The AirTAC Airtac SC40 Standard Cylinder SC40X1550STC is a genuine double-acting standard air cylinder with a Ø40mm bore and 1550mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
This AirTAC SC40X1550STC single-rod double-acting cylinder delivers 628 N of push force at 0.5 MPa, scaling to 1130 N at the 0.9 MPa maximum operating pressure. The 1550 mm stroke is a made-to-order length exceeding the standard 1200 mm maximum for 40 mm bore, paired with a 16 mm diameter piston rod and 21 mm adjustable air cushion for controlled end-of-stroke deceleration.
The -S suffix integrates a built-in magnet, allowing CMSG, DMSG, or EMSG reed and solid-state sensors to be clamped directly onto the tie-rod barrel for non-contact position sensing. The TC centre trunnion mounting (supplied with TCM1 bracket, order code F-SC40TC) enables the cylinder to pivot, making it suitable for swinging or articulating loads on custom machinery.
| Model | Airtac SC40 Standard Cylinder SC40X1550STC |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 1550 mm |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod thread | M12×1.25 |
| 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 | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (approx.) | 128 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. |
|---|---|
| 40 | Bore size in mm. |
| ×1550 | 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 1550 mm stroke moves lightweight parts across wide conveyor gaps or between distant stations, with trunnion mounting allowing the cylinder body to pivot as it cycles.
Pivots and tips panels or trays in assembly cells. The centre trunnion absorbs the swinging motion, while the 628 N push force handles moderate panel weights at standard line pressure.
Operates long vent or louvre linkages in agricultural buildings. The non-standard stroke provides the extended travel needed for wide-opening vents, with sensor feedback confirming open/closed status.
For applications requiring a longer stroke at this bore, this non-standard 1550 mm unit provides an extended working range while maintaining the 40 mm bore's force profile. If more force is needed, stepping up to a 50 mm bore (982 N at 0.5 MPa) is advisable; for a more compact design, the 32 mm bore (402 N at 0.5 MPa) may suffice. At this stroke length, the 16 mm rod is susceptible to bending under side loads—an external linear guide or rod-alignment coupler is essential to protect the rod bearing and seal.
This model is a direct replacement only for another AirTAC SC tie-rod cylinder matching the 40 mm bore, 1550 mm stroke, PT port thread, centre trunnion (TC) mount, and integrated magnet (-S). It is not dimensionally interchangeable with ISO 15552 profile cylinders.
Quick checklist
At 0.7 MPa operating pressure, the theoretical push force is 879 N. The maximum push force at 0.9 MPa is 1130 N. These values are based on the 40 mm bore piston area.
No. At 1550 mm stroke with a 16 mm rod, side loads will cause rod deflection and premature bearing wear. You must use an external linear guide or a rod-alignment coupler to absorb transverse forces and ensure reliable operation.
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