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Durable Forging Down The Hole Hammer Drilling Without Foot Valve For Ore Mining

Categories Borewell Drilling Hammers
Brand Name: New Diamond
Model Number: NM series Hammer
Certification: ISO9001:2008
Place of Origin: Hunan, China (Mainland)
MOQ: Negotiable
Price: Negotiable
Payment Terms: L/C, T/T, Western Union
Supply Ability: According to order quantity
Delivery Time: 5-8 work days
Packaging Details: Carton packaging and wooden box packing
Type: Hammer
Processing Type: Forging
Use: Ore Mining
Color: Required
Machine Type: Drilling Equipment
Usege: Mining&Construction&Water Well Drilling
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Durable Forging Down The Hole Hammer Drilling Without Foot Valve For Ore Mining

Description


DTH hammers are used for blast hole drilling and water well drilling project.Working with DTH drilling pipe and DTH drill bit, mainly applied in Mining,Marble quarry or well drilling and other construction projects.


Down the hole rock tools (drilling tools) are rock drilling equipment which takes compressed air as power source to partially transfer impact power into drilling holes. An air distributing device in a top hammer controls a piston to move back and forth. An impact device arranged in the front of the top hammer transfers the impact powderto a down-the-hole bit to crush rocks.


A, using the raw material of super coarse grain hard alloy, the alloy has been sintered under pressure to improve the hardness and toughness of the bit.


B, unique design, improve drilling speed, use significantly improve life.


C, select advanced steel to ensure that the overall performance of the bit is consistent.


D, after sale guarantee, to replace the bad goods package.


Applications



Widely used in mines, quarries, earthworks and other engineering drilling blasting hole, guardrail hole, mountain reinforcement, anchorage and other engineering holes, geothermal exploration hole, Well bore and other fields.


Specifications


NM Series High Air Pressure DTH Hammers Without Foot Valve

Technical Data

Length(Without Bit)NM4ANM5ANM6ANM8A
1005mm1110mm1161mm1338mm
Weight(Without Bit)40.00kg68.50kg90.00kg176.00kg
External DiameterØ99mmØ126mm

Ø142mm Ø144mm

Ø146mm Ø148mm

Ø180/Ø185mm
Bit ShankNM4NM5NM6NM8
Hole RangeØ110-Ø135mmØ155-Ø190mmØ155-Ø203mmØ195-Ø254mm
Connection ThreadAPI2 3”/8REG

API2 3”/8REG

API3 1”/2REG

API2 7”/8REG

API3 1”/2REG

API2 7”/8REG

2 7”/8 IF

API4 1”/2REG
Working Pressure1.2-2.0Mpa1.3-2.3Mpa1.5-2.5Mpa1.5-3.0Mpa
Impact Rate at 17 Bar30HZ28HZ25HZ22HZ
Recommended Rotation Speed25-40r/min20-35r/min20-30r/min15-25r/min
Air Consumption

1.0Mpa:5.0m³/min

1.8Mpa:9.0m³/min

2.4Mpa:14.0m³/min

1.0Mpa:7.0m³/min

1.8Mpa:14.0m³/min

2.4Mpa:19.0m³/min

1.0Mpa:9.0m³/min

1.8Mpa:18.0m³/min

2.4Mpa:26.0m³/min

1.0Mpa:12.0m³/min

1.8Mpa:22.0m³/min

2.4Mpa:28.0m³/min


Feature Advantage



1 Price commitment: in order to ensure the high reliability of products, high-quality brand products are selected for raw material selection. Under the same competitive conditions, the products will be provided to customers at a favorable price without reducing the technical performance of products.


2 Quality commitment: the manufacture and inspection of the products have quality records and testing data, and the performance of the products can stand the customer's inspection.


3 Customer service: in order to create new Jingang brand, enhance corporate reputation and set up corporate image, we serve customers with the principle of "preferential price, considerate service and reliable product quality".


The appearance of the picture is different from that of the actual product, and the actual product is the standard.


NM Series High Air Pressure DTH Hammers Without Foot Valve
Item DescriptionWeight(kg)
NM4ANM5ANM6ANM8A
Top Sub6.5013.7020.0034.00
“O” Ring Of Top Sub0.100.0150.0150.015
Breakout Ring---0.30
Chenck Valve0.350.700.701.20
Spring0.050.100.100.10
Air Distributor1.502.003.506.00
Internal Cylinder2.102.804.206.50
Piston8.5015.0023.0042.50
External Cylinder14.8024.0026.0061.00
Guided Sleeve1.802.604.805.30
“O” Ring Of Stop Ring0.0050.010.010.01
stop Ring0.300.700.801.50
Breakout Ring---0.30
Drive Chuck3.806.504.2017.30
Drill Bit6.6013.5023.0031.00
Quality Durable Forging Down The Hole Hammer Drilling Without Foot Valve For Ore Mining for sale
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