Airtac SAI50 Standard Cylinder SAI50AX20S
The AirTAC SAI50 Standard Cylinder SAI50AX20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 20mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ50 mm
- Stroke20 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 30 mm
- 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 SAI50 Standard Cylinder SAI50AX20S
The AirTAC SAI50X20-S is a double-acting ISO 15552 profile cylinder engineered for compact actuation. Delivering 982 N of push force at 0.5 MPa and 825 N of pull force, this 50 mm bore unit is tailored for short 20 mm stroke movements. The extruded aluminum barrel design omits tie-rods, ensuring a clean exterior that drops directly into standardized ISO 15552 mounting footprints.
This specific configuration includes a SUS420J2 stainless steel rod (material code A) for superior corrosion resistance over standard carbon steel. Equipped with a magnet (-S), the barrel features sensor grooves on both sides, allowing seamless integration with CMSE or DMSE reed switches for precise end-of-stroke detection. Fluid ports feature PT tapered threading.
Airtac SAI50 Standard Cylinder SAI50AX20S Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50AX20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 20 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M16×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 30 mm |
| Max stroke | Up to 1200 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
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 SAI50 Standard Cylinder SAI50AX20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×20 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAI50 Standard Cylinder SAI50AX20S Is Used
Short-Stroke Clamping
Ideal for holding workpieces securely in machining or welding fixtures using its 982 N push force over a tight 20 mm travel.
Package Diverting
Provides rapid actuation for sorting arms or pop-up gates on conveyor lines where a compact footprint is required.
Gripper Actuation
Drives external mechanical grippers for pick-and-place robots, utilizing the integrated magnet for precise part-release confirmation.
Is the Airtac SAI50 Standard Cylinder SAI50AX20S the Right Cylinder?
Choose this 50 mm bore if your application requires moderate thrust but limited travel; stepping down to a 40 mm bore reduces the 0.5 MPa push force to 628 N, while stepping up to a 63 mm bore increases it to 1559 N. The 20 mm stroke is optimal for high-cycle clamping or gripping where extended reach is unnecessary.
Because the stroke is well under 300 mm, rod-bearing bending from side loads is minimal, though external guides are still recommended for rigid lateral forces. Note that the adjustable air cushions at both ends decelerate the piston near stroke end but do not lock the load; if position holding is required when air pressure drops, consider the SAIL (air-released lock) variant. To match this cylinder, specify a 50 mm bore, 20 mm stroke, PT G1/4 port, and FA/FB flange or LB foot mounting accessories.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
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 piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAI50 Standard Cylinder SAI50AX20S FAQ
At an operating pressure of 0.5 MPa, the SAI50X20-S generates a push force of 982 N and a pull force of 825 N. At 0.7 MPa, the push force increases to 1374 N.
Yes, the SAI50X20-S is dimensionally interchangeable per ISO 15552 standards. It shares the same mounting interface, G1/4 PT port size, and 50 mm bore dimensions as other ISO 15552 profile cylinders.
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