Airtac SSA Single-Acting Compact Cylinder SSA25X25
The AirTAC Airtac SSA Single-Acting Compact Cylinder SSA25X25 is a genuine single-acting COMPACT cylinder (single acting, push type) with a Ø25mm 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.
- BoreØ25 mm
- Stroke25 mm
- Port sizeM5×0.8
- Acting typeSingle acting, push type
- Rod threadM5×0.8 (F) / M8×1.25 (B)
- CushionFixed NBR bumper
About the Airtac SSA Single-Acting Compact Cylinder SSA25X25
The AirTAC SSA25X25 is a compact single-acting push-type cylinder where air pressure extends the rod and an internal mechanical spring retracts it. It provides 216.9 N of net push force at 0.5 MPa, meaning the return spring resistance is already subtracted from the raw pneumatic power. This yields a safe working load of roughly 130 N, or a vertical lift capacity of about 11.1 kg when applying a 2:1 safety margin.
Designed with a short riveted body, this unit saves axial mounting depth in tight fixtures where larger profile cylinders cannot fit. It requires only one air line and one solenoid port to drive the motion, cutting fitting complexity and valve costs. The stroke ends are controlled by a fixed NBR bumper that absorbs end-shock, rather than an adjustable air cushion.
Airtac SSA Single-Acting Compact Cylinder SSA25X25 Technical Specifications
| Model | Airtac SSA Single-Acting Compact Cylinder SSA25X25 |
|---|---|
| Series | SSA compact single-acting cylinder |
| Bore size | Ø25 mm |
| Stroke | 25 mm |
| Acting type | Single acting, push type |
| Port size | M5×0.8 |
| Rod end thread | M5×0.8 female / M8×1.25 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 (Ø25mm, Push)
| Pressure | Push force (net) |
|---|---|
| 0.5 MPa | 217 N |
| 0.7 MPa | 315 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 SSA25X25
| SSA | Compact single acting, push type cylinder series. |
|---|---|
| 25 | 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 SSA25X25 Is Used
Fixture Clamping
Applies 216.9 N of net clamping pressure at 0.5 MPa to secure aluminum housings during CNC machining.
Part Diverter
Extends 25 mm to push lightweight cardboard cartons off a production line using a single air line.
Flap Folding
Uses its compact riveted body to fit between guide rails, folding packing box flaps before taping.
Is the Airtac SSA Single-Acting Compact Cylinder SSA25X25 the Right Cylinder?
When sizing this 25 mm bore actuator, evaluate your force needs against its 216.9 N net output at 0.5 MPa. If your application requires less thrust, the neighboring SSA20 bore provides 134.1 N at the same pressure; stepping up to the SSA32 yields 346.6 N for heavier pushing. This model features a 25 mm stroke, well within the 30 mm maximum standard limit for the series.
This configuration uses an M5x0.8 port, a 10 mm piston rod, and a female M5x0.8 rod-end thread. Because it lacks the -S suffix, there is no piston magnet for position sensing. Note that on air loss, the internal spring drives the rod back to its retracted state; it cannot hold a mid-stroke load without live pressure or an external 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 SSA25X25 FAQ
The net push force is 216.9 N at 0.5 MPa and 315.1 N at 0.7 MPa. These figures already account for the internal return spring resistance.
No, this specific SKU does not include a piston magnet. You must select the SSA25X25S variant to use AirTAC reed or electronic switches for position detection.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
Related AirTAC SSA Cylinders
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