High-Quality DHD340 High Air Pressure DTH Hammer Manufacturer, Quotes

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High-Quality DHD340 High Air Pressure DTH Hammer Manufacturer, Quotes

DHD340 High Air Pressure DTH Hammer

BR1/BR2/BR3

DHD3.5/DHD340/DHD350/DHD360/DHD380

QL40/QL50/QL60/QL80

MISSION40/MISSION50/MISSION60/MISSION80

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Product Description

DHD340 Quarry Mining High Air Pressure DTH Hammer

DHD SERIES DTH Hammers: DHD3.5 / DHD340 / DHD350 / DHD360 / DHD380

DESIGN HIGHLIGHTS

DHD/QL/MISSION series features a valveless design optimized for high performance even at low operating air pressures.

Drill bits are engineered with a robust design, eliminating the foot valve to withstand heavy-duty applications.

Maximizes energy output while significantly reducing maintenance and service requirements.

Features a specialized non-reversible wear sleeve for targeted durability.

Internal components undergo strict heat treatment processes to ensure maximum tool longevity.

APPLICATIONS

These hammers are versatile tools widely utilized in mining, quarrying, road construction, water well drilling, slope protection, anchoring, and various drilling and blasting operations.

DTH Hammer Series Available:

High Pressure Series
Medium Pressure Series
Low Pressure Series
High Efficiency High Pressure Series
Reverse Circulation Series

DTH HAMMER SPECIFICATIONS

Type	Model	Length (mm)	Weight (kg)	External Dia. (mm)	Hole Range (mm)
3.5 inch	DHD3.5	930	25	Φ82	Φ90-110
4 inch	DHD340	1030	39	Φ99	Φ110-135
	SD4	1084	40.5	Φ99
	QL4	1097	41	Φ99
	Mission40	1005	40	Φ99
5 inch	DHD350	1214	76.5	Φ125	Φ135-155
	SD5	1175	72.5	Φ125
	QL5	1147	73	Φ125
	Mission50	1110	68.5	Φ125
6 inch	DHD360	1248	100	Φ142	Φ155-190
	SD6	1261	100	Φ142
	QL6	1212	95	Φ146
	Mission60	1161	90	Φ146

DHD340 TECHNICAL DATA

Hammer Length (without bit)	1032 mm
Top Sub Thread	API 2 3/8" REG PIN
Outside Diameter	99 mm
Weight	43 kg
Bit Diameter	110-135 mm
Working Pressure	10-22 Bar
Air Consumption	5.5-10 m³/min
Bit Shank	DHD340

PRODUCT DISPLAY

Frequently Asked Questions

Q1: What are the main advantages of the DHD340 valveless DTH hammer? A1: The DHD340 valveless design allows for high performance even at lower air pressures, maximizes energy output, and significantly reduces the frequency of maintenance compared to traditional valve-type hammers.

Q2: Which drilling applications are most suitable for DHD series hammers? A2: They are ideal for medium to hard rock formations in mining, quarrying, water well drilling, and civil engineering projects like slope protection and anchoring.

Q3: How does the "without foot valve" bit design benefit operations? A3: Removing the foot valve reduces the risk of breakages inside the hole, making the tool more robust for heavy-duty applications and ensuring more consistent operation.

Q4: What air pressure range is recommended for DHD340 hammers? A4: The DHD340 hammer operates efficiently within a working pressure range of 10 to 22 Bar, depending on the rock hardness and required penetration rate.

Q5: Why is heat treatment important for the internal components? A5: Strict heat treatment under controlled conditions enhances the hardness and wear resistance of critical internal parts, maximizing the overall lifespan of the hammer.

Q6: Can the wear sleeve of the DHD series be reversed? A6: No, the wear sleeve in the DHD series is designed to be non-reversible to maintain specific performance standards and structural integrity.