In May 2018, the leaders of China Railway Construction Headquarters observed the test at the granite site in Guangdong. ZEGA integrated drilling truck D440 dust removal, noise, efficiency and mobility have been highly recognized and praised by the leaders of the headquarters.
Below is a picture of the construction site< a href="https://www.lishila.com/"> historical story> https://www.lishila.com/
Headquarters leaders visited the construction site to check the operation of the machine and guide the work.
Accompanied by company managers and staff, leaders have an in-depth understanding of machine operation and construction efficiency.
At the scene, the leader fully checked the all-round operation of the machine. Guiding opinions are provided where there are deficiencies. And gave a high uation to the on-site employees who stick to their posts and dedicate themselves.
ZEGA integrated drilling rig D440 dust removal, noise, efficiency, maneuverability are highly recognized and praised by headquarters leaders.
|main technical parameters of D440
|recommended aperture range
||Drill arm type
||High strength single straight arm
||Ø90 -130 mm
|Suitable for DTH impactors
||3.5 inch / 4inch
||Motor chain propulsion system
|lever change system capability
|Number of poles
||Advance the trip
|Drill pipe outer diameter
||68 mm / 76 mm
|Drill pipe length
||Maximum propulsion speed
|Automatic rod change maximum hole depth
|hydraulic rotary head
||Maximum pulling force
|Maximum operating torque
||Maximum two-speed walking
||Maximum driving force
||30º (when greater than 20º, it is recommended to have a winch).
||191 kW @ 2,000 rpm
||Track frame swing angle
||2 / Country 3
||Shipping dimensions (without options), approximately
|Maximum working pressure