Blast Hole Rigs

prd-blasthole

Our organization is involved in offering Blast Hole Rigs, which are widely used in construction and other engineering related industries. Manufactured in line with the set industry standards under the supervision of our technical team, the rigs ensure high performance. Blast Hole Rigs are perfect for carrying out all types of drilling operations by DTH method in mines, quarries, and construction projects.

BLAST HOLE – TECHNICAL SPECIFICATIONS
CAPACITY 4″ to 4½” Dia hole up to 40 mtr ( 130 ft ) depth by DTH method
Light weight yet rigid, value engineered construction ensuring easy portability and high drilling performance
Design for rotation winch & self propellant pneumatic piston type air motors to provide maintenance free efficient performance
Effectively braked wheels with adjustable front two stabilizers and hold the unit firmly
Centralised control panel with auto feed arrangement for easy operation
Provision for anchoring of mast and locking arrangement between mast and boom ensure perfect rigidity during drilling
Swivel of mast 25 degree either side and capable of drilling holes from 15 degree in word from vertical upto horizontal position
Rear wheels can be swiveled at 90 degree for toe hole drilling
HYDRAULIC SYSTEM Max. Operating pressure: 140 kg/cm2 (2000psi)
ROTARY HEAD Rotary head is powered by a hydraulic motorMax torque – 660 kg-mtrs (66,000 in-lbs)Max. Speed – 0 to 60 rpm
TECHNICAL DATA
AIR MOTORS 4 Cylinder PISTON MOTORS directly coupled to sturdy Gr Boxes
FEATURES ROTATION WINCH SELF PROPEL
B.H.P. 1250 pm @ 7kg/cm2 4.0 – 4.5 4.0 – 4.5 4.0 – 4.5
Gr Ratio 1:30 1:46.6 1:98.3
Gr Box WORM Spur Spur Spur cum WORM
Speed 0 – 50 RPM 15 m/ min max Pullup 0 to 1.5 km/ hr
Pull Down / Up Force 0.2200 / -2000 KF
Max Torque 115 kg – mtr(10,000 in lbs )  –
DIMENSION AND OTHER DETAILS
FEATURES DATA
RotationUnit Traverse 2.34 mtrs
Height Mast raised lowered 3.60 mtrs
0.90 mtrs
Mast lateral swivel + 25 degree
Width 1.8 mtrs
Min HT of Drilling 0.9 mtrs
Comp Air Req 7 to 10.5 Cum3

 
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