Mfululizo wa CLL, Mitungi moja ya kaimu ya kaimu ya Hydraulic

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CLL Series Single Acting Lock Nut Hydraulic Cylinders

The LONGLOOD CLL Series Single Acting Lock Nut Hydraulic Cylinders are designed for heavy-duty lifting, nafasi, kusawazisha, and load-holding applications where high capacity, udhibiti sahihi, and long-term mechanical stability are required.

With capacities ranging from 50 kwa 1000 tani, these hydraulic cylinders provide reliable lifting performance for demanding industries including bridge construction, heavy machinery installation, ujenzi wa meli, power plants, steel structures, na matengenezo ya viwanda.

Featuring a mechanical lock nut system, single-acting load return design, na high-strength removable grooved saddles, the CLL Series ensures safe load holding even during extended operations.


CLL Series Hydraulic Cylinder Features

Single-Acting Load Return Design

The single-acting hydraulic system provides efficient lifting performance with reliable load return.

Faida:

  • Simple and dependable operation
  • Reduced system complexity
  • Reliable retraction after lifting
  • Suitable for heavy lifting applications

Safety Lock Nut for Mechanical Load Holding

The integrated lock nut provides positive mechanical support after lifting.

Faida:

  • Maintains load position without continuous hydraulic pressure
  • Improves operational safety
  • Suitable for long-term load holding
  • Reduces hydraulic system stress during extended support

High-Strength Construction

Designed for extreme industrial applications, CLL cylinders feature robust components to withstand heavy loads and demanding environments.

Key advantages:

  • High load-bearing capability
  • Excellent structural strength
  • Reliable performance under repeated lifting cycles
  • Long service life

Mipako Maalum ya Synthetic

The optional special synthetic coating provides:

  • Enhanced corrosion resistance
  • Reduced friction
  • Smoother piston movement
  • Improved durability in harsh environments

Overflow Port as Stroke Limiter

The integrated overflow port helps prevent piston overextension by acting as a stroke limiter.

Faida:

  • Protects internal components
  • Improves operational safety
  • Extends cylinder service life

Interchangeable Hardened Grooved Saddles

All CLL Series cylinders are equipped with bolt-on removable grooved saddles.

Faida:

  • Easy replacement
  • Improved versatility
  • Enhanced load stability
  • Suitable for different lifting applications

CLL Series Specifications

Vipimo Details
Product Type Single Acting Lock Nut Hydraulic Cylinder
Capacity Range 50–1000 Ton
Stroke Range 50–300 mm
Upeo wa Shinikizo la Uendeshaji 700 bar
Return Type Kurudi kwa Mzigo
Locking System Mechanical Lock Nut
Saddle Type Removable Grooved Saddle

Technical Data

Mfano Kiharusi (mm) Eneo la Ufanisi (cm²) Uwezo wa mafuta (cm³) Collapsed Height (mm) Uzito (kilo)
CLL-502 50 70.9 355 164 15
CLL-504 100 70.9 709 214 20
CLL-506 150 70.9 1064 264 25
CLL-508 200 70.9 1418 314 30
CLL-5010 250 70.9 1773 364 35
CLL-5012 300 70.9 2127 414 40
CLL-1002 50 132.7 664 187 30
CLL-1004 100 132.7 1327 237 39
CLL-1006 150 132.7 1991 287 48
CLL-1008 200 132.7 2654 337 56
CLL-10010 250 132.7 3318 387 64
CLL-10012 300 132.7 3981 437 73

(Additional models available up to CLL-1000 ton capacity.)


Heavy-Duty Applications

Bridge Construction and Infrastructure Projects

The LONGLOOD CLL Series cylinders are widely used in large-scale construction projects requiring precise lifting, nafasi, and permanent load support.

Example application:

For a curved bridge project, CLL hydraulic cylinders were used to:

  • Support concrete beams during installation
  • Level bridge pier heads
  • Nafasi 4000-ton slide bearings between the pier and pierhead
  • Precisely adjust bridge alignment
  • Mechanically lock the cylinders after positioning for long-term stability

Other Industrial Applications

CLL Series cylinders are suitable for:

  • Bridge launching and construction
  • Heavy structure lifting
  • Equipment installation
  • Steel structure positioning
  • Shipbuilding projects
  • Power plant maintenance
  • Heavy machinery alignment
  • Foundation leveling
  • Industrial lifting systems
  • Large component positioning

Product Advantages

Extremely High Lifting Capacity

Available up to 1000 tani, providing reliable lifting power for the largest industrial applications.

Safe Mechanical Load Holding

The lock nut system provides additional safety by mechanically supporting the load after lifting.

Precise Positioning Capability

Ideal for applications requiring accurate adjustment, kusawazisha, and controlled movement.

Durable Heavy-Duty Design

Built for demanding environments with high-strength materials and corrosion-resistant protection.

Reduced Hydraulic Load During Long-Term Support

Mechanical locking reduces the need to maintain hydraulic pressure during extended holding periods.

Safety Guidelines

For safe operation:

  • Always confirm cylinder capacity matches the lifting requirement.
  • Ensure the cylinder is placed on a stable and level lifting surface.
  • Inspect hydraulic hoses, fittings, and cylinder components before operation.
  • Never exceed the maximum working pressure of 700 bar.
  • Engage the lock nut properly after reaching the required position.
  • Do not rely solely on hydraulic pressure for long-term load support.
  • Use appropriate safety equipment during lifting operations.

Frequently Asked Questions (FAQs)

1. What is a lock nut hydraulic cylinder?

A lock nut hydraulic cylinder is a heavy-duty hydraulic cylinder equipped with a mechanical locking system that allows the lifted load to be securely held without continuous hydraulic pressure.

2. What is the capacity range of CLL Series cylinders?

The LONGLOOD CLL Series covers capacities from:

50 tani kwa 1000 tani

with stroke options from:

50 mm to 300 mm

3. Why is a lock nut important for hydraulic cylinders?

The lock nut provides mechanical load support after lifting, improving safety and allowing the cylinder to hold heavy loads for extended periods.

4. What industries use CLL Series cylinders?

They are commonly used in:

  • Bridge construction
  • Infrastructure projects
  • Heavy equipment installation
  • Ujenzi wa meli
  • Power plants
  • Steel structure projects

5. Can the cylinder hold a load after hydraulic pressure is released?

Ndiyo. Once the mechanical lock nut is engaged, the cylinder can provide mechanical load holding without depending only on hydraulic pressure.

6. What is the purpose of the grooved saddle?

The grooved saddle improves load stability and allows better contact with lifting points. The removable design makes replacement and customization easier.

7. What is the maximum operating pressure?

The maximum operating pressure of the CLL Series hydraulic cylinders is:

700 bar (10,000 psi)

8. What type of return system does the CLL cylinder use?

The CLL Series uses a single-acting load return system, providing reliable piston return after lifting operations.

9. Can LONGLOOD customize hydraulic cylinders?

Ndiyo. LONGLOOD provides OEM and ODM services, including customized capacity, urefu wa kiharusi, coatings, saddles, connections, and branding.

10. Why choose LONGLOOD CLL Series Hydraulic Cylinders?

The LONGLOOD CLL Series Single Acting Lock Nut Hydraulic Cylinders combine extreme lifting capacity, mechanical safety locking, precision control, and durable construction. They are an ideal solution for heavy lifting, ujenzi wa daraja, and industrial applications requiring maximum reliability and safety.

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