Airtac SSA Single-Acting Compact Cylinder SSA12X15S
The AirTAC Airtac SSA Single-Acting Compact Cylinder SSA12X15S is a genuine single-acting COMPACT cylinder (single acting, push type) with a Ø12mm bore and 15mm 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
- Stroke15 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 SSA12X15S
The AirTAC SSA12X15S is a compact single-acting push-type cylinder where air extends the rod and an internal spring retracts it. It provides 46.5 N net push at 0.5 MPa, with the return-spring force already subtracted. The short riveted body minimizes axial mounting depth, fitting easily into tight fixtures where larger cylinders cannot.
This 12 mm bore unit requires only one air line and one solenoid port to drive motion, simplifying plumbing and cutting valve costs. It includes a built-in piston magnet for position sensing. A fixed NBR bumper decelerates the stroke end, offering reliable end-stop cushioning without adjustable air damping.
Airtac SSA Single-Acting Compact Cylinder SSA12X15S Technical Specifications
| Model | Airtac SSA Single-Acting Compact Cylinder SSA12X15S |
|---|---|
| Series | SSA compact single-acting cylinder |
| Bore size | Ø12 mm |
| Stroke | 15 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 SSA12X15S
| SSA | Compact single acting, push type cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×15 | 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 SSA12X15S Is Used
Small Part Ejection
Uses the 46.5 N push stroke to eject small molded components from a fixture, saving axial space in compact automated machinery.
Package Diverting
Employs the spring-return mechanism to briefly push lightweight cartons onto a secondary line, needing only a single valve to operate.
PC Board Clamping
Applies gentle holding force during assembly, with the internal magnet confirming rod extension before robotic placement.
Is the Airtac SSA Single-Acting Compact Cylinder SSA12X15S the Right Cylinder?
When sizing this model, consider the neighboring bore for your force needs. Stepping up to the SSA16 yields 80.5 N at 0.5 MPa, while this 12 mm bore is the smallest available, providing 46.5 N at 0.5 MPa. With a 2:1 safety margin, the safe working load is roughly 28 N, capable of a 2.4 kg vertical lift.
The standard stroke ceiling is 30 mm, and this 15 mm stroke is ideal for short ejection tasks. Operating pressure must be 0.2-1.0 MPa, as at least 0.2 MPa is required to overcome the spring. This configuration includes the -S magnet for reed or electronic switches and features a 6 mm rod with a female M3x0.5 thread, utilizing an M5x0.8 port.
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 SSA12X15S 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.
No, the spring drives the rod back to rest when air is released, so it cannot hold a mid-stroke load. It also requires a minimum of 0.2 MPa to overcome the spring and extend.
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