ماكينة الخوازيق PVE Woltman 90DR pile driving- and drilling rig

Woltman 90DR (7528-D) drilling rig for displacement and CFA but which can also be used for pile driving.

Leader sections 2.5m + 16.5m + 6m + 3.5m + 1.5m
Leader length included 30m nett. length under the cathead
Nett. drilling depth 26m in general (might vary due to other accessories)
Vertical stroke of leader 4.5m (1.4m above the ground, 3.0m below the ground level)
Leader width 720 mm
Leader type reinforced box type
Max. torque 500 kNm on the first 19m leader, 400 kNm above that
Drilling depth approx. 26,5 meter when not using an auger cleaner
Horizontal stroke 1500 mm
Engine MTU Mercedes (fully overhauled, Nov. 2025)
Engine type V12 turbo diesel
Engine output 583 kW / 800 HP
Hydraulic pumps A11-260EP main winch function
A11-260LRDS other functions, A10-100, pull down
Track length 5650 mm
Track width 900 mm
Working width 4.800 mm
Counter weight 4+6 = 10 ton
Operational weight 85 ton incl. rotaryhead and tracks excl. drill casing
Transport width 3.500 mm
Transport length 23.500 mm
Transport weight 75t excl. rotary head
Main winch (rotary head) 80t (8 lines of 10t)
Pile winch 12t (2 lines of 6t)
Auxiliary winch 3,5t (on a single line)
Pull down winch 20t (2 lines of 10t)
Man-lift winch 0,6t on a single line
Driving speed 0-1,6 km/h
Original year of manufacture 2000
Extensive overhauled in 2021
Engine fully overhauled in 2025, newly certified in 2026

This Woltman machine was overhauled extensively and it was than also equipped
with a a brand new data acquisition system. This shows parameters like torque,
depth, drilling speed and pull up. The system is also suitable for groutpressure reading.

During the overhaul of the Woltman machine the following things were carried out amongst other repairs:

- Different leader sections were repaired and new parts and steel profiles were fitted. .
- Track plates, chains and rollers were are replaced by brand new ones.
- Leader head fitted with new bearings, sheaves and new telescopic cylinder.
- Hydraulic pipe rack was rebuilt and man-lift guide was replaced.
- Cylinders of the pile arms were replaced by new cylinders.
- Hydraulic hoses and Harting connectors were all replaced.
- Hydraulic and elekcronics in the leader foot were all replaced
- Limit switches of man-lift replaced.
- Steel construction of leader partly rebuilt.
- Extensive oil change on winches and pressure tested.
- Base machine fitted with new hydraulic hoses.
- New intercooler installed in the base machine.
- New steel wire ropes installed on all the winches including certificates.
- Backstay cylinders resealed with new gaskets.
- Topping cylinder completely overhauled and new rod installed.
- New sheave construction and new sheaves for the Fundex rotary head installed.
- Machine newly TCVT certified
- Machine repainted in blue and black colours.

Optionally, 1 pc. IHC Fundex FDE 45 hydraulic rotary head
Year of manufacture 2007
Max. torque 450 kNm (1st gear)
Max. torque 220 kNm (2nd gear)
Hydraulic motors Poclain motors
Slewing ring Rothe Erde
Pull up 4 line pull up system
Pull down modified for Woltman on 2 lines
Leader guidance adjusted for Woltman 720mm width
Colour Red, RAL 3002 repainted in 2021