Description

ND640 High pressure DTH Hammer

ND640 High pressure DTH Hammer

A rotation drill rig, air compressor and the “DTH drill string” are the essential unit for DTH drilling while the “DTH drill string” is always made up of DTH drill rods, DTH hammer and DTH bits.
As one of key component, the DTH hammer acts as a role of converting the air pressure to the impact energy, simultaneously transferring impact energy and rotation force to DTH bits.

Technical Parameters
Length(Less bit)	Weight	Outer Diameter	Connection Thread	Bit Shank	Hole Range
2390mm	3795.5Kg	Φ640mm	320 Hexagonal	ND640	Φ720-Φ1000mm
Work Pressure		Recommanded Rotation Speed		Air Consumption
				1.8Mpa	2.4Mpa
1.5-3.5Mpa		15-30 r/min		92 m³/min	122 m³/min
Ref.	Parts	Weight
1	“O”Ring	0.05 Kg
2	“O”Ring	0.05 Kg
3	Top Sub	705.5 Kg
4	Adjuster Shim	15.4 Kg
5	“O”Ring	0.2 Kg
6	Check Valve	7.5 Kg
7	Spring	0.4 Kg
8	Rubber Buffer	3 Kg
9	Valve Seat	203.6 Kg
10	“O”Ring	0.2 Kg
11	Innre Cylinder	137.6 Kg
12	Piston	626.3 Kg
13	Piston Case	1797 Kg
14	Piston Retaining Ring	0.4 Kg
15	Retainer Ring	42.3 Kg
16	“O”Ring	0.2 Kg
17	Adjuster Shim	15.4 Kg
18	Drive Chunk	240.4 Kg

Service

• The technical support team may provide remote or on-site support to resolve issues encountered by users during use.
• Provide original spare parts to ensure timely replacement of worn or damaged parts to maintain the normal operation of DTH bits.
• Timely information reply throughout the day, the first time to solve your problems.

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For more information, please contact us:

Email: sale2@kingkongdrillsltd.com

Whatsapp/Phone:+8617320093173

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