Airtac SSA Single-Acting Compact Cylinder SSA50X15S
The AirTAC Airtac SSA Single-Acting Compact Cylinder SSA50X15S 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 SSA50X15S
The AirTAC SSA50X15S is a compact single-acting push-type cylinder where air pressure extends the rod and an internal spring retracts it. It generates 874.7 N of net push force at 0.5 MPa, meaning the return spring's resistance is already subtracted from the raw pneumatic power. This provides a reliable, real-world design figure rather than a theoretical maximum.
Because it relies on a spring return, you only need one air line and one solenoid port to drive the motion, cutting down on fitting complexity and valve costs. The short riveted body minimizes axial mounting depth in crowded machinery, and the integrated -S piston magnet enables position detection with AirTAC reed or electronic switches.
Airtac SSA Single-Acting Compact Cylinder SSA50X15S Technical Specifications
| Model | Airtac SSA Single-Acting Compact Cylinder SSA50X15S |
|---|---|
| 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 SSA50X15S
| 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 SSA50X15S Is Used
Heavy-Duty Stamping Ejector
Uses the 874.7 N net push at 0.5 MPa to positively eject dense metal stampings from a die, saving axial depth in tight press beds.
Pneumatic Rivet Clamp
Holds thick steel plates firmly in position for riveting, relying on the fixed NBR bumper to absorb the end-of-stroke shock without adjustment.
Pallet Brake Actuator
Deploys a mechanical stop to halt heavy pallets on a conveyor, needing only a single air line to extend the 50 mm bore rod.
Is the Airtac SSA Single-Acting Compact Cylinder SSA50X15S the Right Cylinder?
When sizing this model, compare its 874.7 N net push at 0.5 MPa against adjacent bores. Stepping down to the SSA40 yields 545.6 N, while stepping up to the SSA63 provides 1382.6 N at the same pressure. A practical safe working load is roughly 525 N, which allows a 2:1 safety margin and equates to a vertical lift capacity of about 44.6 kg.
This 50 mm bore configuration features a 20 mm rod, a PT1/4 air port, and a female M10x1.5 rod-end thread. The 15 mm stroke sits well below the 30 mm series maximum. Remember that the spring drives the rod back to rest upon air loss, so the SSA50X15S cannot hold a mid-stroke load without external mechanical locking. Operating pressure must be at least 0.2 MPa to overcome the internal spring.
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 SSA50X15S FAQ
The SSA50X15S provides a net push force of 874.7 N at 0.5 MPa and 1267.4 N at 0.7 MPa. These figures 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 or is removed entirely. It cannot lock or hold a mid-stroke load without an external rod lock device.
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