Airtac SSA Single-Acting Compact Cylinder SSA20X30N
The AirTAC SSA Single-Acting Compact Cylinder SSA20X30N 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 SSA20X30N
The AirTAC SSA20X30N is a compact single-acting push-type cylinder where air pressure extends the rod and an internal spring retracts it. It generates 134.1 N of net push at 0.5 MPa, meaning the return spring force is already subtracted to give you a real design figure. The short riveted body saves axial mounting depth where a larger profile cylinder will not fit.
Because the spring handles the return, you only need one air line and one solenoid port to drive the motion. This SKU lacks a piston magnet, so it cannot accept position switches; adding the -S option enables reed or electronic sensing. A fixed NBR bumper decelerates the stroke end, though it is not an adjustable air cushion.
Airtac SSA Single-Acting Compact Cylinder SSA20X30N Technical Specifications
| Model | Airtac SSA Single-Acting Compact Cylinder SSA20X30N |
|---|---|
| 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 SSA20X30N
| 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 SSA20X30N Is Used
Short-Stroke Part Ejector
Uses the full 30mm travel to push machined parts out of a fixture, relying on the 134.1 N net force to overcome friction.
Compact Clamping Pin
Applies pneumatic pressure to hold a workpiece, with the internal spring automatically releasing the clamp when air is removed.
Transfer Gate Diverter
Fits into tight axial spaces along the belt line to push items onto a secondary track using a single air line.
Is the Airtac SSA Single-Acting Compact Cylinder SSA20X30N the Right Cylinder?
When sizing this 20mm bore, check both neighbors: the SSA16 yields 80.5 N at 0.5 MPa, while the SSA25 provides 216.9 N. The 30mm stroke represents the maximum standard limit for this series.
Confirm the 20mm bore, 30mm stroke, and M5x0.8 port. The rod measures 8mm with a female M4x0.7 thread. Operating pressure must be 0.2-1.0 MPa, as 0.2 MPa is required just to overcome the spring. Note that on air loss the spring drives the rod back; it does not hold a mid-stroke load.
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 SSA20X30N FAQ
The net push force is 134.1 N at 0.5 MPa and 196.9 N at 0.7 MPa. These values already account for the internal return spring resistance.
No. With air loss the spring drives the rod to its retracted rest position. It cannot hold a mid-stroke load; use a double-acting SDA with an external rod lock for that.
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Related AirTAC SSA Cylinders
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