must pass our rigorous on-site operations audit. And, every piece of equipment we sell is inspected and qualified by our experienced engineering and product testing team to confirm its quality and durability. You're able to capture unmatched value with the purchase and after-sale support of Tier-3-compliant machines that provide all the features you require.

id-advantage-icon3.pngTwo-Year Full Machine Warranty

All parts and labor charges are covered for the first two years / 4,000 working hours. Our online warranty portal allows you to easily activate your warranty, file claims, and receive quotes for maintenance work.

id-advantage-icon4.pngReimbursement for Self-Performed Warranty Work

Qualified customers performing their own warranty work are reimbursed for labor and at full MSRP for parts. Use your existing service team and assets to make money from your investment. Online direct reimbursement requests are quick and easy. Funds are deposited immediately into your account.

id-advantage-icon5.pngFull Service Support

Master technicians available 24/7 in real time via DirectAssist app; on-site and online training available.

id-advantage-icon6.pngDirectAssist App for iOS and Android Devices

Simplify and expedite servicing your IronDirect equipment with real-time, expert support wherever you are. DirectAssist allows you to directly access our Technical Service Specialists and receive remote assistance to help service your equipment; communicate one-on-one in real time with specialists via voice, video, and text chat; share photos, videos, and documents; and receive important updates through broadcast video communications and service announcements.

id-advantage-icon7.png48-Hour Parts Guarantee

For any machine-down situation caused by a failed part, we'll deliver a replacement part within 48 hours of your order, or the part and it's shipping is free.

id-advantage-icon9.pngFree 1,000 Hours of Parts

Every machine includes a free kit of maintenance parts for the first 1,000 hours, sent to you right when you need them.

id-advantage-icon10.pngDirecTrac Telematics System

Built into every IronDirect machine, our DirecTrac telematics system provides up-to-the-minute monitoring of location, movement, machine hours, fuel consumption, and more, empowering you to make data-driven decisions, expedite repairs, and maximize resale value.

id-advantage-icon11.pngQR Code Technology

Scan the QR code on any IronDirect machine to instantly access vital equipment data, including a machine birth certificate featuring all main component model and serial numbers, an original quality assurance report for your specific machine, key specifications, a comprehensive machine walk-around video, and an IronDirect business model overview video.

Image result for amsource capital Equipment Financing Through Amsource Capitol

Through our partnership with Amsource Capitol, we can provide comprehensive financing and leasing solutions that make owning or leasing IronDirect equipment affordable and simple. U.S. and Canadian customers can secure equipment financing with our working capital loans, specialized loans involving balloon or seasonal payments, and rental fleet finance programs. You can also lease our machines through working capital leases and leaseback programs. We also offer customized financing options for construction contractors and rental companies.

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