Changsha Chaojingang Machinery Manufacturing Co., Ltd.
                                                                                                           
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9 Years
Since 2017
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API 4 1/2" Reg Connection Thread 8inch DTH Hammer for High Air Pressure Rock Drilling -SD8 M80 Ql80 DHD380 Cop84

Price Negotiable
Price: Negotiable
MOQ: 1
Delivery Time: Negotiable
Brand: Super Diamond
Product Description

8inch High Air Pressure DTH Hammer With Foot Valve compatible with bit shank QL80 / COP84 / SD8 / M80 / DHD380 / CD85

Advantages:
1. Valve air distribution. More reliable.
2. Simple design of the piston, long life.
3. More efficient energy transfer, faster drilling speed, low air consumption and low oil consumption.
4. Fewer internal parts, simple structure, longer life,less failure and easier to maintain because all the parts are heat treated.
5. Easy to disassemble because the top sub, the drive chuck and the external cylinder are connected by multi-sted thread. 

The advantages of hammers
without foot valve against with foot valve:
1. No more worries on the foot valve breakage or distortion or expansion due to the abrasion or high tempreture.
2. Higher impact rate, lower energy consumption, around 15-30% higher drill speed than the one with foot valve
3. Remain simple design, and reliable parts, long life, easy and cheap maintenance.
4. Lower air and oil consumption, oil consumption can be around 10% lower than the one with foot valve.
5. Strongly recommond.


Technical Data:

Hammers
Bit Shank Connection Thread Suitable bit Working pressure Air 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
0.7Mpa 4.5m3/min
1.0Mpa 4m3/min
1.4Mpa 5m3/min
3" hammers DHD3.5
COP32/COP34
M30
API 2 3/8"Reg ¢90-¢110mm 1.0-1.5Mpa 1.0Mpa 4.5m3/min
1.5Mpa 9m3/min
4" hammers DHD340
COP44
QL40
SD4
M40
API 2 3/8"Reg ¢105-¢130mm 1.0-2.5Mpa 1.0Mpa 6m3/min
1.8Mpa 10m3/min
2.4Mpa 15m3/min
5" hammers DHD350
COP54
QL50
SD5
M50
API 2 3/8"Reg/API 3 1/2"Reg ¢130-¢156mm 1.0-2.5Mpa 1.0Mpa 9m3/min
1.8Mpa 15m3/min
2.4Mpa 23m3/min
6" hammers DHD360
COP64
QL60
SD6
M60
API 3 1/2"Reg ¢152-¢203mm 1.0-2.5Mpa 1.0Mpa 10m3/min
1.8Mpa 20m3/min
2.4Mpa 28.5m3/min
8" hammers DHD380
COP84
QL80
SD8
API 4 1/2"Reg ¢200-¢279mm 1.0-2.5Mpa 1.0Mpa 15m3/min
1.8Mpa 26m3/min
2.4Mpa 34m3/min
10" hammers SD10
NUMA100
API 6 5/8"Reg ¢254-¢330mm 1.2-3.0Mpa 1.0Mpa 22m3/min
1.8Mpa 40m3/min
2.4Mpa 55m3/min
12" hammers DHD1120
SD12
NUMA120
NUMA125
API 6 5/8"Reg ¢305-¢381mm 1.2-3.0Mpa 1.0Mpa 30m3/min
1.8Mpa 56m3/min
2.4Mpa

78m3/min


Our Production Corner 1:
8inch DTH Hammer with Foot Valve High Air Pressure for Rock Drilling -SD8, M80, Ql80, DHD380, Cop84

Production Cornor 2:
8inch DTH Hammer with Foot Valve High Air Pressure for Rock Drilling -SD8, M80, Ql80, DHD380, Cop84


Detailed Technical Parameters:



Package:
Carton box with foam, then into the ply-wooden cases and or pallet for protecting the products and avoid the damagement during transportation.
Customized package acceptable.
8inch DTH Hammer with Foot Valve High Air Pressure for Rock Drilling -SD8, M80, Ql80, DHD380, Cop84




Production Lead-time:
Generally need 15-30 days.


Transportation:
By air, By Express or By sea according to your requests.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Changsha Chaojingang Machinery Manufacturing Co., Ltd.
Location No. 8, Fengyu North Road, Yongan Town, Liuyang, Changsha
Contact Person Jacky ( Sales Manager)

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