Airtac SSA Single-Acting Compact Cylinder SSA40X30
The AirTAC Airtac SSA Single-Acting Compact Cylinder SSA40X30 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 SSA40X30
The AirTAC SSA40X30 is a compact single-acting push-type cylinder where air extends the rod and an internal spring retracts it. It generates 545.6 N of net push at 0.5 MPa, reaching 796.9 N at 0.7 MPa. The quoted force is already net of the return spring, giving you a real design figure rather than raw air pressure. This 40 mm bore unit uses a 16 mm rod and a PT1/8 port.
Its short riveted body saves axial mounting depth where a round-body or profile cylinder will not fit. A single air line and one solenoid port drive the motion, cutting fitting complexity and valve costs. End-of-stroke shock is handled by a fixed NBR bumper, which decelerates the piston but is not an adjustable air cushion. This SKU ships without a piston magnet, so it cannot host reed or electronic switches unless you specify the -S option.
Airtac SSA Single-Acting Compact Cylinder SSA40X30 Technical Specifications
| Model | Airtac SSA Single-Acting Compact Cylinder SSA40X30 |
|---|---|
| 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 SSA40X30
| 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 SSA40X30 Is Used
Stamping Pin Ejection
Uses the full 30 mm stroke and 545.6 N net push at 0.5 MPa to kick stamped metal pins out of a die cavity reliably.
Carton Flap Folding
Extends to tuck heavy cardboard flaps during case erecting, with the internal spring retracting the rod instantly for the next cycle.
Bearing Seating Press
Applies steady pneumatic force to seat bearings into housings, relying on the fixed NBR bumper to absorb the end shock.
Is the Airtac SSA Single-Acting Compact Cylinder SSA40X30 the Right Cylinder?
When sizing this model, look both directions: the smaller SSA32 yields 346.6 N net push at 0.5 MPa, while the larger SSA50 provides 874.7 N at the same pressure. This SSA40X30 sits perfectly in the middle for medium-duty ejection. It carries a 30 mm stroke, the maximum standard length for the series. The bore sets the PT1/8 port and a 16 mm rod with a female M8x1.25 rod-end thread (male M14x1.5 if coded B).
Operating pressure spans 0.2-1.0 MPa, needing at least 0.2 MPa to overcome the internal spring. A practical safe working load is roughly 327 N, or about 60% of the 545.6 N figure at 0.5 MPa. This equates to a vertical lift capacity near 27.8 kg with a 2:1 safety margin. Remember that the spring drives the rod to its retracted rest position upon air loss; it does not hold a mid-stroke load without live pressure.
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 SSA40X30 FAQ
The SSA40X30 provides 545.6 N of net push at 0.5 MPa and 796.9 N at 0.7 MPa. These figures already subtract the return spring resistance, giving you the true usable output force for your calculations.
No. It is a single-acting push cylinder where an internal spring retracts the rod upon air loss. It requires a minimum of 0.2 MPa to overcome the spring and cannot hold a mid-stroke load without live pressure or an external locking device.
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