Power Cylinder Worm Series
- Worm series is the perfect power cylinder to replace hydraulic cylinders.
- Worm Series LPWB provides large thrust by using a high precision worm gear and a highly efficient ball screw manufactured with technology based on nearly a century of manufacturing tradition.
- Allowable Thrust :49~490kN
- Nominal Speed :5~72mm/s
Features
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・Clean
There are no hydraulic pumps or pipes, so no worries about oil leakage from the connecting parts.
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・Easy installation
No need for hydraulic pumps and pipes. Can be operated just by connecting a three-phase power source.
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・Accurate control
Changing speeds and accurate positioning are possible by using an inverter.
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・Low cost
Reduces costs by significantly reducing the number of parts.
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・High load capacity
Can be used with large loads like jacks can thanks to its special steel alloy. (The maximum load capacity is 50t in the large thrust zone. )
Compact shape that is substantially closer to hydraulic cylinders
- ・Uses a Tsubaki high precision worm gear for the reducer, and it incorporates a support structure for the ball screw and gear.
- ・The total length of the unit can be significantly reduced since there is no need for a bracket unlike with traditional power cylinders.
- ・Main unit mounts with clevises on both ends, which is the most popular method for mounting hydraulic cylinders.
Easy installation due to no need for pumps and pipes
Hydraulic cylinder
Power Cylinder Worm Series
Can operate just by connecting to a power source.
Simplified thrust calculation for hydraulic cylinders
-
Tsubaki has posted a calculation formula online to convert hydraulic cylinder output to power cylinder approximate thrust.
Options
・L:External stroke adjusting limit switch (2)
・R:Rotary encoder
・Y:Counter LS *1
・C:Clevis mounting adapter
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・K2, K4:Comes with internal limit switches for adjusting the stroke length.
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・J:With Bellows *2
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・P:Potentiometer
・Unit can now use a clevis and position detection unit in combination, which was impossible with previous Power Cylinders.
Power Cylinder Worm Series
- *1 K2, K4, P, and R cannot be used if there is a counter limit switch.
- *2 The stroke does not change.
Model No. examples
LPW | B | 5000 | DR | 10 | □□C |
| Series |
| Screw type |
| Allowable Thrust |
| Main Body Code |
| Stroke |
| Options |
Power Cylinder Worm Series |
B:Ball screw | Right angled | 2:200mm 5:500mm 10:1000mm |
List of Model Numbers
Model No. | Allowable Thrust *1 | Motor Capacity kW |
Reference dimensional drawings | Rated Thrust *2 (Thrust differs by speed ratio ) |
Speed mm/s |
Nominal Stroke mm |
Motor Specifications | ||
---|---|---|---|---|---|---|---|---|---|
kN | {kgf} | kN | {kgf} | ||||||
LPWB5000 | 49 | 5000 | 0.4 | 0.98~28.4 | 100~2900 | 24~5 | 200~1000 | With non-excitation type brake Three-phase dielectric motor IP55 equivalent |
|
0.75 | 3.92~49.0 | 400~5000 | 36~5 | ||||||
1.5 | 18.6~49.0 | 1900~5000 | 36~5 | ||||||
LPWB10000 | 98 | 10000 | 0.75 | 3.92~38.2 | 400~3900 | 20~6.6 | 500~1500 | ||
1.5 | 1.96~96.0 | 200~9800 | 48~6.6 | ||||||
2.2 | 11.7~98.0 | 1200~10000 | 48~6.6 | ||||||
3.7 | 33.3~98.0 | 3400~10000 | 48~6.6 | ||||||
LPWB20000 | 196 | 20000 | 3.7 | 3.92~196 | 400~20000 | 72~10 | 500~2000 | ||
5.5 | 25.4~196 | 2600~20000 | 72~10 | ||||||
7.5 | 49.0~196 | 5000~20000 | 72~10 | ||||||
LPWB30000 | 294 | 30000 | 5.5 | 5.88~294 | 600~30000 | 72~10 | 500~2000 | ||
7.5 | 30.3~294 | 3100~30000 | 72~10 | ||||||
11 | 71.5~294 | 7300~30000 | 72~10 |
- ※Allowable thrust is the maximum allowable load of the cylinder.
- ※Generated thrust is the thrust converted from the motor rated torque.
- ※With inverter drives, you will need to confirm generated thrust.
- ※Generated capacity in the above specification list is with a motor time rating of S2:30min and duty factor of 25%ED.
- The motor size can be reduced with low frequency operation.
- ※Models exceeding 294kN(30000kgf) and special combinations are also available in addition to the specifications listed above.
- ※The drawing is a reference drawing. Dimensions will differ depending on the detailed specifications.
- ※Contact a Tsubaki representative for more information.