Pneumatic DTH Hammer/hydraulic hammer for sale(NR90)

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Product Description

Pneumatic DTH Hammer/hydraulic hammer for sale(NR90):

1. 10 years manufacturing experience;

2. Certificate: ISO9001:2008

3. Material: Carbide

 

NR Series DTH hammer, a kind of valve-equipped Low-Air-Pressure hammer with a single piston, a plate valve  and a central exhaust structure. The compressed air is adopted as the driving force. To prevent dust pollution and get a better performance, some high-pressure water may be added into the air for wet rock drilling.

 

Advantages:

 

1. the strong energy of single impact and the low energy consumption in rock crushing;

2. the weight ratio of piston and bit almost reaches 1:1 to provide long effective acting time, which leads to the improved efficiency in rock crushing and to extended service life of the drilling tool;

3. a good performance in central air exhaust and cuttings discharge, which reduces the repeated crushing of rock;

4. a check valve device is available to drill holes under water.

 

The NR Series dth hammer , an ideal drilling tool, is widely used in such industries relating to energy, transportation, metallurgy, building etc.

 

NR90 DTH Hammer Technical Data

Length    (Without Bit)

Weight  (Without Bit)

External diameter

Bit Shank

Hole Range

Connection Thread

800mm

19.00kg

Φ80mm

CIR90

Φ80-Φ110

T48*10*2

Working Pressure

Impact rate at 0.5Mpa

Recommended rotation speed

Air consumption

0.5Mpa

0.7Mpa

0.5-0.7Mpa

14HZ

25-40r/min

6.5m³/min

8 m³/min

Item Description

Weight (kg)

Part Number

1. Top Sub

2. valve Seal

3. Check Valve

4. Spring

5. Compression Buffer

6. “O”Ring

7. Valve cover

8. Guide Tube

9. Valve

10. Air Distributor

11. Internal Cylinder

12. Piston

13. External Cylinder

14. Guided Sleeve

15. Stop Ring

16. Drive Chuck

17. Drill Bit

2.8

0.01

0.02

0.01

0.01

0.01

0.60

0.01

0.01

0.60

2.00

4.00

5.80

1.20

0.01

1.60

3.50

NR9001

NR9002

NR9003

NR9004

NR9005

NR9006

NR9007

NR9008

NR9009

NR9010

NR9011

NR9012

NR9013

NR9014

NR9015

NR9016

NR9017

 

 

 

 

 

 

 

 

 

 

 

 

 
Packaging & Shipping

  

 
Our Services

Our advantages:

 

We have advanced production equipments & talented researchers & technicians & rich experiences in R & D and production.
We use the best quality raw materials.
We adopt advanced production technology & strict testing procedure.
We passed ISO9001 quality management system certification.
We accept OEM manufacturing and produce on your design.

 

 

 
Company Information

 

 

 

 

 

Place of Origin: Hunan, China Brand Name: new diamond Model Number: Pneumatic DTH Hammer NR90 Type: Drill Shank Machine Type: Drilling Tool Certification: ISO9001:2008 Material: Carbide Processing Type: Forging Use: Ore Mining