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Mission50 Mission60 DTH Hammer

Mission50 Mission60 DTH Hammer

Down the hole hammers are rock drilling equipment which takes compressed air as power source to partially transfer impact power into drilling holes. An air distributing device in a top hammer controls a piston to move back and forth. An impact device arranged in the front of the top hammer transfers the impact powderto a down-the-hole bit to crush rocks.

Mission50 Mission60 DTH Hammer

 

1.Compatible with the bits of COP/DHD/QL/SD series. 

2.It is not necessary with nylon foot valve, which avoids the fault caused by its breakage and damage or due to temperature changes and which improves productivity.

3.Adopt valveless air distribution.Simple structure makes it easy for disassembly.

4.With reasonable design and compatibility between components,it ensures long lifetime of DTH.

5.Adopt multiple thread to connect sub and drive chuck,which is easy fo disassembly.

6.Adop fine alloy steel and apply hardening treatment on the spare parts,which prolongs DTH hammer lifetime and lifts reliability.


 

 The working video: how to fix Mission hammers?

M30 M40 M50 M60 M80 DTH hammer specifications:


M30

M40

M50

M60

M80

Length(less bit)

900mm

1005mm

1110mm

1161mm

1338mm

Weight (less bit)

24.0kg

40.0kg

68.5kg

90.0kg

176.0kg

External diameter

82mm

99mm

125mm

146mm

180mm

Bits shank

M30

M40

M50

M60

M80

Bits diameter

90-110mm
 
 

110-135mm

135-155mm

155-203mm

195-254mm

Connection thread

API 2 3/8" Reg

API 2 3/8" Reg

API 2 3/8" Reg

API 3 1/2" Reg

API 3 1/2" Reg

API 4 1/2" Reg

Air pressure

1.0-1.5Mpa

1.0-2.5Mpa

1.0-2.5Mpa

1.0-2.5Mpa

1.0-2.5Mpa

 

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