Changsha Sollroc Engineering Equipments Co., Ltd
| Payment Terms | T/T, |
| Supply Ability | 5000 pieces/month |
| Delivery Time | 20-25 working days |
| Packaging Details | Cartons + ply wood case (no plastic) |
| Product name | DHD 340 dth hammer |
| Material | carbon steel |
| Application | Quarrying, construction, civil engineering, mining, |
| Usage | mining, water well drilling, geothermal drilling |
| Rock formation | Granite, limestone, quartz, etc |
| shank | DHD340/COP44 |
| Advantage | Hign Abrasion Resistance |
| Color | black or as request |
| Size | 4 inch |
| External diameter | 99mm |
| Brand Name | SOLLROC |
| Model Number | DHD340 |
| Certification | SGS |
| Place of Origin | China |
View Detail Information
Explore similar products
8 Inch DTH Hammer Shank DHD380 Water Well Drilling Hammer In Black Color
SD5 Carburized Steel 5'' Down The Hole Hammer Water Well Drilling Tools
6" DHD360 SD6 QL60 M60 Cop66 DTH Down The Hole Hammer For Water Well Drilling
High Speed Drilling Borewell Hammer , Mincon Air Hammer Lower Energy Consumption
Product Specification
| Payment Terms | T/T, | Supply Ability | 5000 pieces/month |
| Delivery Time | 20-25 working days | Packaging Details | Cartons + ply wood case (no plastic) |
| Product name | DHD 340 dth hammer | Material | carbon steel |
| Application | Quarrying, construction, civil engineering, mining, | Usage | mining, water well drilling, geothermal drilling |
| Rock formation | Granite, limestone, quartz, etc | shank | DHD340/COP44 |
| Advantage | Hign Abrasion Resistance | Color | black or as request |
| Size | 4 inch | External diameter | 99mm |
| Brand Name | SOLLROC | Model Number | DHD340 |
| Certification | SGS | Place of Origin | China |
| High Light | numa dth hammers ， water well drilling hammer | ||
Product description
In DTH drilling, the drill string rotates while the drilling hammer continuously strikes down into the rock. Inside the hammer, a piston powered by compressed air gives the drill bit its striking power. This combined with the rotational movement means the rock is crushed in a very efficient manner. DTH drilling tool is a kind of drilling system which uses compressed air as motivation, makes drilling impact motivation parts down the hole, to control the piston reciprocating motion by the distribution device in the hammer, and then impacts the DTH bit in the front of the hammer to transit the impacting power to the bit. The DTH bit in the front of the hammer breaks the rock to drill hole.
HD45 DTH hammer
| shank | DHD340/COP44 |
| Length(less bit) | 1030mm |
| External diameter | 99mm |
| Top sub thread | API 2 3/8”REG |
| Weight(less bit) | 39kg |
| Hole range | 110mm-135mm |
| Working pressure | 1.0-2. 5Mpa |
| Impact rate at 1.4Mpa | 27Hz |
| Recommended rotation speed | 25-40r/min |
| 1.0Mpa | 6m³/min |
| Air consumption 1.8Mpa | 10m³/min |
| 2.4Mpa | 15m³/min |
Product featutres
1. Simple design of the piston. Long life. Valveless air distribution. More reliable.
2. More efficient energy transfer, fact drilling speed, lower air consumption and lower oil consumption.
3. Fewer internal parts, simple structure, long life, less failure and easier to maintain because all the parts are heat treated.
4. Easy to disassemble because the top sub, the drive chuck and the external cylinder are connected by multi-step thread.
Advantages and application
It has the advantage of high flatness, smooth hole wall, high rigid of drill rod and hammer, independent of high axial thrust, no limit of drilling depth, low cost of devices and easiness to maintain. At the drilling hole of dia.105mm-dia.254mm, a plenty of the DTH drilling tools are used.
At present, DTH drilling tool is widely used in underground mining, quarries, hydraulic and Hydro-Power Engineering, water well drilling, Mineral exploration, anchoring hole drilling, geothermal engineering, Subway excavation, another civil engineering.
