Down The Hole Hammer for Sale

• After-sales Service: Support
• Warranty: Support
• Certification: ISO 9001:2008
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: DTH hummer
• Surface Treatment: Polishing
• Manufacturing Process: Casting
• Material: Carbon Steel
• Model: DTH Drill Pipe
• Weight: 3.2~331kg
• Outer Diameter: 76-490mm
• Hole Ange: 108-135mm
• Transport Package: Wooden Case
• Specification: according the model
• Trademark: HW
• Origin: China
• HS Code: 8431431000
• Production Capacity: 1000PCS Per Year
• Package Size: 80.00cm * 60.00cm * 60.00cm
• Package Gross Weight: 3.200kg

Product Description

Product Description

DTH drill bits can be used in the following applications

* GW - geothermal bore holes and water wells.

* Construction industry - Piling, footings, soil nailing.

* RAB - rotary air blast - mineral exploration using a conventional DTH hammer.

* RC- mineral exploration and pit grade control (needs specialized reversed circulation hammers).

* Mining- drill and blast holes in open pit mining, where the drill operator will drill several holes, then fill with explosives and        detonate to lift rock allowing access to ore body.

* Oil and Gas - Deep well bore holes: air hammers can be used as long as cutting uplift and borehole stability are ensured.         For deeper wells, new DTH technologies including water hammer and mud hammer can be used to improve drilling rates in     hard rocks.

-Drop Center Bit
For high penetration rates in soft to medium hard and corrosive rock formations. Low to medium air pressures. Maximum hole deviation control.

-Concave Face
The all-round application bit face specifically for medium hard and homo generous 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.

-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.

-Flat Face Bit
This kind of face shape is suitable for hard to very hard and abrasive rock formations in applications with high air pressures. Good penetration rates an resistance to steel wash.

 

Product Parameters

 

Head Shape	Head Diameter/mm	Ahank Length /mm	Spline	Weight/kg
concave face	305	375	12	140.5
flat face	311	375	12	141
concave face	325	375	12	150
concave face	350	375	12	168
concave face	381	375	12	178
concave face	400	375	12	193.5
concave face	445	375	12	231.5
concave face	500	375	12	287

Carbide Thread Button Rock Drill Bit For Drilling Tools

Packaging & Shipping

 

 

 

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