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The ROTAFLEX pumping units take full advantages of all
pumping units by years of research and development. As a
unique engineering breakthrough, the 100% mechanical
ROTAFLEX is especially suitable for producing high volume
fluid
，viscous
oil, in deep wells with rod pump. We had developed to seven
types. Lots of products had been exported to America,
Argentina, Kazakhstan, Uzbekistan, Indonesia and other
countries in addition to using well in Shengli, Daqing,
Liaohe etc., and almost every big oilfield in China. The
advantages are high efficiency, reliability and energy
saving.
MAIN ADVANTAGES
1. Slow, Long Strokes
Long stroke leads to more complete barrel filling, less
fluid pounding. Slow period means less wear on downhole
equipment and less direction reverse. The operational cost
is reduced.
2. Belt Transmission
A long life heavy duty belt transmission can absorb the
shock during stroke reverse, thus effectively reducing the
stress on downhole components, and rod strings run
uniformly.
3. Low Torque Demand
The torque arm is only 0.46m, so the torque demand is
greatly reduced, thereby, smaller prime mover and gear box
maybe possible. Comparing to other artificial lift system,
ROTAFLEX can cut down energy costs by 10% to 40%.
4. Optimum Structure Design, Safety and Convenience
Automatically braking equipment and two sets of brake
systems (mechanical & gas) promise the unit absolutely
safety. Enclosed unit design makes the unit convenience in
shipping and workover, and safety also.
5. High Reliability and Low Maintenance
High reliability by using antifriction bearings, heavy duty
belt, heavy load sleeve roller chains, mechanical balance
and self-protection, carrying load evenly and perfect
rigidity through optimum design.
SPECIFICATIONS
|
Type
SPECIFICATIONS |
1100 |
1000 |
900 |
800 |
700 |
600 |
500 |
|
Stroke Length m
|
7.8 |
8 |
7.3 |
7.0 |
6.0 |
5.0 |
4.5 |
|
Peak Polished Rod Load MT
|
22.7 |
20 |
16.3 |
14 |
12 |
10 |
8 |
|
min-1
Max of Strokes Per Minute |
4 |
4 |
4 |
4 |
4 |
5 |
5 |
|
min-1
Min of Strokes Per Minute |
Very Low |
|
Counterweight Base MT
|
6.1 |
4.6 |
4.2 |
2.7 |
2.4 |
1.9 |
1.7 |
|
Counterweight-Max
Aux. MT |
8.6 |
9.0 |
7.2 |
7.1 |
6.4 |
4.8 |
3.5 |
|
Shipping Weight MT |
26.5 |
22 |
19.5 |
16.5 |
15.5 |
12.0 |
11.0 |
|
External Size(L×W×H) |
7.4×2.6
×12.8 |
7.4x2.4
x13.4 |
6.6×2.4
×12.4 |
6.1×2.1
×11.8 |
5.5×2.1
×10.8 |
5.5×1.9
×8.9 |
5.2×1.9
×8.2 |
|
Shipping Size(L×W×H) |
12.8×2.6
×3.1 |
2.8x2.4
x13.4 |
12.4×2.4
2.8 |
11.8×2.1
×2.6 |
10.8×2.1
×2.5 |
8.9×1.9
×2.5 |
8.2×1.9
×2.5 |
|
Motor power KW |
75 |
75 |
55 |
45 |
37 |
22 |
18.5 |
|
Torque of Gearbox kN·m
|
37 |
37 |
37 |
26 |
26 |
18 |
13 |
|
Working Temperature |
-40℃~-50℃ |
|
Electromagnetism
Automatic Braking
System |
Yes |
Yes |
Yes |
Yes |
Yes |
N/A |
N/A |
|
Note: Automatic Braking System is available
according to the customer’s requirements. |
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