
The AirTAC Airtac SSA Single-Acting Compact Cylinder SSA40X5SB is a genuine single-acting COMPACT cylinder (single acting, push type) with a Ø40mm bore and 5mm stroke. Air pushes the rod and an internal spring returns it, so one solenoid line drives the motion — ideal for short-stroke clamping and ejection in tight spaces.
The AirTAC SSA40X5SB is a compact single-acting push-type cylinder where air pressure extends the rod and an internal mechanical spring handles the retraction. Driven through a single PT1/8 port, it yields a true net push of 545.6 N at 0.5 MPa. The short riveted body significantly reduces axial mounting depth, fitting easily into crowded fixtures where longer profile bodies cannot.
This specific configuration includes a built-in piston magnet for position sensing alongside a male M14x1.5 threaded rod end. Impact at the stroke terminus is managed strictly by a fixed NBR bumper, which decelerates the piston without acting as an adjustable air cushion or a locking brake.
| Model | Airtac SSA Single-Acting Compact Cylinder SSA40X5SB |
|---|---|
| Series | SSA compact single-acting cylinder |
| Bore size | Ø40 mm |
| Stroke | 5 mm |
| Acting type | Single acting, push type |
| Port size | PT1/8 |
| Rod end thread | M8×1.25 female / M14×1.5 male (B) |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.2 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 50 – 500 mm/s |
| Cushion | Fixed NBR bumper |
| Max standard stroke | Up to 30 mm |
Specifications follow the official AirTAC SDA-family datasheet. Single-acting types start at 0.2 MPa (the spring must be overcome). Confirm against the product label before installation.
| Pressure | Push force (net) |
|---|---|
| 0.5 MPa | 546 N |
| 0.7 MPa | 797 N |
These are NET output forces — the return-spring force is already deducted. Single-acting push only; the spring performs the opposite stroke. Size with a safety margin.
| SSA | Compact single acting, push type cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×5 | Stroke length in mm (single-acting max 30 mm). |
| S | Built-in magnet for magnetic-switch sensing (omit = none). |
| B | Male-thread piston rod (omit = female thread). |
Thread: PT standard. SSA pushes out / spring returns; STA pulls in / spring extends. Related: SDA (double acting), SDAD (double rod), SDAJ (adjustable stroke).
Uses the 545.6 N net push to secure heavy machined components against a stop during milling, utilizing the 5 mm stroke for rapid clamping cycles.
Deploys the male M14x1.5 rod to push packaging flaps into position, with the compact riveted body saving valuable space on tight conveyor framing.
Presses reject diverters outward on automated lines, relying on the fixed NBR bumper to absorb the end-of-stroke shock in high-speed ejection tasks.
When sizing this 40 mm bore, compare its 545.6 N net push at 0.5 MPa against adjacent options: the SSA32 provides 346.6 N, while the SSA50 offers 874.7 N. A practical safe working load is approximately 327 N, translating to a vertical lift capacity of about 27.8 kg when applying a 2:1 safety margin. The 5 mm stroke is well within the 30 mm maximum limit for this series.
Remember that the internal spring actively drives the rod back to rest upon air loss, meaning it cannot hold a mid-stroke load without live pressure or an external locking device. Operating pressure must be at least 0.2 MPa to overcome the return spring. This SSA40X5SB variant features the -S magnet for reed or electronic switches and the -B male M14x1.5 rod thread.
Quick checklist
The net push force is 545.6 N at 0.5 MPa and 796.9 N at 0.7 MPa. These figures already account for the opposing force of the internal return spring.
No. Upon air loss, the internal spring drives the rod back to its retracted rest position. It cannot hold a mid-stroke load; an external rod lock or a double-acting SDA cylinder is required for that function.
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