Hunan New Diamond Construction Machinery Co., Ltd.
|Place of Origin:||Hunan, China (Mainland)|
|Brand Name:||New Diamond|
|Model Number:||NQL series|
|Minimum Order Quantity:||Negotiable|
|Packaging Details:||Carton packaging and wooden box packing|
|Delivery Time:||5-8 work days|
|Payment Terms:||L/C, T/T, Western Union|
|Supply Ability:||According to order quantity|
|Material:||Alloy Steel||Application:||MARBLE QUARRY OR WELL DRILLING|
rock mining tools,
oil drilling tools,
Well Drilling DTH Hammer
When percussion or hammer drilling the percussion mechanism is called a DTH or down the hole hammer. This drilling tool is located directly above the down hole hammer bit. The driller transfers weight to the bit through the drill pipe as well as provides some rotation. Through the use of a compressor, the pressurized air is forced to the down hole hammer. As the drilled hole gets deeper the driller adds more drill pipe to the string. The piston strikes the impact zone of the hammer bit; hammers are always used as part of a casing advancement system and can be used in reverse circulation applications. DTH hammers are common when drilling blast holes and water wells.
Suitable choice of raw material, advanced processing technology and perfect quality warranty.
With hardened treatment, drilling life can be extended and then cost can be reduced.
Size range 1-2’’,3 ’’, 4’’, 5’’, 6’’, 8’’, 10’’, 12’’ etc.
SD4, SD5, SD6, SD8,SD10,SD12;
It is mainly used in geological exploration, coal mine, water conservancy and hydropower, highway, railway, bridge, construction and so on.
NQL Series High Air Pressure DTH Hammers Without Foot Valve
|External Diameter||Ø99mm||Ø126 mm||Ø165mm||Ø180/Ø185mm||Ø203mm|
|Connection Thread||API2 3”/8REG||
|API3 1”/2REG||API4 1”/2REG||API4 1”/2REG|
|Impact Rate at 17 Bar||30HZ||28HZ||25HZ||22HZ||22HZ|
|Recommended Rotation Speed||20-30r/min||20-35r/min||20-30r/min||15-25r/min||15-25r/min|
1.Price commitment: in order to ensure the high reliability of products, raw material selection are using grapefruit brand products; under the same competitive conditions, and not to reduce product technical performance on the basis of sincerity at a favorable price to customers.
2.Quality commitment: product manufacturing and testing have quality records and inspection data; the performance of the product can withstand customer inspection.
3.Customer service: in order to create new diamond brand, enhance the visibility of enterprises,establish corporate image, we serve customers with the principle of "preferential prices, good service, reliable product quality" principle.
The appearance of the picture is different from that of the actual product, and the actual product is the standard.
|NQL Series High Air Pressure DTH Hammers Without Foot Valve|
|2, “O” Ring Of Top Sub||0.01||0.015||0.015||0.015||0.01|
|11,“O” Ring Of Stop Ring||0.005||0.01||0.01||0.01||0.01|
Contact Person: Rick.liao