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Velson - Drilling Dynamics
Velson VEDC core drill on a self-contained crawler chassis - side view with the lattice mast folded to travel position
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Core Drill - VEDC Series

Wireline diamond-core exploration rigs, 300 m to 1500 m.

Crawler-mounted wireline diamond-core drilling rigs for mineral exploration, built as a four-model family. The VEDC 30 reaches 300 m, the VEDC 50 to 600 m, the VEDC 100 to 1000 m, and the VEDC 150 to 1500 m - each powered from a deck engine driving a variable-displacement piston pump, with a two-speed rotation head, main and wireline winches, four-corner levelling and a Velson self-energising rod clamp. NQ, HQ, PQ and BQ core sizes across the range.

Max Depth
1500m
Max Pull-up
19000kgf
Drill Type
Wireline core
Platform
crawler

Full spec sheet

01

Application

Type
Wireline diamond-core exploration drill
Core sizes
NQ, HQ, PQ, BQ

02

Model range

VEDC 30
NQ 300 m / HQ 200 m
100 HP @ 1,900 RPM
10-ton box mast
L 7 m
VEDC 50
BQ 600 / NQ 500 / HQ 340 m
120 HP @ 2,300 RPM
15-ton box mast
L 6.2 m
VEDC 100
NQ 1000 / HQ 800 / PQ 600 m
180 HP @ 2,300 RPM
30-ton box mast
L 7 m
VEDC 150
NQ 1500 / HQ 800 / PQ 600 m
200 HP @ 2,300 RPM
30-ton box mast
15,300 kg

03

Prime mover

Chassis
Crawler-mounted rig, power from deck engine
Travel 2.5 km/hr
Control system
Direct hydraulic
12 V DC (VEDC 30/50) / 24 V DC (VEDC 100/150)

04

Mast & feed

Mast
Box-type structure - 10 to 30 ton capacity by model
Mast length
9.5 m (31.2 ft)
Mast dumping
Up/down stroke 1–1.4 m
Hoisting length
6.09 m (20 ft)
Max pull-up force
6,000 kgf (59 kN) - VEDC 30
19,000 kgf (186 kN) - VEDC 150
Max pull-up speed
20–24 m/min
Max pull-down force
3,900 kgf (38 kN) to 11,500 kgf (113 kN) by model

05

Rotary head

Configuration
Two-speed head (variable-speed on VEDC 150)
Max torque
1,800 N·m (VEDC 30) to 2,900 N·m (VEDC 150) @ 1,200 RPM
Head travel length
1.8 m (chuck) to 3.66 m (threaded spindle)

06

Rod handling

Rod clamp
Velson self-energising hydraulic rod holder
Jaws NQ, HQ

07

Hydraulics

Main pump
Variable-displacement piston pump, direct-coupled to engine
Auxiliary pump
Gear pump
Hose lines
Main 5,080 psi (350 bar)
Auxiliary 2,900 psi (200 bar)
Hydraulic valve
Pilot-operated
Hydraulic oil cooler
High-efficiency cooler

08

Water & dust suppression

Water pump
140 LPM @ 1,020 psi (70 bar)

09

Winches

Main winch
Hoisting 3,500–15,500 kg
Speed 36–60 m/min
Wireline winch
Hoisting 750–2,000 kg
Speed 130–275 m/min

10

Safety & stabilisation

Stabiliser jacks
Hydraulic cylinders at four corners

11

Dimensions & weight

Length
6.2–7 m
Width
2.4–2.45 m
Height
2.7 m (VEDC 30/50) to 3.16 m (VEDC 100/150)
Total weight
15,300 kg (VEDC 150)

Custom build, parts, or service for the Core Drill - VEDC Series?

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