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Without Foot Valve Type Drilling DTH Hammer For Qre Mining / Well Drilling

Without Foot Valve Type Drilling DTH Hammer For Qre Mining / Well Drilling

Brand Name:SOLLROC
Certification:SGS
Model Number:QL80,SD8,Mission80,DHD380
Minimum Order Quantity:1 piece
Delivery Time:18 working days
Payment Terms:T/T,
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Location: Changsha Hunan China
Address: No55. Jiucaiyuan road, Furong District, Changsha, Hunan,China
Supplier`s last login times: within 21 hours
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Product Details Company Profile
Product Details

8'' QL80A DTH Hammer without Foot Valve Type for Qre Mining or Well Drilling

Product Advantages:
1.Avoid the problem happens on foot valve. Fracture,expansion and contraction
2.Lower air comsumption and higher impact frequency. 15-30% higher drilling efficiency than the bit with foot valve.
3.Simpler structure and less spare parts, makes easier & cheaper maintenance.
4.Heat-hardened spare parts,makes longer serving life and less problem.
5.Thread connection for top sub and drive chuck,makes easier disassembly


Product description
SOLLROC DTH hammers is designed around proven technology to perform at the top end of the performance scale compared to other tools on the market. These tools are excellent for all types of drilling applications including residential geothermal, production quarry drilling, seismic drilling and small construction drilling.

DTH Hammer specification:
Model: QL80A

QL80A
Length(less bit)1330mm
Weight (less bit)17100kg
External diameter185mm
Bits shankQL80A
Bits diameter195-254mm
Connection threadAPI 4 1/2" Reg
Air pressure1.0-2.5Mpa


Face shape Features
Drop Center
For high penetration rates in soft to medium hard and fissured rock formations. Low to medium air pressures. Maximum hole deviation control.
Concave Face
The all-round application bit face special for medium hard and homogenerous rock formations. Good hole deviation control and good flushing capacity.
Convex Face
For high penetration rates in soft to medium-hard with low to medium air pressures. It is the most resistance to steel wash, and may reduce the load and wear on the gauge buttons, but poor hole deviation control.
Flat Face
This kind of face shape is suitable for very hard and abrasive rock formations in applications with high air pressures. Good penetration rates an resistance to steel wash.
Double Gauge Face
This kind of face shape is suitable for fast penetration rates in medium to hard rock formations. Designed for high air pressures and good resistance to steel wash step gauge bit.

Product application
At present, DTH drilling tool is widely used in underground mining, quarries, hydraulic and Hydro-Power Engineering, water well drilling, Mineral exploration, anchoring hole drilling, geothermal engineering, Subway excavation, another civil engineering.

DTH is one of the most efficient ways of drilling rock, using a rapid hammer action to break the rock into sizeable chips which are then evacuated from the bore hole by the air exhausted from the DTH Hammer. The technique provides fast drilling of accurately aligned, straight and clean holes in most ground conditions.

Company informaiton
At sollroc, customer satisfaction is our top priority. Our sales team takes a proactive approach in meeting customers’ needs. We take the time to get to know you and learn about your operations so we can better assist you. We strive to meet customers’ needs by supplying the tools and equipment you need when you need them, providing product support, and following through with excellent customer service every step of the way.

China Without Foot Valve Type Drilling DTH Hammer For Qre Mining / Well Drilling supplier

Without Foot Valve Type Drilling DTH Hammer For Qre Mining / Well Drilling

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