Airtac SSA Single-Acting Compact Cylinder SSA50X15B
The AirTAC Airtac SSA Single-Acting Compact Cylinder SSA50X15B 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 SSA50X15B
The AirTAC SSA50X15B is a compact single-acting push-type cylinder where air pressure extends the rod and an internal mechanical spring retracts it. Operating at 0.5 MPa, this 50 mm bore unit generates 874.7 N of net push force, which already accounts for the return spring resistance. The short riveted body significantly reduces axial mounting depth, fitting easily into crowded fixtures where longer profile cylinders cannot.
This specific SKU features a male M18x1.5 threaded piston rod end for direct mounting, paired with a fixed PT1/4 air port. Because it requires only one air line and a single solenoid valve port to drive the motion, plumbing is simplified and fitting costs drop. The stroke end is decelerated by a fixed NBR bumper rather than an adjustable cushion, and this particular model lacks a piston magnet so it cannot support position sensing.
Airtac SSA Single-Acting Compact Cylinder SSA50X15B Technical Specifications
| Model | Airtac SSA Single-Acting Compact Cylinder SSA50X15B |
|---|---|
| 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 SSA50X15B
| 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 SSA50X15B Is Used
Short-Stroke Stamping
Applies 874.7 N of net force at 0.5 MPa to press small components or indentations without requiring a full-profile body.
Vertical Lift Stops
Raises a 44.6 kg payload with a 2:1 safety margin before the internal spring takes over to safely lower the load.
Compact Part Ejection
Pushes finished parts out of a tight machining center using the male M18x1.5 rod to thread on a custom contact tip.
Is the Airtac SSA Single-Acting Compact Cylinder SSA50X15B the Right Cylinder?
When sizing this model, compare its 874.7 N net push at 0.5 MPa against adjacent bores: the SSA40 provides 545.6 N, while the SSA63 offers 1382.6 N. A practical safe working load is roughly 525 N, representing about 60 percent of the 0.5 MPa figure, which allows for a 2:1 safety margin yielding a vertical lift capacity near 44.6 kg. The standard stroke ceiling for this series is 30 mm, so this 15 mm unit fits well within limits.
Keep in mind the spring-return behaviour: if air pressure drops below the 0.2 MPa minimum or is removed entirely, the internal spring drives the rod back to its retracted state. It will not hold a mid-stroke load without live pressure. This configuration confirms a 50 mm bore, 15 mm stroke, PT1/4 port, male M18x1.5 rod thread, and no magnet.
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 SSA50X15B FAQ
The net push force is 874.7 N at 0.5 MPa and 1267.4 N at 0.7 MPa. These figures already subtract the internal return spring resistance, giving you the true usable output for your design calculations.
No. As a single-acting push cylinder, the internal spring retracts the rod when air is released. It requires a minimum of 0.2 MPa to overcome the spring and cannot hold a mid-stroke load without live air pressure.
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