High-Quality DHD3.5 High Air Pressure DTH Hammer Manufacturers, Quotes

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High-Quality DHD3.5 High Air Pressure DTH Hammer Manufacturers, Quotes

DHD3.5 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

DHD3.5 Quarry Mining High Air Pressure DTH Hammer

The DHD SERIES DTH Hammers including DHD3.5, DHD340, DHD350, DHD360, and DHD380 are engineered for excellence in demanding drilling environments.

Design Highlights

⚙️

DHD/QL/MISSION series is a valveless type hammer designed for high performance at low operating air pressure.

🛡️

Suitable bits have a strong robust design without foot valve to withstand heavy duty application.

⚡

Maximizes energy output and reduces service requirements for better efficiency.

🔧

All critical internal components are heat treated under strict control to maximize tool longevity.

Wear sleeve is not reversible.

Applications

These hammers are widely used across various industries for drilling and blasting work:

📍 Mine & Quarrying

📍 Road Construction

📍 Water Well Drilling

📍 Slope Protection & Anchoring

DTH Hammers Series Supply

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

Technical 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

DHD3.5 Hammer Details

Hammer Length without bit	928(mm)
Top sub thread	API 2 3/8"REG PIN
Outside diameter	82(mm)
Weight	25(kg)
Bit diameter	90-110(mm)
Working Pressure	10-17(Bar)
Air consumption	4.5-8.5(M3/min)
Bit shank	DHD3.5

Frequently Asked Questions

What are the primary uses for the DHD3.5 DTH Hammer?

The DHD3.5 DTH hammer is ideal for quarrying, mining, road construction, water well drilling, and anchoring projects where high air pressure performance is required.

What does the "valveless" design offer?

The valveless design in the DHD series allows for high-performance drilling even at lower operating air pressures, effectively maximizing energy output and reducing the need for frequent servicing.

What is the recommended working pressure for this hammer?

The DHD3.5 DTH hammer typically operates within a working pressure range of 10 to 17 Bar, with an air consumption rate of 4.5 to 8.5 M3/min.

Are the internal components durable for heavy-duty use?

Yes, all critical internal components undergo strict heat treatment processes to maximize tool longevity and withstand heavy-duty applications.

What is the hole range capability of the DHD3.5?

The DHD3.5 hammer is designed to drill holes in the range of Φ90mm to Φ110mm efficiently.

Is the wear sleeve reversible for this series?

No, the wear sleeve for the DHD/QL/MISSION series hammers is not reversible.