KDF281 hydraulic rock drill
China hydraulic rock drill

This rock drill is used to drill blast holes for big section tunneling constructions in mining, metallurgy, water and electricity, railway, highway engineering, etc. The advanced hydraulically controlled drilling system which is safe and simple to operate incorporates the auto stop and anti jamming function. It is equipped with 4 hydraulic legs to stabilize. This kind of jumbo can walk flexibly with rubber wheels and direct diesel drive. The articulated heavy carrier and the four wheels drive are suited to work in narrow tunnels and mine roadways.

Rock drill spec:
Type KDF281(Single arm)

Body Overall size(Length/Width/Height) (m) 11× 1.65× 2.8
Hole diameter (mm) 32~57
Drifter rod length (m) 4.915
Hole depth (once) (m) 4.5
Cross section
(length*width) (m) 3× 3-6× 6
Total weight (kg) 10000

Carrier Engine power (kw) 57
Articulated steering ± 41°
Approach and departure angle 15°
Min, ground clearance (mm) 280
Drive mode Four wheel drive

Boom Type 1× ZBS***
Up/Down 55° /42°
Swinging angle
(Inner/ Outer) 42° /42°
Rotation angle
(positive/ negative) 180° /180°
Boom companding (mm) 1300
Horizontal hold Completely
Extension (mm) 1500
Impeller Type TJZ4.5
Up/Down 60° /14°
Swinging angle
(Inner/ Outer) 135° /135°
Total length (mm) 3935~4935
Hydraulic rock drill Type and number 1× Imported rock drill or HYD200
Impact pressure (Mpa) 12~14
Impact flow (L/min) 70~80
Weight (kg) 77