China DTH Drilling Tools manufacturer
Changsha Sollroc Engineering Equipments Co., Ltd
FOCUS IN MANUFACTURING OF HIGH QUALITY DTH AND RC DRILLING TOOLS.
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8inch DTH Rock Drilling Hammers For Blasting Drilling Cop84 DHD380 SD8 Ql80

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Changsha Sollroc Engineering Equipments Co., Ltd

City: changsha

Province/State:hunan

Country/Region:china

Tel:86-731-85551632

Contact Person:
Ms.Ling Bo
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8inch DTH Rock Drilling Hammers For Blasting Drilling Cop84 DHD380 SD8 Ql80

Brand Name SOLLROC
Model Number 8''
Certification SGS
Place of Origin China
Minimum Order Quantity 1 piece
Price negotiable
Payment Terms T/T,
Supply Ability 10000 pieces/month
Delivery Time 18 working days
Packaging Details Cartons + ply wood case (no plastic)
Application Quarrying, construction
Usage geothermal drilling
Product name dth hammer
Rock formation Granite, limestone, quartz, etc
Advantage Best quality
Color Black or as request
Rock hardness Granite, limestone, quartz, etc
Use Well Drilling,Ore Mining,Coal Mining,Coal/Ore Mining,quarry
Size 8'' hammer
Air pressure High
Detailed Product Description

8inch DTH Rock Drilling Hammers for Blasting Drilling Cop84, DHD380, SD8, Ql80

 

Product Description:

In DTH drilling, the drill string rotates while the drilling hammer continuously strikes down into the rock. Inside the hammer, a piston powered by compressed air gives the drill bit its striking power. This combined with the rotational movement means the rock is crushed in a very efficient manner.

In very hard rock (and especially fractured hard rock), down-the-hole (DTH) drilling can be employed. In this case the hammer, applying repeated percussive pressure, is located just behind the drill bit inside the hole, unlike the open percussion drilling, where the hammer is on top of the drilling string.

 

Product Advantages:

1.In this design of the DTH hammer, the user can directly connect with the drill pipe without changing the diameter of the joint, thereby reducing the user's production costs.

2.The DTH hammer select the best raw materials and the most advanced processing technology, more stable performance and longer service life.

3.The internal structure of the DTH hammer is the simplest, most reliable, convenient to disassemble, less trouble, and easy to maintain. Since all components are heat treated, there are fewer failures and easier maintenance.

4.The DTH hammer with valveless air distribution is more reliable.

5.More efficient energy transfer, faster drilling, lower air consumption and lower fuel consumption.

6.Since the top connector is easy to remove, the drive chuck and external cylinder are connected by multiple threads.

7.Please note that the DTH hammer is designed to drill holes in various rock requirements. It is worth noting that when the piston of the DTH hammer is in contact with the drill, it will not lose the transmitted energy as the hammer deepens.

 

DTH Hammer Specification:

SD8 hammer specification

 DHD380
COP84
SD8QL80
Length(less bit)1492mm1463mm1465mm
Weight (less bit)188.0kg192.0kg182.00kg
External diameter180mm180mm185mm
Bits shankDHD380
COP84
SD8QL80
Bits diameter200-279mm
7 7/8" - 11"

200-279mm
7 7/8" - 11"
200-279mm
7 7/8" - 11"
Connection threadAPI 4 1/2" RegAPI 4 1/2" RegAPI 4 1/2" Reg
Air pressure1.0-2.5Mpa1.0-2.5Mpa1.0-2.5Mpa

 

Other size hammer specification


Hammers
Bit ShankConnection ThreadSuitable bitWorking pressureAir consumption
1-3" Middle-low pressure DTH hammers
BR1
BR2
BR3
RD40 box
RD50 box
API 2 3/8" Reg

¢64-¢76mm
¢70-¢90mm
¢90-¢110mm
0.7-1.75Mpa
0.7-1.75Mpa
0.7-1.75Mpa
0.7Mpa4.5m3/min
1.0Mpa4m3/min
1.4Mpa5m3/min
3" hammersDHD3.5
COP32/COP34
M30
API 2 3/8"Reg¢90-¢110mm1.0-1.5Mpa1.0Mpa4.5m3/min
1.5Mpa9m3/min
4" hammersDHD340
COP44
QL40
SD4
M40
API 2 3/8"Reg¢105-¢130mm1.0-2.5Mpa1.0Mpa6m3/min
1.8Mpa10m3/min
2.4Mpa15m3/min
5" hammersDHD350
COP54
QL50
SD5
M50
API 2 3/8"Reg/API 3 1/2"Reg¢130-¢156mm1.0-2.5Mpa1.0Mpa9m3/min
1.8Mpa15m3/min
2.4Mpa23m3/min
6" hammersDHD360
COP64
QL60
SD6
M60
API 3 1/2"Reg¢152-¢203mm1.0-2.5Mpa1.0Mpa10m3/min
1.8Mpa20m3/min
2.4Mpa28.5m3/min
8" hammersDHD380
COP84
QL80
SD8
API 4 1/2"Reg¢200-¢279mm1.0-2.5Mpa1.0Mpa15m3/min
1.8Mpa26m3/min
2.4Mpa34m3/min
10" hammersSD10
NUMA100
API 6 5/8"Reg¢254-¢330mm1.0-2.5Mpa1.0Mpa22m3/min
1.8Mpa40m3/min
2.4Mpa55m3/min
12" hammersDHD1120
SD12
NUMA120
NUMA125
API 6 5/8"Reg¢305-¢381mm1.0-2.5Mpa1.0Mpa30m3/min
1.8Mpa56m3/min
2.4Mpa78m3/min

 

Detailed Photos:

 

Application:

Product Tags: 8inch Rock Drilling Hammer   Blasting Rock Drilling Hammer   Cop84 DTH Drilling Hammer  
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