Airtac SSA Single-Acting Compact Cylinder SSA40X30B
The AirTAC Airtac SSA Single-Acting Compact Cylinder SSA40X30B is a genuine single-acting COMPACT cylinder (single acting, push type) with a Ø40mm bore and 30mm 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
- Stroke30 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 SSA40X30B
The AirTAC SSA40X30B is a compact single-acting push-type cylinder where air pressure extends the rod and an internal spring retracts it. It generates 545.6 N of net push at 0.5 MPa, meaning the return spring force is already subtracted to give you a real design figure. This unit features a 40 mm bore, a 30 mm stroke, and a male M14x1.5 threaded piston rod for direct mounting.
Because it requires only one air line and one solenoid port, plumbing is vastly simplified compared to double-acting setups. The short riveted body saves axial mounting depth where a standard round-body cylinder will not fit. End-of-stroke shock is handled by a fixed NBR bumper, which decelerates the piston but is not an adjustable air cushion.
Airtac SSA Single-Acting Compact Cylinder SSA40X30B Technical Specifications
| Model | Airtac SSA Single-Acting Compact Cylinder SSA40X30B |
|---|---|
| Series | SSA compact single-acting cylinder |
| Bore size | Ø40 mm |
| Stroke | 30 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 SSA40X30B
| SSA | Compact single acting, push type cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×30 | 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 SSA40X30B Is Used
Stamping Ejection
Uses the 545.6 N net push to eject stamped metal parts from a die, relying on the male M14x1.5 thread for a robust tooling connection.
Fixture Clamping
Secures heavy workpieces during machining, with the compact riveted body fitting into tight fixture walls to save axial space.
Product Diverting
Extends 30 mm to push items off a conveyor belt, requiring only a single air line to drive the motion while the spring handles the reset.
Is the Airtac SSA Single-Acting Compact Cylinder SSA40X30B the Right Cylinder?
When sizing this 40 mm bore model, look at the neighbors: an SSA32 provides 346.6 N net push at 0.5 MPa, while an SSA50 yields 874.7 N at the same pressure. A practical safe working load is roughly 327 N (about 60 percent of the 545.6 N figure), allowing a vertical lift of approximately 27.8 kg with a 2:1 safety margin. Keep within the 30 mm maximum standard stroke ceiling.
Operating pressure must stay between 0.2 and 1.0 MPa, as at least 0.2 MPa is required to overcome the return spring. Because this is a spring-return cylinder, it will not hold a mid-stroke load on air loss; the spring drives the rod back to rest. This specific SKU includes the male M14x1.5 rod thread and lacks a piston magnet, so it cannot accept reed or electronic switches without the -S option.
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 SSA40X30B FAQ
The net push force is 545.6 N 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 actual usable output force.
No, this specific SKU does not include a piston magnet. To use AirTAC reed or electronic switches, you must select the -S magnet option. Additionally, it requires at least 0.2 MPa operating pressure to overcome the spring.
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