This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X400-50, 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 SIJ32X400-50
The AirTAC SIJ32 Double Rod Adjustable Cylinder SIJ32X400-50 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 400mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X400-50, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke400 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAIJ32X400-50
- 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 SIJ32X400-50
The AirTAC SIJ32X400-50 is a double-acting double-rod ISO 15552 adjustable-stroke cylinder, now discontinued. The direct replacement is the SAIJ32X400-50, matching the 32mm bore, 400mm nominal stroke, G1/8 port, and 50mm adjust window. An external stop screw lets you trim the extend stroke by up to 50mm on-site, yielding a usable 350-400mm extend length.
The SAIJ successor retains the ISO 15552 mounting interface for direct reuse of FA, LB, and TC brackets, and features an upgraded two-piece Y-shaped piston seal for lower start-up pressure and longer life. The stop screw sets the end position but is not a load lock; for held loads use an external rod lock or SAIL/BSAI variant. This non-magnet SKU cannot take a switch.
Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X400-50 Technical Specifications
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X400-50 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X400-50 |
| Bore size | Ø32 mm |
| Stroke | 400 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 SAIJ32X400-50 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 SAIJ32X400-50 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 SIJ32X400-50
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×400 | 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 SIJ32X400-50 Is Used
Adjustable End-Stop Pressing
Trimming the extend stroke by up to 50mm on-site allows precise pressing of light assemblies without machining a custom fixed-stop bracket.
Variable Length Diverter
Tuning the 350-400mm extend window lets operators alter a diverter arm reach on the fly to accommodate varying package widths on a line.
Customizable Pusher Stroke
An external stop screw provides a mechanical end-position limit for pushing totes, enabling field adjustments when product dimensions change.
Replacing the Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X400-50 with the SAIJ32X400-50
To replace the discontinued SIJ32X400-50, order the direct replacement SAIJ32X400-50, which preserves the 400mm nominal stroke and 50mm on-site adjust window. Choose the 50mm adjust window if your end-position tuning requires up to 50mm of trim off the maximum extend. Mounting hardware (FA, LB, TC) reuses the exact ISO 15552 interface dimensions. Because this unit lacks the -S suffix, it cannot accept a magnetic switch for position sensing. Finally, at 400mm stroke, minimize side-load and rod-bending by using external guides to support the 12mm rod.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ32X400-50
- ✓ 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 SIJ32X400-50 FAQ
Yes, the AirTAC SIJ32X400-50 is discontinued. The direct replacement is the SAIJ32X400-50, which matches the 32mm bore, 400mm stroke, 50mm adjust window, G1/8 port, and ISO 15552 mounting interface.
The external stop screw allows you to trim the extend stroke by up to 50mm on-site (usable extend 350-400mm). The stop sets end position but is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ32X400-50
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X400-50 replacement — usually within 7-8 hours.