Airtac SAI50 Standard Cylinder SAI50BX140S
The AirTAC SAI50 Standard Cylinder SAI50BX140S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 140mm 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
- Stroke140 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 SAI50BX140S
The AirTAC SAI50X140-S is a double-acting ISO 15552 profile cylinder featuring a 50mm bore and 140mm stroke. It generates 982N of push force and 825N of pull force at 0.5 MPa, making it well-suited for mid-range automation tasks. The extruded aluminum barrel design eliminates tie rods while maintaining strict dimensional interchangeability with other ISO 15552 cylinders.
Configured with a -S magnet, this unit directly supports CMSE and DMSE sensor switches via integrated grooves on both sides of the barrel. Furthermore, this specific model utilizes a SUS304 stainless steel rod (option B) for superior corrosion resistance, and uses PT tapered port threads to ensure a robust pneumatic seal.
Airtac SAI50 Standard Cylinder SAI50BX140S Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50BX140S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 140 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 SAI50BX140S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×140 | 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 SAI50BX140S Is Used
Parts Clamping
Ideal for securing mid-weight workpieces during machining, utilizing its 982N push force to hold components firmly against stops.
Package Diverting
Executes 140mm strokes to push packages between conveyor lanes, with the -S magnet enabling precise end-of-stroke detection.
Lift Gates
Raises and lowers light-gauge material lift gates, relying on the SUS304 rod for environmental durability in humid facilities.
Is the Airtac SAI50 Standard Cylinder SAI50BX140S the Right Cylinder?
Selecting this 50mm bore over the smaller 40mm version upgrades your thrust from 628N to 982N at 0.5 MPa, whereas stepping up to the 63mm bore yields 1559N. At 140mm stroke, side-load stress on the rod bearing remains moderate, but always ensure the load is guided to prevent premature wear. For applications experiencing occasional side loads, a guided cylinder module is recommended.
This SAI50X140-S provides a true ISO 15552 mounting interface, meaning it serves as a direct replacement for any standard 50mm bore, 140mm stroke ISO cylinder. It features a PT G1/4 port, M16x1.5 rod thread, and adjustable air cushions at both stroke ends. Remember that the standard double-acting design relies on continuous air pressure to hold position; if power drops, the load will drift. Use an external pilot check valve or the SAIL locking variant for fail-safe holding.
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 SAI50BX140S FAQ
At 0.5 MPa, this 50mm bore cylinder provides 982N of push force and 825N of pull force. If operated at 0.7 MPa, the push force increases to 1374N.
Yes, the SAI50X140-S is a profile-type cylinder built to exact ISO 15552 mounting dimensions. It serves as a direct replacement for any brand following the same ISO 15552 standard.
Authorized Export Seller
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.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAI50 Standard Cylinder SAI50BX140S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.