HD120A Down The Hole DTH Hammer

• Certification: ISO 9001:2008
• Standard: ASTM
• Surface Treatment: Polishing
• Manufacturing Process: Forging
• Material: Alloy Steel
• Shank: DHD1120
• Model NO.: HD120A
• Top Sub Thread: API 6 5/8"Reg
• Transport Package: Carton+Plywood Case
• Specification: HD120A
• Trademark: SOLLROC
• Origin: China
• Production Capacity: 10000/Month

Product Description

About us
We are a leading manufacturer of rock drilling tools, like DTH hammers and bits, DTH drill pipes, RC hammers and bits, tophammer button bits, coupling, cross bits, drill rods located in Changsha, Hunan, China.We have rich experience in this field of DTH hammers and bits for 20 years.Owing to high quality, professional serivce and competitive price, we have gottengood reputation from our customersfrom all over the world, such as France, Spain, Italy, South Africa, Iran, Malaysia, Australia ad etc.

Product specifications:

shank	DHD1120
Length(less bit)	1880mm
External diameter	275mm
Top sub thread	API 6 5/8"REG
Weight(less bit)	474kg
Hole range	305mm-445mm
Working pressure	1.0-3.0Mpa
Impact rate at 1.4Mpa	20Hz
Recommended rotation speed	15-25r/min
1.0Mpa	28m³/min
Air consumption     1.8Mpa	50m³/min
2.4Mpa	71m³/min

We can also provide related products DTH hammers, ODEX system, symmetrix systems, slide block drilling systems, etc and DTH drilling pipes for various thread API REG, API IF, BECO, etc.

Product photos


Quality warranty:
Our products are made of high quality steel and all spares parts are inspected strictly before shipping. We have quickly responses for your complaint and suggestion.

Package:
Using ply-wooden cases and pallet for package to protect the products and avoid the damagement during transportation. Also we can customize package according to your special requests.

Production time:
Generally need 15-25 days

Transportation:
By air, By Express or By sea according to your requests.