This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X100-40, 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.

The AirTAC SIJ32 Double Rod Adjustable Cylinder SIJ32X100-40 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 100mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X100-40, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ32X100-40 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder. An external stop screw lets you trim the extend stroke by up to 40mm on-site, yielding a usable 60-100mm stroke from the 100mm nominal maximum.
As this SIJ is end-of-life, the direct replacement is the SAIJ32X100-40, matching the ISO 15552 interface, force, and mounting. The SAIJ upgrade uses a two Y-shaped one-way piston seal for low start-up pressure and long life. The stop sets end position but is not a load lock; use SAIL/BSAI or an external rod lock for held loads.
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X100-40 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X100-40 |
| Bore size | Ø32 mm |
| Stroke | 100 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 SAIJ32X100-40 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAIJ32X100-40 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×100 | 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).
Trimming the extend stroke by up to 40mm on-site to dial in the exact contact point for a light-duty 32mm bore pressing or forming task.
Adjusting the extend stop externally to tune the pusher length without disassembling the cylinder mount when product sizes change.
Setting a precise 60-100mm extend position for a lightweight routing gate where the full 100mm stroke would overshoot the target.
To replace the discontinued SIJ32X100-40, order the direct replacement SAIJ32X100-40. Size both ways using 0.5MPa push force: the 32mm bore yields 402N, while the neighbouring 40mm bore yields 628N. Choose the 40mm adjust window if your field stroke tuning requires trimming the extend by up to 40mm. Mounting interfaces (Basic, FA, LB, TC) are reused. This SKU lacks the -S magnet and cannot take a magnetic switch. For strokes >=300mm, verify side-load tolerance. The stop screw sets end position and does not hold loads on air loss.
Replacement checklist
Yes, the SIJ32X100-40 is discontinued. The direct replacement is the SAIJ32X100-40. It matches the ISO 15552 interface, 32mm bore, 100mm nominal stroke, 40mm adjust window, G1/8 port, and mounting. The SAIJ family also adds an upgraded two Y-shaped one-way piston seal for lower start-up pressure.
The external stop screw window is 40mm, allowing an on-site extend stroke trim from the 100mm maximum down to 60mm. The stop sets end position but is not a load lock; use an external rod lock or SAIL/BSAI for held loads.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X100-40 replacement — usually within 7-8 hours.