No Footvalve Type 3'' DHD3.5 Water Well Drilling Hammer
No Footvalve Type 3'' DHD3.5 DTH Drill Hammer For Water Well Drilling
Product introduction:
Down-the-hole rock tools (drilling tools) are rock drilling equipment which takes compressed air as power source to partially transfer impact power into drilling holes. An air distributing device in a top hammer controls a piston to move back and forth. An impact device arranged in the front of the top hammer transfers the impact powder to a down-the-hole bit to crush rocks.
DHD3.5 no footvalve DTH hammer overview:
| shank | DHD3.5 |
| Length(less bit) | 888mm |
| External diameter | 82mm |
| Top sub thread | API 2 3/8”REG |
| Weight(less bit) | 25kg |
| Hole range | 90mm-110mm |
| Working pressure | 7-25bar |
| Impact rate at 17bar | 32Hz |
| Recommended rotation speed | 30-70rpm |
Product advantages:
Application:
It can use for water well drilling,Mining,Blasting drilling ,construction 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.
Detailed photo:
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