Airtac SSA Single-Acting Compact Cylinder SSA12X15
The AirTAC Airtac SSA Single-Acting Compact Cylinder SSA12X15 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 SSA12X15
The AirTAC SSA12X15 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 yields a safe working load of roughly 28 N, or a vertical lift capacity of about 2.4 kg with a 2:1 safety margin.
Its short riveted body saves axial mounting depth where a round-body or profile cylinder will not fit. Because it is single-acting, only one air line and one solenoid port are needed to drive the motion, which cuts fitting complexity and saves valve space. This unit has no piston magnet, so it cannot accept a position switch; adding the -S option enables reed or electronic sensing.
Airtac SSA Single-Acting Compact Cylinder SSA12X15 Technical Specifications
| Model | Airtac SSA Single-Acting Compact Cylinder SSA12X15 |
|---|---|
| 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 SSA12X15
| 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 SSA12X15 Is Used
Small Part Ejection
Uses the 46.5 N net push at 0.5 MPa to eject small machined components from a fixture without needing a return air line.
Light Transfer Push
Pushes lightweight packages on a conveyor with a 15 mm stroke, relying on the internal spring to retract automatically.
Test Fixture Clamping
Secures delicate samples in a laboratory test jig using a safe working load of approximately 28 N to prevent damage.
Is the Airtac SSA Single-Acting Compact Cylinder SSA12X15 the Right Cylinder?
When sizing this 12 mm bore, consider the next size up: the SSA16 provides 80.5 N of net push at 0.5 MPa if your application requires more force. The 12 mm bore uses an M5x0.8 port, a 6 mm rod, and a female M3x0.5 rod-end thread. The maximum standard stroke for this series is 30 mm, so this 15 mm stroke is well within range.
Operating pressure must be 0.2-1.0 MPa, as at least 0.2 MPa is required to overcome the return spring. Remember that on air loss the spring drives the rod to its retracted rest position; it does not hold a mid-stroke load. End-of-stroke deceleration is handled by a fixed NBR bumper, not an adjustable cushion.
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 SSA12X15 FAQ
The SSA12X15 delivers 46.5 N of net push at 0.5 MPa and 69.2 N at 0.7 MPa. These figures already account for the internal return spring force.
No, this specific SKU lacks a piston magnet and cannot accept sensing. You must select the -S option code to add a magnet for AirTAC reed or electronic switches.
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