Airtac SAI40 Standard Air Cylinder SAI40X140S
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40X140S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 140mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ40 mm
- Stroke140 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- 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 SAI40 Standard Air Cylinder SAI40X140S
The AirTAC SAI40X140-S is a double-acting ISO 15552 profile cylinder engineered to deliver reliable linear motion. Operating at 0.5 MPa, it generates 628 N of push force and 528 N of pull force. The 140 mm stroke is well-suited for mid-range actuation tasks requiring precise positioning. As a genuine AirTAC component, it ensures consistent performance in demanding environments.
This variant includes a magnetic piston (-S) for seamless integration with CMSE or DMSE reed switches. The extruded aluminum barrel features sensor grooves on both sides for flexible mounting. The standard carbon steel piston rod provides robust strength, while adjustable air cushions at both ends protect the end caps from impact damage during high-speed operations.
Airtac SAI40 Standard Air Cylinder SAI40X140S Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40X140S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 140 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAI40 Standard Air Cylinder SAI40X140S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | 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 SAI40 Standard Air Cylinder SAI40X140S Is Used
Component Clamping
Ideal for securing medium-sized workpieces during machining, utilizing its 628 N push force to hold parts firmly against locators.
Package Diverting
Provides reliable actuation for diverting mechanisms on packaging lines, where the 140 mm stroke pushes cartons onto auxiliary tracks.
Gate Operation
Actuates safety gates and machine guarding doors, using the magnetic piston to trigger CMSE sensors and confirm door status.
Is the Airtac SAI40 Standard Air Cylinder SAI40X140S the Right Cylinder?
Selecting this 40 mm bore cylinder is optimal when an application requires approximately 600 N of force at 0.5 MPa. If your project demands less force, stepping down to a 32 mm bore yields 402 N; conversely, upgrading to a 50 mm bore provides 982 N. The 140 mm stroke offers ample travel without the severe side-load risks associated with exceptionally long rods, though external guides are always recommended for heavy off-center loads.
Because it adheres strictly to ISO 15552 dimensional standards, this unit serves as a direct drop-in replacement for comparable profile cylinders. It features a PT tapered port thread, a G1/4 air connection, and an M12x1.25 rod thread. Note that standard double-acting cylinders drift if air pressure is lost; for applications requiring position holding without live pressure, consider the SAIL locking variant or an external pilot-operated check valve.
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 SAI40 Standard Air Cylinder SAI40X140S FAQ
At an operating pressure of 0.5 MPa, this 40 mm bore cylinder generates a push force of 628 N and a pull force of 528 N. At 0.7 MPa, the push force increases to 879 N.
Yes, the SAI40X140-S is dimensionally interchangeable with other ISO 15552 profile cylinders. You can swap it into existing mounts using standard FA flanges or LB foot brackets without modifying the machinery.
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 SAI40 Standard Air Cylinder SAI40X140S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.