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28mm,32mm Coal Mine Roof Bolt

Henan Zhongmei Drill Tool Co., Ltd.
28mm,32mm Coal Mine Roof Bolt thumbnail-1
28mm,32mm Coal Mine Roof Bolt photo-1
US$ 1 - 10,000 MOQ: 2 Pieces
Key Specifications
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Place of Origin:
Henan, China
Brand Name:
ZM
Model Number:
all type
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Payment & Shipping
Payment Methods:
Port of Shipment:
Qingdao Ningbo etc.
Delivery Detail:
Delivery time depends on order quantity.

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Place of Origin Henan, China
Brand Name ZM
Model Number all type
Type Core Drill Bit
Material Tungsten Carbide
Use Well Drilling

Specifications

1.tungsten carbide drill bit,coal mine roof bolt
2.low price and supreme quality
3.manufacturer
4.Certified by ISO9001

  28mm,32mm coal mine roof bolt   

Product Description:
Applications:

 Apply to the anchor-network support hole drilling in coal mine, hydraulic project. Etc.
Characteristics:
1. High wear resistance and impact-resistance toughness.
2. To repeat repair & greaning are not necessary, long drill life.
3. High efficiency could be promoted sharply in penetration of high-medium hard rock formation.
4. Labour intensity could be reduced.
5. Rock formation to be suitable t: F=4-12

We can manufacture all kinds of bits and shells according to customer's special requirement.

Any requirement please contact us, we'll do the best service for you. Hope we can establish a good business relationship

 

Colliery Drilling Tools

 Main Standard(mm)

 

 

 

 

D

H

L

M

Thread joint  

27

44

17

  M14× 1.5

 

27

54

17

  M12× 1.75

 

28

54

20

  M12× 1.75

 

29

52

18

  M14× 1.5

 

30

50

18

  M14× 1.5

 

32

52

22

  M14× 1.5

 

32

56

22

  M12× 1.75

 

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Henan Zhongmei Drill Tool Co., Ltd.
Business Type
Manufacturer, Trading Company
Year Established
2007
Factory Size
5,000-10,000 square meters
Total Employees
101 - 200 People
Contact Supplier Request Quote Chat Now

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