The AirTAC AirTAC SDA25X5SH Compact Cylinder | 25mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø25mm bore and 5mm 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 SDA25X5SH is a double-acting single-rod compact cylinder engineered for extremely tight axial spaces. It generates 245.4 N of push force and 206.2 N of pull force at 0.5 MPa, utilizing a 10 mm piston rod and an M5x0.8 port. Because the 5 mm stroke is so brief, the short riveted body drastically reduces overall mounting depth compared to a round-body unit. This specific configuration includes an FKM fluororubber seal for enhanced thermal and oil resistance.
A built-in piston magnet allows integration with AirTAC reed or electronic switches via the grooves around the body. End-of-travel deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, meaning external shock absorbers should be added for high-energy impacts. The female M5x0.8 rod-end thread provides a straightforward load coupling, though side loading should be minimized on this short compact rod.
| Model | AirTAC SDA25X5SH Compact Cylinder | 25mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø25 mm |
| Stroke | 5 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. |
| ×5 | 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 a delicate 5 mm downward probe stroke to contact populated circuit boards, utilizing the 245.4 N force and FKM seals to withstand flux vapors in test fixtures.
Executes a rapid 5 mm pinch motion on vertical form-fill-seal packaging equipment, where the compact riveted body minimizes interference with the film web path.
Delivers a short 5 mm tap to eject small plastic components from an injection mold cavity, relying on the magnetic piston for position confirmation.
When sizing this 25 mm bore, stepping down to the SDA20 yields 157.1 N of push at 0.5 MPa, while stepping up to the SDA32 provides 402.1 N at the same pressure. Based on the 245.4 N output at 0.5 MPa, the safe working load is approximately 147 N (about 60 percent capacity), translating to a vertical lift capability of roughly 12.5 kg with a 2:1 safety margin. Keep in mind that a plain compact cylinder will drift and cannot hold a load if air pressure is lost or the valve is centered; maintaining vertical position requires an external rod lock or a pilot-operated check valve. To order, confirm the 25 mm bore, 5 mm stroke, M5x0.8 port, female rod thread, the S magnet option, and the H fluororubber seal.
Quick checklist
This 25 mm bore double-acting cylinder provides 245.4 N push and 206.2 N pull at 0.5 MPa, 343.6 N push and 288.6 N pull at 0.7 MPa, with a theoretical maximum push of 50 kgf at 1.0 MPa. Operating pressure spans 0.15-1.0 MPa, proof pressure is 1.5 MPa, and the speed range is 30-500 mm/s.
No, the piston will drift if air is lost or the valve is centered; an external rod lock or pilot-operated check valve is required to hold a load. End-of-stroke deceleration relies on a fixed NBR bumper, which is not an adjustable air cushion, so high-speed approaches may need external shock absorption.
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