Airtac SSA Single-Acting Compact Cylinder SSA12X15B
The AirTAC Airtac SSA Single-Acting Compact Cylinder SSA12X15B 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 SSA12X15B
The AirTAC SSA12X15B is a compact single-acting push-type cylinder where air pressure extends the rod and an internal spring handles the retraction. It generates about 46.5 N of net push force at 0.5 MPa, meaning the return spring's resistance is already subtracted from the raw pneumatic force. This 12 mm bore unit uses a short riveted body to minimize axial mounting depth in crowded fixtures.
This specific SKU includes a male M5x0.8 piston rod thread (option B) instead of the default female thread. It operates on a single air line and solenoid port, simplifying plumbing by eliminating the need for a return valve. The bore is hard-anodized and relies on a fixed NBR bumper to decelerate the stroke end, rather than an adjustable air cushion.
Airtac SSA Single-Acting Compact Cylinder SSA12X15B Technical Specifications
| Model | Airtac SSA Single-Acting Compact Cylinder SSA12X15B |
|---|---|
| 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 SSA12X15B
| 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 SSA12X15B Is Used
Small Part Ejection
Pushes lightweight machined components out of a fixture with 46.5 N net force, using the 15 mm stroke to clear the workzone quickly.
Package Diverting
Acts as a compact diverter arm on a tight conveyor pitch, extending to redirect small cartons before the internal spring retracts the rod.
Thin Material Clamping
Secures sheet metal or thin stock during a brief stamping operation, fitting into narrow tooling gaps thanks to the riveted body.
Is the Airtac SSA Single-Acting Compact Cylinder SSA12X15B the Right Cylinder?
When sizing this model, verify the 12 mm bore, 15 mm stroke, M5x0.8 port, and the male M5x0.8 rod thread. The 15 mm stroke sits well below the 30 mm maximum limit for this series. Operating pressure must be 0.2-1.0 MPa, as at least 0.2 MPa is required to overcome the internal spring. A safe working load is approximately 28 N (about 60% of the 46.5 N at 0.5 MPa), yielding a vertical lift capacity of roughly 2.4 kg with a 2:1 safety margin.
If less force is acceptable, note that this 12 mm bore is the smallest available in the SSA series. Sizing up to the next bore, the SSA16 provides 80.5 N of net push at 0.5 MPa. Remember that because the spring drives the retraction, this cylinder cannot hold a mid-stroke load on air loss; it returns to its retracted rest position. For load holding without live pressure, an external rod lock is required.
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 SSA12X15B 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 the actual usable output force.
No, this specific SKU lacks a piston magnet and cannot take a magnetic switch. You would need the SSA12X15BS variant, which adds a magnet compatible with AirTAC reed or electronic switches.
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