MK 1000 Power Swivel
The Dando MK 1000 is fitted with a twin worm and single wheel gear totally enclosed in an oil bath case.
This power swivel incorporates a 150mm I.D hollow spindle which is mounted on taper roller bearings and is powered by twin piston motors providing controlled rotation and torque in forward and reverse.
*Please request a copy of our terms and conditions if required.
- Hydraulic piston and gear motor options available
- A choice of different ratio’s to suit your drilling requirements
- Can be easily mounted on-board drilling vessels and onshore rigs.
- Robust twin wormshaft and single gear wheel arrangement.
- Simple to maintain
- 40 Ton loading capacity
- Technical support available to advise of the correct hydraulic system suitable for the speed and torque needed.
| Estimated Weight: 630 kg |
| Gear Oil: 18 litres EP Gear Oil Grade 80/90 |
| Hydraulic Oil: Shell Tellus 46 or equivalent |
| Maximum Pullback: 40,000 kg |
| Estimated Shipping Dimensions: 1m x 1m x 0.8m |
With reference to our 40+ton rigs, Dando Drilling use a valve with a 140 /Lt slice (i.e.70lt motor) and pressure at 315 bar (4568 PSI). Based on this and with a hydraulic piston motor you will see the following speed and torque:
20:1 Ratio
High torque mode
Torque = 15398 Nm (11317 Lb/ft) @ 43 RPM
High speed mode
Torque = 3850 Nm (2830 Lb/ft) @ 175 RPM
12 ½:1 Ratio
High torque mode
Torque = 9624 Nm (7073 Lb/ft) @ 70 RPM
High speed mode
Torque = 2406 Nm (1768 Lb/ft) @ 280 RPM
Please note: These are the results when fitted to a Dando type circuit and not the actual performance that the Rotary head and hydraulic motors are capable of. The piston motor can run with a pressure of 420 bar (6090PSI) and an RPM of 5000, therefore results will vary depending on your hydraulic capability.
The torque advised below is a max because of the pressure limitation of each motor and the speed is based on 140 Lt.
20:1 Ratio
High torque mode
Torque = 18984 Nm (14000 Lb/ft) @ 15 RPM
High speed mode
Torque = 9492 Nm (7000 Lb/ft) @ 30 RPM
12 ½:1 Ratio
High torque mode
Torque = 12373 Nm (9125 Lb/ft) @ 25 RPM High speed mode:-
Torque = 6186 Nm (4562 Lb/ft) @ 280 RPM
Please note: The 3” Gear motor is limited to 2500psi and is approximately 0.2245 Lt/ rev. The motor is capable of 2000 RPM @ 365 Lt/min and performance can vary infinitely depending on the hydraulic supply system. The above speeds and torque figures are based on these details.
