Airtac SC50 Standard Cylinder SC50X300
The AirTAC Airtac SC50 Standard Cylinder SC50X300 is a genuine double-acting standard air cylinder with a Ø50mm bore and 300mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke300 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SC50 Standard Cylinder SC50X300
The AirTAC SC50X300 is a double-acting tie-rod cylinder delivering 982 N of push force at 0.5 MPa (1767 N at 0.9 MPa max operating pressure). Its 20 mm diameter piston rod and 300 mm stroke make it a practical choice for medium-duty linear actuation where a compact footprint is required.
This model features a 21 mm adjustable air cushion at each end to decelerate the piston smoothly, reducing end-of-stroke impact. The body length A is 150 mm, giving a total extended length of approximately 450 mm. Standard PT1/4 ports and an M16x1.5 rod thread simplify pneumatic connections and tooling attachment.
Airtac SC50 Standard Cylinder SC50X300 Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X300 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 300 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 SC50X300
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×300 | 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 SC50X300 Is Used
Material Handling Gates
Actuates diverter gates and stops on conveyor lines. The 982 N push force at 0.5 MPa reliably directs packages and parcels in distribution centers.
Clamping & Fixturing
Provides consistent clamping pressure for woodworking or light metal fabrication jigs. The adjustable cushion protects the fixture from hammering at the end of stroke.
Agricultural Sorting Mechanisms
Operates sorting flaps and chutes in seed or produce grading equipment. TPU seals handle standard ambient temperatures from -20 to +70 °C.
Is the Airtac SC50 Standard Cylinder SC50X300 the Right Cylinder?
The SC50X300 sits in the mid-range of the SC family. If your application requires higher force, stepping up to the SC63 bore provides 1559 N at 0.5 MPa. For lighter, more compact needs, the SC40 bore offers 628 N. Always match replacement cylinders across five key points: bore (50 mm), stroke (300 mm), port thread (PT1/4), mounting accessory, and magnet option.
At 300 mm of stroke, the 20 mm rod is robust for axial loads, but any significant side loading requires an external guide or a guided cylinder to prevent rod bearing wear and bending. The adjustable cushion should be tuned for the specific payload to optimize cycle time and minimize vibration.
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 SC50X300 FAQ
At 0.5 MPa, the push force is 982 N and the pull force is 825 N. At the maximum operating pressure of 0.9 MPa, push force reaches 1767 N. The theoretical maximum at 1.0 MPa is 200 kgf.
No. The SC50X300 is a double-acting cylinder and does not lock or hold position when pressure is exhausted or the valve is centered. For load holding without live pressure, you must add a pilot-operated check valve or an external mechanical brake.
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