Airtac SDA Ultra Thin Cylinder SDA40X30
The AirTAC Airtac SDA Ultra Thin Cylinder SDA40X30 is a genuine double-acting COMPACT (thin) air cylinder with a Ø40mm bore and 30mm stroke, PT1/8 air ports and a riveted short body that saves mounting depth. Sensor slots around the body accept magnetic switches for position sensing.
- BoreØ40 mm
- Stroke30 mm
- Port sizePT1/8
- Acting typeDouble acting
- Rod threadM8×1.25 (F) / M14×1.5 (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 SDA40X30
The AirTAC SDA40X30 is a double-acting single-rod compact cylinder delivering 628.3 N of push force and 527.8 N of pull force at 0.5 MPa. Its riveted assembly significantly reduces axial mounting depth compared to conventional round-body units, making it highly effective for machines where footprint reduction is critical. The hard-anodized bore ensures smooth operation across the 30-500 mm/s speed range.
This specific configuration features a 16 mm piston rod and PT1/8 air ports. End-stopping relies on a fixed NBR bumper rather than an adjustable air cushion, meaning high-energy cycles may require external shock absorption. Because this SKU lacks the S option, it has no piston magnet and cannot host position sensing switches.
Airtac SDA Ultra Thin Cylinder SDA40X30 Technical Specifications
| Model | Airtac SDA Ultra Thin Cylinder SDA40X30 |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø40 mm |
| Stroke | 30 mm |
| Acting type | Double acting |
| Port size | PT1/8 |
| Rod end thread | M8×1.25 female / M14×1.5 male (B) |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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 SDA40X30
| SDA | Compact (thin) double-acting cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×30 | 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 SDA40X30 Is Used
PCB Depaneling Router
Provides the steady 628.3 N extension needed to clamp populated circuit boards during automated routing and cutting processes.
Bottle Sorting Diverter
Actuates a short-stroke gate to push beverage containers between packaging lines without consuming excessive machine frame length.
Small Press Ejection
Ejects lightweight stamped metal parts from a die bed, utilizing the 527.8 N retract force to clear the tooling quickly.
Is the Airtac SDA Ultra Thin Cylinder SDA40X30 the Right Cylinder?
When sizing this unit, evaluate your neighbours: the SDA32 offers 402.1 N push at 0.5 MPa for lighter loads, while the SDA50 steps up to 981.7 N for heavier demand. For the SDA40X30, a safe working load is approximately 377 N (about 60% of the 0.5 MPa figure), translating to a vertical lift capacity of roughly 32 kg with a 2:1 safety margin. To finalize your order, confirm the 40 mm bore, 30 mm stroke, PT1/8 port, female M8x1.25 rod thread, and that no magnet is required.
Keep in mind that a standard double-acting cylinder drifts when air pressure is lost or the control valve is centered. The fixed rubber bumper only decelerates the piston near the stroke ends and does not function as a braking device. If your application must hold a load securely without live pressure, integrate an external rod lock or a pilot-operated check valve.
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 SDA40X30 FAQ
This double-acting cylinder generates 628.3 N push and 527.8 N pull at 0.5 MPa, increasing to 879.6 N push and 738.9 N pull at 0.7 MPa. The theoretical maximum push force is 128 kgf at 1.0 MPa. It operates between 0.15-1.0 MPa, handles a proof pressure of 1.5 MPa, and functions in temperatures from -20 to +70 C.
No, this specific SKU does not include a piston magnet. To use AirTAC reed or electronic switches in the body grooves, you must specify the S option (SDA40X30S) when ordering. Additionally, end-of-stroke deceleration is handled by a fixed NBR bumper, not an adjustable air cushion.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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