Inwell Type Rig light Weight INW-101


Inwell type light weight Rig capable of drilling 90 – 115 mm dia holes to a depth of 30 meters used for drilling & blasting purposes in open cast mines consisting of chain feed mast to handle 73/76mm dia OD x 1.22 (4ft.) long drill pipe fitted with 4.5 H.P Rotation Unit and 4.5 H.P Feed unit mounted on Triangular bottom frame with three adjusting screws, controls, Hoses and Air line Lubricator.

Special Features :

  • Stable Drilling capabilities
  • Structural designed for extra rigidity
  • Anchoring arrangement ensures perfect stability during drilling
  • Centralized sensitive controls with auto feed arrangement ensure easy operation and reduction of operation fatigue
  • Rotation and winch units modified to provide additional power for faster drilling and rapid withdrawals, longer tool life etc…
  • Rigid Output Shaft (Rotation Unit) with extra bearing support and thicker thread profile
  • Specially designed fluid seals for Output Shaft Rotation unit to prevent air leakages


Mode of Drilling Down the Hole Air Hammer
Hole Diameter 90mm ~ 115mm (3 ½” ~ 4½”)
Max. Drilling Depth (Vertical) 30 Mtrs. (100 ft)
Drill Pipe Diameter 60mm / 76mm (2” / 3”)
Drill Pipe Length 1.5mtrs (5ft)
Rotary Head
4 Cylinder Piston type Air Motor with spur type Reduction Gearbox
BHP 4.5
RPM 0~50
Max. Torque 1125Nm (10,000
Feed Unit
4 Cylinder Piston type Air Motor with spur cum worm drive Gearbox
BHP 4.5
Type of Feed Chain feed
Pull Down Force 0~2200 kgf
Pull Up Force 0~2200 kgf
Pull Up & Pull Down Speed 0~ 15 mtrs./min