Airtac SSA Single-Acting Compact Cylinder SSA12X5S
The AirTAC Airtac SSA Single-Acting Compact Cylinder SSA12X5S is a genuine single-acting COMPACT cylinder (single acting, push type) with a Ø12mm bore and 5mm 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
- Stroke5 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 SSA12X5S
The AirTAC SSA12X5S is a compact single-acting push-type cylinder where air pressure extends the rod and an internal spring retracts it. It provides 46.5 N of net push at 0.5 MPa, meaning the return spring force is already subtracted from the raw air force. This 12 mm bore unit requires only one air line and one solenoid port, simplifying plumbing and reducing fitting costs in tight fixtures.
The short riveted body minimizes axial mounting depth where larger profile cylinders cannot fit. It features a 6 mm rod, an M5x0.8 port, and a fixed NBR bumper that decelerates the stroke end without adjustable cushioning. The built-in magnet (-S) supports AirTAC reed or electronic switches for position sensing.
Airtac SSA Single-Acting Compact Cylinder SSA12X5S Technical Specifications
| Model | Airtac SSA Single-Acting Compact Cylinder SSA12X5S |
|---|---|
| Series | SSA compact single-acting cylinder |
| Bore size | Ø12 mm |
| Stroke | 5 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 SSA12X5S
| SSA | Compact single acting, push type cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×5 | 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 SSA12X5S Is Used
Micro-Part Ejection
Uses the 46.5 N net push to eject small molded components from a tight fixture without requiring a return air line.
Thin-Wall Clamping
Secures delicate sheet material during a brief machining pass, relying on the spring to retract instantly when air is cut.
PCB Push-Off
Leverages the 5 mm stroke and compact riveted body to clear populated circuit boards from an assembly rail.
Is the Airtac SSA Single-Acting Compact Cylinder SSA12X5S the Right Cylinder?
Size this model by comparing its 46.5 N net push at 0.5 MPa with neighboring bores. Stepping up to the SSA16 yields 80.5 N, while the 12 mm bore is the smallest available. This SSA12X5S configuration has a 5 mm stroke, well within the 30 mm maximum, and uses an M5x0.8 port.
The internal spring drives the rod back to rest upon air release, so it cannot hold a mid-stroke load without live pressure. Operating pressure must be 0.2-1.0 MPa to overcome the spring. This specific SKU includes the magnet option (-S) and uses the default female rod-end thread (M3x0.5).
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 SSA12X5S FAQ
The net push force is 46.5 N at 0.5 MPa and 69.2 N at 0.7 MPa. These figures already account for the internal return spring resistance, giving you a safe working load of roughly 28 N for a 2:1 margin.
No. As a single-acting push cylinder, the internal spring retracts the rod when air is released, requiring a minimum of 0.2 MPa just to overcome the spring. For mid-stroke load holding you need a double-acting SDA with an external rod lock.
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