China DHD340 Down The Hole Impactor DTH Hammer for Construction and Mining Manufacturers, Pricelist

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China DHD340 Down The Hole Impactor DTH Hammer for Construction and Mining Manufacturers, Pricelist

Product Details

Customization:	Available
After-sales Service:	Repair or Replacement
Warranty:	6 Months

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Product Description

Basic Information

Model NO.:DHD340 DTH Hammer

Certification:CE, ISO 9001:2000, ISO 9001:2008

Standard:AISI, GB

Surface Treatment:Spray-Paint

Manufacturing Process:Stamping

Material:Carbon Steel

Machine Type:Drilling Tools

Color:Red, Black, Yellow, White

Bit Adapter:DHD340

Length:1032mm

Outside Diameter:99mm

Weight:43kg

Working Pressure:1.0-2.8MPa

Transport Package:Wooden Case

Origin:China

HS Code:8431432000

Packaging & Delivery

Package Size	30.00cm * 30.00cm * 30.00cm
Package Gross Weight	5.000kg

Product Description

High air pressure DTH hammer is a specialized down-the-hole tool primarily used for percussive drilling in rock formations. Characterized by high air pressure and superior efficiency, it is ideal for operations with abundant air supply. The hammer utilizes compressed air to drive the internal piston, generating high-impact energy that hits the drill bit to penetrate rock effectively.

Due to its economic efficiency and powerful drilling capacity, this DTH hammer has become an advanced choice for mining and construction industries. Our hammers and bits are designed to work in perfect unison, ensuring high penetration rates, extended service life, and minimized operational costs.

🚀 Key Advantages

Maximum Energy Transfer: Designed based on the latest rock drilling theory to ensure fast drilling speeds and low air consumption.
High-Quality Materials: Crafted from premium alloy steel with advanced processing technology for smooth performance.
Low Maintenance: Simple and reliable inner structure allows for easy assembly and disassembly.
Easy Operation: Multi-head thread connecting chuck and cylinder makes departing the bit from the hammer effortless.
Versatility: Fully interchangeable with standard DTH bits and drill pipes.

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
8 inch	D85	1492	188	Φ180	Φ195-254
	SD8	1463	192	Φ180
	QL8	1465	182	Φ180
	Mission80	1338	176	Φ180

⚙️ DHD340 Specific Data

Hammer Length without bit	1032 mm
Top sub thread	API 23/8" 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

Detailed Photos

Professional Production

Frequently Asked Questions

What is a high air pressure DTH hammer?

It is a down-the-hole drilling tool that uses compressed air to drive a piston, creating high-impact energy to drill through hard rock formations efficiently.

What are the main applications for these hammers?

They are widely used in mining, quarrying, water well drilling, bench drilling, and civil engineering projects where rapid rock penetration is required.

What makes the HD series hammers highly efficient?

Efficiency is achieved through a specialized inner structure designed according to modern rock drilling theory, which maximizes energy transfer to the bit while minimizing air consumption.

Are the components easy to maintain?

Yes, the hammers feature a simple and robust design that allows for easy assembly and disassembly, reducing downtime during maintenance.

Is a foot valve required for the drill bits?

According to the technical specifications for these high-pressure models, a foot valve is not required in the bit, which helps in extending the part's life.

How much faster can these hammers penetrate compared to others?

Under optimal conditions, our high air pressure DTH hammers can penetrate 15% to 30% faster than standard models, providing higher production at a lower unit cost.