Airtac SSA Single-Acting Compact Cylinder SSA50X15
The AirTAC Airtac SSA Single-Acting Compact Cylinder SSA50X15 is a genuine single-acting COMPACT cylinder (single acting, push type) with a Ø50mm 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.
- BoreØ50 mm
- Stroke15 mm
- Port sizePT1/4
- Acting typeSingle acting, push type
- Rod threadM10×1.5 (F) / M18×1.5 (B)
- CushionFixed NBR bumper
About the Airtac SSA Single-Acting Compact Cylinder SSA50X15
The AirTAC SSA50X15 is a compact single-acting push-type cylinder where air pressure extends the rod and an internal mechanical spring handles the retraction. Because it only requires a single air line and one solenoid port to drive the motion, plumbing complexity drops alongside valve costs. At 0.5 MPa it generates 874.7 N of net push output, with the return spring counterforce already subtracted from that figure.
The short riveted body significantly reduces axial mounting depth compared to standard round-body alternatives, fitting easily into crowded machinery. This specific configuration lacks a piston magnet, meaning it cannot support position sensing out of the box. End-of-stroke impact is managed solely by a fixed NBR bumper, which decelerates the piston without acting as a lock or adjustable air cushion.
Airtac SSA Single-Acting Compact Cylinder SSA50X15 Technical Specifications
| Model | Airtac SSA Single-Acting Compact Cylinder SSA50X15 |
|---|---|
| Series | SSA compact single-acting cylinder |
| Bore size | Ø50 mm |
| Stroke | 15 mm |
| Acting type | Single acting, push type |
| Port size | PT1/4 |
| Rod end thread | M10×1.5 female / M18×1.5 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 (Ø50mm, Push)
| Pressure | Push force (net) |
|---|---|
| 0.5 MPa | 875 N |
| 0.7 MPa | 1267 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 SSA50X15
| SSA | Compact single acting, push type cylinder series. |
|---|---|
| 50 | 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 SSA50X15 Is Used
Heavy-Duty Part Ejection
Uses the 874.7 N net extension force to positively eject dense machined metal components from a milling fixture.
Stamping Press Clamping
Applies reliable hold-down pressure on thick plate material prior to a stamping operation within a confined tool footprint.
Vertical Lift Gates
Raises lightweight access gates using the 44.6 kg vertical lift capacity, relying on the internal spring to safely lower them when air is removed.
Is the Airtac SSA Single-Acting Compact Cylinder SSA50X15 the Right Cylinder?
When sizing this model, evaluate the neighboring bores to ensure optimal performance. Stepping down, the SSA40 yields 545.6 N net push at 0.5 MPa, while stepping up to the SSA63 provides 1382.6 N at the same pressure. The 874.7 N rating at 0.5 MPa translates to a safe working load of roughly 525 N for a 2:1 margin, or a vertical lift capacity of approximately 44.6 kg.
This SKU features a 50 mm bore, a 15 mm stroke, a PT1/4 port, and a female M10x1.5 rod-end thread. Remember the 30 mm maximum stroke ceiling for this series. Because the spring drives the rod back to rest upon air loss, the SSA50X15 cannot hold a mid-stroke load without external mechanical locking. To add reed or electronic switch sensing, you must select the -S magnet variant.
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 SSA50X15 FAQ
This model provides a net push force of 874.7 N at 0.5 MPa and 1267.4 N at 0.7 MPa. These values already account for the internal return spring resistance, giving you the true usable output.
No. As a single-acting push cylinder, the internal spring retracts the rod when air pressure drops below the 0.2 MPa minimum. It cannot maintain a mid-stroke position without live pressure or an external rod lock.
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