Airtac SAI50 Standard Cylinder SAI50BX290S
The AirTAC SAI50 Standard Cylinder SAI50BX290S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 290mm 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
- Stroke290 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 SAI50BX290S
The AirTAC SAI50X290-S is a double-acting ISO 15552 profile cylinder engineered to deliver 982 N of push force at 0.5 MPa. Its 290 mm stroke provides the extended travel needed for mid-range material handling and automated clamping tasks. As a genuine AirTAC component, it ensures seamless dimensional interchangeability with other ISO 15552 standard actuators.
Beyond the standard spec sheet, this specific configuration incorporates a SUS304 stainless steel rod for superior corrosion resistance in humid or washdown environments. It features a magnetic piston (-S) for use with CMSE or DMSE reed switches, and utilizes PT tapered port threads to guarantee a robust pneumatic seal.
Airtac SAI50 Standard Cylinder SAI50BX290S Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50BX290S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 290 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 SAI50BX290S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×290 | 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 SAI50BX290S Is Used
Package Diversion
Extends 290 mm to actuate routing gates on packaging lines, using the 982 N thrust to push heavy cartons smoothly onto secondary tracks.
Stainless Clamping
Secures metal workpieces during machining. The SUS304 rod withstands coolant splatter while providing reliable clamping force.
Pallet Stops
Functions as an extendable stop block on roller conveyors. The magnetic piston allows position sensors to confirm stop engagement.
Is the Airtac SAI50 Standard Cylinder SAI50BX290S the Right Cylinder?
Selecting this 50 mm bore is ideal when an application outgrows the 628 N push force of a 40 mm cylinder but does not warrant the bulk of a 63 mm unit. For the 290 mm stroke, managing side load is critical; long unsupported rods are prone to bending under lateral forces. Implement an external guide rail or use a guided cylinder to prevent premature rod-bearing wear.
To replace an existing ISO 15552 actuator, match the 50 mm bore, 290 mm stroke, and G1/4 port size. The standardized mounting dimensions support LB foot brackets, FA flanges, and TC trunnions. Remember that the standard adjustable air cushion only decelerates the piston at stroke end; it does not hold a load. If pressure drops, use the SAIL lock variant or an external pilot check valve to prevent drifting.
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 SAI50BX290S FAQ
At 0.5 MPa operating pressure, this 50 mm bore cylinder provides 982 N of push force and 825 N of pull force. At 0.7 MPa, the push force increases to 1374 N.
Yes. It is dimensionally interchangeable per ISO 15552. You can swap it with other ISO 15552 profile cylinders by matching the 50 mm bore, 290 mm stroke, and G1/4 port, but it is not identical to any specific brand's proprietary part.
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Covers non-human-caused product damage.
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