Product Description
420ST is a diesel and electric dual-use model, which can be switched between power at any time. And it can be widely used in foundation pit bolts, follow-up pipes, and large-diameter twist drill pipes
Product Features

01
The supporting power standard of this type of drilling rig is a dual power design. Standard configuration 76mm three-meter drill pipe or optional twist drill pipe.
02
The high-torque double cycloid motor is used to drive the rotary head, which increases the torque of the drilling rig, up to 7000Nm, which makes the drilling hole range wider.


03
Standard assembly of plunger motor, international construction machinery walking crawler, more powerful climbing and more reliable quality.




Specification
Diesel Engine | YC4DK-80 58kW |
Electric Motor | 55 kW |
Hole Depth | 60m |
Drill Pipe Sizes | 76x3000mm |
Hole Dia | 90-203mm |
DTH Hammer | 4"/ 5"/ 6" |
Rotation Torque(Max.) | 5000N.m |
Rotation Speed | 60-140 rpm |
Feed Force(Max.) | 35 kN |
Feed Speed | 26 m/min |
Feed Type | Chain&Cylinder |
Pull Up Force(Max.) | 80 kN |
Tramming Speed(Max) | 2.5 km/h |
Gradient | 25° |
Track Frame Oscilation | ±10° |
Total Weight | 5340 kg |
Transportation Dimensions | 6500x2280x2400mm |