Rotary Drilling Equipment

Description
Rotary drilling equipment adopts new box-type mast and optimized boom structure to enhance the structural stiffness and fatigue strength significantly.

Features
1. Strong rock drilling ability: strong crowd force, rock drilling efficiency is higher than the rigs of the same type and ranks the first in the nation.
2. High construction efficiency: adopt drilling parameters matching technology and rock drilling adaptive technology; torque, rotation speed and crowd force can match automatically.
3. High stability: adopt optimized layout of whole structure and design.

Technical Parameters of Rotary Drilling Equipment

Main performances	Unit	Parameters
Overall (CAT chassis/SANY chassis)	mm	22,660/22,700
Operating weight(CAT 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 to 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

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