Airtac SAI50 Standard Cylinder SAI50BX20
The AirTAC Airtac SAI50 Standard Cylinder SAI50BX20 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 SAI50BX20
The AirTAC SAI50X20 is a double-acting ISO 15552 profile cylinder engineered for short-stroke automation. It delivers a push force of 982 N at 0.5 MPa, making it well-suited for compact clamping and ejection tasks. The 20 mm stroke is a non-standard configuration, made to order for specialized machine layouts.
This specific unit features a SUS304 stainless steel rod (option B) for superior corrosion resistance in wet or washdown environments. It utilizes PT tapered port threads and lacks a magnet, meaning position sensing must be handled externally rather than via internal reed switches.
Airtac SAI50 Standard Cylinder SAI50BX20 Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50BX20 |
|---|---|
| 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 SAI50BX20
| 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 SAI50BX20 Is Used
Compact Clamping
Secures small metal or plastic components during machining operations using its 982 N push force within tight spatial constraints.
Product Ejection
Provides rapid 20 mm strokes to push finished parts off a conveyor line into packaging chutes.
Valve Actuation
Switches process valves in food-grade or chemical equipment, leveraging the SUS304 stainless steel rod for corrosion resistance.
Is the Airtac SAI50 Standard Cylinder SAI50BX20 the Right Cylinder?
If 982 N of push force at 0.5 MPa is insufficient, stepping up to the 63 mm bore yields 1559 N. Alternatively, dropping to the 40 mm bore reduces the push force to 628 N for lighter duty cycles. Because this 20 mm stroke is exceptionally short, side-load stress on the rod bearing is minimal, negating the need for external guides.
As a true ISO 15552 profile cylinder, it is dimensionally interchangeable with other ISO 15552 cylinders. For this configuration: 50 mm bore, 20 mm stroke, PT G1/4 port, and no magnet (-S omitted). Note that without a piston magnet, internal CMSE or DMSE sensors cannot be used. Additionally, the standard double-acting design will not hold a load if air pressure is lost; use the SAIL variant if a mechanical lock is required for safety.
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 SAI50BX20 FAQ
At 0.5 MPa operating pressure, this 50 mm bore cylinder provides a push force of 982 N and a pull force of 825 N. It can reach a maximum push force of 1767 N at 0.9 MPa.
Yes, the SAI50X20 is a genuine ISO 15552 profile cylinder, making its mounting interface dimensionally interchangeable with other ISO 15552 compliant cylinders. It uses a PT G1/4 port.
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Standard models are processed and dispatched in 3-5 business days.
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