Airtac SC50 Standard Cylinder SC50X140TC
The AirTAC Airtac SC50 Standard Cylinder SC50X140TC is a genuine double-acting standard air cylinder with a Ø50mm bore and 140mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke140 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SC50 Standard Cylinder SC50X140TC
The SC50X140TC is a 50 mm bore double-acting pneumatic cylinder offering a 140 mm stroke and a centre trunnion (TC) mount for pivoting applications. At 0.5 MPa, it generates a push force of 982 N, with a maximum theoretical thrust of 1767 N at 0.9 MPa operating pressure. The 20 mm diameter piston rod and PT1/4 port ensure robust, responsive actuation in a compact tie-rod body.
This model includes the TC centre trunnion bracket (F-SC50TC), supplied with the TCM1 mounting bracket, allowing the cylinder to pivot freely during operation. The adjustable air cushion at each end decelerates the piston smoothly, reducing impact noise and vibration. With a body length A of 150 mm and a total extended length of 290 mm, it fits into tight machinery spaces where a fixed foot mount would bind.
Airtac SC50 Standard Cylinder SC50X140TC Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X140TC |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 140 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 SC50X140TC
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×140 | 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 SC50X140TC Is Used
Part Diverter Gates
The centre trunnion mount lets the cylinder pivot as it actuates a diverter gate on a conveyor line, sorting packages by weight or barcode with a 140 mm stroke.
Welding Fixture Clamps
Delivers 982 N of clamping force at 0.5 MPa to hold steel fabrications securely in a welding jig, with the pivoting action allowing the clamp arm to swing clear for part loading.
Hopper Discharge Gates
Operates a sliding gate on a seed or grain hopper, using the trunnion mount to accommodate the arc of the actuating linkage as the gate opens and closes.
Is the Airtac SC50 Standard Cylinder SC50X140TC the Right Cylinder?
Choose the SC50X140TC for medium-duty clamping, pressing, or pivoting linkages where the cylinder must swing through an arc. If 982 N at 0.5 MPa is insufficient, stepping up to the 63 mm bore provides 1559 N at the same pressure. For strokes over 300 mm on this 20 mm rod, consider an external guide or a guided cylinder to prevent rod bending under side load.
To ensure a correct replacement, match five key points: 50 mm bore, 140 mm stroke, PT1/4 port thread, centre trunnion (TC) mounting with the F-SC50TC bracket, and no built-in magnet. This cylinder is not an ISO 15552 profile unit; it is a shorter tie-rod design that must be replaced with another AirTAC SC series cylinder of identical configuration.
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 SC50X140TC FAQ
At 0.7 MPa supply pressure, the 50 mm bore generates a theoretical push force of 1374 N. The pull force on the retract stroke is 825 N at 0.5 MPa, due to the reduced piston area on the rod side.
No. The AirTAC SC series is a tie-rod cylinder with a shorter overall body length than an ISO 15552 profile cylinder. The mounting dimensions and body length A (150 mm) are not interchangeable with ISO 15552 standards. You must replace it with another AirTAC SC50 tie-rod cylinder of the same stroke and mounting configuration.
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