This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X500-20, 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 SIJ32X500-20
The AirTAC SIJ32 Double Rod Adjustable Cylinder SIJ32X500-20 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 SAIJ32X500-20, 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 → SAIJ32X500-20
- 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 SIJ32X500-20
The AirTAC SIJ32X500-20 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder. An external stop screw lets you trim the extend stroke by up to 20 mm on-site, giving a usable 480-500 mm stroke. The nominal 500 mm is the maximum. This 32 mm bore uses a G1/8 port, M10x1.25 rod thread, and 27 mm adjustable cushions.
The direct replacement is the SAIJ32X500-20, sharing the same interface, force, and port. The SAIJ upgrade uses a two Y-shaped one-way piston seal for low start-up pressure and long life. Note this non-magnetic SKU cannot take a switch, and the stop screw sets end position but is not a load lock.
Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X500-20 Technical Specifications
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X500-20 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X500-20 |
| 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 SAIJ32X500-20 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 SAIJ32X500-20 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 SIJ32X500-20
| 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 SIJ32X500-20 Is Used
Adjustable End-Stop Pressing
Dialing in the exact 480-500 mm extend position on-site for light pressing tasks without swapping the cylinder.
Variable Length Diverter
Tuning the extend stop to deflect varying package sizes on a conveyor line within the 20 mm window.
Calibrated Push-Away Arm
Setting a precise ejection distance for parts handling, adjusting the stop screw as product dimensions change.
Replacing the Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X500-20 with the SAIJ32X500-20
To replace the discontinued SIJ32X500-20, order the direct replacement SAIJ32X500-20, reusing your existing FA, LB, or TC ISO 15552 mounts. The 20 mm adjust window lets you fine-tune the extend end position from 480 to 500 mm on-site. Because this SKU lacks the -S suffix, it cannot accept a magnetic switch; add the -S option on SAIJ if you need legacy CS1-B/DS1-B sensing. Finally, at 500 mm stroke, mind the side-load and rod-bending risks—use external guides to prevent deflection.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ32X500-20
- ✓ 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 SIJ32X500-20 FAQ
Yes, the SIJ32X500-20 is discontinued. The direct replacement is the SAIJ32X500-20. It shares the same ISO 15552 mounting interface, 32 mm bore, 500 mm stroke, 20 mm adjust window, and G1/8 port. The SAIJ family features an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life.
The theoretical max is 82 kgf at 1.0 MPa. The external stop screw provides a 20 mm adjust window, shortening the extend stroke from the 500 mm maximum down to 480 mm. The stop sets end position only; it is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ32X500-20
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X500-20 replacement — usually within 7-8 hours.