Airtac SDA Ultra Thin Cylinder SDA40X15
The AirTAC SDA Ultra Thin Cylinder SDA40X15 is a genuine double-acting COMPACT (thin) air cylinder with a Ø40mm bore and 15mm 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
- Stroke15 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 SDA40X15
The AirTAC SDA40X15 is a double-acting single-rod compact cylinder engineered for tight axial spaces, delivering a push force of 628.3 N and a pull force of 527.8 N at 0.5 MPa. Its riveted body assembly significantly reduces overall mounting depth compared to standard round-body units, making it ideal for machinery with strict footprint limits. The bore is hard-anodized and utilizes a two-way piston seal for reliable operation.
This specific SKU features a 16 mm piston rod, a female M8x1.25 rod-end thread, and PT1/8 air ports. End-of-travel deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, meaning external shock absorbers should be added for high-energy cycling. Note that this configuration lacks a piston magnet, so it cannot support magnetic position sensing without selecting the -S option.
Airtac SDA Ultra Thin Cylinder SDA40X15 Technical Specifications
| Model | Airtac SDA Ultra Thin Cylinder SDA40X15 |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø40 mm |
| Stroke | 15 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 SDA40X15
| SDA | Compact (thin) double-acting cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×15 | 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 SDA40X15 Is Used
PCB Drill Press Indexing
Provides the 628.3 N extend force needed to position vertical drill spindles over printed circuit boards, utilizing the 16 mm rod to maintain rigidity during rapid 15 mm positioning shifts.
Carton Flap Folding
Drives a short mechanical arm to tuck corrugated box flaps prior to tape sealing, where the compact riveted body saves valuable axial space on high-speed packaging conveyors.
Stamping Pin Ejection
Ejects small stamped metal pins from progressive dies using a 15 mm stroke, relying on the fixed NBR bumper to absorb the end-stop impact in repetitive manufacturing cycles.
Is the Airtac SDA Ultra Thin Cylinder SDA40X15 the Right Cylinder?
When sizing this actuator, evaluate your force margins carefully: the SDA32X15 offers 402.1 N push at 0.5 MPa for lighter duties, while stepping up to the SDA50X15 yields 981.7 N for heavier loads. Keep in mind that a standard double-acting cylinder drifts when air pressure is lost or the valve is centered, as the fixed bumper only decelerates the stroke end rather than locking the rod. To secure a suspended load, integrate an external rod lock or a pilot-operated check valve. When ordering, confirm the 40 mm bore, 15 mm stroke, PT1/8 port, female rod thread, and no magnet.
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 SDA40X15 FAQ
At 0.5 MPa, the push force is 628.3 N and the pull force is 527.8 N. At 0.7 MPa, the push force is 879.6 N and the pull force is 738.9 N. The theoretical maximum push force is 128 kgf at 1.0 MPa. The operating pressure range is 0.15-1.0 MPa, with a proof pressure of 1.5 MPa, and the speed range spans 30-500 mm/s.
No, this specific SKU does not include a piston magnet, so it cannot trigger AirTAC reed or electronic switches. You would need to select the SDA40X15S variant to enable position sensing. Additionally, end-stop deceleration is managed by a fixed NBR bumper, which is not adjustable and cannot serve as a braking mechanism.
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