Airtac SC50 Standard Cylinder SC50X165H
The AirTAC Airtac SC50 Standard Cylinder SC50X165H is a genuine double-acting standard air cylinder with a Ø50mm bore and 165mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke165 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SC50 Standard Cylinder SC50X165H
The SC50X165H is a double-acting pneumatic cylinder with a 50 mm bore and 165 mm stroke, built for high-temperature environments. Its Viton (FKM) seals shift the operating range to 0–150 °C, making it suitable for autoclaves, foundries, and drying lines where standard polyurethane would degrade.
At 0.7 MPa supply pressure, this cylinder delivers 1374 N of push force and 825 N on the pull stroke. The 20 mm diameter piston rod and 21 mm adjustable air cushion at each end provide smooth deceleration. The body length A is 150 mm, giving a total extended length of approximately 315 mm.
Airtac SC50 Standard Cylinder SC50X165H Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X165H |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 165 mm |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 21 mm |
| Max stroke | Up to 1200 mm |
Specifications follow the official AirTAC SC series datasheet. Operating pressure 0.15–1.0 MPa, proof pressure 1.5 MPa, temperature −20 to +70 °C. Confirm against the product label before installation. Thread options: PT (standard) / G.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (approx.) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SC50 Standard Cylinder SC50X165H
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×165 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related variants: SCD (double rod), SCJ (adjustable stroke), SCT (multi-position). Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
Where the Airtac SC50 Standard Cylinder SC50X165H Is Used
High-Temperature Process Automation
With Viton seals rated to 150 °C, the SC50X165H actuates dampers, gates, and clamps inside ovens, kilns, and autoclave systems where standard cylinders would fail.
Hot Press & Mould Clamping
Delivers 1767 N of clamping force at 0.9 MPa for heated platen presses in rubber moulding or composite curing, resisting seal hardening over repeated hot cycles.
Foundry & Glass Line Sorting
Pushes castings or glassware through cooling and sorting stations. The 20 mm rod handles moderate side loads, and the adjustable cushion protects the end caps at speed.
Is the Airtac SC50 Standard Cylinder SC50X165H the Right Cylinder?
For higher force in the same mounting envelope, the SC63 bore steps up to 2182 N push at 0.7 MPa. If a shorter stroke and lower cost are priorities, the SC50X150 offers a standard stroke alternative. This 165 mm stroke is within the standard range for the 50 mm bore.
When replacing an existing cylinder, match five points: 50 mm bore, 165 mm stroke, PT1/4 port thread, the required mounting accessory (this model is basic, no bracket), and the absence of a magnet. The Viton seal variant is essential if the original cylinder operated above 70 °C.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SC50 Standard Cylinder SC50X165H FAQ
At 0.7 MPa (7 bar) supply pressure, the theoretical push force is 1374 N and the pull force is 825 N. At the maximum operating pressure of 0.9 MPa, push force reaches 1767 N.
No. The SC50X165H is a double-acting cylinder and does not lock or hold position when pressure is exhausted or the directional valve is centred. For load holding, add a pilot-operated check valve or an external rod brake.
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