Airtac SSA Single-Acting Compact Cylinder SSA32X20S
The AirTAC Airtac SSA Single-Acting Compact Cylinder SSA32X20S is a genuine single-acting COMPACT cylinder (single acting, push type) with a Ø32mm bore and 20mm 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.
- BoreØ32 mm
- Stroke20 mm
- Port sizePT1/8
- Acting typeSingle acting, push type
- Rod threadM6×1.0 (F) / M10×1.25 (B)
- CushionFixed NBR bumper
About the Airtac SSA Single-Acting Compact Cylinder SSA32X20S
The AirTAC SSA32X20S is a compact single-acting push-type cylinder where air extends the rod and an internal spring retracts it. It provides 346.6 N of net push at 0.5 MPa and 507.5 N at 0.7 MPa. Because the return spring force is already subtracted, these figures represent the true usable thrust for your fixture.
This 32 mm bore unit features a short riveted body that minimizes axial mounting depth in crowded machinery. A fixed NBR bumper decelerates the stroke end, and the built-in magnet (-S) supports position sensing with AirTAC reed or electronic switches.
Airtac SSA Single-Acting Compact Cylinder SSA32X20S Technical Specifications
| Model | Airtac SSA Single-Acting Compact Cylinder SSA32X20S |
|---|---|
| Series | SSA compact single-acting cylinder |
| Bore size | Ø32 mm |
| Stroke | 20 mm |
| Acting type | Single acting, push type |
| Port size | PT1/8 |
| Rod end thread | M6×1.0 female / M10×1.25 male (B) |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.2 – 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 (Ø32mm, Push)
| Pressure | Push force (net) |
|---|---|
| 0.5 MPa | 347 N |
| 0.7 MPa | 508 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 SSA32X20S
| SSA | Compact single acting, push type cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×20 | 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 SSA32X20S Is Used
Stamping Pin Ejection
Uses the 346.6 N net push to eject stamped pins from a die, with the internal spring ensuring the rod clears the tooling when air is removed.
Bottle Lane Diversion
Short 20 mm stroke extends a guide to sort bottles on a conveyor, saving axial depth in tight transfer sections.
Carton Flap Clamping
Applies holding pressure to keep carton flaps aligned during taping, relying on the fixed NBR bumper to absorb the end shock.
Is the Airtac SSA Single-Acting Compact Cylinder SSA32X20S the Right Cylinder?
When sizing this model, compare its 346.6 N @0.5 MPa thrust against adjacent bores: the SSA25 yields 216.9 N, while the SSA40 provides 545.6 N. This SSA32X20S configuration pairs a 20 mm stroke with a PT1/8 port, a 12 mm rod, and a female M6x1.0 rod-end thread. A safe working load is roughly 208 N, allowing a vertical lift of about 17.7 kg with a 2:1 margin.
Remember the 30 mm maximum standard stroke ceiling for this series. Because air pressure extends the rod and the spring retracts it, the cylinder cannot hold a mid-stroke load without live pressure; use an external rod lock for holding. Operating pressure must be 0.2-1.0 MPa, needing at least 0.2 MPa to overcome the spring.
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 SSA32X20S FAQ
The net push force is 346.6 N at 0.5 MPa and 507.5 N at 0.7 MPa. These values already account for the internal return spring resistance, giving you the true usable output.
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 works with AirTAC reed or electronic switches for end-of-stroke detection.
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