This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X20-20, 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 SIJ32X20-20
The AirTAC SIJ32 Double Rod Adjustable Cylinder SIJ32X20-20 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 20mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X20-20, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke20 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAIJ32X20-20
- 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 SIJ32X20-20
The AirTAC SIJ32X20-20 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 32 mm bore and 20 mm maximum extend stroke. An external stop screw lets you trim the extend stroke by up to 20 mm on-site, yielding a usable 0-20 mm window. The stop sets the end position; it is not a load lock.
Because SIJ is end-of-life, the direct replacement is the SAIJ32X20-20, retaining the same interface, force, and mounting. The SAIJ upgrade uses an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. This non-magnetic SKU cannot take a switch; for held loads use an external rod lock.
Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X20-20 Technical Specifications
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X20-20 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X20-20 |
| Bore size | Ø32 mm |
| Stroke | 20 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 SAIJ32X20-20 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 SAIJ32X20-20 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 SIJ32X20-20
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×20 | 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 SIJ32X20-20 Is Used
Short-Stroke Clamping
Field-tunes the 0-20 mm extend contact point on small machining fixtures without swapping cylinders.
Miniature Positioning Stops
Acts as an adjustable hard stop for delicate electronic component placement, trimming up to 20 mm on-site.
Lab Actuation Limits
Provides precise end-position control for low-force 402 N test rigs where exact 0-20 mm travel matters.
Replacing the Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X20-20 with the SAIJ32X20-20
To replace the discontinued SIJ32X20-20, order the direct replacement SAIJ32X20-20, reusing your existing FA, LB, or TC mounts. The 20 mm adjust window is ideal if your end-position needs field tuning between 0 and 20 mm. This SKU lacks the -S magnet, so it cannot accept a legacy CS1-B or DS1-B sensor. Because the 20 mm stroke is under 300 mm, side-load leverage is minimal. Remember the stop screw is not a lock; for load-holding without live air, specify an external rod lock or a SAIL/BSAI variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ32X20-20
- ✓ 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 SIJ32X20-20 FAQ
Yes, the SIJ32X20-20 is discontinued. The direct replacement is the SAIJ32X20-20, which shares the same ISO 15552 interface, 32 mm bore, 20 mm stroke, G1/8 port, and mounting options. The SAIJ family also features an upgraded piston seal.
The external stop screw allows you to trim the extend stroke by up to 20 mm on-site, giving a usable 0-20 mm window. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ32X20-20
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X20-20 replacement — usually within 7-8 hours.