Airtac SSA Single-Acting Compact Cylinder SSA16X25SB
The AirTAC Airtac SSA Single-Acting Compact Cylinder SSA16X25SB 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 SSA16X25SB
The AirTAC SSA16X25SB is a compact single-acting push-type cylinder where air pressure extends the rod and an internal mechanical spring handles the retraction. Operating at 0.5 MPa, it generates 80.5 N of net push force, a figure that already accounts for the resistance of the return spring. The short riveted body minimizes axial mounting depth, fitting easily into crowded fixtures where longer profile cylinders cannot. A single air line and one solenoid port drive the motion, cutting down on fitting complexity and valve costs.
This specific configuration includes a built-in piston magnet for position sensing with AirTAC reed or electronic switches, along with a male M5x0.8 threaded rod end for direct mounting. End-of-stroke deceleration relies on a fixed NBR bumper rather than an adjustable air cushion. With a 6 mm piston rod and a 25 mm stroke, it safely handles a working load of roughly 48 N, which translates to a vertical lift capacity of about 4.1 kg with a 2:1 safety margin.
Airtac SSA Single-Acting Compact Cylinder SSA16X25SB Technical Specifications
| Model | Airtac SSA Single-Acting Compact Cylinder SSA16X25SB |
|---|---|
| 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 SSA16X25SB
| 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 SSA16X25SB Is Used
Small Part Ejection
Uses the 80.5 N net push force at 0.5 MPa to reliably eject small machined components from a fixture without requiring complex double-acting plumbing.
Carton Flap Folding
The 25 mm stroke and compact riveted body fit neatly into packaging lines to fold minor flaps, with the male M5x0.8 rod threading directly into custom tooling.
Light-Duty Clamping
Provides secure holding force for light woodworking or assembly tasks, safely clamping loads up to 48 N while the fixed NBR bumper absorbs the end shock.
Is the Airtac SSA Single-Acting Compact Cylinder SSA16X25SB the Right Cylinder?
When sizing this model, compare its 80.5 N net push at 0.5 MPa against adjacent bores: the SSA12 provides 46.5 N, while the SSA20 offers 134.1 N. If your application requires less than 48 N of safe working force, stepping down to the 12 mm bore saves space, but the 16 mm bore is ideal for moderate clamping tasks. The 25 mm stroke sits comfortably below the 30 mm maximum limit for this series. Confirm the bore size, 25 mm stroke, M5x0.8 port, male M5x0.8 rod thread, and the integrated magnet match your assembly requirements.
Keep in mind the spring-return behavior: if air pressure drops below the 0.2 MPa minimum or is removed entirely, the internal spring drives the rod back to its retracted rest position. This cylinder will not hold a mid-stroke load under loss of air pressure. Operating speed ranges from 50 to 500 mm/s, and the operating pressure spans 0.2 to 1.0 MPa.
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 SSA16X25SB FAQ
The net push force is 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 force for your application.
Air pressure extends the rod, while the internal spring retracts it, requiring a minimum of 0.2 MPa to overcome the spring. The included -S magnet allows you to track piston position using AirTAC reed or electronic switches.
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