The AirTAC SC50 Standard Cylinder SC50X650STC is a genuine double-acting standard air cylinder with a Ø50mm bore and 650mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC50X650STC is a double-acting pneumatic cylinder delivering 982 N of push force at 0.5 MPa and 1767 N at the maximum operating pressure of 0.9 MPa. With a 50 mm bore and a 650 mm stroke, it features a 20 mm diameter piston rod and an adjustable air cushion length of 21 mm to decelerate the piston smoothly at end-of-travel.
This model is factory-configured with a built-in magnet (-S suffix) for direct mounting of CMSG/DMSG/EMSG sensors, and a centre trunnion mount (TC suffix, supplied with the TCM1 bracket) that allows the cylinder to pivot during operation. The body length A is 150 mm, resulting in a total extended length of approximately 800 mm. It uses standard PT ports and TPU seals for a temperature range of -20 to +70 °C.
| Model | Airtac SC50 Standard Cylinder SC50X650STC |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 650 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.
| 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.
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×650 | 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.
The 650 mm stroke and trunnion mount allow this cylinder to pivot into position for pushing or lifting products between conveyor lines, with sensor feedback confirming cycle completion.
Delivers up to 1767 N of clamping force at 0.9 MPa for holding workpieces during machining or assembly. The built-in magnet enables end-of-stroke sensing for automated sequences.
The pivoting TC mount and long stroke suit agricultural chute gates. The TPU seals handle dusty conditions within the -20 to +70 °C range, and the 982 N force at 0.5 MPa easily moves a diverter flap.
Select the SC50 bore when your application requires between 982 N (push at 0.5 MPa) and 1767 N (push at 0.9 MPa). For lower force requirements, step down to the SC40 bore which provides 628 N at 0.5 MPa; for higher demands, the SC63 bore delivers 1559 N at the same pressure. This 650 mm stroke is well within the 1200 mm maximum standard stroke for the 50 mm bore.
For any stroke of 300 mm or more, especially with the 20 mm rod, evaluate side-loading conditions carefully. Unsupported side loads on a long extended rod can cause bending or premature bearing wear. Use an external guide rail or a guided cylinder assembly to absorb transverse forces and protect the rod bearing. For replacement, match five key points: 50 mm bore, 650 mm stroke, PT port thread, TC centre trunnion mount (F-SC50TC), and the built-in magnet (-S) for sensor compatibility.
Quick checklist
At 0.7 MPa operating pressure, the SC50 bore generates 1374 N of push force and 825 N of pull force on the retract stroke. The maximum push force at 0.9 MPa is 1767 N.
No. The SC50X650STC is a double-acting cylinder that requires continuous air pressure to maintain position. If pressure is exhausted or the directional valve is centered, the piston will drift. For load holding without live pressure, you must add an external rod lock or a pilot-operated check valve.
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