Airtac SSA Single-Acting Compact Cylinder SSA50X30S
The AirTAC Airtac SSA Single-Acting Compact Cylinder SSA50X30S is a genuine single-acting COMPACT cylinder (single acting, push type) with a Ø50mm bore and 30mm 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
- Stroke30 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 SSA50X30S
The AirTAC SSA50X30S is a compact single-acting push-type cylinder where air extends the rod and an internal spring retracts it. It delivers 874.7 N of net push at 0.5 MPa, reaching 1267.4 N at 0.7 MPa. Because the quoted force is already net of the return spring, you can size directly to this figure for reliable short-stroke clamping or ejection.
This 50 mm bore unit features a 20 mm piston rod, a PT1/4 air port, and a built-in magnet for AirTAC reed or electronic switches. The short riveted body saves axial mounting depth in crowded fixtures. It uses a fixed NBR bumper to decelerate the stroke end, which is not an adjustable air cushion. With a 2:1 safety margin, it handles a vertical lift of roughly 44.6 kg.
Airtac SSA Single-Acting Compact Cylinder SSA50X30S Technical Specifications
| Model | Airtac SSA Single-Acting Compact Cylinder SSA50X30S |
|---|---|
| Series | SSA compact single-acting cylinder |
| Bore size | Ø50 mm |
| Stroke | 30 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 SSA50X30S
| SSA | Compact single acting, push type cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×30 | 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 SSA50X30S Is Used
Stamping Feed Ejector
Uses the 874.7 N net push at 0.5 MPa to eject heavy stamped metal parts from a die, with the spring safely retracting the rod during press cycling.
Pallet Load Stopper
Acts as a compact 50 mm bore physical stop for heavy pallets on a conveyor line, saving axial depth while halting loads up to 525 N safely.
Vertical Lift Gate
Raises a lightweight access gate using the 1267.4 N available at 0.7 MPa, lifting roughly 44.6 kg with a 2:1 margin before the spring pulls it shut.
Is the Airtac SSA Single-Acting Compact Cylinder SSA50X30S the Right Cylinder?
When sizing this model, consider the neighboring bores. Stepping down to the SSA40 yields 545.6 N of net push at 0.5 MPa, while stepping up to the SSA63 provides 1382.6 N. This SSA50X30S generates 874.7 N at 0.5 MPa, offering a safe working load of about 525 N for standard duty.
This configuration includes the S magnet code for position sensing and a female M10x1.5 rod-end thread. The maximum standard stroke is 30 mm. Remember that on air loss the internal spring drives the rod to its retracted rest position, meaning it cannot hold a mid-stroke load without external live pressure or a separate locking device.
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 SSA50X30S 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 force, so they represent the actual usable output for your design calculations.
No. The SSA50X30S is a single-acting push cylinder that requires at least 0.2 MPa to overcome the spring. If air is released or lost, the spring drives the rod back to its retracted position. It cannot hold a mid-stroke load without an external locking device.
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