Airtac SSA Single-Acting Compact Cylinder SSA63X25B
The AirTAC Airtac SSA Single-Acting Compact Cylinder SSA63X25B is a genuine single-acting COMPACT cylinder (single acting, push type) with a Ø63mm 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.
- BoreØ63 mm
- Stroke25 mm
- Port sizePT1/4
- Acting typeSingle acting, push type
- Rod threadM10×1.5 (F) / M18×1.5 (B)
- CushionFixed NBR bumper
About the Airtac SSA Single-Acting Compact Cylinder SSA63X25B
The AirTAC SSA63X25B is a 63 mm bore compact single-acting push-type cylinder where air pressure extends the rod and an internal mechanical spring retracts it. It supplies a substantial 1382.6 N of net push force at 0.5 MPa, making it the highest output option in this series. This specific SKU features a male M18x1.5 threaded piston rod end for secure mechanical attachment.
Because the spring handles the return motion, you only need a single air line and one solenoid valve port to operate it, cutting down on plumbing complexity. The short riveted body saves axial mounting depth in tight fixtures, and a fixed NBR bumper decelerates the stroke end to absorb shock without requiring adjustment.
Airtac SSA Single-Acting Compact Cylinder SSA63X25B Technical Specifications
| Model | Airtac SSA Single-Acting Compact Cylinder SSA63X25B |
|---|---|
| Series | SSA compact single-acting cylinder |
| Bore size | Ø63 mm |
| Stroke | 25 mm |
| Acting type | Single acting, push type |
| Port size | PT1/4 |
| Rod end thread | M10×1.5 female / M18×1.5 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 (Ø63mm, Push)
| Pressure | Push force (net) |
|---|---|
| 0.5 MPa | 1383 N |
| 0.7 MPa | 2006 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 SSA63X25B
| SSA | Compact single acting, push type cylinder series. |
|---|---|
| 63 | 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 SSA63X25B Is Used
Heavy-Duty Stamping
Drives short-stroke stamping and forming operations in confined spaces, utilizing its 1382.6 N net push force to deform or mark robust materials securely.
Pallet Ejection
Ejects heavy completed pallets or fixtures from machining centers, relying on the male M18x1.5 rod end for a rigid push interface.
Rigid Clamping
Holds heavy workpieces firmly against a stop during machining, using compressed air to extend and the internal spring to release the clamp quickly.
Is the Airtac SSA Single-Acting Compact Cylinder SSA63X25B the Right Cylinder?
When sizing this model, consider the neighboring bore: stepping down to the SSA50 yields 874.7 N of net push at 0.5 MPa, while the 63 mm bore provides 1382.6 N at the same pressure. A practical safe working load is approximately 830 N, representing about 60 percent of the 0.5 MPa figure, which allows for a 2:1 vertical lift margin of roughly 70.5 kg. This cylinder requires a minimum operating pressure of 0.2 MPa to overcome the internal return spring.
This configuration has a 25 mm stroke, well under the 30 mm maximum standard limit for the series. It uses a PT1/4 port and a male M18x1.5 rod thread. Because this SKU lacks the -S suffix, it has no piston magnet and cannot support magnetic switches. Remember that upon air loss, the spring drives the rod back to its retracted rest position; it will not hold a mid-stroke load without external mechanical locking.
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 SSA63X25B FAQ
The net push force, which already accounts for the internal return spring resistance, is 1382.6 N at 0.5 MPa and 2006.1 N at 0.7 MPa. You must size your application to these real output figures rather than theoretical air pressure calculations.
No, the internal spring drives the rod back to its fully retracted rest position when air is released. It cannot hold a mid-stroke load, and the fixed NBR bumper only decelerates the stroke near the end of travel rather than locking the piston.
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