**Double-Acting Relief Valves Compact Hydraulic Hollow Plunger Cylinder**

Double Acting Relief Valves Compact Hydraulic Hollow Plunger Cylinder
Double Acting Relief Valves Compact Hydraulic Hollow Plunger Cylinder
Double Acting Relief Valves Compact Hydraulic Hollow Plunger Cylinder
Double Acting Relief Valves Compact Hydraulic Hollow Plunger Cylinder
Double Acting Relief Valves Compact Hydraulic Hollow Plunger Cylinder
Double Acting Relief Valves Compact Hydraulic Hollow Plunger Cylinder

**Key Features:**

1. The hollow plunger design enables both pulling and pushing forces, making it versatile for multiple applications.

2. Integrated relief valves protect the cylinder from overpressure damage, ensuring long-term durability.

3. Baked enamel finish enhances corrosion resistance, suitable for harsh environments.

4. Collar threads allow for easy installation (except for models RRH-1001 and RRH-1508).

5. Double-acting operation allows for fast hydraulic retraction, improving efficiency.

6. Nickel-plated floating center tube increases product lifespan and performance.

7. Plunger wiper minimizes contamination, helping to extend the life of the cylinder.

8. All models come with a CR 400 coupler and dust cap for added protection.


**Applications:**

This range of hydraulic cylinders is widely used in industrial sectors such as steel plants, cement production, chemical processing, refineries, bridge construction, and railway maintenance. They are ideal for heavy-duty lifting, pressing, and positioning tasks.


**About FEIYAO:**

Established in 1978, Jiangsu Feiyao Machinery Manufacturing Factory is a leading manufacturer of hydraulic tools in China. The company specializes in producing a wide range of products including PLC lifting systems, hydraulic cylinders, torque wrenches, nut splitters, flange spreaders, gear pullers, hydraulic pumps, and accessories.

FEIYAO’s products are distributed globally, with a strong presence in Europe, Southeast Asia, and the Middle East. We are known for our high-quality standards, competitive pricing, and excellent customer service. Our commitment to quality has earned us CE and ISO 9001 certifications.

We welcome all overseas customers to reach out for business inquiries or collaborations. Whether through phone, email, or fax, we look forward to building long-term relationships with you.

For more information, please visit our website: www.fyhydraulic.cn.

If you have any questions about our products, feel free to contact us. We are always here to provide the best support and assistance.


**Technical Specifications:**
Model Pressure @ 700 bar (ton/KN) Stroke (mm) Capacity (ton) Effective Area (cm²) Oil Capacity (cm³) Closed Height A (mm) Extending Height B (mm) Outer Diameter D (mm) Central Hole Diameter Y (mm) Weight (kg)
Push Pull Push Pull Push Pull
FY-RRH-307 30 (326) 178 30 23.0 46.6 30.4 829 541 330 508 114 33.3 22
FY-RRH-3010 257 30 23.0 46.6 30.4 1202 781 432 689 114 33.3 27
FY-RRH-603 60 (576) 89 60 41.8 82.2 54.0 733 481 248 337 159 53.8 28
FY-RRH-606 165 60 41.8 82.2 54.0 1366 891 324 489 159 53.8 35
FY-RRH-6010 257 60 41.8 82.2 54.0 2115 1388 438 695 159 53.8 46
FY-RRH-1001 100 (931) 38 100 67.7 133.1 87.4 505 332 165 203 213 79.2 39
FY-RRH-1003 76 100 67.7 133.1 87.4 1011 664 254 330 213 79.2 61
FY-RRH-1006 152 100 67.7 133.1 87.4 2035 1328 342 495 213 79.2 79
FY-RRH-10010 257 100 67.7 133.1 87.4 3420 2246 460 718 213 79.2 107
FY-RRH-1508 150 (1333.3) 203 150 76.0 204.1 102.6 4144 2083 349 552 248 79.2 111

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