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The Conrad Zull 2000 is the successor to the well-known Zull 1000 that is completely new with regard to set-up. It has been continued to be developed to obtain the most powerful rig in our product range. Its A-mast construction guarantees a very stable set-up during drilling under the most extreme conditions.

This rig has been equipped in its first version for reverse circulation/airlift drilling (ZULL) where a choice can be made for either 6" or 8" double-walled airlift drill pipes. The Zull 2000 in combination with the 8" double-walled drill pipes and 8" drilling system guarantees a high production speed when drilling holes as from approx. 500 mm up to a diameter greater than 1 metre. The drilling rig can be supplied with an externally set up drill pipe storage with a drill pipe manipulator. This system can be fixed with relation to the drilling rig to ensure good drill hole alignment. The drive and operation takes place from the drilling rig. As specified in the technical specifications, this rig can be fitted out to perform all drilling methods commonly used and, therefore, the Zull 2000 can be deployed as a full combination drilling rig. The Zull 2000 can be fitted out based on customer specifications for straight flush drilling, reverse circulation/airlift drilling, percussion drilling, sonic drilling, coring and Down-The-Hole drilling.

Boxer 200
Boxer 200

Drilling methods

The Zull 2000 can be fitted out based on customer specifications for one of the drilling methods described below.

  • Tool
    Reverse circulation drilling

    Reverse circulation drilling up to approx. 70 to 80 metres can be carried out with a reverse circulation pump and reverse circulation drilling bit diameters up to approx. 1200 mm. *

  • Tool

    The airlift drilling principle by using a compressor is the appropriate method to continue the reverse circulation drilling with a hole diameter of approx. 1200 mm to a depth of 1000 metres. +

  • Tool
    Straight flush drilling

    Holes with a diameter of approx. 350 mm can be continued up to a depth of 1000 - 1200 metres by using a water, mud or foam circulation system with this drilling method. *

  • Tool
    Percussion drilling

    By equipping the Zull 2000 with a rotary table and a stroke mechanism, percussion drilling is possible up to a depth of at least 200 metres with a max. casing diameter of 420 mm.

  • Tool
    Auger drilling

    The Zull 2000 can drill with both hollow stem and full augers that have an outer leaf diameter of approximately 800 mm with the standard 6" drill head.

  • Tool
    Counter flush drilling

    For special activities the Zull 2000 can be equipped with a counter flush system for sampling for exploration objectives to name but one example.

* Will depend on the geological and the soil conditions.

Operator convenience & comfort

Conrad Stanen has translated a lot of experiences of drilling rig operators into the operating friendliness of its designs. This ensures that productivity is increased as a whole and that it is made more pleasant for the drilling rig operator to work with the rig. A few examples of this are:

  • Full drill pipe manipulation system that ensures that drill pipes no longer have to be inserted and extracted manually (no physical load)
  • A semi or fully automatic facility for the above to ensure that manual control is limited to a minimum (operating comfort)
  • Radio remote control for all important drilling functions and setting up the drilling rig (good visibility of the drilling process and surrounding area)
  • Automatic greasing system
  • A high engine performance that increases productivity

The drilling rig operator can set himself or herself up in the area of the rig with his or her radio control unit. Inserting and extracting drill pipes are automatic tasks and do not lead to physical loads. This also prevents the risk of body parts becoming trapped.

Conrad Stanen bedieningsgemak en comfort Zull 2000


Option 1 Dieselmotor P.T.O. 260 kW
Option 2 Dieselmotor P.T.O. 350 kW
Length 10 / 13 m
Max. safe working load 600 kN
Height under crown sheave 9 m
Pull back / Pull down systeem through hydraulic cylinder and steel cables
Stroke 7,2 / 10,2 m
Pull back 500 kN
Pull down 150 kN
Lifting speed 0,35 m/sec
Hydraulic hoisting winch 1
Thrupass 150 mm / 125 mm
Torque / Revolutions 2000 daNm bei 60 rpm
1000 daNm bei 120 rpm
Hydraulic hoisting winch 2
Thrupass 200 mm / 125 mm
Torque / Revolutions 2500 daNm bei 50 rpm
1250 daNm bei 100 rpm
Hydraulische hijslier
Line pull 6000 daNm
Steel cable 100 m ø 10 mm
Lifting speed 0,5 m/sec
Centrifugal mudpump (hydraulically driven)
Rate 105 m³ / hour
Pressure 30 bar
Suction pump (hydraulically driven)
Rate 280 - 320 m³ / hour
Suction height 9 m.w.k.
Compressor (hydraulisch driven)
Rate 8 - 9 m³ / min
Pressure 13 bar
Rotary table unit
Thrupass 420 mm
Torque 4000 daNm
Revolutions 20 rpm

Additional options

  • Different drill head models
  • Larger pull back/pull down power and speed
  • Different types of winches
  • Different lit of spray pump models
  • Other rotary table units
  • Drill pipe manipulation system
  • Percussion device
  • Winch cable push-out arm
  • Crown sheaves construction that can be rotated and extended
  • Mast dump (mast height adjustment)
  • Automatic greasing system
  • Automatically operated drill pipe manipulator
  • Automatically operated restart of drilling process

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Need more information?

Can we help you with more information regarding the Zull 2000 and its capacities? Please contact us at +31 (0)527 69 71 96, fill in the contact form below or download our brochure.

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Conrad Stanen B.V.

Address Escudo 21
8305 BM Emmeloord, NL
Phone +31 (0)527 69 71 96
Fax +31 (0)527 61 0194
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