Product description
Sollroc manufactures the high cost performance and most efficient
Down-the-Hole (DTH) hammers and bits for the mining, construction
and water well industries. Drill and blast engineers and water well
contractors trust Sollroc’s DTH equipment because of the precision
engineering and high standards of drilling efficiency built into
each of our hammers and bits.
5 inch DTH bits parameters
| Bit diameter | Flushing holes No.*Button Dia. mm | No.*Button Dia. mm |
Weight (kg) |
Part No. |
| mm | inch | Gauge Buttons | Front Buttons |
| 130 | 5 1/8” | 2*Ф20 | 7*Ф16 | 7*Ф14 | 15 | HD555-130 |
| 135 | 5 1/4” | 2*Ф20 | 7*Ф18 | 7*Ф14 | 15.5 | HD55-135 |
| 140 | 5 1/2” | 2*Ф20 | 8*Ф16 | 8*Ф14 | 16 | HD55-140 |
| 146 | 5 3/4” | 2*Ф20 | 8*Ф18 | 8*Ф15 | 16.5 | HD55-146 |
| 150 | 5 7/8” | 2*Ф20 | 8*Ф18 | 8*Ф15 | 16.7 | HD55-150 |
| 152 | 6” | 2*Ф20 | 8*Ф18 | 8*Ф15 | 16.8 | HD55-152 |
| 156 | 6 7/8” | 2*Ф20 | 8*Ф18 | 8*Ф16 | 17 | HD55-156 |
Product features
Strict quality controlling
Selected high quality special steels and carbide
Produced by CNC machines
Simple and reasonable design, Low problem rate
Low air consumption, smooth drilling, Maximum impact power, High
penetration rate
| Hammer inch | Bits diameter | Shank |
| Metric | Inch |
| 1" | 64mm-70mm | 2 1/2"-2 3/4" | BR1 |
| 2" | 70mm-95mm | 2 3/4"-3 3/4" | MACH20/BR2 |
| 3" | 90mm-102mm | 3 1/2"-4" | COP32/COP34/MACH303
M30/DHD3.5/BR3 |
| 4" | 105mm-152mm | 4 1/8"-6" | COP44/DHD340/MACH44
SD4/M40/QL40 |
| 5" | 133mm-165mm | 5 1/4"-6 1/2" | COP54/DHD350R/MACH50
SD5/M50/QL50/BR5 |
| 6" | 152mm-254mm | 4 1/8"-10" | COP64/DHD360/SD6
M60/QL60/Bulroc BR6 |
| 8" | 203mm-330mm | 8"-13" | COP84/DHD380/SD8
QL80/M80 |
| 10" | 254mm-380mm | 10"-15" | SD10
NUMA100 |
| 12" | 305mm-508mm | 12"-20" | DHD1120/SD12
NUMA120/NUMA125 |
Product application and advantages
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. 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.
Detailed picture
Package and shipping
Package: carton+plywood case
Shipping: By sea, by air, by express, as your request.
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.
