This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X400-40, 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 SIJ32X400-40
The AirTAC SIJ32 Double Rod Adjustable Cylinder SIJ32X400-40 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 400mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X400-40, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke400 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAIJ32X400-40
- 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 SIJ32X400-40
The AirTAC SIJ32X400-40 is a double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 32mm bore and 400mm maximum stroke. An external stop screw lets you trim the extend stroke by up to 40mm on-site, yielding a usable 360-400mm extension window. The SIJ line is discontinued; the direct replacement is the SAIJ32X400-40, matching the interface, force, and adjust window.
The SAIJ upgrade utilizes an upgraded two-piece Y-shaped piston seal for lower start-up pressure and longer life. Because this SKU lacks a -S magnet, it cannot accept a magnetic switch. The stop screw sets the end position but is not a load lock; use SAIL or BSAI for held loads.
Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X400-40 Technical Specifications
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X400-40 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X400-40 |
| Bore size | Ø32 mm |
| Stroke | 400 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 SAIJ32X400-40 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 SAIJ32X400-40 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 SIJ32X400-40
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×400 | 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 SIJ32X400-40 Is Used
Custom Positioning Jigs
Trimming the extend stroke by up to 40mm on-site allows operators to dial in exact end positions for variable-depth clamping without machining custom spacers.
Variable-Length Reject Arms
A 360-400mm extend window provides the flexibility to reposition a reject pusher along a conveyor line when product sizes change.
Adjustable Depth Stops
The external stop screw lets maintenance teams fine-tune the 400mm maximum stroke to match varying package depths on the fly.
Replacing the Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X400-40 with the SAIJ32X400-40
To replace the discontinued SIJ32X400-40, order the direct replacement SAIJ32X400-40, which preserves the 400mm nominal stroke, 40mm adjust window, and G1/8 port. Select the 40mm adjust window if your field tuning requires trimming the extend stroke by up to 40mm on-site. Mounting options include FA, LB, and TC brackets. Because this SKU has no -S suffix, it cannot support legacy CS1-B/DS1-B sensors. For the 400mm stroke, use external guides to mitigate rod-bending and side-load risks.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ32X400-40
- ✓ 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 SIJ32X400-40 FAQ
Yes, the SIJ32X400-40 is discontinued. The direct replacement is the SAIJ32X400-40, which shares the same ISO 15552 interface, 32mm bore, 400mm 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 360-400mm extension window. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ32X400-40
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X400-40 replacement — usually within 7-8 hours.