RCH206, 20 Ton Capacity,155mm Stroke, Single-Acting Spring-Retraction Hollow Hydraulic Cylinders
The RCH Series combines versatility and durability in a compact, single-acting hollow design. Featuring an innovative spring return mechanism, these cylinders are ideal for a wide range of pushing, pulling, and pressing applications, delivering reliability and efficiency in demanding industrial environments.
Description
Model: RCH206 | Series: RCH | Product Line: Industrial Tools
Key Features & Benefits
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Hollow Plunger Design: Enables both pulling and pushing operations, providing flexible performance across multiple work scenarios.
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Spring Return System: Ensures quick and automatic retraction without external hydraulic input, simplifying operation and improving cycle times.
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External Threaded Ring: Allows for easy installation and adjustment, reducing setup time and effort.
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Painted Surface Finish: Offers enhanced corrosion resistance and a durable, professional appearance.
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High-Strength G80 Lifting Eyes (Large Tonnage Models): Certified lifting rings ensure safe handling and positioning of heavier units.
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Base Mounting Holes (All Models): Facilitates secure and stable mounting for consistent performance.
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High-Grade Polyurethane Seals: Deliver superior sealing performance, excellent wear resistance, and long service life under high-pressure conditions.
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Threaded Holes in Hollow Plunger: Allows the fitting of custom saddles or accessories, adapting to specialized and non-standard applications.
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Integrated Dust Wiper Seals: Minimize contamination from debris and dust, protecting internal components and extending cylinder life.
Design
- Removable hard saddle to prevent damage to the piston when in contact with rough surfaces.
- Dust seal, preventing external impurities from entering the interior of the cylinder and causing contamination or damage.
- Exhaust port to expel air, preventing air resistance from causing jerky motion and noise, ensuring stable operation of the hydraulic system.
- Powerful spring for rapid return stroke.
- The Swedish CEJN coupler and dust cap ensure safety throughout.
- Stop ring for absorbing overload and preventing piston overtravel.
- Dust seal, preventing external impurities from entering the interior of the cylinder and causing contamination or damage.
- High-pressure seal to achieve zero internal leakage in the hydraulic system, reducing wear and extending service life.
Specifications
| Maximum Operating Pressure (bar) | 700 |
| Capacity Class (tonnage) | 20 |
| Stroke (mm) | 155 |
| Collapsed Height/mm | 306 |
| Extended Height/mm | 461 |
| Return Type | Single-Acting, Spring Return |
| Cylinder Effective(cm2) | 30.7 |
| Oil Capacity(cm3) | 476 |
| Surface Treatment | Yellow Painting Surface |
| Coupler | CEJN 3/8NPT-18 |
| Weight (kg) | 14.1 |
Dimensions
| Collapsed Height/mm(A) | 306 |
| Extended Height/mm(B) | 461 |
| Cylinder Outside Dia/mm(C) | 98.5 |
| Cylinder Inner Dia/mm(D) | 73.1 |
| Plunger Dia/mm(E) | 54.1 |
| Base To Advance Port/mm(F) | 25 |
| Saddle Dia/mm(H) | 54 |
| Saddle Protri. From Plgr./mm(J) | 9.7 |
| Center Hole Dia/mm(R) | 26.9 |
Series Comparison
| Model Number | Capacity/Ton（kN) | Stroke/mm | Cylinder Effective Area/cm2 | Oil Capacity/cm3 | Collapsed Height/mm(A) | Extended Height/mm(B) | Cylinder Outside Dia/mm(C) | Cylinder Inner Dia/mm(D) | Plunger Dia/mm(E) | Base To Advance Port/mm(F) | Saddle Dia/mm(H) | Saddle Protri. From Plgr./mm(J) | Plunger Internal Thread (P) | Plunger Thread Length/mm(N) | Collar Thread(M) | Collar Thread Length(Q)/mm | Center Hole Dia/mm(R) | Base Mounting Hole Bolt Circle/mm(U) | Base Mounting Hole Thread(V) | Base Mounting Hole Thread Depth/mm(Y) | Weight/Kg |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| RCH120 | 12(125) | 8 | 17.9 | 14 | 55 | 63 | 70 | 54.1 | 35.1 | 9 | * | * | 3/4”-16UN | 16 | 2 3/4”-16 | 30 | 17.3 | 50.8 | 5/16”-18UNC | 9 | 1.5 |
| RCH121 | 42 | 17.9 | 75 | 120 | 162 | 70 | 54.1 | 35.1 | 25 | * | * | * | * | 2 3/4”-16 | 30 | 19.5 | * | * | * | 2.8 | |
| RCH1211 | 42 | 17.9 | 75 | 120 | 162 | 70 | 54.1 | 35.1 | 25 | * | * | 3/4”-16UN | 18 | 2 3/4”-16 | 30 | 17.3 | * | * | * | 2.8 | |
| RCH123 | 76 | 17.9 | 136 | 184 | 260 | 70 | 54.1 | 35.1 | 25 | * | * | * | * | 2 3/4”-16 | 30 | 19.5 | 50.8 | 5/16”-18UNC | 12.4 | 4.4 | |
| RCH202 | 20(215) | 49 | 30.7 | 150 | 162 | 211 | 98.5 | 73.1 | 54.1 | 19 | 54 | 9.7 | 1 9/16”-16UN | 30 | 3 7/8”-12 | 38 | 26.9 | 82.6 | 3/8”-16UNC | 9.4 | 7.7 |
| RCH206 | 155 | 30.7 | 476 | 306 | 461 | 98.5 | 73.1 | 54.1 | 25 | 54 | 9.7 | 1 9/16”-16UN | 30 | 3 7/8”-12 | 38 | 26.9 | 82.6 | 3/8”-16UNC | 9.4 | 14.1 | |
| RCH302 | 30(326) | 64 | 46.6 | 298 | 178 | 242 | 114 | 88.9 | 63.5 | 21 | 63 | 9 | 1 13/16”-16UN | 30 | 4 1/2”-12 | 42 | 33.3 | 92.2 | 3/8”-16UNC | 14 | 10.9 |
| RCH306 | 155 | 46.6 | 722 | 330 | 485 | 114 | 88.9 | 63.5 | 25 | 63 | 9 | 1 13/16”-16UN | 35 | 4 1/2”-12 | 42 | 33.3 | 92.2 | 3/8”-16UNC | 14 | 21.8 | |
| RCH603 | 60(576) | 76 | 82.3 | 626 | 247 | 323 | 159 | 123.9 | 91.9 | 31 | 91 | 12 | 2 3/4”-16UN | 35 | 6 1/4”-12 | 48 | 53.8 | 130.3 | 1/2”-13UNC | 14 | 28.1 |
| RCH606 | 153 | 82.3 | 1259 | 323 | 476 | 159 | 123.9 | 91.9 | 31 | 91 | 12 | 2 3/4”-16UN | 35 | 6 1/4”-12 | 48 | 53.8 | 130.3 | 1/2”-13UNC | 14 | 35.4 | |
| RCH1003 | 95(931) | 76 | 133 | 1011 | 254 | 330 | 213 | 165.1 | 127 | 38 | 126 | 12 | 4”-16UN | 40 | 8 3/8”-12 | 60 | 79 | 177.8 | 5/8”-11UNC | 19 | 63.0 |
Downloads
| – | File Name | File Type |
|---|---|---|
 | RCH Series,Single Acting Spring Retraction Hollow Hydraulic Cyinder | English |
| RCH系列单回路中空液压油缸 | 中文 |
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