This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X120-20S, 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 SIJ32X120-20S
The AirTAC SIJ32 Double Rod Adjustable Cylinder SIJ32X120-20S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 120mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X120-20S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke120 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAIJ32X120-20S
- 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 SIJ32X120-20S
The AirTAC SIJ32X120-20S is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 32 mm bore and 120 mm maximum stroke. An external stop screw lets you trim the extend stroke by up to 20 mm on-site, yielding a usable 100-120 mm extension. The stop sets the end position but is not a load lock. It features a G1/8 port, M10x1.25 rod thread, 27 mm adjustable cushions, and a -S piston magnet for legacy CS1-B/DS1-B switches. Speed range is 30-800 mm/s.
The direct replacement is the SAIJ32X120-20S, retaining the same interface, force, and port. The SAIJ upgrades to a two Y-shaped one-way piston seal for lower start-up pressure. For load holding without live air, use an external rod lock or SAIL/BSAI variant.
Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X120-20S Technical Specifications
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X120-20S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X120-20S |
| Bore size | Ø32 mm |
| Stroke | 120 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 SAIJ32X120-20S 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 SAIJ32X120-20S 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 SIJ32X120-20S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×120 | 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 SIJ32X120-20S Is Used
Diverter Gate Positioning
Trimming the extend stroke by up to 20 mm on-site allows precise tuning of a diverter gate without machining spacer plates, ensuring exact product flow routing.
Variable Depth Sealing Jaws
Adjustable end positioning accommodates different package depths on a sealing station, letting operators dial in the 100-120 mm extend window quickly.
Transfer Pusher Stroke Tuning
A transfer pusher can be retracted 20 mm shorter to handle varied product lengths, preventing over-travel and crushing without changing the cylinder body.
Replacing the Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X120-20S with the SAIJ32X120-20S
To replace this discontinued SIJ32X120-20S, order the SAIJ32X120-20S; it is a direct keeping the 32 mm bore, 120 mm nominal stroke, 20 mm adjust window, G1/8 port, and ISO 15552 mounting. Choose the 20 mm adjust window if you need field tuning of the extend end position; the stop screw is not a lock. Mounting options include Basic, FA, LB, and TC. The -S suffix means a piston magnet is present for legacy CS1-B/DS1-B switches (the SAIJ uses current switches). For this 120 mm stroke, side-load is minimal, but for strokes >=300 mm ensure guide alignment to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ32X120-20S
- ✓ 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 SIJ32X120-20S FAQ
Yes, the AirTAC SIJ32X120-20S is discontinued. The direct replacement is the SAIJ32X120-20S. It shares the same ISO 15552 interface, 32 mm bore, 120 mm stroke, 20 mm adjust window, G1/8 port, and mounting, but uses an upgraded two Y-shaped one-way piston seal for lower start-up pressure.
The external stop screw provides a 20 mm adjust window, allowing you to shorten the extend stroke from 120 mm down to 100 mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ32X120-20S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X120-20S replacement — usually within 7-8 hours.