Product Details

borehole drilling rigs rotary percussion drilling system

Product Description

Feature of borehole drilling rigs rotary percussion drilling system

1) It is economical and efficient, mainly used in media and small-diameter pile civil construction;

2) Diesel engine has load induction and output power auto-control; the fuel consumption drops 5-10%;

3) 5-level anti-vibration technology absorbs drilling vibrational frequency all-directionally to guarantee high stability;

4) The special lubricating system makes sure that it can work under high-temperature environment;

5) The removable and symmetrical structure design doubles the service life of rotary drive key;

6) Crowd cylinder has two operation modes-normal lifting and fast lifting to improve push efficiency;

7) Optional chassis incline alarm enhances construction safety;

8) Mast verticality auto-adjusting technology promises the pile accuracy.

Paraments of borehole drilling rigs rotary percussion drilling system

Main performances	Unit	Parameters
Overall height(chassis/SANY chassis)	mm	22,660/22,700
Operating weight(chassis/SANY chassis)	t	80/82
Max. pile diameter	mm	2,200
Max. pile depth(friction Kelly/inter-locking Kelly)	m	84/58
Rotary Drive
Max. output torque	kN.m	280
Speed of rotation	rpm	9~24
Crowd system
Crowd force	kN	220
Line pull	kN	220
Stroke	mm	7,500
Main winch
Line pull(1st layer)	kN	290
Rope diameter	mm	32
Max. line speed	m/min	48
Auxiliary winch
Line pull(1st layer)	kN	110
Rope diameter	mm	20
Max. line speed	m/min	70
Mast inclination
Forward	°	3
Lateral	°	±3.5