RSM50, 5 Ton Capacity,6mm Stroke, Ultra Low Profile Hydraulic Cylinder
Engineered for the most space‑constrained applications, RIVERLAKE’s RSM Series offers an ultra‑flat, compact design that fits where conventional hydraulic cylinders cannot. These single‑acting, spring‑return cylinders deliver reliable force with advanced surface treatments and user‑friendly features for maintenance‑free operation and long service life.
Description
Series: RSM | Product Line: Industrial Tools
Key Features:
-
Advanced gas nitriding + post‑oxidation – The cylinder body, piston, and stop ring undergo gas nitriding followed by post‑oxidation, ensuring outstanding wear resistance, self‑lubrication, and corrosion protection.
-
Additional paint finish – A full topcoat of paint improves visual identification and further enhances corrosion resistance.
-
Ultra‑low profile, flat design – Ideal for applications with extremely limited vertical clearance where other cylinders cannot be used.
-
Convenient handles (selected models) – RSM‑750, RSM‑1000, and RSM‑1500 are equipped with a handle for easy carrying and positioning.
-
Mounting holes – Simplify fixture and secure placement in demanding jobs.
-
CEJN quick coupler & dust cap as standard – All models come standard with a genuine CEJN quick coupler and a protective dust cap for fast, clean, leak‑free connections.
-
Single‑acting, spring return – Reliable spring retraction simplifies operation, reduces cycle time, and enhances safety.
Design
- Dust seal, preventing external impuritiesfrom entering the interior of the cylinder and causing contamination or damage.
- The piston rod adopts gas nitriding treatment,featuring excellent wear resistance and corrosion resistance.
- The Swedish CEJN coupler and dust cap ensure safety throughout.
- The cylinder body is treated by gas nitriding plus post-oxidation process,followsed by external baked painting to deliver superior corrosion resistance
- The gas-nitrided stop ring is used to absorb eccentric load and prevent plunger over-travel.
- High-pressure seal to achieve zero internal leakage in the hydraulic system, reducing wear and extending service life.
- Powerful spring for rapid return stroke.
Specifications
| Maximum Operating Pressure (bar) | 700 |
| Capacity Class (tonnage) | 5 |
| Stroke (mm) | 6 |
| Collapsed Height/mm | 32 |
| Extended Height/mm | 38 |
| Return Type | Single-Acting, Spring Return |
| Cylinder Effective(cm2) | 6.5 |
| Oil Capacity(cm3) | 4 |
| Surface Treatment | All components undergo gas nitriding and post-oxidation process,cylinder body come with an extra baked paint coating layer. |
| Coupler | CEJN 3/8NPT-18 |
| Weight (kg) | 1 |
Dimensions
| Collapsed Height/mm(A) | 32 |
| Extended Height/mm(B) | 38 |
| Cylinder Outside Dia/mm(C) | 58X41 |
| Cylinder Inner Dia/mm(D) | 28.7 |
| Piston rod Dia/mm(E) | 25.4 |
| Base To Advance Port/mm(F) | 16 |
| Piston Protri. From Plgr./mm(J) | 1 |
| Mounting Hole Distance/mm(T) | 22X28.5 |
| Distance/mm(R) | 20 |
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) | Piston Rod Dia/mm(E) | Base To Advance Port/mm(F) | Piston Protri. From Plgr./mm(J) | Mounting Hole Distance/mm(T) | Distance/mm(R) | Base Mounting Hole Bolt Circle/mm(U) | Base Mounting Hole Dia/mm(Z) | Base Mounting Hole Counterbore Dia/mm(V) | Base Mounting Hole Counterbore Length/mm(Y) | Weight/Kg |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| RSM50 | 5(45) | 6 | 6.5 | 4 | 32 | 38 | 58X41 | 28.7 | 25.4 | 16 | 1 | 22X28.5 | 20 | 28.5 | 5.5 | 9.1 | 4.3 | 1.0 |
| RSM100 | 10(101) | 11 | 14.5 | 18 | 43 | 54 | 82X55 | 42.9 | 38.1 | 19 | 1 | 34X36.6 | 27 | 36.6 | 7.1 | 10.7 | 7.9 | 1.4 |
| RSM200 | 20(201) | 11 | 28.7 | 32 | 51 | 62 | 101X76 | 60.5 | 50.8 | 19 | 1 | 39X49.3 | 39 | 49.3 | 10 | 15.1 | 9.9 | 3.1 |
| RSM300 | 30(295) | 13 | 42.1 | 55 | 58 | 71 | 117X95 | 73.5 | 63.4 | 19 | 2 | 44X52.3 | 47 | 52.3 | 10 | 15.9 | 11.2 | 4.5 |
| RSM500 | 45(435) | 16 | 62.1 | 99 | 66 | 82 | 140X114 | 88.9 | 69.8 | 19 | 2 | 53X66.5 | 57 | 66.5 | 11 | 19 | 12.7 | 6.8 |
| RSM750 | 75(718) | 16 | 102.6 | 164 | 79 | 95 | 165X139 | 114.3 | 82.6 | 19 | 2 | 66X76.2 | 69 | 76.2 | 13.5 | 20.6 | 14.2 | 11.3 |
| RSM1000 | 90(887) | 16 | 126.7 | 203 | 85 | 101 | 177X153 | 127 | 92.2 | 19 | 2 | 74X76.2 | 76 | 76.2 | 13.5 | 20.6 | 14.2 | 14.5 |
| RSM1500 | 150(1386) | 16 | 198.1 | 317 | 100 | 116 | 215X190 | 158.8 | 114.3 | 23 | 2 | 82X117.3 | 95 | 117.3 | 13.5 | 20.6 | 14.2 | 26.3 |
Downloads
| – | File Name | File Type |
|---|---|---|
 | RSM RCS Single-Acting Low-Height Cylinders | English |
| RSM RCS薄型液压油缸 | 中文 |
| ||
|