This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X350-40S, 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 SIJ32X350-40S
The AirTAC SIJ32 Double Rod Adjustable Cylinder SIJ32X350-40S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 350mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X350-40S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke350 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAIJ32X350-40S
- 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 SIJ32X350-40S
The AirTAC SIJ32X350-40S is a discontinued double-acting double-rod adjustable-stroke ISO 15552 cylinder. An external stop screw lets you trim the extend stroke by up to 40 mm on-site, yielding a usable 310-350 mm window from the 350 mm nominal maximum. The direct replacement is the SAIJ32X350-40S, sharing the same interface, force, and mounting.
The SAIJ upgrade utilizes an upgraded two Y-shaped one-way piston seal for low start-up pressure and long life. The stop screw sets end position only; it is not a load lock, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X350-40S Technical Specifications
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X350-40S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X350-40S |
| Bore size | Ø32 mm |
| Stroke | 350 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 SAIJ32X350-40S 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 SAIJ32X350-40S 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 SIJ32X350-40S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×350 | 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 SIJ32X350-40S Is Used
Tooling Positioning
Ideal for custom jig stations where operators must trim the extend stroke by up to 40 mm on-site to accommodate varying part dimensions without changing the cylinder.
Transfer Diverter
Useful on conveyor lines where the 32 mm bore pushes diverters at 30-800 mm/s and the external stop screw sets the exact end position for specific package sizes.
Packing Stopper
Deployed in packing machines to halt cardboard materials at a precise 310-350 mm window, allowing rapid field adjustment when box formats change.
Replacing the Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X350-40S with the SAIJ32X350-40S
To replace the discontinued SIJ32X350-40S, order the exact direct replacement SAIJ32X350-40S to retain the 32 mm bore, 350 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 on-site. Mounting options include FA, LB, and TC brackets. The -S suffix means a piston magnet is present for legacy CS1-B/DS1-B switches. Because the 350 mm stroke is relatively long, verify side-load conditions and use external guides to prevent rod bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ32X350-40S
- ✓ 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 SIJ32X350-40S FAQ
Yes, the SIJ32X350-40S is discontinued. The direct replacement is the SAIJ32X350-40S. It shares the same ISO 15552 interface, 32 mm bore, 350 mm stroke, 40 mm adjust window, and G1/8 port, but features an upgraded piston seal for longer life.
The external stop screw allows you to trim the extend stroke by up to 40 mm on-site, creating a usable 310-350 mm window. The stop sets end position only and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ32X350-40S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X350-40S replacement — usually within 7-8 hours.