Related products
Sollroc DTH hammers
| Hammers | Bit Shank | Connection Thread | Suitable bit | Working pressure | Air consumption | |
| 2" | BR2 | RD50 box | ￠70-￠90mm | 0.7-1.75Mpa | 0.7Mpa | 4.5m3/min |
| 1.0Mpa | 4m3/min | |||||
| 1.4Mpa | 5m3/min | |||||
| 3" | DHD3.5 COP32/COP34 M30 | API 2 3/8"Reg | ￠90-￠110mm | 1.0-1.5Mpa | 1.0Mpa | 4.5m3/min |
| 1.5Mpa | 9m3/min | |||||
| 4" | DHD340 COP44 QL40 SD4 M40 | API 2 3/8"Reg | ￠110-￠135mm | 1.0-2.5Mpa | 1.0Mpa | 6m3/min |
| 1.8Mpa | 10m3/min | |||||
| 2.4Mpa | 15m3/min | |||||
| 5" | DHD350 COP54 QL50 SD5 M50 | API 2 3/8"Reg/API 3 1/2"Reg | ￠135-￠155mm | 1.0-2.5Mpa | 1.0Mpa | 9m3/min |
| 1.8Mpa | 15m3/min | |||||
| 2.4Mpa | 23m3/min | |||||
| 6" | DHD360 COP64 QL60 SD6 M60 | API 3 1/2"Reg | ￠155-￠190mm | 1.0-2.5Mpa | 1.0Mpa | 10m3/min |
| 1.8Mpa | 20m3/min | |||||
| 2.4Mpa | 28.5m3/min | |||||
| 8" | DHD380 COP84 QL80 SD8 | API 4 1/2"Reg | ￠195-￠254mm | 1.0-2.5Mpa | 1.0Mpa | 15m3/min |
| 1.8Mpa | 26m3/min | |||||
| 2.4Mpa | 34m3/min | |||||
| 10" | SD10 Numa100 | API 6 5/8"Reg | ￠254-￠311mm | 1.0-2.5Mpa | 1.0Mpa | 22m3/min |
| 1.8Mpa | 40m3/min | |||||
| 2.4Mpa | 55m3/min | |||||
| 12" | DHD1120 SD12 Numa120 | API 6 5/8"Reg | ￠305-￠445mm | 1.0-2.5Mpa | 1.0Mpa | 30m3/min |
| 1.8Mpa | 56m3/min | |||||
| 2.4Mpa | 78m3/min | |||||
Face type and button shape selections for DTH bits
Sollroc can supply DTH hammers and bits from 2"-18" with type DHD, SD, QL, Mission, Numa,etc.
Company information
Sollroc , with more 10 years of experience ,is one of the professional manufacturer and supplier of high performance rock drilling tools like: DTH hammers and bits, RC hammers and bits, DTH drill rods and top hammer drilling tools. Our tools are widely used in different drilling applications including mining, quarrying, water well drilling, geotechnical industries and etc.
Sollroc is specialized in designing, manufacturing and developing equipments and accessories for standard models as well as the special needs of clients and provides them with the best suggestions and solutions. We practice strict and stringent quality control during manufacturing and adhered to recognized and approved quality control systems. Each of our products follows the quality requirements and procedures to ensure finished products are durable and superior up to standard.
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2006
Total Annual:
10000000-50000000
Employee Number:
600~700
Ecer Certification：
Verified Supplier
Sollroc, with more than 10 years of experience, is one of the prefessional manufacturer and supplier of high performance rock drilling tools like, DTH hammers and bits, RC hammers and bits, ODEX system, symmetrix system, DTH drill rods and top hammer drilling tools, our tools are widely used in di... Sollroc, with more than 10 years of experience, is one of the prefessional manufacturer and supplier of high performance rock drilling tools like, DTH hammers and bits, RC hammers and bits, ODEX system, symmetrix system, DTH drill rods and top hammer drilling tools, our tools are widely used in di...
Get in touch with us
Leave a Message, we will call you back quickly!