Airtac SDA Ultra Thin Cylinder SDA20X5
The AirTAC Airtac SDA Ultra Thin Cylinder SDA20X5 is a genuine double-acting COMPACT (thin) air cylinder with a Ø20mm bore and 5mm stroke, M5×0.8 air ports and a riveted short body that saves mounting depth. Sensor slots around the body accept magnetic switches for position sensing.
- BoreØ20 mm
- Stroke5 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM4×0.7 (F) / M6×1.0 (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 SDA20X5
The AirTAC SDA20X5 is a double-acting single-rod compact cylinder engineered for extremely tight axial spaces. It delivers a push force of 157.1 N and a pull force of 131.9 N at 0.5 MPa, utilizing a hard-anodized bore and a two-way piston seal for reliable operation. The short riveted body drastically reduces overall mounting length compared to round-body alternatives, making it ideal for dense machinery layouts.
This specific configuration features a 5 mm stroke, an 8 mm piston rod, and an M5x0.8 port. It relies on a fixed NBR bumper at each end to decelerate the stroke end rather than an adjustable air cushion. Because this SKU lacks the S option, it has no piston magnet and cannot accept magnetic switches.
Airtac SDA Ultra Thin Cylinder SDA20X5 Technical Specifications
| Model | Airtac SDA Ultra Thin Cylinder SDA20X5 |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø20 mm |
| Stroke | 5 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Rod end thread | M4×0.7 female / M6×1.0 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 90 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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | — |
| Max (@1.0 MPa) | 32 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 SDA20X5
| SDA | Compact (thin) double-acting cylinder series. |
|---|---|
| 20 | Bore size in mm. |
| ×5 | 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 SDA20X5 Is Used
Micro-Clamping in PCB Assembly
Provides precise 5 mm actuation to secure delicate circuit boards during soldering, utilizing its 157.1 N push force within cramped electronics manufacturing equipment.
Short-Stroke Ejection in Packaging
Quickly knocks small cartons off a conveyor line using a rapid 5 mm tap, saving valuable axial footprint inside high-speed packaging machines.
Valve Actuation in Lab Analyzers
Fits into compact laboratory diagnostic enclosures to trigger micro-fluidic valves, where the 131.9 N pull force at 0.5 MPa easily overcomes internal spring tension.
Is the Airtac SDA Ultra Thin Cylinder SDA20X5 the Right Cylinder?
When sizing this unit, stepping down to the SDA16 yields 100.5 N of push force at 0.5 MPa, while stepping up to the SDA25 provides 245.4 N. For this 20 mm bore, the safe working load is approximately 94 N (about 60% of the 157.1 N figure), translating to a vertical lift capacity of roughly 8 kg with a 2:1 safety margin. Confirm your ordering essentials: 20 mm bore, 5 mm stroke, M5x0.8 port, female M4x0.7 rod thread, and no sensor magnet.
Keep in mind that a standard SDA cylinder does not hold its position if air pressure drops or the valve is centered; the piston will drift. The fixed NBR bumper only decelerates the load near the stroke end and does not act as a lock. If your application requires strict position holding, you must 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 SDA20X5 FAQ
The SDA20X5 generates a push force of 157.1 N and a pull force of 131.9 N at 0.5 MPa. At 0.7 MPa, the push force is 219.9 N and the pull force is 184.7 N. The theoretical maximum push force is 32 kgf at 1.0 MPa.
No, this specific SKU does not include a piston magnet. To use AirTAC reed or electronic switches, you must order the SDA20X5S variant, which includes the built-in magnet for the body sensor grooves.
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