Airtac SSA Single-Acting Compact Cylinder SSA20X20
The AirTAC Airtac SSA Single-Acting Compact Cylinder SSA20X20 is a genuine single-acting COMPACT cylinder (single acting, push type) with a Ø20mm 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.
- BoreØ20 mm
- Stroke20 mm
- Port sizeM5×0.8
- Acting typeSingle acting, push type
- Rod threadM4×0.7 (F) / M6×1.0 (B)
- CushionFixed NBR bumper
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SSA Single-Acting Compact Cylinder SSA20X20
The AirTAC SSA20X20 is a compact single-acting push-type cylinder where air pressure extends the rod and an internal spring retracts it. It provides 134.1 N of net push at 0.5 MPa, with the return spring force already subtracted for accurate sizing. This 20 mm bore, 20 mm stroke model is normally retracted at rest.
Its short riveted body saves axial mounting depth in crowded fixtures where longer profile cylinders cannot fit. The unit relies on a fixed NBR bumper to decelerate the stroke end, meaning it is not an adjustable air cushion. Because this specific SKU lacks the -S option, it has no piston magnet and cannot support position sensing.
Airtac SSA Single-Acting Compact Cylinder SSA20X20 Technical Specifications
| Model | Airtac SSA Single-Acting Compact Cylinder SSA20X20 |
|---|---|
| Series | SSA compact single-acting cylinder |
| Bore size | Ø20 mm |
| Stroke | 20 mm |
| Acting type | Single acting, push type |
| Port size | M5×0.8 |
| Rod end thread | M4×0.7 female / M6×1.0 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 (Ø20mm, Push)
| Pressure | Push force (net) |
|---|---|
| 0.5 MPa | 134 N |
| 0.7 MPa | 197 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 SSA20X20
| SSA | Compact single acting, push type cylinder series. |
|---|---|
| 20 | 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 SSA20X20 Is Used
Part Ejection
Uses the 134.1 N net push to eject small machined components from a fixture before the conveyor belt engages.
Light Clamping
Applies safe holding force of approximately 80 N to secure thin sheet metal during a light assembly process.
Flap Folding
Extends 20 mm to tuck carton flaps prior to sealing, relying on the internal spring to retract instantly when air stops.
Is the Airtac SSA Single-Acting Compact Cylinder SSA20X20 the Right Cylinder?
When sizing this actuator, the 134.1 N net push at 0.5 MPa yields a safe working load of roughly 80 N, or a vertical lift of about 6.8 kg with a 2:1 margin. If your application requires less force, the smaller SSA16 bore provides 80.5 N at 0.5 MPa. For heavier ejection tasks, stepping up to the SSA25 bore offers 216.9 N at 0.5 MPa.
This configuration features a 20 mm stroke (well under the 30 mm series ceiling), an 8 mm rod, and an M5x0.8 port. It requires 0.2 to 1.0 MPa of operating pressure to overcome the spring. Remember that on air loss the spring drives the rod back to rest; it will not hold a mid-stroke load without live pressure or an external lock.
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 SSA20X20 FAQ
This model delivers a net push of 134.1 N at 0.5 MPa and 196.9 N at 0.7 MPa. These figures already subtract the return spring force, giving you a real design value for your pushing application.
No, this specific SKU does not include a piston magnet. You must select the -S option variant to use AirTAC reed or electronic switches for position detection.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Related AirTAC SSA Cylinders
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