Airtac SSA Single-Acting Compact Cylinder SSA25X30
The AirTAC Airtac SSA Single-Acting Compact Cylinder SSA25X30 is a genuine single-acting COMPACT cylinder (single acting, push type) with a Ø25mm 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.
- BoreØ25 mm
- Stroke30 mm
- Port sizeM5×0.8
- Acting typeSingle acting, push type
- Rod threadM5×0.8 (F) / M8×1.25 (B)
- CushionFixed NBR bumper
About the Airtac SSA Single-Acting Compact Cylinder SSA25X30
The AirTAC SSA25X30 is a compact single-acting push-type cylinder where air pressure extends the rod and an internal spring retracts it. Operating at 0.5 MPa, it generates 216.9 N of net push force, which already accounts for the return spring resistance. This 25 mm bore, 30 mm stroke model reaches the maximum standard stroke limit for the series.
Its short riveted body significantly reduces axial mounting depth compared to traditional round-body cylinders, fitting easily into crowded fixtures. Because it only requires one air line and one solenoid port to drive the motion, plumbing is simplified and fitting costs drop. The bore dictates a 10 mm rod diameter and an M5x0.8 port, while a fixed NBR bumper absorbs end-of-stroke shock without offering adjustable cushioning.
Airtac SSA Single-Acting Compact Cylinder SSA25X30 Technical Specifications
| Model | Airtac SSA Single-Acting Compact Cylinder SSA25X30 |
|---|---|
| Series | SSA compact single-acting cylinder |
| Bore size | Ø25 mm |
| Stroke | 30 mm |
| Acting type | Single acting, push type |
| Port size | M5×0.8 |
| Rod end thread | M5×0.8 female / M8×1.25 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 (Ø25mm, Push)
| Pressure | Push force (net) |
|---|---|
| 0.5 MPa | 217 N |
| 0.7 MPa | 315 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 SSA25X30
| SSA | Compact single acting, push type cylinder series. |
|---|---|
| 25 | 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 SSA25X30 Is Used
Short-Stroke Part Ejection
Uses the full 30 mm stroke and 216.9 N net push at 0.5 MPa to positively eject machined components from a tight fixture, saving axial space.
Transfer Line Diverter
Extends to push lightweight cartons off a main conveyor belt, relying on the internal spring to retract cleanly when air pressure drops.
Compact Clamping Station
Applies a safe holding force of roughly 130 N to secure a workpiece during assembly, fitting easily into multi-tool machining centers.
Is the Airtac SSA Single-Acting Compact Cylinder SSA25X30 the Right Cylinder?
When sizing this model, consider the neighboring bores: stepping down to the SSA20 yields 134.1 N net push at 0.5 MPa, while stepping up to the SSA32 provides 346.6 N. A practical safe working load for this 25 mm bore is roughly 130 N, which maintains a 2:1 safety margin and can vertically lift about 11.1 kg. The 30 mm stroke represents the absolute ceiling for standard SSA models; longer distances require a different approach.
Remember that the internal spring drives the rod back to its rest position upon air loss, meaning it cannot hold a mid-stroke load without live pressure. This specific configuration has no piston magnet (no -S suffix) and therefore cannot support reed or electronic switches. It features a female rod-end thread (M5x0.8) and an M5x0.8 air port, requiring an operating pressure of 0.2-1.0 MPa to function properly.
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 SSA25X30 FAQ
The SSA25X30 provides 216.9 N of net push force at 0.5 MPa and 315.1 N at 0.7 MPa. These figures already subtract the internal return spring resistance, giving you a real design value for your application.
No, this specific SKU lacks the -S suffix, so it has no piston magnet and cannot take reed or electronic switches. The cylinder also requires a minimum of 0.2 MPa operating pressure to overcome the return spring and extend the rod.
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