The AirTAC AirTAC SDA25X80SB Compact Cylinder | 25mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø25mm bore and 80mm 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 SDA25X80SB 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 significantly reduces axial mounting depth compared to round-body units, making it highly effective for machinery where space savings are critical. The bore is hard-anodized and utilizes a two-way piston seal for reliable operation.
This specific configuration includes a built-in piston magnet (-S) for direct mounting of AirTAC reed or electronic switches along the body grooves, plus a male M8x1.25 piston rod thread (-B) for secure load coupling. End-of-travel deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion. Operating speed ranges from 30-500 mm/s across a 0.15-1.0 MPa pressure range.
| Model | AirTAC SDA25X80SB Compact Cylinder | 25mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø25 mm |
| Stroke | 80 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. |
| ×80 | 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).
Pushes small cartons off a packaging conveyor line using 245.4 N of extend force, fitting neatly within tight side-frame clearances.
Secures delicate printed circuit boards during pick-and-place assembly, utilizing the male M8x1.25 rod end for precise tooling attachment.
Moves a fluid dispensing head across an 80mm stroke, relying on the built-in magnet to trigger reed or electronic switches for accurate dosing cycles.
When sizing this unit, evaluate stepping down to the SDA20 which provides 157.1 N push at 0.5 MPa, or stepping up to the SDA32 which yields 402.1 N push at 0.5 MPa. For the current 25mm bore, the safe working load is approximately 147 N (about 60% of the 245.4 N figure), translating to a vertical lift capacity of roughly 12.5 kg with a 2:1 safety margin. Confirm your ordering essentials: 25mm bore, 80mm stroke, M5x0.8 port, built-in magnet, and male M8x1.25 rod thread.
Keep in mind that a standard compact cylinder will not hold a load if air pressure drops or the valve is centered; the piston will drift. The fixed NBR bumper only decelerates the stroke near its end limits and does not function as a locking brake. If your application requires position holding without live pressure, you must integrate an external rod lock or a pilot-operated check valve.
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, with an operating pressure range of 0.15-1.0 MPa.
It uses a fixed NBR bumper at each end to decelerate the piston near the stroke limits; this is not an adjustable air cushion. Additionally, it does not hold its load when air is lost or the valve is centered, so an external rod lock or pilot-operated check valve is required for holding.
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