RCH Series Spring Return Single Acting Hollow Plunger Hydraulic Cylinders

The 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, cables, and other components to pass through the center opening, making them ideal for tensioning, тягнути, підйом, пресування, and mechanical maintenance operations.

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

Випускається в ємностях від 13 до 95 тонн, with stroke lengths from 8 до 155 мм and center hole diameters from 19.6 до 79 мм, the RCH Series offers a flexible hydraulic solution for various industrial applications.

---

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

Typical applications include:

• Cable tensioning
• Bolt tensioning
• Shaft pulling
• Component extraction
• Structural adjustment

---

Single Acting Spring Return System

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

Переваги:

• Simple and reliable operation
• Fast piston return
• Reduced hydraulic system complexity
• Improved working efficiency

---

Smooth Saddle Design

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

Переваги:

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

---

Durable Nickel-Plated Floating Center Tube

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

Переваги:

• Improved corrosion resistance
• Reduced wear
• Збільшений термін служби
• Reliable performance under repeated use

---

Corrosion-Resistant Construction

The baked enamel exterior finish provides enhanced protection against corrosion.

Переваги:

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

---

Easy Installation and Fixturing

The collar thread design allows simple installation and secure mounting.

Переваги:

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

---

Технічні характеристики

Specification	Details
Product Type	Single Acting Hollow Plunger Hydraulic Cylinder
Тип повернення	Весняне повернення
Capacity Range	13–95 Ton
Stroke Range	8–155 mm
Максимальний робочий тиск	700 бар
Center Hole Diameter	19.6–79 mm
Plunger Design	Hollow Plunger

---

RCH Series Applications

The LONGLOOD RCH Series cylinders are widely used in:

Промислове обслуговування

• Component removal
• Equipment repair
• Machinery maintenance

Tensioning Applications

• Cable tensioning
• Rod tensioning
• Bolt tensioning

Construction Projects

• Structural adjustment
• Технічне обслуговування мостів
• Installation positioning

Manufacturing Applications

• Pressing operations
• Assembly work
• Fixture applications

Heavy Equipment Service

• Shaft removal
• Mechanical alignment
• Hydraulic maintenance

---

Product Advantages

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.

Тривалий термін служби

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.

---

Правила безпеки

For safe operation:

• Select a cylinder with suitable capacity for the application.
• Never exceed the maximum working pressure of 700 бар.
• Ensure the cylinder is positioned on a stable surface.
• Check the hollow plunger alignment before applying pressure.
• Inspect hoses, couplers, and fittings before use.
• Avoid side loading unless the application allows it.
• Keep the working area clear during operation.
• Wear appropriate protective equipment.

---

Frequently Asked Questions (FAQs)

1. What is a hollow plunger hydraulic cylinder?

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

---

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

---

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

The LONGLOOD RCH Series offers:

• Ємність: 13–95 tons
• Інсульт: 8–155 mm
• Center Hole Diameter: 19.6–79 mm

---

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.

---

5. What is the maximum operating pressure?

The RCH Series is designed for:

700 бар (10,000 psi) maximum operating pressure.

---

6. What applications require hollow plunger cylinders?

Common applications include:

• Cable tensioning
• Bolt tensioning
• Pulling operations
• Shaft extraction
• Structural adjustment
• Industrial maintenance

---

7. What is the purpose of the center hole?

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

8. Are RCH Series cylinders easy to install?

так. 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?

так. LONGLOOD provides OEM and ODM services, including customized capacity, stroke length, center hole dimensions, mounting options, coatings, and branding solutions.

Why Choose LONGLOOD RCH Series Hollow Plunger Cylinders?

The 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, підйом, тягнути, 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.