Overview

The Conrad Combi 300 is a combination drilling rig that is already often mounted on truck chassis or a crawler truck. Many wish to use this model on which the different drilling systems can be integrated jointly. The Combi 300 can be very broadly deployed due to its multifunctionality.

The Combi 300 can be perfectly fitted out with specifically one drilling principle where modern techniques such as drill pipe manipulation, automatic insertion and extraction of drill pipes, having an automatic drilling process, etc., can be perfectly integrated. All drilling functions and driving the rig through remote radio control are part of the standard options. The Combi 300 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.

Combi 300
Combi 300

Drilling methods

The Combi 300 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. 800 mm. *

  • Tool
    Airlift

    The airlift drilling principle by using a compressor is the appropriate method to continue the reverse circulation drilling with a hole diameter of approx. 800 mm to a depth of 225 metres. *

  • Tool
    Straight flush drilling

    Holes with a diameter of approx. 300 mm can be continued up to a depth of 275 metres by using a water, mud or foam circulation system with this drilling method. *

  • Tool
    Percussion drilling

    By equipping the Combi 300 with a rotary table and a stroke mechanism, percussion drilling is possible up to a depth of at least 100 metres with a max. casing diameter of 320 mm.

  • Tool
    Auger drilling

    By equipping the Combi 300 with a rotary table and a stroke mechanism, percussion drilling is possible up to a depth of at least 100 metres with a max. casing diameter of 320 mm.

  • Tool

    Additional

    Other drilling methods such as ‘Down-The-Hole’ drilling, coring and sonic drilling are possible

* 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 Combi 300

Specifications



Power
Option 1 Dieselmotor P.T.O. 135 kW
Option 2 Dieselmotor P.T.O. 200 kW
Drillmast
Length 7,5 / 8,5 m
Max. safe working load 100 kN
Height under crown sheave 6,8 / 7,8 m
Pull back / Pull down systeem through hydraulic cylinder and steel cables
Stroke 5,2 / 6,2 m
Pull back 85 kN
Pull down 45 kN
Lifting speed 0,6 m/sec
Hydraulic hoisting winch
Thrupass 125 mm / 150 mm
Torque / Revolutions 500 / 650 daNm bei 60 rpm
350 daNm bei 120 rpm
Hydraulische hijslier
Line pull 1500 daNm
Steel cable 50 m ø 10 mm
Lifting speed 0,5 m/sec
Centrifugal mudpump (hydraulically driven)
Rate 160 m³ / hour
Pressure 8,5 bar
Suction pump (hydraulically driven)
Rate 280 m³ / hour
Suction height 9 m.w.k.
Compressor (hydraulisch driven)
Rate 5 m³ / min
Pressure 12 bar
Rotary table unit
Thrupass 320 mm
Torque 1500 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 Combi 300 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
E-Mail info@conrad-stanen.nl
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