Airtac SSA Single-Acting Compact Cylinder SSA63X20B
The AirTAC Airtac SSA Single-Acting Compact Cylinder SSA63X20B is a genuine single-acting COMPACT cylinder (single acting, push type) with a Ø63mm bore and 20mm 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
- Stroke20 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 SSA63X20B
The AirTAC SSA63X20B is a compact single-acting push-type cylinder where air extends the rod and an internal spring retracts it. It delivers a true 1382.6 N net push at 0.5 MPa, meaning the return spring force is already subtracted to give you a real design figure. A single air line and solenoid port drive the motion, cutting plumbing complexity in tight fixtures.
This 63 mm bore unit features a 20 mm stroke and a male M18x1.5 threaded piston rod. The short riveted body saves axial mounting depth where a round-body unit will not fit. A fixed NBR bumper decelerates the stroke end, though it is not an adjustable air cushion.
Airtac SSA Single-Acting Compact Cylinder SSA63X20B Technical Specifications
| Model | Airtac SSA Single-Acting Compact Cylinder SSA63X20B |
|---|---|
| Series | SSA compact single-acting cylinder |
| Bore size | Ø63 mm |
| Stroke | 20 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 SSA63X20B
| SSA | Compact single acting, push type cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×20 | 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 SSA63X20B Is Used
Heavy Stamping Ejector
Uses the 1382.6 N net push at 0.5 MPa to eject dense metal blanks from a press die in a confined tooling space.
Pallet Deflector
Pushes heavy pallets onto a secondary conveyor line, relying on the male M18x1.5 rod for robust mechanical attachment.
Vertical Lift Gate
Raises a 70.5 kg guard gate with a 2:1 safety margin, letting the internal spring safely lower it when air is removed.
Is the Airtac SSA Single-Acting Compact Cylinder SSA63X20B the Right Cylinder?
When sizing this model, verify the 20 mm stroke is within the 30 mm ceiling for this series. Stepping down, the SSA50 bore provides 874.7 N net push at 0.5 MPa, making the 63 mm bore necessary for heavier ejection tasks. Operating pressure must be 0.2-1.0 MPa, as at least 0.2 MPa is required to overcome the spring.
Confirm the PT1/4 port and the male M18x1.5 rod thread for your mounting interface. This SKU lacks the -S magnet, so it cannot accept position switches. Because the spring drives the rod to its retracted rest position on air loss, it does not hold a mid-stroke load; use an external rod lock if needed.
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 SSA63X20B FAQ
This model provides a net push force of 1382.6 N at 0.5 MPa and 2006.1 N at 0.7 MPa. These values already account for the internal return spring resistance.
No, this specific SKU does not include the -S magnet option, so it cannot accept reed or electronic switches. You would need the -S variant for position sensing.
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