Airtac SSA Single-Acting Compact Cylinder SSA40X30SB
The AirTAC Airtac SSA Single-Acting Compact Cylinder SSA40X30SB is a genuine single-acting COMPACT cylinder (single acting, push type) with a Ø40mm bore and 30mm 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.
- BoreØ40 mm
- Stroke30 mm
- Port sizePT1/8
- Acting typeSingle acting, push type
- Rod threadM8×1.25 (F) / M14×1.5 (B)
- CushionFixed NBR bumper
About the Airtac SSA Single-Acting Compact Cylinder SSA40X30SB
The AirTAC SSA40X30SB is a compact single-acting push-type cylinder where air pressure extends the rod and an internal mechanical spring retracts it. At 40 mm bore, it generates 545.6 N of net push force at 0.5 MPa. Because the quoted force is already net of the return spring, you can size directly to this real design figure without estimating spring losses.
This configuration includes a built-in piston magnet for position sensing with AirTAC reed or electronic switches. It features a male M14x1.5 piston rod thread and uses a PT1/8 air port. The short riveted body saves axial mounting depth where a round-body or profile cylinder will not fit, while a fixed NBR bumper decelerates the stroke end without requiring adjustment.
Airtac SSA Single-Acting Compact Cylinder SSA40X30SB Technical Specifications
| Model | Airtac SSA Single-Acting Compact Cylinder SSA40X30SB |
|---|---|
| Series | SSA compact single-acting cylinder |
| Bore size | Ø40 mm |
| Stroke | 30 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.
Net Output Force (Ø40mm, Push)
| 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.
Model Code: Airtac SSA Single-Acting Compact Cylinder SSA40X30SB
| SSA | Compact single acting, push type cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×30 | 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).
Where the Airtac SSA Single-Acting Compact Cylinder SSA40X30SB Is Used
Stamping Pin Ejection
Uses the 545.6 N net push at 0.5 MPa to eject stamped metal pins from a die, with the male M14x1.5 rod threading directly into a custom ejector plate.
Bench Fixture Clamping
Secures heavy steel blocks during machining, taking advantage of the short riveted body to minimize axial mounting depth in a crowded workholding grid.
Pallet Diverter Gate
Pushes pallets onto a secondary conveyor line, relying on the internal spring to retract the gate safely when air pressure drops.
Is the Airtac SSA Single-Acting Compact Cylinder SSA40X30SB the Right Cylinder?
When sizing this unit, verify the 40 mm bore and 30 mm stroke meet your spatial limits. If less force is acceptable, the SSA32 bore provides 346.6 N of net push at 0.5 MPa. If your application requires more power, stepping up to the SSA50 yields 874.7 N at 0.5 MPa. This model reaches the 30 mm maximum standard stroke ceiling for the series.
Operating pressure must be 0.2-1.0 MPa, as a minimum of 0.2 MPa is required to overcome the return spring. Confirm the PT1/8 port, the -S magnet option, and the -B male M14x1.5 rod thread suit your tooling. With air released, the spring drives the rod to its retracted rest position; it does not hold a mid-stroke load without live pressure.
Quick checklist
- ✓ Net push force at your working pressure
- ✓ Stroke ≤ 30 mm (single-acting limit)
- ✓ Single air line saves a valve/port
- ✓ Magnet (S) for sensors?
- ✓ Female (blank) or male (B) rod thread
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.2 – 1.0 MPa operating pressure.
- check Remember the spring performs the return stroke.
- check Avoid side load on the short piston rod.
- check Front/rear covers are riveted — do not dismantle.
- check Installation by qualified personnel per AirTAC docs.
Airtac SSA Single-Acting Compact Cylinder SSA40X30SB FAQ
The SSA40X30SB provides a net push force of 545.6 N at 0.5 MPa and 796.9 N at 0.7 MPa. These figures already account for the subtraction of the internal return spring force.
Air pressure extends the rod, while the internal spring retracts it, requiring a minimum of 0.2 MPa operating pressure to overcome the spring. The included -S magnet allows tracking by AirTAC reed or electronic switches, and the fixed NBR bumper absorbs end-of-stroke shock.
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