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TH28 Shank Down Hole Hammer Drill Bits High Strength Alloy Steel Material

TH28 Shank Down Hole Hammer Drill Bits High Strength Alloy Steel Material

TH28 Shank Down Hole Hammer Drill Bits High Strength Alloy Steel Material

Product Details:

Place of Origin: Changsha,Hunan,China
Brand Name: Teamwhole
Certification: ISO9001:2008
Model Number: TH28 Shank DTH bit

Payment & Shipping Terms:

Minimum Order Quantity: 1
Price: Negotiation
Packaging Details: dth bits are packed by Woodens outer side, and Cartons inner side.
Delivery Time: Shipped in 25 days after payment
Supply Ability: 5000pcs/month
Detailed Product Description
Model: TH28 Shank DTH Bit Material: Alloy Steel
Processing Type: Forging Carbides Shape: Spherical, Ballistic, Parabolic And Conical
DTH BIT Colo: Gold,Other Color Are Available Matched Hammer: 28Inch TH28 DTH Hammer
Formation:: Hard Rock, Middle Hard Rock, Soft Rock Bit Hole Range: 800-1200mm

Down Hole Drilling Bit TH28 Shank DTH bit Match to 28inch DTH hammer For Water Well Foundation drilling Use

 

The drill bits offered by Tianhe Drilling are manufactured to the most stringent standards, using high quality materials to provide you with a reliable, high performance cutting edge for your drilling equipment.

 

1. General Size introduction

Bit Shank Bit Dia.(mm) NO.Air Gauge Front Weight(Kg) Part No.
Holes Buttons Buttons
TH28 800 6 54*Φ20 66*Φ20+90*Φ18 1363 TH28-800
900 6 60*Φ20 66*Φ20+105*Φ18 1536 TH28-900
1000 6 68*Φ20 74*Φ20+123*Φ18 1804 TH28-1000
1100 6 76*Φ22 84*Φ20+140*Φ18 2117 TH28-1100
1200 6 86*Φ22 96*Φ20+159*Φ18 2300 TH28-1200

2. Bit Face Shape Selection:

1. Drop Center Bit

----For high penetration rates in soft to medium hard and fissured rock formations. 

2. Concave Face

----The all-around application bit face specifically for medium hard and homogeneous rock formations.    Good hole deviation control and good flushing capacity.

3. 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 theload and wear on the gauge buttons, but poor hole deviation control.

4. 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.

 

 

3. Carbide Button Shape Selection:

1. Semi-Ballistic Buttons

2. Ballistic Button

3. Spherical Button

4. Two-step Button

 

4. Photos

TH28 Shank Down Hole Hammer Drill Bits High Strength Alloy Steel Material

 

Contact Details
Changsha Tianhe Drilling Tools and Machinery Co.,Ltd.

Contact Person: Ms.chen

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