Airtac SDA Ultra Thin Cylinder SDA80X40
The AirTAC Airtac SDA Ultra Thin Cylinder SDA80X40 is a genuine double-acting COMPACT (thin) air cylinder with a Ø80mm bore and 40mm stroke, PT3/8 air ports and a riveted short body that saves mounting depth. Sensor slots around the body accept magnetic switches for position sensing.
- BoreØ80 mm
- Stroke40 mm
- Port sizePT3/8
- Acting typeDouble acting
- Rod threadM14×1.5 (F) / M22×1.5 (B)
- CushionFixed NBR bumper (both ends)
- 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 SDA Ultra Thin Cylinder SDA80X40
The AirTAC SDA80X40 is a double-acting single-rod compact cylinder engineered to deliver a robust 2513.3 N push force at 0.5 MPa. Its short riveted assembly merges the barrel, rear cover, piston, and rod to drastically reduce axial mounting depth, making it ideal for heavy machinery where a standard round-body unit would protrude too far. The hard-anodized bore ensures smooth operation across the 30-500 mm/s speed range.
This 80 mm bore model features a 25 mm piston rod and PT3/8 air ports. End-stopping relies on a fixed NBR bumper that decelerates the payload near stroke termination; because it is not an adjustable air cushion, high-energy cycles may require an external shock absorber or a slowed approach. This specific SKU lacks a piston magnet, so position sensing is not supported without upgrading to the -S variant for reed or electronic switches.
Airtac SDA Ultra Thin Cylinder SDA80X40 Technical Specifications
| Model | Airtac SDA Ultra Thin Cylinder SDA80X40 |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø80 mm |
| Stroke | 40 mm |
| Acting type | Double acting |
| Port size | PT3/8 |
| Rod end thread | M14×1.5 female / M22×1.5 male (B) |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Fixed NBR bumper (both ends) |
| Max standard stroke | Up to 120 mm |
Specifications follow the official AirTAC SDA compact-cylinder datasheet. Confirm against the product label before installation. Port thread: PT (standard). Rod: female thread (blank) / male thread (B).
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SDA Ultra Thin Cylinder SDA80X40
| SDA | Compact (thin) double-acting cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×40 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| B | Male-thread piston rod (omit = female-thread rod). |
Thread: PT standard. Related SDA-family variants: SSA (single-acting push), STA (single-acting pull), SDAD (double rod), SDAJ (adjustable stroke), SDAT (duplex), SDAW (duplex-end).
Where the Airtac SDA Ultra Thin Cylinder SDA80X40 Is Used
Stamping Press Ejection
Knocks heavy stamped metal panels out of a 150-ton press bed, utilizing the 2513.3 N extend force to overcome die friction within a tight tooling footprint.
Palletizer Lift Gate
Actuates a heavy diverter gate on a packaging palletizer, where the short 40 mm stroke and compact riveted body minimize interference with passing conveyor traffic.
Injection Mold Clamping
Secures a secondary core insert inside an injection molding machine, providing the necessary holding rigidity through a 25 mm rod without extending into the mold base.
Is the Airtac SDA Ultra Thin Cylinder SDA80X40 the Right Cylinder?
When sizing this actuator, stepping down to the SDA63 yields 1558.6 N of push at 0.5 MPa, while stepping up to the massive SDA100 provides 3927 N. The SDA80X40 strikes a balance, offering a safe working load of roughly 1508 N (about 60% of its 0.5 MPa capacity) and a vertical lift capability of approximately 128.1 kg with a 2:1 safety margin. Confirm your ordering essentials: 80 mm bore, 40 mm stroke, PT3/8 port, female M14x1.5 rod thread, and no magnet.
Be aware that a standard double-acting cylinder does not hold its position if air pressure drops or the directional valve is centered. The piston will drift, and the fixed NBR bumper only decelerates the load near the stroke end rather than locking it. If your application demands fail-safe load holding, you must integrate an external rod lock or a pilot-operated check valve into the pneumatic circuit.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Short-body depth vs. a round-body cylinder
- ✓ Port/thread type (PT)
- ✓ Magnet (S) for sensors?
- ✓ Female (blank) or male (B) rod thread
- ✓ Side load — avoid on a compact rod
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the short piston rod.
- check Very long strokes are unsuitable for the compact body.
- check Front/rear covers are riveted — do not dismantle.
- check Installation by qualified personnel per AirTAC docs.
Airtac SDA Ultra Thin Cylinder SDA80X40 FAQ
The SDA80X40 generates 2513.3 N of push and 2267.8 N of pull at 0.5 MPa. At 0.7 MPa, the push increases to 3518.6 N. The theoretical maximum push force is 513 kgf at the 1.0 MPa operating pressure limit.
No, this specific SKU does not include a piston magnet. To use AirTAC reed or electronic switches in the body grooves, you must select the -S option code when ordering to add the internal magnet.
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