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.
Drilling methods
The Combi 300 can be fitted out based on customer specifications for one of the drilling methods described below.
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Reverse circulation drillingReverse 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. *
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AirliftThe 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. *
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Straight flush drillingHoles 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. *
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Percussion drillingBy 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.
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Auger drillingBy 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.
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Additional
Other drilling methods such as ‘Down-The-Hole’ drilling, coring and sonic drilling are possible
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.
Specifications
| Option 1 | Dieselmotor P.T.O. 135 kW |
|---|---|
| Option 2 | Dieselmotor P.T.O. 200 kW |
| Length | 7,5 / 8,5 m |
|---|---|
| Max. safe working load | 100 kN |
| Height under crown sheave | 6,8 / 7,8 m |
| Stroke | 5,2 / 6,2 m |
|---|---|
| Pull back | 85 kN |
| Pull down | 45 kN |
| Lifting speed | 0,6 m/sec |
| Thrupass | 125 mm / 150 mm |
|---|---|
| Torque / Revolutions |
500 / 650 daNm @
60 rpm
350 daNm @ 120 rpm |
| Line pull | 1500 daNm |
|---|---|
| Steel cable | 50 m ø 10 mm |
| Lifting speed | 0,5 m/sec |
| Rate | 160 m³ / hour |
|---|---|
| Pressure | 8,5 bar |
| Rate | 280 m³ / hour |
|---|---|
| Suction height | 9 m.w.k. |
| Rate | 5 m³ / min |
|---|---|
| Pressure | 12 bar |
| Thrupass | 320 mm |
|---|---|
| Torque | 1500 daNm |
| Revolutions | 20 rpm |
Additional options
Media repository
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.
