This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X75-50S, 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 SIJ32X75-50S
The AirTAC SIJ32 Double Rod Adjustable Cylinder SIJ32X75-50S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 75mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X75-50S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke75 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAIJ32X75-50S
- 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 SIJ32X75-50S
The AirTAC SIJ32X75-50S is a double-acting, double-rod ISO 15552 adjustable-stroke cylinder with a 32mm bore and G1/8 port. An external stop screw lets you trim the extend stroke by up to 50mm on-site, giving a usable extension range of 25-75mm; the nominal 75mm is the maximum. The stop sets the end position and is not a load lock.
This SIJ model is discontinued; the direct replacement is the SAIJ32X75-50S, sharing 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 -S suffix denotes a piston magnet for legacy CS1-B/DS1-B switches.
Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X75-50S Technical Specifications
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X75-50S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X75-50S |
| Bore size | Ø32 mm |
| Stroke | 75 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 SAIJ32X75-50S 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 SAIJ32X75-50S 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 SIJ32X75-50S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×75 | 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 SIJ32X75-50S Is Used
Variable Depth Drilling
A fixture needing precise drill depth variation without swapping cylinders. The stop screw trims the extend stroke by up to 50mm on-site, setting the exact 25-75mm end position for different material thicknesses.
Adjustable Push-off Diverter
A packaging line handling changing box sizes. The external stop screw allows operators to shorten the extend stroke on the fly to push varying carton widths without repositioning the ISO 15552 mount.
Tiered Parts Ejection
An ejection mechanism requiring different reach distances. The adjustable window lets the cylinder dial in the exact extend stroke for specific bin tiers, setting the end position precisely without custom spacers.
Replacing the Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X75-50S with the SAIJ32X75-50S
To replace the discontinued SIJ32X75-50S, order the SAIJ32X75-50S; it is a direct for the ISO 15552 mounting interface, bore, and G1/8 port. Size both ways: the neighbouring 40mm bore raises push to 628N at 0.5MPa, while a smaller option reduces footprint. The 50mm adjust window lets you set the extend stroke anywhere from 25 to 75mm on-site. Reuse FA, LB, or TC mounts directly. The -S magnet supports legacy CS1-B/DS1-B sensors, though the SAIJ uses current AirTAC switches. For strokes over 300mm, verify side-load limits. A plain cylinder drifts on air loss; for held loads use an external rod lock or SAIL/BSAI variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ32X75-50S
- ✓ 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 SIJ32X75-50S FAQ
Yes, the AirTAC SIJ32X75-50S is discontinued. The direct replacement is the SAIJ32X75-50S. It shares the same 32mm bore, 75mm nominal stroke, 50mm adjust window, G1/8 port, and ISO 15552 mounting interface, but adds an upgraded two Y-shaped one-way piston seal for longer life.
The external stop screw provides a 50mm adjust window, allowing you to trim the extend stroke from the 75mm maximum down to 25mm on-site. The stop sets end position only; it is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ32X75-50S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X75-50S replacement — usually within 7-8 hours.