This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X500-40, 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 SIJ32X500-40
The AirTAC SIJ32 Double Rod Adjustable Cylinder SIJ32X500-40 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 500mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X500-40, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke500 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAIJ32X500-40
- 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 SIJ32X500-40
The AirTAC SIJ32X500-40 is a double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 32 mm bore and 500 mm maximum extend stroke. An external stop screw lets you trim the extend stroke by up to 40 mm on-site, yielding a usable 460-500 mm window. The G1/8 port and M10x1.25 rod end provide standard pneumatics integration. This SIJ model is discontinued; the direct replacement is the SAIJ32X500-40, sharing the same interface, force, and mounting.
The SAIJ upgrade uses an improved two Y-shaped one-way piston seal for lower start-up pressure. Note this SKU lacks a -S magnet, so it cannot accept a reed switch. The stop screw sets end position only; it is not a load lock.
Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X500-40 Technical Specifications
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X500-40 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X500-40 |
| Bore size | Ø32 mm |
| Stroke | 500 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 SAIJ32X500-40 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 SAIJ32X500-40 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 SIJ32X500-40
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×500 | 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 SIJ32X500-40 Is Used
Variable Depth Boring
Trimming the extend stroke by up to 40 mm on-site allows operators to fine-tune boring depth without changing the entire cylinder setup.
Adjustable Transfer Pusher
A 460-500 mm extend window accommodates varying package sizes on a line, letting the stop screw set the exact ejection position.
Prototype Actuation Stops
During prototype testing, the external stop screw provides rapid end-position adjustments to test different actuation distances safely.
Replacing the Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X500-40 with the SAIJ32X500-40
To replace the discontinued SIJ32X500-40, order the SAIJ32X500-40 directly—it is a direct match for the 32 mm bore, 500 mm stroke, 40 mm adjust window, and G1/8 port. Choose the 40 mm adjust window if your field tuning requires trimming the extend stroke by up to 40 mm; the nominal 500 mm remains the maximum. Mounting options include FA, LB, and TC brackets. Because this configuration lacks the -S magnet, it cannot support legacy CS1-B or DS1-B sensors. For a 500 mm stroke, ensure external guides support the rod to prevent bending and side-load wear. The stop screw is not a lock; for load holding on air loss, use an external rod lock or pilot-operated check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ32X500-40
- ✓ 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 SIJ32X500-40 FAQ
Yes, the SIJ32X500-40 is discontinued. The direct replacement is the SAIJ32X500-40, which matches the 32 mm bore, 500 mm stroke, 40 mm adjust window, G1/8 port, and ISO 15552 mounting interface.
The external stop screw allows you to trim the extend stroke by up to 40 mm on-site, giving a usable stroke range of 460-500 mm.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ32X500-40
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X500-40 replacement — usually within 7-8 hours.