Airtac SAI50 Standard Cylinder SAI50X40S
The AirTAC SAI50 Standard Cylinder SAI50X40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 40mm 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
- Stroke40 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 SAI50X40S
The AirTAC SAI50X40-S is a double-acting ISO 15552 profile cylinder featuring a 50mm bore and a 40mm stroke. It provides a robust push force of 982 N at 0.5 MPa, making it highly effective for compact actuation tasks. The extruded aluminum barrel omits tie-rods, offering a clean exterior that aligns with standardized ISO 15552 mounting dimensions.
This specific configuration includes a standard carbon steel piston rod and a built-in magnet (-S) for position sensing. The barrel features sensor grooves on both sides, allowing for the seamless installation of CMSE or DMSE reed switches. Port threads are PT (tapered), and the cylinder supports adjustable air cushions at both ends to manage impact at stroke completion.
Airtac SAI50 Standard Cylinder SAI50X40S Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50X40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 40 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 SAI50X40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×40 | 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 SAI50X40S Is Used
Package Diversion
Provides rapid 40mm strokes to actuate diverter arms on high-speed packaging conveyors.
Clamping Mechanisms
Delivers 982N of push force at 0.5MPa to secure lightweight material during machining operations.
Sorting Gates
Powers compact sorting gates in distribution hubs where space is restricted but reliable force is needed.
Is the Airtac SAI50 Standard Cylinder SAI50X40S the Right Cylinder?
When selecting this model, consider stepping down to a 40mm bore if your application requires only 628 N of push force at 0.5 MPa, or step up to a 63mm bore for 1559 N. Because the stroke is only 40mm, side-load stress on the rod bearing is minimal, meaning external guides are typically unnecessary for this specific length. For applications requiring the load to remain fixed during a loss of air pressure, note that a standard SAI cylinder will drift; consider the SAIL variant for pneumatic locking or the BSAI for bidirectional clamp-locking. To replace an existing ISO 15552 unit, match the 50mm bore, 40mm stroke, PT G1/4 port, and appropriate mounting accessories like FA flanges or TC trunnions.
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 SAI50X40S FAQ
At 0.5 MPa, the push force is 982 N and the pull force is 825 N. At 0.7 MPa, the push force increases to 1374 N.
Yes, the SAI50X40-S is dimensionally interchangeable per ISO 15552, making it a direct replacement for other ISO 15552 profile cylinders with matching 50mm bore and 40mm stroke specifications.
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.
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