The AirTAC AirTAC SDA25X100SB Compact Cylinder | 25mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø25mm bore and 100mm stroke, M5×0.8 air ports and a riveted short body that saves mounting depth. Sensor slots around the body accept magnetic switches for position sensing.
The AirTAC SDA25X100SB is a double-acting single-rod compact cylinder engineered to deliver 245.4 N of push force and 206.2 N of pull force at 0.5 MPa. Its riveted assembly merges the barrel, rear cover, piston, and rod into an ultra-short unit, drastically reducing axial mounting depth where a conventional round-body actuator would be too bulky. The bore is hard-anodized and uses a two-way piston seal for reliable operation across the 30-500 mm/s speed range.
This specific configuration includes an -S piston magnet for direct mounting of AirTAC reed or electronic switches along the body grooves, enabling precise end-of-stroke detection. The -B option provides a male M8x1.25 threaded rod end (on a 10 mm rod) for straightforward load coupling. Deceleration at the 100 mm stroke limits is handled by a fixed NBR bumper, which slows the piston near the end caps but is not a field-adjustable air cushion.
| Model | AirTAC SDA25X100SB Compact Cylinder | 25mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø25 mm |
| Stroke | 100 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Rod end thread | M5×0.8 female / M8×1.25 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 | 245 N | 206 N |
| 0.7 MPa | 344 N | — |
| Max (@1.0 MPa) | 50 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. |
|---|---|
| 25 | Bore size in mm. |
| ×100 | 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).
Uses the 245.4 N extend force to push small cartons off a sorting line, where the 100 mm stroke provides adequate reach without deep machine encroachment.
Secures delicate printed circuit boards during assembly, using the male M8x1.25 rod end for custom fixture attachment and the -S magnet for position feedback.
Cycles a heat-sealing jaw on a vertical packaging machine, relying on the fixed NBR bumper to absorb impact at the end of the 100 mm extension.
When sizing this 25 mm bore actuator, evaluate your force margins carefully. Stepping down to the SDA20 reduces the 0.5 MPa push capacity to 157.1 N, while moving up to the SDA32 increases it to 402.1 N. For the SDA25X100SB, the 245.4 N output at 0.5 MPa translates to a safe working load of roughly 147 N (about 60% capacity) and a vertical lift capability of approximately 12.5 kg with a 2:1 safety margin. Confirm your ordering essentials: 25 mm bore, 100 mm stroke, M5x0.8 port, built-in magnet (S), and male M8x1.25 rod thread (B). Keep in mind a standard SDA will drift and cannot hold a load if air pressure drops or the valve is centered; the fixed bumper only decelerates the stroke end rather than locking it. Use an external rod lock or pilot-operated check valve if position holding is required.
Quick checklist
At 0.5 MPa, the push force is 245.4 N and the pull force is 206.2 N. At 0.7 MPa, the push force is 343.6 N and the pull force is 288.6 N. The theoretical maximum push force is 50 kgf at 1.0 MPa. The operating pressure range is 0.15-1.0 MPa.
No, it uses a fixed NBR bumper at each end to decelerate the piston, which is not a field-adjustable air cushion. Additionally, it does not hold its load if air is lost or the valve is centered; the piston will drift. An external rod lock or pilot-operated check valve is required for position holding.
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