Payment & Shipping Terms:
|Name:||DTH Drill Hammer||Processing Type:||Forging|
|Size:||2-12 Inch||Application:||DTH Hole Drilling|
|Weight:||20-200 Kg||Air Pressure:||High Pressure|
dth drilling products,
dth hammer drilling
Water Well Mining DTH Hammer DTH Drilling Tools 2 Inch - 12 Inch Size
A down-the-hole hammer (DTH hammer) is a tool that can be attached to the end of a drill string and inserted into a bore. It's a small jack hammer used to break hard rock into small particles that can be flushed away by the DTH hammer's air exhaust.
A down-the-hole hammer provides a solution to the problem of removing hard rock barriers encountered in a bore. The DTH hammer resembles a small jack hammer. It screws onto the end of a drill string like a section of drill pipe. Like the jack hammers used above ground, it's air-powered with a high cyclic rate; unlike jack hammers above ground, it combines its fast-action hammer with a rotary, drilling action. This combined action rotates its chisel-like tip as it drives into the rock, breaking it into chips and dust. Because the DTH hammer is pneumatically powered, it has an air exhaust, which blows the chips and dust from the bore.
1. Valveless air distribution. More reliable.
2. Simple design of the piston. Long life.
3. More efficient energy transfer, fact drilling speed, lower air consumption and lower oil consumption.
4. Fewer internal parts, simple structure, long 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-step thread.
DTH hammers specifications:
|Hammers||Bit Shank||Connection Thread||Suitable bit||Working pressure||Air consumption|
|API 2 3/8"Reg||￠90-￠110mm||1.0-1.5Mpa||1.0Mpa||4.5m3/min|
|API 2 3/8"Reg||￠110-￠135mm||1.0-2.5Mpa||1.0Mpa||6m3/min|
|API 2 3/8"Reg/API 3 1/2"Reg||￠135-￠155mm||1.0-2.5Mpa||1.0Mpa||9m3/min|
|API 3 1/2"Reg||￠155-￠190mm||1.0-2.5Mpa||1.0Mpa||10m3/min|
|API 4 1/2"Reg||￠195-￠254mm||1.0-2.5Mpa||1.0Mpa||15m3/min|
|API 6 5/8"Reg||￠254-￠311mm||1.0-2.5Mpa||1.0Mpa||22m3/min|
|API 6 5/8"Reg||￠305-￠445mm||1.0-2.5Mpa||1.0Mpa||30m3/min|
Q1: What's your delivery time?
A: Commonly product need 20 days to produce, within 3 days if in stock.
Q2: What’s methods of payments are accepted?
A: We agree T/T ,L/C ,West Union ,One touch ,Money Gram ,Paypal.
Q3: What about the Shipments?
A: Bases on other quantity .We can send it to you by Express ,by Air ,by Sea ,and by Train.Or send the goods to your Chinese agent.
Q4: How to control the quality?
A: We should be checking & testing everyone button bit before shipment.
Contact Person: Sean Zhao