Airtac SSA Single-Acting Compact Cylinder SSA16X25N
The AirTAC Airtac SSA Single-Acting Compact Cylinder SSA16X25N 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 SSA16X25N
The AirTAC SSA16X25N is a compact single-acting push-type cylinder where air pressure extends the rod and an internal mechanical spring retracts it. This 16 mm bore unit generates 80.5 N of net push force at 0.5 MPa, a figure that already accounts for the return spring resistance. Operating across a 50-500 mm/s speed range, it uses a fixed NBR bumper to absorb end-of-stroke shock rather than an adjustable cushion.
Designed with a short riveted body, this pneumatic actuator minimizes axial mounting depth in crowded machinery. It requires only a single M5x0.8 air line and one solenoid port to drive motion, simplifying plumbing and lowering valve costs. This specific SKU lacks a piston magnet, so it cannot support position sensing without upgrading to the -S variant.
Airtac SSA Single-Acting Compact Cylinder SSA16X25N Technical Specifications
| Model | Airtac SSA Single-Acting Compact Cylinder SSA16X25N |
|---|---|
| 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 SSA16X25N
| 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 SSA16X25N Is Used
Small Part Ejection
Uses the 80.5 N net push at 0.5 MPa to positively eject small stamped components from a die without occupying valuable tooling depth.
Package Diverting
Briefly extends 25 mm to knock lightweight cartons off a production line, relying on the spring to retract instantly when air is cut.
Test Fixture Clamping
Secures delicate laboratory samples with a controlled 48 N safe working load, releasing automatically if pneumatic pressure drops.
Is the Airtac SSA Single-Acting Compact Cylinder SSA16X25N the Right Cylinder?
When sizing this model, compare its 80.5 N net output at 0.5 MPa against adjacent bores: the SSA12 yields 46.5 N, while the SSA20 provides 134.1 N. A practical safe working load is roughly 48 N, allowing a vertical lift of about 4.1 kg with a 2:1 safety margin. The 25 mm stroke sits safely below the 30 mm maximum limit for this series.
Confirm your parameters before ordering: 16 mm bore, 25 mm stroke, M5x0.8 port, female M3x0.5 rod-end thread, and no magnet. Operating pressure must stay between 0.2 and 1.0 MPa, as a minimum of 0.2 MPa is required to overcome the internal spring. Remember that upon air loss the spring forces the rod back to its retracted state; it will not hold a mid-stroke load without external locking mechanisms.
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 SSA16X25N FAQ
This single-acting cylinder provides a net push force of 80.5 N at 0.5 MPa and 120.7 N at 0.7 MPa. These values already subtract the return spring resistance, giving you the true usable output for your design calculations.
No, this specific SKU does not include a piston magnet. To use AirTAC reed or electronic switches, you must select the -S option code. Additionally, it requires at least 0.2 MPa of air pressure to overcome the internal spring and extend the rod.
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