Airtac SC50 Standard Cylinder SC50X275STC
The AirTAC SC50 Standard Cylinder SC50X275STC is a genuine double-acting standard air cylinder with a Ø50mm bore and 275mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke275 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SC50 Standard Cylinder SC50X275STC
The SC50X275STC is a double-acting pneumatic cylinder delivering 982 N of push force at 0.5 MPa (1374 N at 0.7 MPa). Its 275 mm stroke suits medium-reach clamping, pressing, and material-transfer tasks. The 20 mm diameter rod and 21 mm adjustable air cushion at each end provide smooth deceleration, helping to protect tooling and reduce cycle shock.
This model includes a built-in magnet (-S suffix) so CMSG, DMSG, or EMSG reed and solid-state sensors clamp directly onto the tie-rod barrel for piston-position feedback. The TC centre trunnion mount (supplied with the TCM1 bracket, order code F-SC50TC) allows the cylinder body to pivot, making it ideal for swinging or articulating loads. Seals are standard TPU for a -20 to +70 °C operating range, and ports are PT1/4.
Airtac SC50 Standard Cylinder SC50X275STC Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X275STC |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 275 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 SC50X275STC
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×275 | 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 SC50X275STC Is Used
Part Transfer & Sorting
The 275 mm stroke and trunnion pivot allow the cylinder to swing into a conveyor line, pushing or diverting boxes and components with 982 N of force at standard plant pressure.
Clamping & Fixturing
Magnetic piston sensing confirms clamp position on automated welding or assembly fixtures. The adjustable cushion protects the fixture from impact at the end of the 275 mm travel.
Articulating Linkage Actuation
With the TC centre trunnion mount, this cylinder is purpose-built for pivoting linkages on packaging machines, chute gates, or hopper doors that need a mid-stroke pivot point.
Is the Airtac SC50 Standard Cylinder SC50X275STC the Right Cylinder?
For applications needing slightly more force, stepping up to the 63 mm bore provides 1559 N push at 0.5 MPa. If space is tight and less force is acceptable, the 40 mm bore offers 628 N. The 275 mm stroke is within the 1200 mm maximum standard stroke for bore 50, so this is a standard-length cylinder.
When replacing this unit, match five points: 50 mm bore, 275 mm stroke, PT1/4 port thread, centre trunnion (TC) mounting with the F-SC50TC bracket, and the built-in magnet for sensors. At this stroke length, ensure the load is guided and side forces are minimal; an unsupported 20 mm rod can bend under off-axis loading. For high side-load applications, consider an external linear guide or a guided cylinder.
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 SC50X275STC FAQ
At 0.7 MPa (7 bar) supply pressure, the theoretical push force is 1374 N. The pull force on the retract stroke is 825 N at 0.5 MPa, accounting for the 20 mm rod area. For dynamic sizing, use a 50-70% load factor.
Yes. The -S suffix in the model code means a magnet is built into the piston. You can fit AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors directly onto the barrel tie-rods to detect end-of-stroke or mid-stroke piston position.
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