Pneumatic Vertical Drill QDZ-28A
Product Instruction
China’s first Down The Hole (DTH) Driller was successful designed and developed and won the national patent in 2004.
ProDrill Equipment is the only manufacturer who has grown up with professional stone mining practice and experience in the past 30 years, is reliable and trustworthy.
ProDrill Equipment is the first to put forward the concept of “ Cool Mining Process in Stone Quarry” in the worldwide stone industries, and successfully use “Cool Mining Process” in its own quarries. With the wide application of new technology, the stone mining industries start to give up the traditional mining method and turn to the green and environment protection mining process.
Our products are: Hydraulic-pneumatic DTH Driller, Full Pneumatic DTH Driller, Pneumatic Driller (horizontal/vertical), Hydraulic Driller (horizontal/vertical), Engine powered Drill Rig, Electric Drill rig, etc.
Technical Parameter
| Model | QDZ-28A |
| Max. Drilling depth | 5m |
| Impact force | 44-70j |
| Diameter of hole | 34-42mm |
| Rotate speed | 250-300r/min |
| Working pressure | 0.4-0.63Mpa |
| Air consumption | 52-82 l/s |
| Length of frame | 3m |
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