RCH Series Spring Return Single Acting Hollow Plunger Hydraulic Cylinders

'Ōlelo LONGLOOD RCH Series Spring Return Single Acting Hollow Plunger Hydraulic Cylinders are designed for professional applications requiring reliable push and pull hydraulic force in a compact and versatile cylinder design.

With a hollow plunger structure, these cylinders allow rods, uwea, and other components to pass through the center opening, making them ideal for tensioning, hāwana, hāpai ʻana, pressing, and mechanical maintenance operations.

The RCH Series combines a single-acting spring return system, kūkulu paʻa, and corrosion-resistant protection to provide dependable performance in demanding industrial environments.

Available in capacities from 13 i 95 mau tona, with stroke lengths from 8 i 155 mm and center hole diameters from 19.6 i 79 mm, the RCH Series offers a flexible hydraulic solution for various industrial applications.

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RCH Series Hollow Plunger Cylinder Features

Hollow Plunger Design for Push and Pull Applications

The unique hollow plunger design allows the cylinder to perform both pushing and pulling operations.

Key benefits:

• Suitable for tensioning applications
• Allows rods and cables to pass through the center hole
• Supports both compression and pulling forces
• Provides greater flexibility compared with standard cylinders

Loaʻa nā noi maʻamau:

• Hoʻopaʻa uwea
• ʻO ka hoʻopaʻapaʻa ʻana
• Huki lāʻau
• Component extraction
• Hoʻoponopono hoʻoponopono

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Single Acting Spring Return System

The RCH Series uses hydraulic pressure for extension and an internal spring mechanism for automatic return.

Loaʻa:

• Hana maʻalahi a hilinaʻi
• Fast piston return
• Reduced hydraulic system complexity
• Improved working efficiency

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Smooth Saddle Design

Most RCH Series cylinders are equipped with smooth saddles to provide stable contact during operation.

KA MANAWA:

• Protects the plunger surface
• Improves load distribution
• Provides stable lifting support
• Reduces wear during operation

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Durable Nickel-Plated Floating Center Tube

Models above 20 tons feature a nickel-plated floating center tube designed to increase product durability.

Loaʻa:

• Improved corrosion resistance
• Reduced wear
• Extended service life
• Reliable performance under repeated use

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Corrosion-Resistant Construction

The baked enamel exterior finish provides enhanced protection against corrosion.

KA MANAWA:

• Suitable for industrial environments
• Improves durability
• Helps maintain long-term performance

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Easy Installation and Fixturing

The collar thread design allows simple installation and secure mounting.

Loaʻa:

• Easy fixture integration
• Improved positioning stability
• Convenient setup for different applications

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Nā kiko pili Tech

Hōʻike	Nā kikoʻī
ʻAno Huahana	Single Acting Hollow Plunger Hydraulic Cylinder
Return Type	Hoʻi Puna
Kaulana Hiki	13–95 Ton
Lāʻau Kaʻi	8–155 mm
ʻO ke kaomi hana kiʻekiʻe loa	700 Bar
Center Hole Diameter	19.6–79 mm
Plunger Design	Hollow Plunger

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RCH Series Applications

The LONGLOOD RCH Series cylinders are widely used in:

Malama Hana Hana

• Component removal
• Hoʻoponopono lako
• Machinery maintenance

Tensioning Applications

• Hoʻopaʻa uwea
• Rod tensioning
• ʻO ka hoʻopaʻapaʻa ʻana

Construction Projects

• Hoʻoponopono hoʻoponopono
• Bridge maintenance
• Installation positioning

Manufacturing Applications

• Pressing operations
• Assembly work
• Fixture applications

Heavy Equipment Service

• Shaft removal
• Mechanical alignment
• Hydraulic maintenance

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Nā Pono Huahana

Push and Pull Capability

The hollow plunger design provides both pushing and pulling functionality, making it suitable for complex hydraulic tasks.

Compact and Flexible Design

The compact structure allows installation in limited working spaces.

Reliable Automatic Return

The spring return system provides efficient operation without requiring hydraulic retraction.

Ola Hana lōʻihi

High-quality materials, nickel-plated components, and protective coatings ensure durability.

Wide Application Range

Multiple capacities and stroke options allow users to select the right cylinder for different projects.

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Nā Kūlana Palekana

No ka hana palekana:

• Select a cylinder with suitable capacity for the application.
• Never exceed the maximum working pressure of 700 Bar.
• Ensure the cylinder is positioned on a stable surface.
• Check the hollow plunger alignment before applying pressure.
• Inspect hoses, mea hui, a me nā mea pono ma mua o ka hoʻohana ʻana.
• Avoid side loading unless the application allows it.
• Keep the working area clear during operation.
• Wear appropriate protective equipment.

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Nīnau pinepine (FAQs)

1. What is a hollow plunger hydraulic cylinder?

A hollow plunger hydraulic cylinder has a central opening through the piston, allowing rods, uwea, or other components to pass through while applying hydraulic force.

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2. What are the advantages of the RCH hollow plunger design?

The hollow plunger design allows:

• Push and pull operations
• Through-hole applications
• Tensioning work
• Greater installation flexibility

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3. What is the capacity range of the RCH Series?

The LONGLOOD RCH Series offers:

• Hiki: 13–95 tons
• Kaʻi ʻana: 8–155 mm
• Center Hole Diameter: 19.6–79 mm

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4. How does the spring return system work?

The cylinder extends when hydraulic pressure is applied. When pressure is released, the internal spring automatically retracts the plunger.

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5. He aha ke kaomi hana kiʻekiʻe loa?

The RCH Series is designed for:

700 Bar (10,000 Psi) maximum operating pressure.

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6. What applications require hollow plunger cylinders?

Common applications include:

• Hoʻopaʻa uwea
• ʻO ka hoʻopaʻapaʻa ʻana
• Pulling operations
• ʻOhi lāʻau
• Hoʻoponopono hoʻoponopono
• Industrial maintenance

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7. What is the purpose of the center hole?

The center hole allows rods, uwea, or other components to pass through the cylinder, enabling pulling and tensioning operations.

8. Are RCH Series cylinders easy to install?

ʻAe. Collar threads allow simple mounting and secure fixture installation.

9. What is the difference between a hollow plunger cylinder and a standard hydraulic cylinder?

A standard cylinder mainly provides pushing force, while a hollow plunger cylinder can perform both pushing and pulling operations through its center opening.

10. Can LONGLOOD customize RCH Series cylinders?

ʻAe. Hāʻawi ʻo LONGLOOD i nā lawelawe OEM a me ODM, including customized capacity, stroke length, center hole dimensions, mounting options, nā uhi, and branding solutions.

Why Choose LONGLOOD RCH Series Hollow Plunger Cylinders?

'Ōlelo LONGLOOD RCH Series Spring Return Single Acting Hollow Plunger Hydraulic Cylinders combine compact design, push-pull capability, reliable spring return operation, and durable construction. They are an excellent choice for professional users requiring versatile hydraulic solutions for tensioning, hāpai ʻana, hāwana, and maintenance applications.

Application of RCH-1003 Hollow Plunger Cylinder:

The RCH-1003 hollow plunger cylinder is used for intermediate boom suspension on a dragline.