RRH Series Double Acting Hollow Plunger Hydraulic Cylinders

Tus LONGLOOD RRH Series Double Acting Hollow Plunger Hydraulic Cylinders are specially designed for applications requiring both push and pull hydraulic force. Featuring a hollow plunger design, these cylinders provide excellent versatility for tensioning, nqa, rub, and pressing operations.

Nrog lub peev xwm los ntawm 30 rau 145 tons, stroke xaiv los ntawm 38 rau 258 mm, thiab lub siab tshaj plaws kev khiav hauj lwm siab ntawm 700 bar, the RRH Series delivers powerful and reliable hydraulic performance for industrial maintenance, kev tsim kho, and heavy-duty applications.

Tus double-acting hydraulic system enables fast and controlled retraction, while the durable nickel-plated floating center tube and corrosion-resistant finish ensure long service life in demanding environments.

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RRH Series Hollow Plunger Cylinder Features

Hollow Plunger Design for Push and Pull Applications

The hollow plunger allows hydraulic force to be applied in both pushing and pulling operations.

Qhov zoo:

• Supports tensioning and lifting applications
• Suitable for through-hole applications
• Provides greater application flexibility
• Ideal for pulling rods, kab, and shafts

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Double Acting Hydraulic Operation

The double-acting design provides hydraulic control during both extension and retraction.

Cov txiaj ntsig:

• Fast piston return
• Improved operation efficiency
• Precise movement control
• Reduced downtime between cycles

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High Capacity Performance

The RRH Series provides reliable hydraulic force for demanding applications.

Cov lus qhia:

• Peev Xwm Ntau: 30–145 ton
• Stroke Range: 38–258 mm
• Kev ua haujlwm siab tshaj plaws: 700 bar

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Built-In Relief Valves

Integrated relief valves help protect the cylinder from accidental over-pressurization.

Cov txiaj ntsig:

• Tiv thaiv cov khoom siv sab hauv
• Txhim kho kev ua haujlwm kev nyab xeeb
• Extens lub tog raj kheej kev pab cuam lub neej

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Corrosion Resistant Construction

The baked enamel finish provides enhanced protection against corrosion and harsh working conditions.

Qhov zoo:

• Improved durability
• Lub neej ua haujlwm ntev dua
• Suitable for industrial environments

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Easy Installation with Collar Threads

The collar thread design allows straightforward installation and integration into different fixtures.

Tsab ntawv: Collar threads are not applicable for:

• NRH-1001
• TIAB SA-1508

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Durable Nickel-Plated Floating Center Tube

The nickel-plated floating center tube improves durability and reduces wear during operation.

Cov txiaj ntsig:

• Increased product lifespan
• Better resistance to corrosion
• Improved reliability under repeated use

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Plunger Wiper Tiv Thaiv

The integrated plunger wiper reduces contamination entering the cylinder.

Qhov zoo:

• Tiv thaiv cov khoom siv sab hauv
• Reduces maintenance requirements
• Extens lub tog raj kheej kev pab cuam lub neej

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Complete Accessories Included

All RRH Series cylinders include:

• CR-400 hydraulic coupler
• Dust cap

Providing convenient connection and protection during storage and transportation.

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Technical Specifications

Specification	Paub meej
Yam khoom	Double Acting Hollow Plunger Hydraulic Cylinder
Peev Xwm Ntau	30–145 Ton
Stroke Range	38–258 mm
Kev ua haujlwm siab tshaj plaws	700 bar
Hom kev ua haujlwm	Ob chav ua yeeb yam
Plunger Design	Hollow Plunger
Coupler Type	CR-400
Surface Protection	Baked Enamel Finish

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RRH Series Applications

LONGLOOD Hollow Plunger Cylinders are widely used in:

Tensioning Applications

• Cable tensioning
• Rod tensioning
• Bolt tensioning
• Kev kho tus qauv

Kev Kho Vaj Tse

• Equipment alignment
• Component removal
• Heavy machinery repair

Construction Projects

• Structural lifting
• Kev tu choj
• Installation positioning

Manufacturing Applications

• Pressing operations
• Assembly work
• Fixture positioning

Heavy Equipment Service

• Machinery repair
• Shaft extraction
• Component adjustment

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Khoom zoo

Push and Pull Capability

The hollow plunger design allows both compression and tension operations, making one cylinder suitable for multiple applications.

Fast Hydraulic Retraction

The double-acting system provides quick return movement, improving productivity.

Reliable Industrial Performance

High-quality materials and protective finishes ensure long-lasting performance in demanding environments.

Flexible Installation

Collar threads and compact design simplify mounting and integration.

Enhanced Safety

Relief valves and durable construction provide safer operation under high-pressure conditions.

Cov Lus Qhia Txog Kev Nyab Xeeb

For safe operation:

• Confirm cylinder capacity matches the required load.
• Inspect couplers, cov kav dej, and fittings before operation.
• Never exceed the maximum pressure rating of 700 bar.
• Ensure the hollow plunger is properly aligned before applying force.
• Avoid side loading unless specifically designed for the application.
• Keep the working area clear during operation.
• Use appropriate personal protective equipment.

Frequently Asked Questions (FAQs)

1. What is a hollow plunger hydraulic cylinder?

A hollow plunger hydraulic cylinder is designed with a center opening through the piston, allowing it to perform both pushing and pulling operations using rods, kab, los yog lwm yam khoom.

2. What are the advantages of a double acting hollow cylinder?

A double acting hollow cylinder provides hydraulic control for both extension and retraction, allowing faster operation and better positioning control.

3. What capacity range does the RRH Series offer?

The LONGLOOD RRH Series provides:

• Muaj peev xwm: 30–145 tons
• Mob stroke: 38–258 mm

4. What applications require hollow plunger cylinders?

They are commonly used for:

• Cable tensioning
• Bolt tensioning
• Pulling operations
• Shaft removal
• Kev kho tus qauv
• Heavy equipment maintenance

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5. What is the maximum operating pressure?

The RRH Series operates at:

700 bar (10,000 psi) maximum pressure.

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6. Why is a hollow plunger design useful?

The hollow plunger allows components such as rods and cables to pass through the cylinder, enabling applications that standard solid cylinders cannot perform.

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7. What accessories are included with the cylinder?

Each RRH Series cylinder includes:

• CR-400 coupler
• Dust cap

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8. What is the purpose of the relief valve?

The relief valve protects the cylinder from damage caused by excessive hydraulic pressure.

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9. Are RRH Series cylinders suitable for industrial use?

Yog lawm. They are designed for professional applications including construction, kev saib xyuas, kev tsim khoom, and heavy equipment servicing.

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10. Can LONGLOOD customize hollow plunger cylinders?

Yog lawm. LONGLOOD provides OEM and ODM services including customized capacities, mob stroke, mounting options, hydraulic connections, coatings, and branding solutions.

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Why Choose LONGLOOD RRH Series Hollow Plunger Hydraulic Cylinders?

Tus LONGLOOD RRH Series Double Acting Hollow Plunger Hydraulic Cylinders combine powerful push-pull capability, fast hydraulic retraction, durable construction, and reliable safety features. They provide a versatile hydraulic solution for demanding tensioning, nqa, rub, and industrial maintenance applications.

Daim ntawv thov Hollow Plunger Lub tog raj kheej: