CLL Series Single Acting Lock Nut Hydraulic Cylinders

De LONGLOOD CLL Series Single Acting Lock Nut Hydraulic Cylinders er designet for tunge løft, posisjonering, utjevning, and load-holding applications where høy kapasitet, presis kontroll, and long-term mechanical stability are required.

Med kapasiteter som spenner fra 50 til 1000 tonn, these hydraulic cylinders provide reliable lifting performance for demanding industries including bridge construction, heavy machinery installation, skipsbygging, kraftverk, stålkonstruksjoner, og industrielt vedlikehold.

Med en mechanical lock nut system, enkeltvirkende lastreturdesign, og high-strength removable grooved saddles, the CLL Series ensures safe load holding even during extended operations.

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CLL Series Hydraulic Cylinder Features

Single-Acting Load Return Design

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

Fordeler:

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

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Safety Lock Nut for Mechanical Load Holding

The integrated lock nut provides positive mechanical support after lifting.

Fordeler:

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

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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
• Lang levetid

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Spesielt syntetisk belegg

The optional special synthetic coating provides:

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

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Overflow Port as Stroke Limiter

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

Fordeler:

• Beskytter interne komponenter
• Forbedrer driftssikkerheten
• Forlenger levetiden til sylinderen

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Interchangeable Hardened Grooved Saddles

All CLL Series cylinders are equipped with bolt-på avtagbare rillede saler.

Fordeler:

• Easy replacement
• Forbedret allsidighet
• Enhanced load stability
• Suitable for different lifting applications

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CLL Series Specifications

Spesifikasjon	Detaljer
Produkttype	Enkeltvirkende låsemutter hydraulisk sylinder
Kapasitet Range	50–1000 Ton
Slagområde	50–300 mm
Maksimalt driftstrykk	700 bar
Returtype	Last retur
Låsesystem	Mekanisk låsemutter
Saddle Type	Removable Grooved Saddle

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Tekniske data

Modell	Slag (mm)	Effektivt område (cm²)	Oljekapasitet (cm³)	Samlet høyde (mm)	Vekt (kg)
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.)

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Heavy-Duty Applications

Bridge Construction and Infrastructure Projects

The LONGLOOD CLL Series cylinders are widely used in large-scale construction projects requiring precise lifting, posisjonering, 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
• Posisjon 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
• Installasjon av utstyr
• Plassering av stålkonstruksjon
• Shipbuilding projects
• Vedlikehold av kraftverk
• Heavy machinery alignment
• Foundation leveling
• Industrial lifting systems
• Large component positioning

Produktfordeler

Extremely High Lifting Capacity

Available up to 1000 tonn, 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, utjevning, og kontrollert bevegelse.

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.

Sikkerhetsretningslinjer

For sikker drift:

• Always confirm cylinder capacity matches the lifting requirement.
• Ensure the cylinder is placed on a stable and level lifting surface.
• Inspiser hydraulikkslanger, beslag, 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.

Ofte stilte spørsmål (Vanlige spørsmål)

1. Hva er en låsemutter hydraulisk sylinder?

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 tonn til 1000 tonn

with stroke options from:

50 mm til 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?

De brukes ofte i:

• Brokonstruksjon
• Infrastructure projects
• Heavy equipment installation
• Skipsbygging
• Kraftverk
• Steel structure projects

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

Ja. 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. Hva er maksimalt driftstrykk?

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?

Ja. LONGLOOD provides OEM and ODM services, including customized capacity, slaglengde, belegg, saddles, forbindelser, and branding.

10. Why choose LONGLOOD CLL Series Hydraulic Cylinders?

De LONGLOOD CLL Series Single Acting Lock Nut Hydraulic Cylinders combine extreme lifting capacity, mechanical safety locking, presisjonskontroll, and durable construction. They are an ideal solution for heavy lifting, brokonstruksjon, and industrial applications requiring maximum reliability and safety.