Airtac SSA Single-Acting Compact Cylinder SSA32X20SB
The AirTAC Airtac SSA Single-Acting Compact Cylinder SSA32X20SB 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 SSA32X20SB
The AirTAC SSA32X20SB is a compact single-acting push-type cylinder where air pressure extends the rod and an internal spring retracts it. It generates 346.6 N of net push at 0.5 MPa, meaning the return spring force is already subtracted from the raw air force. The short riveted body saves axial mounting depth where a longer cylinder will not fit.
This specific configuration includes a built-in piston magnet for AirTAC reed or electronic switches, plus a male M10x1.25 threaded rod end. A fixed NBR bumper handles end-of-stroke deceleration. With a safe working load around 208 N (about 60% of the 0.5 MPa figure), it can vertically lift roughly 17.7 kg with a 2:1 safety margin.
Airtac SSA Single-Acting Compact Cylinder SSA32X20SB Technical Specifications
| Model | Airtac SSA Single-Acting Compact Cylinder SSA32X20SB |
|---|---|
| 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 SSA32X20SB
| 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 SSA32X20SB Is Used
Short-Stroke Part Ejection
Uses the 346.6 N net push at 0.5 MPa to positively eject machined components from a fixture without needing a powered return line.
Male-Thread Tool Clamping
Leverages the M10x1.25 male rod end to securely mount custom clamps, holding workpieces in place during light assembly operations.
Compact Carton Flap Folding
Fits into tight packaging machinery profiles using its short riveted body, extending 20 mm to fold flaps before taping.
Is the Airtac SSA Single-Acting Compact Cylinder SSA32X20SB the Right Cylinder?
When sizing this 32 mm bore model, consider the SSA25 which yields 216.9 N net push at 0.5 MPa, or step up to the SSA40 providing 545.6 N at the same pressure. This SSA32X20SB features a 20 mm stroke, well under the 30 mm single-acting ceiling. It requires 0.2 to 1.0 MPa operating pressure to overcome the spring.
Because the spring drives the rod back to rest upon air loss, it cannot hold a mid-stroke load without live pressure. This unit has a PT1/8 port, a 12 mm rod, the -S magnet option, and the -B male M10x1.25 rod thread. The speed range spans 50-500 mm/s.
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 SSA32X20SB FAQ
The net push force is 346.6 N at 0.5 MPa and 507.5 N at 0.7 MPa. These figures already account for the internal return spring resistance.
No. As a single-acting push cylinder, the internal spring retracts the rod when air is released. It needs at least 0.2 MPa to overcome the spring and cannot hold a mid-stroke load without live pressure.
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