The AirTAC AirTAC SDA32X40SB Compact Cylinder | 32mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø32mm bore and 40mm 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 SDA32X40SB is a double-acting, single-rod compact cylinder engineered to deliver 402.1 N of push force and 345.6 N of pull force at 0.5 MPa. Its riveted assembly significantly reduces axial mounting depth, making it ideal for machinery where a standard round-body unit would protrude too far. This specific configuration includes a built-in piston magnet (-S) for position sensing and a male-thread piston rod (-B).
The 32 mm bore features a hard-anodized inner wall and uses a PT1/8 port. End-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, meaning high-speed approaches may require external shock absorption. The male M10x1.25 rod end provides a robust mechanical coupling for your load, though side loading should be minimized on this short stroke design.
| Model | AirTAC SDA32X40SB Compact Cylinder | 32mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø32 mm |
| Stroke | 40 mm |
| Acting type | Double acting |
| Port size | PT1/8 |
| Rod end thread | M6×1.0 female / M10×1.25 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 | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 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. |
|---|---|
| 32 | Bore size in mm. |
| ×40 | 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).
Secures aluminum workpieces in a CNC milling vise using the male M10x1.25 rod end, providing 402.1 N of clamping force without extending the machine envelope.
Actuates folding arms on a packaging line to close corrugated box flaps, where the short riveted body saves valuable axial space along the conveyor.
Pushes electronic connectors into printed circuit boards with precise 40 mm travel, utilizing the built-in magnet to trigger an electronic switch for cycle confirmation.
When sizing this unit, consider stepping down to the SDA25, which provides 245.4 N of push at 0.5 MPa, or stepping up to the SDA40, which yields 628.3 N at the same pressure. A safe working load for this 32 mm bore is approximately 241 N (about 60% of the 402.1 N figure), translating to a vertical lift capacity of roughly 20.5 kg with a 2:1 safety margin. To order, confirm the 32 mm bore, 40 mm stroke, PT1/8 port, the required -S magnet for reed or electronic switches, and the -B male M10x1.25 rod thread.
Keep in mind that a standard compact cylinder does not hold its position if air pressure is lost or the directional valve is centered. The piston will drift, and the fixed NBR bumper only decelerates the stroke near its end without acting as a lock. If your application requires static load holding, you must integrate an external rod lock or a pilot-operated check valve.
Quick checklist
This double-acting cylinder generates 402.1 N push and 345.6 N pull at 0.5 MPa, and 563 N push at 0.7 MPa. The theoretical maximum push force is 82 kgf at 1.0 MPa. It operates between 0.15-1.0 MPa, with a proof pressure of 1.5 MPa, and runs at speeds of 30-500 mm/s.
It relies on a fixed NBR bumper at each end to decelerate the piston, which is not an adjustable air cushion. For high energy cycles, add an external shock absorber. Additionally, it does not hold a load if air is lost; the piston drifts, so an external rod lock or pilot-operated check valve is required for position holding.
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