The AirTAC AirTAC SDA25X35SH Compact Cylinder | 25mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø25mm bore and 35mm 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 SDA25X35SH 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 exceptionally short axial footprint, conserving machine depth where conventional round-body units cannot fit. The -H designation indicates fluororubber (FKM) seals for heightened thermal and oil resistance, while the -S code equips the piston with a magnet for position sensing.
This 25 mm bore unit features a 10 mm piston rod, an M5x0.8 air port, and a 35 mm stroke. It relies on a fixed NBR bumper at each end to decelerate the stroke end rather than an adjustable air cushion. Grooves around the hard-anodized body accept AirTAC reed or electronic switches, enabling precise end-of-stroke detection without adding external bulk.
| Model | AirTAC SDA25X35SH Compact Cylinder | 25mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø25 mm |
| Stroke | 35 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. |
| ×35 | 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).
Actuates a cutting head to singulate printed circuit boards, utilizing the 35 mm stroke and FKM seals to resist flux residues while maintaining precise 245.4 N routing pressure.
Closes a heated sealing jig with 206.2 N retract force, where the compact riveted body minimizes frame protrusion and the piston magnet confirms the press closure for safety interlocks.
Pushes lightweight plastic containers at 30-500 mm/s across a packaging line, with the short axial length allowing tight clearance between parallel conveyor tracks.
When sizing this actuator, evaluate your neighbours: stepping down to the SDA20 yields 157.1 N push at 0.5 MPa, whereas moving up to the SDA32 provides 402.1 N. For this 25 mm 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. If your mechanism must hold a load vertically without live pressure, note that a standard SDA drifts when air is lost—the fixed bumper only decelerates near stroke end and acts as neither a lock nor a brake. An external rod lock or pilot-operated check valve is required for secure holding.
To order, confirm the 25 mm bore, 35 mm stroke, M5x0.8 port, built-in magnet (S), female M5x0.8 rod thread, and FKM seal option (H). The operational speed spans 30-500 mm/s, operating between 0.15-1.0 MPa.
Quick checklist
This 25 mm bore double-acting cylinder provides 245.4 N push and 206.2 N pull at 0.5 MPa, increasing to 343.6 N push and 288.6 N pull at 0.7 MPa. The theoretical maximum push force is 50 kgf at 1.0 MPa. Operating pressure ranges from 0.15-1.0 MPa, with a proof pressure of 1.5 MPa, and the operational speed is 30-500 mm/s.
It uses a fixed NBR bumper at each end to decelerate the piston; this is not an adjustable air cushion, so high-speed applications may need external shock absorbers. The -S option includes a piston magnet compatible with AirTAC reed or electronic switches mounted in the body grooves, and the -H option provides FKM seals for high-temperature or oil-exposed environments.
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