
The AirTAC Airtac SDA Ultra Thin Cylinder SDA100X140S is a genuine double-acting COMPACT (thin) air cylinder with a Ø100mm bore and 140mm stroke, PT3/8 air ports and a riveted short body that saves mounting depth. Sensor slots around the body accept magnetic switches for position sensing.
The AirTAC SDA100X140S is a double-acting, single-rod compact cylinder engineered for heavy-duty automation within a minimal axial footprint. By utilizing a riveted assembly that merges the barrel, rear cover, piston, and rod, this unit achieves a remarkably short overall length compared to conventional round-body actuators. At its core, it generates a substantial 3927 N of push force and 3524.9 N of pull force at 0.5 MPa, making it suitable for high-thrust operations.
This specific configuration includes a built-in piston magnet (-S) for direct mounting of AirTAC reed or electronic switches along the body grooves. The 140 mm stroke is a non-standard, made-to-order length exceeding the 130 mm maximum standard stroke for this bore. End-of-travel deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, and the hard-anodized 100 mm bore houses a robust 32 mm piston rod.
| Model | Airtac SDA Ultra Thin Cylinder SDA100X140S |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø100 mm |
| Stroke | 140 mm |
| Acting type | Double acting |
| Port size | PT3/8 |
| Rod end thread | M18×1.5 female / M26×1.5 male (B) |
| 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 – 500 mm/s |
| Cushion | Fixed NBR bumper (both ends) |
| Max standard stroke | Up to 120 mm |
Specifications follow the official AirTAC SDA compact-cylinder datasheet. Confirm against the product label before installation. Port thread: PT (standard). Rod: female thread (blank) / male thread (B).
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3525 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| SDA | Compact (thin) double-acting cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×140 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| B | Male-thread piston rod (omit = female-thread rod). |
Thread: PT standard. Related SDA-family variants: SSA (single-acting push), STA (single-acting pull), SDAD (double rod), SDAJ (adjustable stroke), SDAT (duplex), SDAW (duplex-end).
Drives heavy blanking and stamping dies in automotive assembly lines where the 3927 N push force at 0.5 MPa is required to form steel panels within a tight machine envelope.
Elevates loaded pallets in high-throughput packaging facilities, utilizing the 32 mm rod and 140 mm stroke to index goods vertically while relying on external guides to manage side loads.
Actuates large ejection pins in plastic injection molding machinery, using the built-in magnet to trigger solid-state switches for precise part extraction at the end of the cycle.
Selecting the SDA100X140S requires evaluating your thrust and space constraints. If 3927 N of push at 0.5 MPa exceeds your requirements, stepping down to the SDA80 provides 2513.3 N, saving valuable machine footprint. As the largest bore in the SDA series, this 100 mm model represents the upper limit for compact actuation. Computed insights indicate a safe working load of roughly 2356 N (about 60% of the 0.5 MPa push figure) and a vertical lift capacity of approximately 200.2 kg using a 2:1 safety margin.
When ordering, confirm the 100 mm bore, 140 mm made-to-order stroke, PT3/8 port, and the -S magnet option. The piston rod end features a female M18x1.5 thread (with male M26x1.5 available via the B option). Note that a plain compact cylinder drifts if air pressure is lost or the valve is centered; the fixed NBR bumper only decelerates the stroke end and does not function as a lock. For suspended or vertical loads, integrate an external rod lock or pilot-operated check valve.
Quick checklist
This double-acting cylinder delivers a push force of 3927 N and a pull force of 3524.9 N at 0.5 MPa. At 0.7 MPa, the push increases to 5497.8 N. The theoretical maximum push is 801 kgf at 1.0 MPa. The operating pressure range is 0.15-1.0 MPa, with a proof pressure of 1.5 MPa.
No, the piston will drift if air is lost or the valve is centered; the fixed NBR bumper only decelerates the stroke end and acts as neither a lock nor a brake. For suspended loads, use an external rod lock. For high-speed operations, add an external shock absorber, as the bumper is not an adjustable air cushion.
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