The AirTAC AirTAC SDA25X70SB Compact Cylinder | 25mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø25mm bore and 70mm 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 SDA25X70SB 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 body assembly significantly reduces axial mounting depth, making it the superior choice when machine footprint limitations exclude standard round-body actuators. This specific configuration includes a built-in piston magnet (-S) for position sensing and a male M8x1.25 threaded rod end (-B) for secure load coupling.
Instead of an adjustable air cushion, the piston decelerates at stroke ends via a fixed NBR bumper. This design requires no field tuning, though external shock absorbers should be added for high-energy cycles. The hard-anodized 25 mm bore operates at speeds between 30 and 500 mm/s, and the integrated magnet interfaces directly with AirTAC reed or electronic switches mounted in the body grooves.
| Model | AirTAC SDA25X70SB Compact Cylinder | 25mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø25 mm |
| Stroke | 70 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. |
| ×70 | 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 routing machine gates to sort printed circuit boards, utilizing the 70 mm stroke and 245.4 N push force to positively deflect panels into downstream inspection lanes.
Drives the mechanical flap folders on automated packaging lines, where the short riveted body saves axial depth and the male M8x1.25 rod securely attaches the folding arm.
Pushes lightweight logistics totes from a main conveyor belt onto a spur line, relying on the integrated magnet and reed or electronic switches to confirm divert completion.
When sizing this actuator, evaluate your force margins both ways: 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. With a safe working load of roughly 147 N (about 60% of the 245.4 N capacity), this 25 mm bore is ideal for vertical lifts up to 12.5 kg with a 2:1 safety margin. To finalize your order, confirm the 70 mm stroke, M5x0.8 port, required male M8x1.25 rod thread, and the integrated sensor magnet.
Keep in mind that a standard compact cylinder cannot hold a load if air pressure drops or the valve is centered. The piston will drift, and the fixed NBR bumper only decelerates the stroke near its end without acting as a mechanical lock. If your application demands strict position holding without live pressure, you must incorporate an external rod lock or a pilot-operated check valve.
Quick checklist
This double-acting cylinder generates 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. It operates within a pressure range of 0.15-1.0 MPa, handles speeds of 30-500 mm/s, and functions in temperatures from -20 to +70 C.
It uses a fixed NBR bumper at each end to decelerate the piston, which is not an adjustable air cushion and cannot hold a load on air loss. For position feedback, the built-in -S magnet works with AirTAC reed or electronic switches fitted into the body grooves, and the -B option provides a male M8x1.25 thread on the 10 mm rod for direct mounting.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.