Product Details

Portable Full Hydraulic Tunnel Drilling Rig

Main Application

This tunnel drilling rig is a multi-function drilling rig developed aiming at grouting drilling for hydro-power station. It also can be used for timbering drilling, penetration-proof, blasting and crag/side slope geological disaster controlling hole drilling. This tunnel drilling rig is mainly suitable for hard rock drilling with diamond bit/PDC bit as well as DTH drilling.

Main Feature

1. Reasonable technical parameter assures this tunnel drilling rig can have more efficient drilling performance.
2. Fully hydraulic drive, top-drive head rotation, feeding and hoisting are all done by ration pump and ration motor which composite independent open hydraulic system, which is simple, advance, easy to use and maintain.
3. The main hydraulic components are imported from world famous hydraulic manufacturers, two-step filtering, improving the tunnel drilling rig's hydraulic system reliability.
4. Newly-designed overall structure, three level rotating speed, different rotation speeds can be used by equip different top-drive head hydraulic motor accordingly to suits different drilling demands.(detailed information see table 1)
5. Light weight, easy to be moved, assembled, maintained. Especially suitable for drilling works in tunnel and on the frame.

Main Specification

Drilling method			Diamond drill bit, PDC bit and DTH drilling
Drilling capacity			30m (hole diameter: 75mm); 20m (hole diameter: 91mm)
Drill rod			Φ42 * 1000/Φ50 * 1000
Top-drive head			Stroke 1200mm
Max. Push/pull force			14kN
Feed and hoist speed			0-0.3m/s
Hydraulic system			Triple gear pump, ration motor
Power unit			Electric motor Y180M-4 (speed: 1470 r/m; power: 18kw)
Mast length			2100mm
Detachment weight			Mast and top-drive head 135kg; control panel 50kg; wheeled power station 280kg
Top-drive head revolving speed and torque table 1
Motor capacity	80ml/m	100ml/m (standard)		130ml/m	160ml/m	195ml/m	245ml/m	305ml/m
High-speed (r/m)	700-779	560-623		450-480	365-390	295-320	235-255	180-204
Torque Nm	150	195		250	300	375	470	575
Middle speed (r/m)	540-605	420-470		350-364	350-364	218-243	175-195	135-155
Torque Nm	155	195		250	305	375	480	580
Low speed (r/m)	152-187	104-150		92-115	75-93	57-77	45-60	35-50
Torque Nm	215	270		350	430	510	660	805

Contact Information

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