Airtac SSA Single-Acting Compact Cylinder SSA20X5SB
The AirTAC Airtac SSA Single-Acting Compact Cylinder SSA20X5SB is a genuine single-acting COMPACT cylinder (single acting, push type) with a Ø20mm bore and 5mm 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.
- BoreØ20 mm
- Stroke5 mm
- Port sizeM5×0.8
- Acting typeSingle acting, push type
- Rod threadM4×0.7 (F) / M6×1.0 (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 SSA20X5SB
The AirTAC SSA20X5SB is a compact single-acting push-type cylinder where air pressure extends the rod and an internal mechanical spring handles the retraction. Delivering 134.1 N of net push force at 0.5 MPa, it is designed for short-stroke tasks in tight fixtures. The quoted output already subtracts the return-spring resistance, giving you a true design figure rather than raw pneumatic energy.
This specific configuration includes a built-in piston magnet for AirTAC reed or electronic switches, plus a male M6x1.0 threaded rod end. The short riveted body significantly reduces axial mounting depth compared to standard round-body alternatives. Because it requires only one air line and a single solenoid port to drive the motion, you cut down on fitting complexity and plumbing costs.
Airtac SSA Single-Acting Compact Cylinder SSA20X5SB Technical Specifications
| Model | Airtac SSA Single-Acting Compact Cylinder SSA20X5SB |
|---|---|
| Series | SSA compact single-acting cylinder |
| Bore size | Ø20 mm |
| Stroke | 5 mm |
| Acting type | Single acting, push type |
| Port size | M5×0.8 |
| Rod end thread | M4×0.7 female / M6×1.0 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 (Ø20mm, Push)
| Pressure | Push force (net) |
|---|---|
| 0.5 MPa | 134 N |
| 0.7 MPa | 197 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 SSA20X5SB
| SSA | Compact single acting, push type cylinder series. |
|---|---|
| 20 | Bore size in mm. |
| ×5 | 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 SSA20X5SB Is Used
Short-Stroke Part Clamping
Uses the 134.1 N net extension to secure light aluminum workpieces in a machining fixture without consuming valuable Z-axis space.
Package Diverter Gate
Pushes lightweight cardboard cartons on a packaging line, relying on the spring return to keep the gate clear when idle.
Component Insertion Press
Deploys the 5 mm travel to press small bearings into housings, taking advantage of the male M6x1.0 rod thread for tool mounting.
Is the Airtac SSA Single-Acting Compact Cylinder SSA20X5SB the Right Cylinder?
When sizing this 20 mm bore unit, evaluate your force needs carefully. Stepping down to the SSA16 yields 80.5 N of net push at 0.5 MPa, while moving up to the SSA25 provides 216.9 N. The SSA20X5SB provides a safe working load of roughly 80 N, which equates to a vertical lift capacity of about 6.8 kg when applying a 2:1 safety margin. Keep in mind the 30 mm maximum standard stroke ceiling for this series.
This model features a 5 mm stroke, an M5x0.8 port, the -S magnet option, and the -B male M6x1.0 rod thread. Remember that the internal spring drives the rod back to rest upon air release; it will not hold a mid-stroke load without live pressure. Operating pressure must sit between 0.2 and 1.0 MPa, as a minimum of 0.2 MPa is required to overcome the internal spring.
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 SSA20X5SB FAQ
The net push force is 134.1 N at 0.5 MPa and 196.9 N at 0.7 MPa. These figures already account for the internal return-spring resistance, meaning they represent the actual usable output for your design calculations.
No, the internal spring drives the rod to its retracted rest position upon air loss. It cannot hold a mid-stroke load. Additionally, a minimum operating pressure of 0.2 MPa is required to overcome the spring and extend the rod.
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