This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI40X132S, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.
Airtac SI40 Standard Cylinder SI40X132S
The AirTAC Airtac SI40 Standard Cylinder SI40X132S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø40mm bore and 132mm stroke, G1/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI40X132S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke132 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAI40X132S
- 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 SI40 Standard Cylinder SI40X132S
The AirTAC SI40X132S is a discontinued double-acting ISO 15552 profile cylinder with a 40mm bore and 132mm stroke. It delivers 628N push force at 0.5MPa via a G1/4 port. The direct replacement is the SAI40X132S, matching the interface, bore, stroke, force and mounting.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The SAI family also adds SAIL, SAIF and BSAI variants the SI lacked.
Airtac SI40 Standard Cylinder SI40X132S Technical Specifications
| Model | Airtac SI40 Standard Cylinder SI40X132S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI40X132S |
| Bore size | Ø40 mm |
| Stroke | 132 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, 27 mm |
| Max standard stroke | Up to 1200 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI40X132S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / 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 | |
The SAI40X132S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI40 Standard Cylinder SI40X132S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×132 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Where the Airtac SI40 Standard Cylinder SI40X132S Is Used
Clamp Actuation
Provides reliable 628N clamping force for mid-sized machining fixtures, ensuring parts hold firm during milling or drilling operations.
Package Diverting
Drives diverter arms on packaging lines where a 132mm stroke pushes cartons smoothly between adjacent belt sections.
Gating Mechanisms
Operates sorting gates in distribution hubs, moving lightweight totes with a fast 30-800mm/s speed and positive stopping force.
Replacing the Airtac SI40 Standard Cylinder SI40X132S with the SAI40X132S
To replace this SI40X132S with the SAI40X132S, verify the ISO 15552 mounting interface, 40mm bore, 132mm stroke, G1/4 port and the -S magnet for CS1-B/DS1-B switches. Note that 132mm is a nonstandard stroke. If sizing up or down, neighbouring bores are 32mm and 50mm; at 0.5MPa the 32mm gives 402N push and the 50mm gives 982N. For stroke lengths over 300mm, use a guide to prevent rod bending. A plain cylinder drifts on air loss—the cushion only decelerates—so for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI40X132S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI40 Standard Cylinder SI40X132S FAQ
Yes, the SI40X132S is discontinued. The direct replacement is the SAI40X132S. It is dimensionally interchangeable per ISO 15552, retaining the same 40mm bore, 132mm stroke, G1/4 port and mounting interface.
This double-acting cylinder features a G1/4 port and M12x1.25 rod thread. It generates 628N push and 528N pull at 0.5MPa, 879N push at 0.7MPa, 1130N push at 0.9MPa, and a theoretical max of 128kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI40X132S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI40X132S replacement — usually within 7-8 hours.