This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X225-75, 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 SIJ32X225-75
The AirTAC SIJ32 Double Rod Adjustable Cylinder SIJ32X225-75 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 225mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X225-75, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke225 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAIJ32X225-75
- 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 SIJ32X225-75
The AirTAC SIJ32X225-75 is a double-acting double-rod ISO 15552 adjustable-stroke cylinder, now discontinued. The direct replacement is the SAIJ32X225-75, matching the 32mm bore, 225mm nominal stroke, G1/8 port, and mounting interface. An external stop screw lets you trim the extend stroke by up to 75mm on-site, giving a usable 150-225mm window. The stop sets the end position but is not a load lock; use an external rod lock for held loads.
The SAIJ upgrade uses a two Y-shaped one-way piston seal for low start-up pressure and long life. This SKU lacks a -S magnet, so it cannot take a magnetic switch.
Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X225-75 Technical Specifications
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X225-75 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X225-75 |
| Bore size | Ø32 mm |
| Stroke | 225 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 SAIJ32X225-75 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 SAIJ32X225-75 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 SIJ32X225-75
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×225 | 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 SIJ32X225-75 Is Used
Diverter Gate Positioning
Trimming the extend stroke by up to 75mm on-site allows precise alignment of diverter gates without machining spacers, ensuring exact product routing.
Variable Depth Sealing Jaws
Adjusting the extend end position on the packaging line accommodates different carton depths quickly, setting the exact crush distance for safe sealing.
Adjustable Transfer Stops
Field-tuning the extend stroke lets a single conveyor stop handle mixed product sizes, setting the physical end position accurately for each run.
Replacing the Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X225-75 with the SAIJ32X225-75
Replace the discontinued SIJ32X225-75 directly with the SAIJ32X225-75, reusing your existing ISO 15552 FA, LB, or TC mounts. The 75mm adjust window is ideal for field-tuning the extend end position without machining. Because this non-magnetic SKU cannot accept a switch, add external sensors if detection is needed. For stroke lengths over 300mm, carefully manage side-load forces to prevent guide wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ32X225-75
- ✓ 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 SIJ32X225-75 FAQ
Yes, the SIJ32X225-75 is discontinued. The direct replacement is the SAIJ32X225-75. It shares the identical ISO 15552 interface, 32mm bore, 225mm stroke, 75mm adjust window, G1/8 port, and mounting options, but adds an upgraded two Y-shaped one-way piston seal.
The external stop screw provides a 75mm adjustment window, making the usable extend stroke 150-225mm. The G1/8 port and 27mm cushions are fixed by the bore.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ32X225-75
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X225-75 replacement — usually within 7-8 hours.