This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X50-40S, 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 SIJ32X50-40S
The AirTAC SIJ32 Double Rod Adjustable Cylinder SIJ32X50-40S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 50mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X50-40S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke50 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAIJ32X50-40S
- 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 SIJ32X50-40S
The AirTAC SIJ32X50-40S is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 32mm bore and 50mm maximum stroke. An external stop screw lets you trim the extend stroke by up to 40mm on-site, yielding a usable 10-50mm extension. The direct replacement is the SAIJ32X50-40S, matching the G1/8 port, M10x1.25 rod thread, and 27mm adjustable cushions.
The SAIJ successor reuses the ISO 15552 mounting interface and adds an upgraded two-piece Y-shaped piston seal for lower start-up pressure. The stop screw sets the end position but is not a lock; use SAIL or BSAI for held loads.
Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X50-40S Technical Specifications
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X50-40S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X50-40S |
| Bore size | Ø32 mm |
| Stroke | 50 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 SAIJ32X50-40S 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 SAIJ32X50-40S 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 SIJ32X50-40S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×50 | 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 SIJ32X50-40S Is Used
Light-Part Ejection
Tune the extend stroke on-site to eject delicate parts from a fixture without adding external hard stops.
Variable Transfer Stops
Adjust the stop finger position precisely on a packaging line to handle different carton widths.
Sensor Probe Actuation
Dial in the probe extension distance during machine commissioning to avoid crashing into test targets.
Replacing the Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X50-40S with the SAIJ32X50-40S
To replace the discontinued SIJ32X50-40S, order the direct replacement SAIJ32X50-40S, keeping the -S magnet for legacy CS1-B/DS1-B switches. The 40mm adjust window is ideal if your exact extend distance is field-tuned between 10mm and 50mm. Mounting uses FA, LB, or TC brackets. For strokes >=300mm, verify side-load limits. Remember the stop screw sets position but does not lock; for load holding without live air, select SAIL, BSAI, or an external rod lock.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ32X50-40S
- ✓ 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 SIJ32X50-40S FAQ
Yes, the SIJ32X50-40S is discontinued. The direct replacement is the SAIJ32X50-40S, offering the same ISO 15552 interface, 32mm bore, 50mm stroke, 40mm adjust window, and G1/8 port.
The external stop screw allows you to trim the extend stroke by up to 40mm on-site, giving a usable 10-50mm extension. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ32X50-40S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X50-40S replacement — usually within 7-8 hours.