Airtac SSA Single-Acting Compact Cylinder SSA63X25
The AirTAC Airtac SSA Single-Acting Compact Cylinder SSA63X25 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 SSA63X25
The AirTAC SSA63X25 is a compact single-acting push-type cylinder where air pressure extends the rod and an internal spring retracts it. It delivers a substantial 1382.6 N of net push force at 0.5 MPa, making it the highest output option in this series before moving to larger non-single-acting formats. The quoted force is already net of the return spring, giving you a real design figure rather than raw air pressure.
This model features a 63 mm bore, a 20 mm piston rod, and a PT1/4 port. Its short riveted body saves axial mounting depth in crowded fixtures where larger profile cylinders cannot fit. A fixed NBR bumper decelerates the stroke end to absorb shock, and because it requires only one air line and one solenoid port, plumbing is significantly simplified.
Airtac SSA Single-Acting Compact Cylinder SSA63X25 Technical Specifications
| Model | Airtac SSA Single-Acting Compact Cylinder SSA63X25 |
|---|---|
| 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 SSA63X25
| 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 SSA63X25 Is Used
Heavy-Duty Stamping Ejector
Uses the 1382.6 N net push at 0.5 MPa to eject thick metal blanks from a press die, relying on the spring return to reset quickly for the next cycle.
Automotive Component Clamp
Holds heavy cast parts securely during machining, taking advantage of the 63 mm bore power while fitting into the tight axial footprint of a riveted body.
Pallet Brake Block
Pushes a mechanical stop into position to halt a heavy pallet on a conveyor line, using the single air line for extension and the internal spring for fail-safe retraction.
Is the Airtac SSA Single-Acting Compact Cylinder SSA63X25 the Right Cylinder?
When sizing this model, consider the neighboring bores. Stepping down, the SSA50 provides 874.7 N of net push at 0.5 MPa, which may suffice for lighter ejection tasks. Moving up from the 63 mm bore is not possible within the single-acting SSA family, making this the maximum force option. A safe working load is approximately 830 N, or a vertical lift of about 70.5 kg with a 2:1 margin.
This configuration uses a 25 mm stroke, well under the 30 mm series ceiling. It operates between 0.2 and 1.0 MPa, needing at least 0.2 MPa to overcome the return spring. Because this SKU lacks the S option, it has no piston magnet and cannot accept reed or electronic switches. The rod end features a female M10x1.5 thread, with a male M18x1.5 available via the B option. Remember that the spring drives the rod back upon air loss; it will not hold a mid-stroke load without external live pressure or a mechanical lock.
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 SSA63X25 FAQ
The SSA63X25 provides a net push force of 1382.6 N at 0.5 MPa and 2006.1 N at 0.7 MPa. These figures already account for the resistance of the internal return spring, so they represent the actual usable output force 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 (SSA63X25S). Without the magnet, position sensing is not possible.
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