Airtac SSA Single-Acting Compact Cylinder SSA50X20B
The AirTAC SSA Single-Acting Compact Cylinder SSA50X20B is a genuine single-acting COMPACT cylinder (single acting, push type) with a Ø50mm 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.
- BoreØ50 mm
- Stroke20 mm
- Port sizePT1/4
- Acting typeSingle acting, push type
- Rod threadM10×1.5 (F) / M18×1.5 (B)
- CushionFixed NBR bumper
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SSA Single-Acting Compact Cylinder SSA50X20B
The AirTAC SSA50X20B is a compact single-acting push-type cylinder where air pressure extends the rod and an internal mechanical spring handles the retraction. Because it needs just one air line and a single solenoid port to drive the motion, you cut down on fittings and simplify valve requirements. This 50 mm bore unit generates 874.7 N of net push force at 0.5 MPa, a figure that already accounts for the return spring's resistance.
Designed to save axial mounting depth in crowded fixtures, the short riveted body provides a small footprint without relying on tie-rod construction. This specific SKU features a male M18x1.5 piston rod thread and a 20 mm rod diameter. It uses a fixed NBR bumper to decelerate the stroke end, rather than an adjustable air cushion. Since this configuration lacks the -S magnet code, it cannot accept magnetic reed or electronic switches for position sensing.
Airtac SSA Single-Acting Compact Cylinder SSA50X20B Technical Specifications
| Model | Airtac SSA Single-Acting Compact Cylinder SSA50X20B |
|---|---|
| Series | SSA compact single-acting cylinder |
| Bore size | Ø50 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 (Ø50mm, Push)
| Pressure | Push force (net) |
|---|---|
| 0.5 MPa | 875 N |
| 0.7 MPa | 1267 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 SSA50X20B
| SSA | Compact single acting, push type cylinder series. |
|---|---|
| 50 | 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 SSA50X20B Is Used
Heavy-Duty Stamping Ejector
Uses the 874.7 N net push at 0.5 MPa to eject dense metal stampings from a press die, relying on the male M18x1.5 thread for a robust tooling attachment.
Pallet Brake Pressing
Holds pallets firmly against a brake assembly during assembly, taking advantage of the short riveted body to fit within tight vertical machinery clearances.
Package Flattening Station
Applies downward clamping force to flatten bulky cardboard cartons before strapping, with the fixed NBR bumper absorbing the end-of-stroke shock.
Is the Airtac SSA Single-Acting Compact Cylinder SSA50X20B the Right Cylinder?
When sizing this model, compare its 874.7 N net push at 0.5 MPa against adjacent bores: the SSA40 provides 545.6 N, while the SSA63 offers 1382.6 N. Remember that the 20 mm stroke sits well below the 30 mm maximum standard limit for this series.
Confirm the 50 mm bore, 20 mm stroke, and PT1/4 port match your pneumatic layout. This variant includes the -B option for a male M18x1.5 rod end. Operating pressure must be 0.2-1.0 MPa, as at least 0.2 MPa is required to overcome the internal spring. If air pressure is lost, the spring drives the rod back to its retracted rest position; it will not hold a mid-stroke load, so utilize an external rod lock if static holding is required.
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 SSA50X20B FAQ
The net push force is 874.7 N at 0.5 MPa and 1267.4 N at 0.7 MPa. These values already have the return spring force subtracted, giving you the true output available for your application.
No, the internal spring drives the rod back to its fully retracted rest state whenever air pressure drops below the 0.2 MPa minimum. It cannot lock or hold a load mid-stroke 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 are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SSA Cylinders
Request a Quote for Airtac SSA Single-Acting Compact Cylinder SSA50X20B
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.