Airtac SSA Single-Acting Compact Cylinder SSA12X30
The AirTAC Airtac SSA Single-Acting Compact Cylinder SSA12X30 is a genuine single-acting COMPACT cylinder (single acting, push type) with a Ø12mm 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.
- BoreØ12 mm
- Stroke30 mm
- Port sizeM5×0.8
- Acting typeSingle acting, push type
- Rod threadM3×0.5 (F) / M5×0.8 (B)
- CushionFixed NBR bumper
About the Airtac SSA Single-Acting Compact Cylinder SSA12X30
The AirTAC SSA12X30 is a compact single-acting push-type cylinder where air pressure extends the rod and an internal mechanical spring handles the retraction. Operating at 0.5 MPa, it generates 46.5 N of net push force, or 69.2 N at 0.7 MPa, with the return spring resistance already subtracted from these figures. This makes it a reliable actuator for short-stroke ejection tasks.
Designed with a short riveted body, this unit saves significant axial mounting depth in crowded fixtures where larger profile cylinders cannot fit. It requires only a single M5x0.8 air line and one solenoid port to drive the motion, simplifying plumbing and reducing valve costs. The stroke reaches the 30 mm maximum standard limit for this series, and end-of-travel shock is managed strictly by a fixed NBR bumper rather than an adjustable cushion.
Airtac SSA Single-Acting Compact Cylinder SSA12X30 Technical Specifications
| Model | Airtac SSA Single-Acting Compact Cylinder SSA12X30 |
|---|---|
| Series | SSA compact single-acting cylinder |
| Bore size | Ø12 mm |
| Stroke | 30 mm |
| Acting type | Single acting, push type |
| Port size | M5×0.8 |
| Rod end thread | M3×0.5 female / M5×0.8 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 (Ø12mm, Push)
| Pressure | Push force (net) |
|---|---|
| 0.5 MPa | 47 N |
| 0.7 MPa | 69 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 SSA12X30
| SSA | Compact single acting, push type cylinder series. |
|---|---|
| 12 | 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 SSA12X30 Is Used
Small Part Ejection
Uses the full 30 mm travel to push lightweight molded components out of a tight die, relying on the 46.5 N net force at 0.5 MPa to overcome release friction.
Package Diverting
Acts as a compact diverter arm in a conveyor junction where axial depth is restricted, extending to push small cartons and instantly springing back when air is cut.
Test Fixture Clamping
Secures delicate electronic samples during testing, providing a calculated 28 N safe holding force while fitting easily into densely packed lab equipment.
Is the Airtac SSA Single-Acting Compact Cylinder SSA12X30 the Right Cylinder?
When sizing this 12 mm bore actuator, evaluate the net output against your actual load requirements. The quoted 46.5 N at 0.5 MPa translates to a safe working load of roughly 28 N, or a vertical lift capacity of approximately 2.4 kg when applying a 2:1 safety margin. If the application requires slightly more force, stepping up to the SSA16 provides 80.5 N at 0.5 MPa, though this 12 mm bore remains the most compact option with its 6 mm rod and M3x0.5 female rod-end thread.
This specific configuration has no piston magnet, meaning it cannot support AirTAC reed or electronic switches for position sensing; you would need the -S option code to enable that functionality. Remember that the internal spring actively retracts the rod upon air release, so the cylinder cannot hold a mid-stroke load without live pressure. Operating pressure must be at least 0.2 MPa to overcome the spring, with a maximum allowable pressure of 1.0 MPa.
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 SSA12X30 FAQ
The net push force is 46.5 N at 0.5 MPa and 69.2 N at 0.7 MPa. These values already account for the internal return spring resistance, giving you the true usable output for your design calculations.
No, it is a single-acting push cylinder that requires a minimum of 0.2 MPa to overcome the spring. If air is released, the spring drives the rod back to the retracted rest position; it cannot hold a mid-stroke load without live air pressure.
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