High Quality Water Well Drilling 4 6 8 Inch DTH Hammer

• Customization: Available
• After-sales Service: 6 Months
• Warranty: 6 Months
• Model NO.: ND65A
• Standard: API
• Surface Treatment: Oxidation
• Manufacturing Process: Forging
• Material: Cast Steel
• Product Name: High Wind Pressure Down The Hole Impactor
• Length(Less Bit): 1210mm
• Outer Diameter: 148mm
• Connection Thread: API 3 1/2"Reg
• Bit Shank: ND65A
• Hole Range: 158mm-203mm
• Work Pressure: 1.2-2.5MPa
• Recommended Rotation Speed: 30-60 R/Min
• Air Consumption: 1.8MPa/2.4MPa
• Transport Package: by Sea
• Specification: 106kg
• Trademark: WEILIDA
• Origin: China
• Production Capacity: 300pieces/Month
• Package Size: 15.00cm * 15.00cm * 20.00cm
• Package Gross Weight: 106.000kg

Product Description

 

What is DTH hammer ?
DTH Hammer has a wide range of use in all kinds of hard and abrasive rocks,follwing features:
1.New products designed based on mining condition, improved by advanced technology.
2.International High-Standerd materials with advanced process guaranteed quality.
3.Faster drilling rate.
4.Enhaced hardness to expand the life of hammer, and lower the using cost.
5.Low consumption of electricity with big impact force.
6.Good transmission of power.
7.The modern theory is adopted in the structural design, which makes the stress wave duration longer, the stress amplitudeis lower, and the piston life is long.

Technical Parameters
Length	Weight	Outer Diameter	Connection Thread	Bit Shank	Hole Range
1210mm	106kg	148mm	API  3 1/2'' REG	ND65A	158mm--203mm
Work Pressure		Recommended Rotation Speed		Air Consumption
				1.8Mpa	2.4Mpa
1.2-2.5Mpa		30-60 r/min		16m³/min	16m³/min

Ref.	Parts	Weight	Part No	Ref.	Parts	Weight	Part No
01	Top Sub	21.5kg	01-SP681-01	09	Piston Case	36.5kg	01-SP681-09
02	"O"Ring	0.01kg	01-SP681-02	10	Guided Ring	6.3kg	01-SP681-10
03	Disc Spring	0.34kg	01-SP681-03	11	Check Ring	0.02kg	01-SP681-11
04	Check Valve	0.56kg	01-SP681-04	12	Retainer Ring	1kg	01-SP681-12
05	Spring	0.05kg	01-SP681-05	13	"O"Ring	0.01kg	01-SP681-13
06	Valve Seat	4.3kg	01-SP681-06	14	Drive Chuck	8.2kg	01-SP681-14
07	Inner Cylinder	4.2kg	01-SP681-07	15	Drill Bit		01-SP681-15
08	Piston	23kg	01-SP681-08

It has following advantages:
1.Avoid the problem happens on foot valve. Fracture,expansion and contraction.
2.Lower air comsumption and higher impact frequency.15-30%higher drilling efficiency than the bit with foot valve.
3.Simpler structure and less spare parts, makes easier & cheaper maintenance.
4.Heat-hardened spare parts,makes longer serving life and less problem.
5.Thread connection for top sub and drive chuck,makes easier disassembly.

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Company Profile

     Shijiazhuang Weilida Prospecting Machinery Co., Ltd. (formerly Northern Petroleum Geophysical Exploration Machinery Factory) was founded in 1988. Our factory is located in Jinzhou City, Shijiazhuang, an important industrial base in Hebei Province. Our factory has a beautiful environment and a superior geographical location. It is a 5-minute drive from Jinzhou South Exit of Shiheng Expressway, a 15-minute drive from Xinji South High-speed Railway Station, an hour's drive from Zhengding International Airport, and a 3-hour drive from Beijing Daxing International Airport.

    Our company has a modern factory area of 13,000 square meters and 80 employees.It is one of the few domestic and international enterprises integrating drilling tool design, manufacturing, testing, domestic and foreign trade sales.

    We always take sincere cooperation, reliable quality and high-quality service as our corporate philosophy, improve self-management level adjust market layout, improve product technology content, and solve customer needs, so that customers can buy with confidence and use comfortably.

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FAQ

Q: Are you trading company or manufacturer ?
A: We are a professional manufacturer.
Q: How long is your delivery time?
A: Generally it is 10~20 days if the goods are in stock. or it is 20~30 days if the goods are not in stock, it is according to
quantity.
Q: How about discount?
A: Price is based on products and order quantity.
Q: Do you accept sample order?
A: Yes sure, please contact us for details.