CD856A Rotary Drilling Rig

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CD856A

CD856A rotary drilling rig has been widely applied to construction engineering industry including highway, high-speed rail, subways and high-rise buildings, as well as large factories of steel and electricity.

As the representative model of small torque rotary drilling rig, this versatile hydraulic drilling machine has been exported to South Asia, Southeast Asia, West Asia and Eastern Europe.

Advantage
1. We utilize universal joint to maintain the connection between drill rod and connecting arm, whereby the drill rod is allowed for ±3° side raking, as well as forwards and backwards adjustments. Moreover, the verticality of drill rod is also ensured even in rugged terrains.

2. Hydraulic luffing cylinder and connecting arm form a triangle structure, thus promoting stability and performance.

3. Our rotary drilling rig is highly distinguished by outstanding energy efficiency. Based on same drilling diameter and depth, other deep foundation machines at same price level consume 3.3 to 3.8l/m, while our product only needs 1.6 to 1.85l/m!

Specification

Drilling diameter		mm	600 to 1500
Max. drilling depth		m	56
Overall dimension	Drilling position	mm	16500 × 3200 × 6720
Overall dimension	Transport position	mm	13550 × 3200× 3200
Overall weight		kg	38000
Engine	Model		Cummins B5.9-C
	Rated power	kW/rpm	112
	Design		Turbocharged direct injection
Drill head	Max. torque	kN.m	80
Drill head	Speed	r/min	1 to 22
Pull-down cylinder	Max. push force	kN	150
	Max. pull force	kN	100
	Max. stroke	m	2
Main winch	Max. pull force	kN	120
	Max. pull speed	m/min	70
	Diameter of steel wire rope	mm	24
Auxiliary winch	Max. pull force	kN	60
	Max. pull speed	m/min	50
	Diameter of steel wire rope	mm	18
Mast rake	Raking angle	°	±3 (side raking)
Mast rake	Raking angle	°	Forwards: 90, backwards: 6
Base carrier	Max. travel speed	km/h	3
	Max. grade ability		40%
	Min. ground clearance	mm	430
	Track shoe width	mm	800