Airtac SC50 Standard Cylinder SC50X145H
The AirTAC Airtac SC50 Standard Cylinder SC50X145H is a genuine double-acting standard air cylinder with a Ø50mm bore and 145mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke145 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SC50 Standard Cylinder SC50X145H
The SC50X145H is a double-acting pneumatic cylinder from the AirTAC SC tie-rod series, featuring a 50 mm bore and a 145 mm stroke. At 0.5 MPa, it provides a push force of 982 N and a pull force of 825 N, making it a capable mid-range actuator for industrial automation tasks. The 20 mm diameter piston rod and PT1/4 port ensure robust air flow and mechanical strength.
This specific model is equipped with Viton (FKM) seals, designated by the 'H' suffix, which upgrades the operating temperature range to 0–150 °C, ideal for high-heat environments. With a 21 mm adjustable air cushion and a compact body length of 150 mm, it offers reliable end-of-stroke deceleration in a space-efficient package.
Airtac SC50 Standard Cylinder SC50X145H Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X145H |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 145 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 SC50X145H
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×145 | 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 SC50X145H Is Used
High-Temperature Automation
The Viton seals enable reliable actuation in ovens, autoclaves, and foundry equipment where ambient temperatures reach up to 150 °C, preventing seal degradation common with standard materials.
Material Clamping & Pressing
Generating 982 N of force at 0.5 MPa, this cylinder is well-suited for pneumatic clamping fixtures, light-duty presses, and holding workpieces during machining or assembly processes.
Part Stops & Sorting Gates
The 145 mm stroke provides ample travel for diverting or stopping products on conveyor lines. The adjustable cushioning ensures quiet, low-impact operation at speeds up to 800 mm/s.
Is the Airtac SC50 Standard Cylinder SC50X145H the Right Cylinder?
Select the SC50X145H for applications needing a robust mid-bore actuator in high-temperature environments. If your force requirement is lower, consider stepping down to the SC40 series (628 N push at 0.5 MPa); for higher force, the SC63 series offers 1559 N at the same pressure. The 145 mm stroke is well within the 1200 mm maximum standard stroke for a 50 mm bore.
For a drop-in replacement, match these five key specifications: 50 mm bore, 145 mm stroke, PT port thread, basic (no mounting accessory), and Viton seals. This is a tie-rod cylinder; ensure the replacement is also an AirTAC SC series or a dimensionally identical tie-rod type, as it is not interchangeable with ISO 15552 profile cylinders.
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 SC50X145H FAQ
The theoretical push force is 982 N at 0.5 MPa and 1767 N at the maximum operating pressure of 0.9 MPa. The pull force on the return stroke is 825 N at 0.5 MPa, accounting for the 20 mm piston rod area.
No. The SC50X145H is a double-acting cylinder and will not hold its position if air pressure is exhausted or lost. For load-holding applications, you must integrate an external mechanical lock, a rod brake, or a pilot-operated check valve in the circuit.
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