Airtac SSA Single-Acting Compact Cylinder SSA20X30
The AirTAC Airtac SSA Single-Acting Compact Cylinder SSA20X30 is a genuine single-acting COMPACT cylinder (single acting, push type) with a Ø20mm 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.
- BoreØ20 mm
- Stroke30 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 SSA20X30
The AirTAC SSA20X30 is a compact single-acting push-type cylinder where air pressure extends the rod and an internal spring retracts it. It delivers 134.1 N of net push at 0.5 MPa, making it suitable for short-stroke ejection and clamping tasks. Because the return spring force is already subtracted, you can size directly to this real output figure.
This model features a short riveted body that minimizes axial mounting depth in crowded machinery. It requires only one air line and one solenoid port to drive the motion, reducing fitting complexity. The unit relies on a fixed NBR bumper to absorb end-of-stroke shock rather than an adjustable cushion.
Airtac SSA Single-Acting Compact Cylinder SSA20X30 Technical Specifications
| Model | Airtac SSA Single-Acting Compact Cylinder SSA20X30 |
|---|---|
| Series | SSA compact single-acting cylinder |
| Bore size | Ø20 mm |
| Stroke | 30 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 SSA20X30
| SSA | Compact single acting, push type cylinder series. |
|---|---|
| 20 | 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 SSA20X30 Is Used
Package Diverter
Uses the 134.1 N net push to deflect lightweight cartons on a sorting line without occupying valuable conveyor frame depth.
Stamping Pin Ejector
Clears small stamped parts from a die using the 30 mm stroke, relying on the internal spring to retract the pin when air is cut.
Tote Lid Clamp
Holds a container lid closed during filling, taking advantage of the single air line to simplify valve requirements in tight packing cells.
Is the Airtac SSA Single-Acting Compact Cylinder SSA20X30 the Right Cylinder?
When sizing this 20 mm bore actuator, consider the neighboring options. Stepping down to the SSA16 yields 80.5 N of net push at 0.5 MPa, while moving up to the SSA25 provides 216.9 N. This SSA20X30 model provides a safe working load of roughly 80 N, or a vertical lift capacity of about 6.8 kg with a 2:1 margin.
This configuration has a 30 mm stroke, which is the maximum standard length for the series. It uses an M5x0.8 port, a female M4x0.7 rod-end thread, and operates between 0.2 and 1.0 MPa. Note that this specific SKU lacks a piston magnet, so it cannot support magnetic sensing without upgrading to an -S variant.
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 SSA20X30 FAQ
The net push force is 134.1 N at 0.5 MPa and 196.9 N at 0.7 MPa. These figures already account for the internal return spring resistance, giving you the true usable output for your design.
No, the internal spring drives the rod back to its retracted rest position upon air loss. It cannot hold a mid-stroke load, and you would need a double-acting SDA with an external rod lock for that function.
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Related AirTAC SSA Cylinders
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