This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X500-75S, 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 SIJ32X500-75S
The AirTAC SIJ32 Double Rod Adjustable Cylinder SIJ32X500-75S 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 SAIJ32X500-75S, 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 → SAIJ32X500-75S
- 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 SIJ32X500-75S
The AirTAC SIJ32X500-75S 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 75 mm on-site, yielding a usable 425-500 mm range from the 500 mm nominal maximum. The 32 mm bore uses a G1/8 port, M10x1.25 rod thread, and 27 mm adjustable cushions. The direct replacement is the SAIJ32X500-75S, retaining the same interface, force, and adjust window.
The SAIJ upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The stop screw sets the end position but is not a load lock; use an external rod lock or the SAIL/BSAI variants for held loads. The -S suffix provides a piston magnet for legacy CS1-B/DS1-B switches.
Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X500-75S Technical Specifications
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X500-75S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X500-75S |
| 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 SAIJ32X500-75S 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 SAIJ32X500-75S 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 SIJ32X500-75S
| 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 SIJ32X500-75S Is Used
Adjustable End-Stop Pressing
Dial in the exact 425-500 mm extend position on-site for light pressing tasks without machining custom spacers.
Variable Length Diverting
Tune the extend stroke by up to 75 mm to accommodate different package sizes on a 32 mm bore diverting arm.
Adjustable Height Indexing
Set precise end positions for indexing pallets, allowing quick field adjustments as pallet heights change.
Replacing the Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X500-75S with the SAIJ32X500-75S
To replace the discontinued SIJ32X500-75S, order the direct replacement SAIJ32X500-75S, keeping the same 32 mm bore, 500 mm nominal stroke, 75 mm adjust window, and G1/8 port. Choose the 75 mm adjust window if you need on-site extend tuning between 425 and 500 mm. Mounting options include FA, LB, and TC brackets. The -S suffix ensures a piston magnet for legacy CS1-B/DS1-B switches. Because the 500 mm stroke exceeds 300 mm, account for side-load and rod-bending by using external guides to prevent premature wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ32X500-75S
- ✓ 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 SIJ32X500-75S FAQ
Yes, the SIJ32X500-75S is discontinued. The direct replacement is the SAIJ32X500-75S, which shares the same ISO 15552 interface, 32 mm bore, 500 mm stroke, 75 mm adjust window, and G1/8 port.
The external stop screw allows you to trim the extend stroke by up to 75 mm on-site, giving a usable range of 425-500 mm. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ32X500-75S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X500-75S replacement — usually within 7-8 hours.