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Large Hole Piling Drilling Down Hole Hammer Drill Bits TH28-1000MM Diameter

Large Hole Piling Drilling Down Hole Hammer Drill Bits TH28-1000MM Diameter

Large Hole Piling Drilling Down Hole Hammer Drill Bits TH28-1000MM Diameter

Product Details:

Place of Origin: Changsha,Hunan,China
Brand Name: Teamwhole
Certification: ISO9001:2008
Model Number: TH28-1000MM

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
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Detailed Product Description
Model: TH28-1000MM Processing Type: Forging
DTH BIT Colo: Black, Red, Gold, Blue And Etc Bit Diameter: 800mm-1000mm
Matched Hammer: TH28 DTH Hammer Processing Type: Processing Type

TK18 TH18 SD18 Numa180-495mm 525mm 580mm 660mm 680mm DTH Drill Button Bits For DTH Drill rig use


About Changsha Tianhe Drilling---

Manufacturer---rock drilling tools, like DTH hammers and bits, DTH drill pipes, RC hammers and bits, tophammer button bits, coupling, cross bits, drill rods located in Changsha, Hunan, China.
Experience--in this field of DTH hammers and bits for 20 years.

Export countries---our customers from all over the world, such as France, Spain, Italy, South Africa, Iran, Malaysia, Australia ad etc.


1. TK28 DTH Bit specification

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
  • Other size from 800mm to 1000mm are available

2. DTh Bit Shank can be available:

1), Dia. 64mm-70mm shank Bulroc BR1
2), Dia. 70mm-95mm shank Halco MACH20, Bulroc BR2
3), Dia. 90mm-102mm shank COP32, COP34, Halco MACH303, M30, DHD3.5, Bulroc BR3
4), Dia. 105mm-152mm shank COP44, DHD340, Halco MACH44, SD4, M40, QL40, Bulroc BR4
5), Dia. 135mm-165mm shank COP54, DHD350R, COP54, Halco MACH50, SD5, M50, QL50, Bulroc BR5
6), Dia. 152mm-254mm shank COP64, DHD360, SD6, M60, QL60, Bulroc BR6
7), Dia. 203mm-330mm shank COP84, DHD380, SD8, QL80
8), Dia. 254mm-380mm shank SD10, Numa100
9), Dia. 305mm-508mm shank DHD1120, SD12, N120, N125
10), Dia. 500mm-700mm shank SD18 TH18 NUMA180

11) Dia. 600mm-800mm shank TH24 NUMA240

12) Dia. 800mm-1000mm shank TH28 


3. 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.


4. Carbide Button Shape Selection:

1. Semi-Ballistic Buttons

2. Ballistic Button

3. Spherical Button

4. Two-step Button


5. Photos:

Large Hole Piling Drilling Down Hole Hammer Drill Bits TH28-1000MM Diameter


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

Contact Person: Ms.chen

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