This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X125-40, 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 SIJ32X125-40
The AirTAC SIJ32 Double Rod Adjustable Cylinder SIJ32X125-40 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 SAIJ32X125-40, 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 → SAIJ32X125-40
- 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 SIJ32X125-40
The AirTAC SIJ32X125-40 is a double-acting double-rod ISO 15552 adjustable-stroke cylinder. It is discontinued, with the direct replacement being the SAIJ32X125-40, retaining the same G1/8 port, M10x1.25 rod thread, and 27mm adjustable cushion. An external stop screw lets you trim the extend stroke by up to 40mm on-site, yielding a usable extend range of 85-125mm from the 125mm nominal maximum. This stop sets the end position and is not a load lock; without live air the piston drifts.
The SAIJ successor features an upgraded two Y-shaped one-way piston seal for lower start-up pressure, and the SAI family adds SAIL and BSAI lock variants the SI line lacked.
Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X125-40 Technical Specifications
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X125-40 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X125-40 |
| 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 SAIJ32X125-40 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 SAIJ32X125-40 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 SIJ32X125-40
| 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 SIJ32X125-40 Is Used
Short-stroke clamping
Needs field stroke tuning to set a precise 85-125mm clamping reach on varying part widths without swapping cylinders.
Variable diverting
Requires trimming the extend stroke by up to 40mm on-site to adjust a pusher arm for different package sizes on a line.
Prototype actuation
Demands adjustable end positions during R&D setup, allowing rapid 40mm stroke corrections without machining new hard stops.
Replacing the Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X125-40 with the SAIJ32X125-40
To replace the discontinued SIJ32X125-40, order the direct replacement SAIJ32X125-40, keeping the 125mm nominal stroke and 40mm adjust window. Size both ways using 0.5MPa push force: the neighboring 40mm bore yields 628N, while a smaller bore requires confirming from datasheet. Choose your mounting from Basic, FA, LB, or TC. This SKU lacks the -S suffix, so it has no magnet and cannot take a magnetic switch. For strokes of 300mm or longer, verify side-load limits. Because the adjust stop is not a lock, use an external rod lock or pilot-operated check valve for held loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ32X125-40
- ✓ 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 SIJ32X125-40 FAQ
Yes, the SIJ32X125-40 is discontinued. The direct replacement is the SAIJ32X125-40, offering the same ISO 15552 interface, 125mm stroke, 40mm adjust window, and G1/8 port.
The external stop screw trims the extend stroke by up to 40mm, giving an 85-125mm usable range. It operates at 30-800mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ32X125-40
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X125-40 replacement — usually within 7-8 hours.