Top reaming bit
Recently top drill has developed overburden system to be adapted to soft conditions and very hard formation. This can allow simultaneously case the drilled hole
Dth hammer
Top drill dth hammer has severed distinctive benefits. With a special steel and finest mechanical process, top drill dth hammer offers :
top performance
heavy duty and long service life
wide bit and air pressure range
alternative shank choice
low operating cost
range of shock absorbers
conventional and reverse circulation
Tornado hammer
Top drill has developed tornado hammers and this was a landmark in the progress of dth hammers. The patented tornado, of which hammers are arranged in a specially designed pattern, provide incredible performance and reliablility. Tornado's drilling with low noise and vibration, which is essential in downtown job site, is one of top performance to offer :
very strong price difference than the mono hammer based on the diameter of the hammer (the longer the diameter, the bigger the price gap between the tornado and mono hammer)
about 5 times faster than rcd m/c in drilling speed
low noise and low vibration (itf+s even suitable for downtown job sites. App. 80db)
low maintenance cost due to the availability of replacement parts unlike the big mono hammer (big price difference between tornado bit and mono hammer bit)
about 2~2.5 times longer bit life than a mono bit because of the rotating triangle bits used
easy application of casing (patented top reaming bit in overburden system)
decreasing period of construction stopping because it can be repaired easily at the job site.
easy extension of working diameter by replacement of combined bits
available for drilling hole sizes over 2000mm in diameter
