The AirTAC AirTAC SDA25X45BH Compact Cylinder | 25mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø25mm bore and 45mm 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 SDA25X45BH 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 short riveted body significantly reduces axial mounting depth compared to round-body alternatives, making it highly effective for tight machine footprints. The unit operates at speeds between 30-500 mm/s and features a hard-anodized bore with a two-way piston seal.
This specific configuration includes a male M8x1.25 threaded piston rod for direct load coupling and utilizes fluororubber (FKM) seals for enhanced thermal and oil resistance. End-stopping is handled by a fixed NBR bumper that decelerates the piston near stroke limits; it is not an adjustable air cushion. Because this SKU lacks the -S magnet option, it cannot support magnetic position sensing.
| Model | AirTAC SDA25X45BH Compact Cylinder | 25mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø25 mm |
| Stroke | 45 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. |
| ×45 | 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 the cutting head on an electronic assembly line, where the 45 mm stroke and compact depth fit neatly within the routing chassis.
Provides 245.4 N of push at 0.5 MPa to close sealing platens, with FKM seals resisting heat transfer from the packaging films.
Uses the male M8x1.25 rod end to drive a deflecting gate on a beverage line, rapidly routing containers at speeds up to 500 mm/s.
When sizing this actuator, stepping down to the SDA20 provides 157.1 N of push at 0.5 MPa, while stepping up to the SDA32 yields 402.1 N. The 25 mm bore here offers a calculated safe working load of roughly 147 N (about 60 percent of its 245.4 N capacity) and can vertically lift approximately 12.5 kg with a 2:1 safety margin. Ensure your ordering essentials match this exact configuration: 25 mm bore, 45 mm stroke, M5x0.8 port, male M8x1.25 rod thread, and FKM seals. Note that a standard actuator 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. An external rod lock or pilot-operated check valve is required to maintain position safely.
Quick checklist
This 25 mm bore double-acting cylinder generates 245.4 N push and 206.2 N pull at 0.5 MPa, 343.6 N push at 0.7 MPa, and a theoretical maximum of 50 kgf at 1.0 MPa. It operates between 0.15-1.0 MPa, handles speeds of 30-500 mm/s, and has a proof pressure of 1.5 MPa.
No, this specific SKU lacks the internal piston magnet, so it cannot trigger AirTAC reed or electronic switches. You would need the -S variant for sensing capabilities. Additionally, end stopping relies on a fixed NBR bumper rather than an adjustable air cushion.
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