Airtac SSA Single-Acting Compact Cylinder SSA25X25SB
The AirTAC Airtac SSA Single-Acting Compact Cylinder SSA25X25SB 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 SSA25X25SB
The AirTAC SSA25X25SB is a compact single-acting push-type cylinder where air extends the rod and an internal spring retracts it. It generates 216.9 N of net push at 0.5 MPa, meaning the quoted force already accounts for the return spring resistance. The short riveted body minimizes axial mounting depth, fitting easily into crowded fixtures where longer profile cylinders cannot.
This specific configuration includes a built-in piston magnet for position sensing and a male M8x1.25 threaded rod end. A single air line and solenoid port drive the motion, cutting plumbing complexity. End-of-stroke shock is handled by a fixed NBR bumper, which decelerates the piston but is not an adjustable air cushion.
Airtac SSA Single-Acting Compact Cylinder SSA25X25SB Technical Specifications
| Model | Airtac SSA Single-Acting Compact Cylinder SSA25X25SB |
|---|---|
| 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 SSA25X25SB
| 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 SSA25X25SB Is Used
Fixture Clamping
Applies 216.9 N of net clamping force at 0.5 MPa to secure workpieces during machining operations.
Parts Diverting
Uses its 25 mm extension to push products cleanly off a conveyor belt into a secondary packaging lane.
Vertical Ejection
Lifts finished parts weighing up to 11.1 kg out of a mold cavity before the spring safely retracts the rod.
Is the Airtac SSA Single-Acting Compact Cylinder SSA25X25SB the Right Cylinder?
When sizing this model, compare it to neighboring bores: an SSA20 provides 134.1 N at 0.5 MPa, while an SSA32 offers 346.6 N. This 25 mm bore strikes a balance, yielding a safe working load of roughly 130 N or a vertical lift capacity of about 11.1 kg with a 2:1 safety margin. Keep the 30 mm standard stroke ceiling in mind; this 25 mm stroke fits well within limits.
Because it is spring-return, the SSA25X25SB does not hold a mid-stroke load if air pressure drops. Operating pressure must be at least 0.2 MPa to overcome the spring. This unit features the -S magnet for reed or electronic switches, the -B male M8x1.25 rod thread, and an M5x0.8 port.
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 SSA25X25SB FAQ
The net push force is 216.9 N at 0.5 MPa and 315.1 N at 0.7 MPa. These figures already subtract the internal return spring resistance, giving you the true usable output for your design calculations.
No, it is a single-acting push cylinder where an internal spring retracts the rod when air is released. It requires at least 0.2 MPa to overcome the spring and cannot hold a mid-stroke load without live pressure or an external locking device.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SSA Cylinders
Request a Quote for Airtac SSA Single-Acting Compact Cylinder SSA25X25SB
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.