China Numa125 Down The Hole Impactor DTH Hammer for Construction and Mining Factory, Quotes

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

Basic Information

Model NO.

NUMA125 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

Bit Adapter

Numa125

Length

1785mm

Outside Diameter

305mm

Weight

698kg

Working Pressure

1.5-3.3MPa

Production Capacity

500000PCS/Month

HS Code

8431432000

Product Description

High air pressure DTH hammer is a professional down-the-hole tool mainly used for percussive drilling in rock formation. Characterized by high air pressure and superior efficiency, it is ideal for areas with abundant air supply. By using compressed air to drive the piston to reciprocate, it generates high impact energy to penetrate rock efficiently.

Key Advantages:

🚀 Maximum Energy Transfer: Designed according to the latest rock drilling theory for fast speed and low air consumption.
🛠️ Premium Durability: Adapted high-quality alloy steel materials and advanced processing technology.
🔧 Easy Maintenance: Simple, reliable inner structure allows for easy assembly and disassembly.
🔗 Versatile Connection: Multi-head thread connecting chuck and cylinder makes it easy to depart bit from hammer.

Our DTH hammers are widely applied in mining, quarrying, water well drilling, bench drilling, and civil engineering. They are designed to penetrate 15% to 30% faster, providing additional production at a lower unit cost.

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

Product Gallery

Frequently Asked Questions

What are the available methods of payment?

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

How long does it take to process an order?

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

What shipping ways do you offer?

For sample orders, we suggest express couriers like DHL/UPS/TNT/FEDEX or air freight. For bulk orders, we recommend shipping by air or sea.

How is the quality control managed?

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

What kind of after-sales service is provided?

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

Are different pressure hammers available?

Yes, we provide both low-pressure and high-pressure DTH hammers to suit various drilling requirements and compressor capacities.