This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X125-40S, 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 SIJ32 Double Rod Adjustable Cylinder SIJ32X125-40S
The AirTAC SIJ32 Double Rod Adjustable Cylinder SIJ32X125-40S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 125mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X125-40S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke125 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAIJ32X125-40S
- 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 SIJ32 Double Rod Adjustable Cylinder SIJ32X125-40S
The AirTAC SIJ32X125-40S is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 32 mm bore and 125 mm maximum stroke. An external stop screw lets you trim the extend stroke by up to 40 mm on-site, yielding a usable forward travel of 85-125 mm. The stop screw strictly sets the end position; it is not a load lock, and the cylinder will drift on air loss.
The direct replacement is the SAIJ32X125-40S, retaining the same interface, 12 mm rod, M10x1.25 thread, and force. The SAIJ family upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life. This -S model includes a piston magnet for legacy CS1-B/DS1-B switches.
Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X125-40S Technical Specifications
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X125-40S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X125-40S |
| Bore size | Ø32 mm |
| Stroke | 125 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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 1000 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAIJ32X125-40S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAIJ32X125-40S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X125-40S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×125 | 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 SIJ32 Double Rod Adjustable Cylinder SIJ32X125-40S Is Used
Diverter Gate Positioning
Allows operators to fine-tune the 85-125 mm extend stroke on-site by up to 40 mm to hit exact gate angles without swapping cylinders.
Variable Depth Sealing Heads
Provides adjustable end-of-stroke positioning for sealing jaws that must accommodate different package depths on the same line.
Adjustable Forming Stops
Sets precise mechanical end positions for metal forming or bending tasks where material thickness variations require field stroke tuning.
Replacing the Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X125-40S with the SAIJ32X125-40S
To replace the discontinued SIJ32X125-40S, order the direct replacement SAIJ32X125-40S; it matches the 32 mm bore, 125 mm stroke, 40 mm adjust window, and G1/8 port. Choose the 40 mm adjust window if your process requires tuning the extend stroke between 85 and 125 mm on-site. Mounting options include Basic, FA, LB, and TC using the ISO 15552 interface. The -S suffix indicates a piston magnet is present for legacy CS1-B/DS1-B switches; the SAIJ replacement uses current AirTAC switches. For strokes of 300 mm or longer, verify side-load limits to prevent excessive guide wear. Remember that the stop screw sets end position only; for load holding on air loss, use an external rod lock or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ32X125-40S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X125-40S FAQ
Yes, the SIJ32X125-40S is discontinued. The direct replacement is the SAIJ32X125-40S. It shares the same ISO 15552 interface, 32 mm bore, 125 mm nominal stroke, 40 mm adjust window, and G1/8 port. The SAIJ upgrade features an improved two Y-shaped one-way piston seal for longer life.
The external stop screw window is 40 mm, allowing you to trim the extend stroke from the 125 mm maximum down to 85 mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ32X125-40S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X125-40S replacement — usually within 7-8 hours.