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CLL70-50 Hollow hydraulic cylinder with lock nut
CLL70-50 Hollow hydraulic cylinder with lock nut is used for heavy-duty lifting, pulling, tensioning, and long-term load holding. Ideal for prestressing, bridge construction, structural repair, and industrial maintenance applications.
CLL70-50
70ton(697kn)
22ton (216kn)
50mm
361mm
180mm
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Description
CLL70-50 Hollow hydraulic cylinder with lock nut is designed for heavy-duty push, pull, lift, and tension applications. Its central through-hole design allows reinforcing bars, steel bars, threaded rods, anchor bolts, or steel strands to pass through the jack body, making it an ideal solution for prestressing, bridge construction, structural reinforcement, and industrial maintenance.
Manufactured to meet demanding industrial requirements, this compact and robust jack operates reliably even in harsh working environments. The double-acting hydraulic design ensures smooth extension and retraction, providing greater efficiency, enhanced safety, superior durability, and precise hydraulic control.
Manufactured to meet demanding industrial requirements, this compact and robust jack operates reliably even in harsh working environments. The double-acting hydraulic design ensures smooth extension and retraction, providing greater efficiency, enhanced safety, superior durability, and precise hydraulic control.
Application
1. Bridge construction and maintenance
2. Prestressing and post-tensioning projects
3. Foundation reinforcement
4. Steel structure installation
5. Tunnel and railway engineering
6. Shipbuilding and offshore engineering
7. Heavy machinery maintenance
8. Anchor bolt tensioning
9. Threaded rod pulling
10. Industrial lifting and positioning
Features
1. Push capacity: 697 kN at 700 bar
2. Pull capacity: 216 kN at 350 bar
3. Standard stroke: 50 mm
4. Test pressure: 875 bar push / 440 bar pull
5. Hollow bore for tendons, strands, rods, bolts, and bars
6. Square flange base for fixed or 45° mounting
7. Integrated safety valve for overpressure protection
8. Hard-chromed plunger with NBR/Ecopur wear-resistant seals
9. Compact 52 kg design for easy site handling
2. Pull capacity: 216 kN at 350 bar
3. Standard stroke: 50 mm
4. Test pressure: 875 bar push / 440 bar pull
5. Hollow bore for tendons, strands, rods, bolts, and bars
6. Square flange base for fixed or 45° mounting
7. Integrated safety valve for overpressure protection
8. Hard-chromed plunger with NBR/Ecopur wear-resistant seals
9. Compact 52 kg design for easy site handling
Product Details
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Lock nut hydraulic cylinder drawing
Technical Parameters
Technical Data
| Model | CLL70-50 |
| Capacity push | 70ton(697kn) |
| Capacity pull | 22ton (216kn) |
| Stroke | 50mm |
| Closed height | 361mm |
| Outlet diameter | 180mm |
| Piston area push | 99.5cm2 |
| piston area pull | 61.9cm2 |
| Rated pressure | 70Mpa |
| Flange plate（Customized） | 210x250x20mm |
| Weight | 52kgs |
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