This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X400-75, 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 SIJ32X400-75
The AirTAC SIJ32 Double Rod Adjustable Cylinder SIJ32X400-75 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 SAIJ32X400-75, 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 → SAIJ32X400-75
- 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 SIJ32X400-75
The AirTAC SIJ32X400-75 is a double-acting double-rod ISO 15552 adjustable-stroke cylinder, now discontinued and replaced by the SAIJ32X400-75. It features a 32mm bore, G1/8 port, and a 400mm nominal stroke that an external stop screw can shorten by up to 75mm on-site, yielding a usable 325-400mm extend window. The stop sets the end position; it is not a load lock.
The SAIJ direct keeps the ISO 15552 interface, mounting, and porting, while upgrading to a two Y-shaped one-way piston seal for lower start-up pressure. This SKU lacks a magnet, so it cannot take a switch. For the 400mm stroke, use external guides to prevent rod bending.
Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X400-75 Technical Specifications
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X400-75 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X400-75 |
| 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 SAIJ32X400-75 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 SAIJ32X400-75 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 SIJ32X400-75
| 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 SIJ32X400-75 Is Used
Variable Pitch Pushing
Tuning the extend stroke on-site by up to 75mm to push parts of varying widths into a press without swapping the entire cylinder.
Adjustable Diverting Gate
Setting a precise 325-400mm extend endpoint to divert different package sizes on a conveyor line, allowing rapid field adjustments.
Carton Forming Stops
Trimming the extend stroke to act as a mechanical stop for folding carton flaps, accommodating various box dimensions on the fly.
Replacing the Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X400-75 with the SAIJ32X400-75
Replace the discontinued SIJ32X400-75 directly with the SAIJ32X400-75, matching the 32mm bore, 400mm nominal stroke, 75mm adjust window, and G1/8 port. Choose the 75mm adjust window if you need on-site extend trimming between 325-400mm; a fixed SAI with an external stop lacks this integrated trim flexibility. Mounting options include FA, LB, and TC brackets. This SKU has no -S magnet and cannot support a sensor. Because the 400mm stroke exceeds 300mm, account for side-load and rod-bending by using external guides. The stop screw sets end position but does not hold load on air loss; for held loads use an external rod lock or SAIL/BSAI variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ32X400-75
- ✓ 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 SIJ32X400-75 FAQ
Yes, the SIJ32X400-75 is discontinued. The direct replacement is the SAIJ32X400-75, which shares the same ISO 15552 interface, 32mm bore, 400mm stroke, 75mm adjust window, G1/8 port, and mounting. The SAIJ upgrades to a two Y-shaped one-way piston seal for longer life.
The external stop screw window is 75mm, allowing the 400mm extend stroke to be shortened to 325mm on-site. The stop sets position but is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ32X400-75
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X400-75 replacement — usually within 7-8 hours.