Airtac SDA Ultra Thin Cylinder SDA50X20
The AirTAC Airtac SDA Ultra Thin Cylinder SDA50X20 is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 20mm stroke, PT1/4 air ports and a riveted short body that saves mounting depth. Sensor slots around the body accept magnetic switches for position sensing.
- BoreØ50 mm
- Stroke20 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM10×1.5 (F) / M18×1.5 (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 SDA50X20
The AirTAC SDA50X20 is a double-acting single-rod compact cylinder engineered to deliver 981.7 N of push force at 0.5 MPa. Its riveted assembly securely joins the barrel, rear cover, piston, and rod, resulting in a highly abbreviated axial length that saves valuable mounting depth where a conventional round-body unit would simply not fit.
This specific configuration features a 20 mm stroke, a 20 mm piston rod, and PT1/4 ports. End-of-travel deceleration is handled strictly by fixed NBR bumpers rather than adjustable air cushions, meaning operators should reduce approach speeds or utilize external shock absorbers for high-energy loads. This base SKU lacks a piston magnet and therefore cannot support magnetic sensing.
Airtac SDA Ultra Thin Cylinder SDA50X20 Technical Specifications
| Model | Airtac SDA Ultra Thin Cylinder SDA50X20 |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 20 mm |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod end thread | M10×1.5 female / M18×1.5 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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 SDA50X20
| SDA | Compact (thin) double-acting cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×20 | 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 SDA50X20 Is Used
Injection Mold Ejection
Provides robust 981.7 N push force to eject dense plastic parts from mold cavities, utilizing the 20 mm stroke to conserve vertical press space.
Package Diverting
Actuates a routing gate on a high-speed logistics conveyor, where the abbreviated riveted body minimizes interference with adjacent belt supports.
Press Tool Clamping
Secures sheet metal workpieces in a stamping press fixture, relying on the 20 mm piston rod to deliver rapid clamping without lateral deflection.
Is the Airtac SDA Ultra Thin Cylinder SDA50X20 the Right Cylinder?
When sizing this actuator, evaluate your force requirements carefully: stepping down to the SDA40 yields 628.3 N of push at 0.5 MPa, while stepping up to the SDA63 provides 1558.6 N. For the SDA50X20, the safe working load is approximately 589 N (about 60% of the 981.7 N figure), allowing a vertical lift of roughly 50 kg with a 2:1 safety margin. To finalize your order, confirm the 50 mm bore, 20 mm stroke, PT1/4 port, female M10x1.5 rod thread, and the absence of the magnet option. Keep in mind that a standard double-acting cylinder drifts when air pressure is lost or the valve is centered, so incorporate an external rod lock or pilot-operated check valve if the mechanism must hold a load securely in place.
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 SDA50X20 FAQ
The SDA50X20 generates 981.7 N push and 824.7 N pull at 0.5 MPa, and 1374.4 N push at 0.7 MPa. The theoretical maximum push is 200 kgf at 1.0 MPa. Operating pressure ranges from 0.15 to 1.0 MPa, with a speed of 30-500 mm/s.
No, this specific SKU lacks the -S magnet option, so it cannot accept AirTAC reed or electronic switches. Additionally, it uses fixed NBR bumpers for end-of-stroke deceleration rather than adjustable air cushions, so external shock absorbers are recommended for heavy or fast-moving loads.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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