Airtac SSA Single-Acting Compact Cylinder SSA16X25B
The AirTAC Airtac SSA Single-Acting Compact Cylinder SSA16X25B is a genuine single-acting COMPACT cylinder (single acting, push type) with a Ø16mm bore and 25mm 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.
- BoreØ16 mm
- Stroke25 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 SSA16X25B
The AirTAC SSA16X25B is a compact single-acting push-type cylinder where air pressure extends the rod and an internal mechanical spring retracts it. It generates 80.5 N of net push at 0.5 MPa, providing a safe working load of roughly 48 N for reliable operation. This bore features a 6 mm piston rod and a male M5x0.8 thread on the rod end.
Because the spring handles the return motion, you only need a single air line and one solenoid port to drive the action. The short riveted body minimizes axial mounting depth in tight fixtures, while a fixed NBR bumper decelerates the stroke end. This specific SKU lacks a piston magnet, so it cannot accept magnetic switches.
Airtac SSA Single-Acting Compact Cylinder SSA16X25B Technical Specifications
| Model | Airtac SSA Single-Acting Compact Cylinder SSA16X25B |
|---|---|
| Series | SSA compact single-acting cylinder |
| Bore size | Ø16 mm |
| Stroke | 25 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 (Ø16mm, Push)
| Pressure | Push force (net) |
|---|---|
| 0.5 MPa | 81 N |
| 0.7 MPa | 121 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 SSA16X25B
| SSA | Compact single acting, push type cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×25 | 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 SSA16X25B Is Used
Small Part Ejection
Uses the 80.5 N net push at 0.5 MPa to positively eject small molded components from a tight fixture without requiring a return air line.
Package Diverter
Employs the 25 mm stroke and male M5x0.8 rod to deflect lightweight cartons on a conveyor, relying on the internal spring for fast retraction.
Test Fixture Clamping
Secures delicate samples in a lab jig using a safe working load of 48 N, saving axial space with its compact riveted body.
Is the Airtac SSA Single-Acting Compact Cylinder SSA16X25B the Right Cylinder?
When sizing this unit, consider the neighboring bores: stepping down to the SSA12 yields 46.5 N at 0.5 MPa, while moving up to the SSA20 provides 134.1 N at 0.5 MPa. This 16 mm bore strikes a balance for light ejection tasks, offering a vertical lift capacity of approximately 4.1 kg with a 2:1 safety margin. The 25 mm stroke sits well below the 30 mm maximum standard limit for this series.
Confirm the 16 mm bore, 25 mm stroke, M5x0.8 port, and male M5x0.8 rod thread suit your mounting hardware. Operating pressure must be 0.2-1.0 MPa, as at least 0.2 MPa is required to overcome the return spring. Remember that on air loss the spring drives the rod back to rest; it does not hold a mid-stroke load.
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 SSA16X25B FAQ
The net push force is 80.5 N at 0.5 MPa and 120.7 N at 0.7 MPa. These figures already account for the internal return spring resistance, giving you the true usable output.
No, this specific SKU does not include a piston magnet. You must select the -S option variant to enable sensing with AirTAC reed or electronic switches.
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