The AirTAC AirTAC SDA25X100BH 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 SDA25X100BH is a double-acting, single-rod compact cylinder engineered to deliver a 245.4 N push force at 0.5 MPa. Its short riveted body significantly reduces axial mounting depth compared to round-body alternatives, making it highly effective for machinery where space footprint is critical. The bore is hard-anodized and utilizes a two-way piston seal for reliable pneumatic performance.
This specific configuration includes a 100 mm stroke, a male M8x1.25 threaded piston rod for direct load coupling, and high-temperature fluororubber (FKM) seals. It operates at speeds between 30-500 mm/s and relies on a fixed NBR bumper at each end to decelerate the stroke end. Because this SKU lacks the -S magnet option, it cannot accept magnetic position switches.
| Model | AirTAC SDA25X100BH 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).
Actuates a routing flap on a logistics sorting line, utilizing the 100 mm stroke and 245.4 N push force to redirect parcels efficiently within a tight conveyor frame.
Drives a mechanical arm to fold corrugated box flaps prior to sealing, where the male M8x1.25 rod end securely attaches to the folding bracket and FKM seals resist lubricant exposure.
Adjusts a yarn tensioning guide bar in a textile machine, benefiting from the compact riveted body to fit within narrow machinery lanes while operating at speeds up to 500 mm/s.
When sizing this 25 mm bore actuator, consider stepping down to the SDA20 which provides 157.1 N of push force at 0.5 MPa, or moving up to the SDA32 which yields 402.1 N at the same pressure. For this 100 mm stroke, the theoretical safe working load is approximately 147 N (about 60% of the 245.4 N figure), allowing a vertical lift of roughly 12.5 kg with a 2:1 safety margin. Keep in mind that a plain compact cylinder does not hold its load if air pressure is lost or the valve is centered; the piston will drift, so an external rod lock or pilot-operated check valve is required for secure position holding.
To order, confirm the essentials: 25 mm bore, 100 mm stroke, M5x0.8 air port, male M8x1.25 rod thread (B), FKM seals (H), and no sensor magnet. The fixed NBR bumper is not an adjustable air cushion, so for high-energy cycles you should slow the approach or add an external shock absorber.
Quick checklist
This 25 mm bore double-acting cylinder provides a push force of 245.4 N and a pull force of 206.2 N at 0.5 MPa. At 0.7 MPa, the push increases to 343.6 N and the pull to 288.6 N. The theoretical maximum push 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 it supports speeds of 30-500 mm/s.
No, this specific SKU does not include the -S option, meaning it lacks a piston magnet and cannot be used with AirTAC reed or electronic switches. The -S variant adds a magnet to enable sensing. Additionally, this model uses a fixed NBR bumper rather than an adjustable air cushion, so external shock absorption is recommended for high-speed operations.
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