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Sullair Rock Drill MRD55 1 x 4-1/4"

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Sullair Rock Drill MRD55 1 x 4-1/4"

$1,959.00
The Sullair MRD-55 is an all-purpose, heavy-duty, rock drill for holes up to 20 feet deep in the hardest rock.

Details

Specifications

Weight56 lbs.
Length23 3/4"
Bore & Stroke2 5/8" x 2 11/16"
Impact Rate1650 blows/min.
Air Consumption95 cfm
Air Inlet Diameter3/4" NPT
Shipping Weight

60 lbs.

Dead Man Safety Handle -

The Sullair drills are designed so that the tool automatically stops operating when the operator releases the throttle lever.

One Control for Drilling and Blowing -

The single throttle lever controls all tool func tions from off, to blowing only, to progressive drilling speeds.

Variable Throttle Control -

Allows stepless speed control for maximum drilling production.

Continuous Hole Cleaning -

Direct Rotation of the Piston -

This feature reduces torque loss and eliminates wearing parts, such as the rifle bar assembly.

Less Maintenance -

The unique design of the Sullair drills eliminates many high wear parts. This means less loss of power due to wear, less downtime to replace worn parts and lower overall maintenance costs.

Minimal Lubrication Required -

Oil Reservoir -

A built-in oil reservoir assures direct lubrication to rotating parts. Use of standard 90-140 weight gear lubricant extends the life of critical parts.

One-Year Parts Warranty -

This Sullair warranty covers all drill parts against manufacturing defects. In addition, should a part wear out under normal working conditions, it is covered by Sullair’s exclusive one-year warranty.
With only two parts moving during operation, a non-corrosive distribution valve, less radial piston movement and high tech alloys, the Sullair drills do not require special rock drill oil. Normal oil carry-over from the compressor, combined with moisture in the air, will usually provide sufficient lubrication under normal operating conditions.Blowing air is directed through the drill rod at all drilling speeds to clear debris from the hole.