This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X50-40, 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 SIJ32X50-40
The AirTAC SIJ32 Double Rod Adjustable Cylinder SIJ32X50-40 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 SAIJ32X50-40, 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 → SAIJ32X50-40
- 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 SIJ32X50-40
The AirTAC SIJ32X50-40 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 32mm bore and 50mm nominal 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 SAIJ32X50-40, matching the interface, force, and mounting.
The SAIJ successor incorporates an upgraded piston seal with two Y-shaped one-way elements for lower start-up pressure and longer life. Note this SKU lacks a magnet (-S omitted), so it cannot accept a magnetic switch. The stop screw sets end position only; it is not a load lock.
Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X50-40 Technical Specifications
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X50-40 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X50-40 |
| 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 SAIJ32X50-40 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 SAIJ32X50-40 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 SIJ32X50-40
| 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 SIJ32X50-40 Is Used
Short-stroke clamping
Tuning the extend down to 10mm provides precise clamping contact on delicate workpieces without re-mounting the actuator.
Variable diverter stroke
Adjusting the extend stop on-site lets a diverter gate accommodate different package sizes on a single conveyor line.
Prototype positioning
The 40mm trim window allows engineers to dial in the exact end position during fixture prototyping before finalizing hard stops.
Replacing the Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X50-40 with the SAIJ32X50-40
To replace the discontinued SIJ32X50-40, specify the direct replacement SAIJ32X50-40, retaining the 50mm nominal stroke and 40mm adjust window. Mounting attachments (FA, LB, TC) reuse the ISO 15552 interface directly. Because this SKU has no -S suffix, it cannot support legacy CS1-B/DS1-B sensors; confirm external sensing if required. Since the 50mm stroke is under 300mm, side-load shaft deflection is minimal. Remember the adjust stop sets end position but provides no load-holding; for drifting loads use an external rod lock or SAIL/BSAI variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ32X50-40
- ✓ 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 SIJ32X50-40 FAQ
Yes, the SIJ32X50-40 is discontinued. The direct replacement is the SAIJ32X50-40, which shares the same ISO 15552 interface, 32mm bore, 50mm stroke, 40mm adjust window, and G1/8 port.
The external stop screw provides a 40mm trim window, allowing the 50mm extend stroke to be shortened to 10mm on-site.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ32X50-40
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X50-40 replacement — usually within 7-8 hours.