High-Quality DHD350 High Air Pressure DTH Hammer Manufacturers, Pricelist

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High-Quality DHD350 High Air Pressure DTH Hammer Manufacturers, Pricelist

DHD350 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

DHD350 Quarry Mining High Air Pressure DTH Hammer

The DHD series DTH Hammers are engineered for high performance in various geological conditions, providing efficient drilling with low operating air pressure.

Design Highlights

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Valveless design for high performance even at low operating air pressures.

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Strong robust bits designed without foot valves to withstand heavy-duty applications.

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Maximizes energy output while significantly reducing maintenance and service requirements.

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Non-reversible wear sleeve for specific industrial stability.

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All critical internal components are heat-treated under strict control to ensure maximum tool longevity.

Applications

These hammers are widely utilized across multiple industries, including:

● Mining & Quarrying ● Road Construction ● Water Well Drilling ● Slope Protection ● Anchoring & Blasting

DTH Hammers Series Availability

✓ High pressure series
✓ Medium & Low pressure series
✓ High efficiency high pressure series
✓ Reverse circulation series

Type	Model	Length	Weight	External Dia. (mm)	Hole Range
Type	Model	(mm)	(kg)	External Dia. (mm)	(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
8 inch	D85	1492	188	Φ180	Φ195-254
	SD8	1463	192	Φ180
	QL8	1465	182	Φ180
	Mission80	1338	176	Φ180
10 inch	SD10	1502	290	Φ226	Φ254-311
10 inch	NUMA100	1510	288	Φ226	Φ254-311

DHD350 DTH Hammer Detailed Specs

Hammer Length (without bit)	1209 (mm)
Top Sub Thread	API 2 3/8" REG PIN
Outside Diameter	125 (mm)
Weight	78.5 (KG)
Bit Diameter	135-155 (mm)
Working Pressure	10-25 (Bar)
Air Consumption	9-15 (M³/min)
Bit Shank	DHD350

Frequently Asked Questions

What are the primary applications for DHD350 DTH hammers?

They are widely used in mining, quarrying, water well drilling, road construction, and various anchoring or slope protection projects.

What is the advantage of the valveless design in these hammers?

The valveless design allows for high performance even when operating at lower air pressures, maximizing energy output and reducing overall maintenance needs.

What is the working pressure range for the DHD350 model?

The DHD350 hammer operates efficiently within a working pressure range of 10 to 25 Bar.

Are the internal components durable for heavy-duty use?

Yes, all critical internal components undergo strict heat treatment processes to ensure maximum longevity and wear resistance in harsh drilling environments.

Is the wear sleeve on the DHD series reversible?

No, the wear sleeve in this specific series is designed to be non-reversible.

What types of DTH hammers do you offer besides high pressure?

We provide a comprehensive range including low pressure, medium pressure, high-efficiency high pressure, and reverse circulation series.