Cluster type full hole reverse circulation cluster down-holehammer is an important technical innovation and breakthroughin hard rock construction of large-diameter down-hole hammer.which is based on years of technical experience of our companyand verified by large construction sites. Patent No.: 201911313806.5 (copy must be investigated).

Product advantages:
1、The reverse circulation at the bottom of the hole can berealized by opening the hole, which can reduce therepeated crushing of large particles of rock cuttingsimprove the drilling efficiency and reduce the wear ofdrilling tools.
2，The vibration force is small, effectively reducing thevibrationimpact damage to the equipment.

3，The weight of the hammer is small, the quality is easy toguarantee and reliable, and high air pressure (2 ~3.5Mpa)can be used, and the drilling efficiency is higher.

4，Compared with the single DTH hammer of the same caliberthe price of a set of 4-11 sub hammer bits of cluster DTH hammer is only one third to one fifth of that of single DTH hammer bit.
5，Rock cuttings can be discharged in a centralized way, whichis conducive to dust reduction, environmental protection andcivilized construction.
6、The maintenance is convenient and fast. The drill can bedisassembled and replaced on site, reducing the auxiliary timeand cost
7，"One stop" service, from equipment sales, on-site installation7、commissioning to construction guidance, solves differentrequirements and problems of customers.