Airtac SSA Single-Acting Compact Cylinder SSA40X5N
The AirTAC Airtac SSA Single-Acting Compact Cylinder SSA40X5N is a genuine single-acting COMPACT cylinder (single acting, push type) with a Ø40mm 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.
- BoreØ40 mm
- Stroke5 mm
- Port sizePT1/8
- Acting typeSingle acting, push type
- Rod threadM8×1.25 (F) / M14×1.5 (B)
- CushionFixed NBR bumper
About the Airtac SSA Single-Acting Compact Cylinder SSA40X5N
The AirTAC SSA40X5 is a compact single-acting push-type cylinder where air pressure extends the rod and an internal spring retracts it. This model provides 545.6 N of net push force at 0.5 MPa, with the return spring resistance already subtracted from the total. Its short 5 mm stroke is ideal for high-cycle clamping or ejecting tasks that require minimal travel distance.
The riveted body design significantly reduces axial mounting depth compared to standard round-body alternatives, fitting easily into crowded fixtures. Equipped with a fixed NBR bumper at each end, it absorbs end-of-stroke shock without relying on adjustable air cushions. This unit lacks a piston magnet, so it cannot support position sensing without upgrading to the -S variant.
Airtac SSA Single-Acting Compact Cylinder SSA40X5N Technical Specifications
| Model | Airtac SSA Single-Acting Compact Cylinder SSA40X5N |
|---|---|
| Series | SSA compact single-acting cylinder |
| Bore size | Ø40 mm |
| Stroke | 5 mm |
| Acting type | Single acting, push type |
| Port size | PT1/8 |
| Rod end thread | M8×1.25 female / M14×1.5 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 (Ø40mm, Push)
| Pressure | Push force (net) |
|---|---|
| 0.5 MPa | 546 N |
| 0.7 MPa | 797 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 SSA40X5N
| SSA | Compact single acting, push type cylinder series. |
|---|---|
| 40 | 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 SSA40X5N Is Used
Short-Stroke Part Clamping
Uses the 545.6 N net push at 0.5 MPa to secure heavy machined components against a fixed stop during milling operations.
Ejector Gate Diverter
Deploys the 5 mm stroke rapidly to push lightweight packages off a main belt line without consuming valuable longitudinal frame space.
Press-Fit Pin Insertion
Applies a brief 796.9 N push at 0.7 MPa to seat dowel pins into housings, relying on the fixed NBR bumper to absorb the impact.
Is the Airtac SSA Single-Acting Compact Cylinder SSA40X5N the Right Cylinder?
When sizing this bore, consider the neighboring options. Dropping down to the SSA32 yields 346.6 N of net push at 0.5 MPa, while stepping up to the SSA50 provides 874.7 N at the same pressure. This 40 mm bore strikes a balance, offering a safe working load of roughly 327 N (about 60% of its 545.6 N capacity) and a vertical lift capability of approximately 27.8 kg with a 2:1 safety margin.
This configuration features a 16 mm piston rod, a PT1/8 air port, and a female M8x1.25 rod-end thread. It operates on a single air line and solenoid port, requiring a minimum of 0.2 MPa to overcome the return spring. Because the spring drives the rod back upon air loss, it cannot hold a mid-stroke load without external mechanical locking. The maximum standard stroke for this series is 30 mm.
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 SSA40X5N FAQ
The SSA40X5 generates 545.6 N of net push force at 0.5 MPa and 796.9 N at 0.7 MPa. These figures already account for the internal return spring resistance, giving you the true usable output for your design calculations.
No, the internal spring retracts the rod when air pressure drops below the 0.2 MPa minimum or is removed entirely. It cannot hold a mid-stroke load; you would need a double-acting SDA cylinder paired with an external rod lock for that function.
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