The AirTAC AirTAC SDA40X100 Compact Cylinder | 40mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø40mm bore and 100mm stroke, PT1/8 air ports and a riveted short body that saves mounting depth. Sensor slots around the body accept magnetic switches for position sensing.
The AirTAC SDA40X100 is a double-acting single-rod compact cylinder engineered to deliver 628.3 N of push force and 527.8 N of pull force at 0.5 MPa. Its riveted assembly merges the barrel, rear cover, piston, and 16 mm rod into a remarkably short unit, saving valuable axial mounting depth where a traditional round-body actuator would not fit. The hard-anodized bore minimizes friction, while the integrated PT1/8 ports ensure reliable pneumatic supply.
This specific SKU lacks a piston magnet and therefore cannot support position sensing; adding the -S option enables reed or electronic switches via the body grooves. Travel termination relies on a fixed NBR bumper at each end, which absorbs impact energy but is not a field-adjustable air cushion. Operating efficiently between 30-500 mm/s, it handles a safe working load of roughly 377 N or a vertical lift of about 32 kg with a 2:1 safety margin.
| Model | AirTAC SDA40X100 Compact Cylinder | 40mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø40 mm |
| Stroke | 100 mm |
| Acting type | Double acting |
| Port size | PT1/8 |
| Rod end thread | M8×1.25 female / M14×1.5 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 | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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. |
|---|---|
| 40 | 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, using the 100 mm stroke to redirect parcels efficiently into secondary chutes.
Drives a mechanical arm to tuck side flaps on a continuous packaging conveyor prior to top sealing, fitting neatly within tight machine frames.
Pushes molded plastic parts out of an injection molding fixture, leveraging the 628.3 N extend force to break the initial grip of the cavity.
When sizing this 40 mm bore, evaluate your force requirements carefully: stepping down to the SDA32 provides 402.1 N of push at 0.5 MPa, while stepping up to the SDA50 yields 981.7 N. This SDA40X100 configuration features a 100 mm stroke (well within the 130 mm standard limit for this bore), a female M8x1.25 rod-end thread, and no sensor magnet. If your mechanism must maintain vertical position during air loss or valve centering, note that this actuator will drift, as the fixed bumper only decelerates near the stroke end rather than locking the load—an external rod lock or pilot-operated check valve is required for holding.
Quick checklist
At 0.5 MPa, this double-acting cylinder provides 628.3 N of push and 527.8 N of pull. At 0.7 MPa, the push increases to 879.6 N. The theoretical maximum push is 128 kgf at 1.0 MPa, which is the maximum operating pressure.
No adjustable air cushion is available; it uses a fixed NBR bumper to decelerate at the stroke ends. Additionally, this specific SKU lacks a piston magnet, so it cannot accept reed or electronic switches unless you order the -S variant.
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