RR Series Long Stroke Double Acting Hydraulic Cylinders

Le LONGLOOD RR Series Long Stroke Double Acting Hydraulic Cylinders are designed for heavy-duty lifting, pousser, tirant, positionnement, and industrial maintenance applications requiring high force output and extended stroke capability.

With capacities ranging from 10 à 520 tonnes and stroke lengths up to 1219 mm, the RR Series provides powerful and precise hydraulic performance for demanding applications such as bridge construction, heavy machinery installation, construction navale, industrial equipment maintenance, and large structure positioning.

Featuring a double-acting hydraulic system, these cylinders provide controlled extension and retraction, ensuring faster operation, improved positioning accuracy, and enhanced productivity.

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RR Series Double Acting Cylinder Features

Double Acting Hydraulic Operation

The double-acting design provides hydraulic power in both directions:

• Hydraulic extension
• Hydraulic retraction

Avantages:

• Faster cycle times
• Precise movement control
• Reliable positioning
• Improved efficiency for repeated operations

Long Stroke Capability

The RR Series is specifically designed for applications requiring extended movement.

Caractéristiques:

• Capacity range: 10–520 ton
• Stroke range: 57–1219 mm
• Maximum operating pressure: 700 bar

The long stroke design makes these cylinders ideal for lifting, pousser, tirant, and positioning large structures.

Easy Fixturing and Installation

The cylinders feature multiple mounting options for convenient installation:

• Fils de collier
• Plunger threads
• Base mounting holes on most models

These mounting features provide flexible installation options for different working conditions.

High Corrosion Resistance

The baked enamel finish protects the cylinder body against corrosion and harsh working environments.

Avantages:

• Improved durability
• Longer service life
• Better protection in industrial applications

Selles durcies amovibles

All cylinders are equipped with removable hardened saddles designed to protect the plunger during lifting and pressing operations.

Avantages:

• Reduces plunger damage
• Improves load distribution
• Easy replacement and maintenance

Soupape de sécurité intégrée

The integrated safety valve helps prevent accidental over-pressurization.

Avantages:

• Enhanced operator safety
• Protects hydraulic components
• Improves system reliability

CR-400 Hydraulic Couplers Included

All RR Series cylinders are supplied with CR-400 couplers, providing:

• Quick hydraulic connection
• Convenient operation
• Improved compatibility with hydraulic systems

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Plunger Wiper Protection

The built-in plunger wiper helps reduce contamination entering the cylinder.

Avantages:

• Protects internal components
• Extends cylinder service life
• Improves reliability in dusty environments

Spécifications techniques

Spécification	Details
Product Type	Long Stroke Double Acting Hydraulic Cylinder
Plage de capacité	10–520 Ton
Stroke Range	57–1219 mm
Pression de fonctionnement maximale	700 bar
Operation Type	Double effet
Return Method	Hydraulic Return
Coupler Type	CR-400
Surface Protection	Baked Enamel Finish
Saddle Type	Removable Hardened Saddle

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RR Series Applications

LONGLOOD RR Series cylinders are widely used in:

Construction de ponts

• Bridge lifting
• Beam positioning
• Structural alignment
• Temporary support systems

Heavy Equipment Installation

• Machinery positioning
• Equipment leveling
• Component alignment

Maintenance Industrielle

• Pressing operations
• Heavy component assembly
• Equipment repair

Shipbuilding and Offshore

• Large structure positioning
• Hydraulic adjustment
• Heavy load handling

Power and Energy Projects

• Generator installation
• Turbine maintenance
• Heavy equipment lifting

Product Advantages

High Force Output

Available up to 520 tonnes, providing powerful hydraulic performance for large-scale applications.

Extended Stroke Range

Long stroke options up to 1219 mm provide greater flexibility for lifting and positioning tasks.

Contrôle hydraulique précis

Double-acting operation allows controlled movement during both extension and retraction.

Reliable Heavy-Duty Construction

Designed for demanding industrial environments with durable materials and protective finishes.

Flexible Installation

Multiple mounting options simplify integration into different hydraulic systems.

Safe Operation

Built-in safety features help protect both equipment and operators.

Consignes de sécurité

For safe operation:

• Always select a cylinder with suitable capacity for the application.
• Ensure the lifting surface is stable and capable of supporting the load.
• Inspect hydraulic hoses, coupleurs, and fittings before use.
• Never exceed the maximum working pressure of 700 bar.
• Ensure saddles are correctly installed before operation.
• Avoid side loading unless the application is specifically designed for it.
• Keep operators away from the lifting area during operation.
• Use appropriate personal protective equipment.

Foire aux questions (FAQ)

1. What is a double acting hydraulic cylinder?

A double acting hydraulic cylinder uses hydraulic pressure to extend and retract the piston, providing controlled movement in both directions.

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

The LONGLOOD RR Series provides:

Capacité: 10–520 tons
Accident vasculaire cérébral: 57–1219 mm

3. What are the advantages of a long stroke hydraulic cylinder?

Long stroke cylinders provide greater movement distance, making them ideal for:

• Large structure lifting
• Heavy equipment positioning
• Bridge construction
• Industrial alignment applications

4. What pressure can the RR Series operate at?

The maximum operating pressure is:

700 bar (10,000 psi)

5. What is the difference between single acting and double acting cylinders?

A single acting cylinder uses hydraulic pressure in one direction and returns by spring or load force, while a double acting cylinder uses hydraulic pressure for both extension and retraction.

6. Why are removable saddles used?

Removable hardened saddles protect the cylinder plunger during lifting and pressing operations and allow easy replacement when needed.

7. What are CR-400 couplers used for?

CR-400 couplers provide quick and secure hydraulic connections between the cylinder and hydraulic pump system.

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8. Can RR Series cylinders be customized?

Oui. LONGLOOD provides OEM and ODM services including customized stroke lengths, capacités, mounting options, coatings, saddles, and hydraulic connections.

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9. What industries use long stroke hydraulic cylinders?

They are widely used in:

• Construction
• Construction navale
• Heavy machinery
• Power generation
• Industrial manufacturing
• Infrastructure projects

10. Why choose LONGLOOD RR Series Long Stroke Hydraulic Cylinders?

Le LONGLOOD RR Series Long Stroke Double Acting Hydraulic Cylinders combine high capacity, extended stroke capability, precise hydraulic control, and durable construction. They provide a reliable solution for demanding lifting, pousser, tirant, and positioning applications across heavy industries.

Application de vérin à double effet: