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Velson - Drilling Dynamics
V4i full side profile with mast raised - auto rod changer column alongside the mast, stabilisers extended
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V4i

Auto-rod water-well rig on a light commercial vehicle chassis.

V4 platform with an automatic rod-changer system. Operates in manual, wired-remote, or fully automatic mode for 10-ft single-rod handling. Boreholes to 305 m at 6.5″.

Max Depth
305m
Hole Diameter (min)
165mm
Hole Diameter (max)
165mm
Max Pull-up
12500kgf
Platform
truck
Rod Handling
auto

Full spec sheet

01

Application

Hole diameter
6.5″ borehole
Guide bed diameter
10.5″
Max drilling depth
305 m (1,000 ft)

02

Prime mover

Chassis
Truck-mounted on a light commercial vehicle; powered from truck engine
Engine
120 HP @ 2,300 RPM

03

Mast & feed

Mast
Box-type structure
Height 5.7 m (18.7 ft)
Drill rod length 3.04 m (10 ft)
Max pull-up force
12,500 kgf (123 kN)
Max pull-up speed
25 m/min
Max pull-down force
9,000 kgf (88 kN)
Max pull-down speed
32 m/min

04

Rotary head

Configuration
Single hydraulic orbit motor
Max torque
3,800 N·m
Max rotation speed
160 RPM
Head travel length
3.6 m

05

Rod handling

Rod changer
10-ft single-rod handling, auto rod changer
Rod breakout
Hydraulic breakout
Rod storage capacity
70 rods (10 ft length)
Operating modes
Manual, wired remote, and automatic

06

Hydraulics

Max system pressure
180 kgf/cm² (2,560 psi)
Hydraulic tank volume
400 L (105 gallons)
Hydraulic oil cooler
40 LPM fin-type

07

Water & dust suppression

Water injection pump
Triplex reciprocating, hydraulic-motor driven

08

Winches

Top winch
750 kg lifting capacity

Custom build, parts, or service for the V4i?

Our team is the team that built the rig. Send a note with your application and we'll route it to engineering.