China DHD3.5 Rock Drilling Tools High Air Pressure DTH Hammer with Foot Valve Factories, Quotes

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

Basic Product Information

Model NO.

DHD3.5

Certification

CE, ISO 9001:2000, ISO 9001:2008

Standard

AISI, GB

Surface

Spray-Paint

Material

Carbon Steel

Machine Type

Drilling Tools

Shank Adapter

CIR/DHD/M/Ql/SD

Outer Diameter

82mm

Connection

API2 3/8"Reg

Hole Range

90mm-110mm

Work Pressure

1.0-1.7 MPa

Capacity

500000 PCS/Month

Product Description & Features

Because of economy and powerful drilling capacity, down the hole hammer become an advanced drilling tool for drilling and mining industries. Down the hole hammers and drill bits are designed together to work in perfect unison, giving high penetration rates, long service life and low costs.

Maximum Energy Delivery: Fast drilling speed and low air consumption due to specialized inner structure designed according to rock drilling theory.
Superior Materials: High quality alloy steel and advanced processing technology ensure smooth performance and long service life.
Low Maintenance: Simple and reliable inner structure allows for easy assembly and disassembly.
Multihead Thread: Connecting chuck and cylinder designed for easy bit departure.
Versatility: Interchangeable with DTH bits and drill pipes; available in low and high pressure versions.

Applications

Suitable for high pressure drilling rigs, water well drilling, bench drilling, oil well drilling, and mineral exploration. Provides 15% to 30% faster penetration and maximizes efficiency for any compressor capacities.

Technical Parameters

Length (Less bit)	Weight	Outer Diameter	Connection Thread	Bit Shank	Hole Range
928mm	25Kg	82mm	API2 3/8"REG	DHD3.5	90-110mm
Work Pressure		Recommended Rotation Speed		Air Consum. (1.0Mpa)	Air Consum. (1.5Mpa)
1.0-31.7 Mpa		30-60 r/min		4.5m³/min	8.5m³/min

Detailed Product Photos

Packaging & Shipping

Package Size

30.00cm * 30.00cm * 30.00cm

Gross Weight

5.000kg

Packing Material

Wooden Case

Frequently Asked Questions

1. What are the accepted methods of payment?

We accept T/T (Telegraphic Transfer), Western Union, or L/C at sight.

2. What is the typical handling time for an order?

Based on order quantity, production normally takes 25 days. If the requested size is in stock, it only takes 2 to 3 days.

3. What shipping options are available?

For sample orders, we suggest courier express (DHL/UPS/TNT/FEDEX) or air. For bulk orders, we recommend shipping by air or sea.

4. How do you ensure product quality?

We have an experienced internal QC team. Every order undergoes strict inspection and testing before being shipped out.

5. What kind of after-sales service do you provide?

Our sales team responds to inquiries within 24 hours. Technical support is available at any time, and free replacements are provided for confirmed quality failures.

6. Is the DHD3.5 hammer suitable for water well drilling?

Yes, the HD series DTH hammers are highly suitable for water well drilling, mining, and civil engineering applications.