This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X100-20S, 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 SIJ100 Double Rod Adjustable Cylinder SIJ100X100-20S
The AirTAC SIJ100 Double Rod Adjustable Cylinder SIJ100X100-20S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 100mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X100-20S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke100 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ100X100-20S
- 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 SIJ100 Double Rod Adjustable Cylinder SIJ100X100-20S
The AirTAC SIJ100X100-20S 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 20 mm on-site, yielding a usable 80-100 mm extension from the 100 mm nominal maximum. The stop sets the end position but is not a load lock.
The direct replacement is the SAIJ100X100-20S, preserving the ISO 15552 mounting interface, force, and adjust window. The SAIJ upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The -S suffix provides a piston magnet for legacy CS1-B/DS1-B switches.
Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X100-20S Technical Specifications
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X100-20S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X100-20S |
| Bore size | Ø100 mm |
| Stroke | 100 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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, 36 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAIJ100X100-20S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAIJ100X100-20S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X100-20S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | 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).
Where the Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X100-20S Is Used
Press Fit Tuning
Needs field stroke tuning to set precise 80-100 mm extend positions for pressing bearings without machining hard stops.
Diverter Positioning
Requires adjustable extend limits to alter the pusher stroke on-site as package sizes change on the line.
Carton Sealing
Demands on-site stroke trimming to accommodate varying flap heights, using the external stop to prevent overtravel.
Replacing the Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X100-20S with the SAIJ100X100-20S
Replace the discontinued SIJ100X100-20S directly with the SAIJ100X100-20S. Choose the 20 mm adjust window if your extend stroke needs on-site tuning between 80 and 100 mm. Mounting options include Basic, FA, LB, and TC. The -S suffix ensures a piston magnet is present for legacy CS1-B/DS1-B sensors. For strokes >=300 mm, verify the side-load capacity to prevent guide failure. A plain cylinder does not hold loads on air loss; use an external rod lock or pilot-operated check valve for held loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ100X100-20S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X100-20S FAQ
Yes, the SIJ100X100-20S is discontinued. The direct replacement is the SAIJ100X100-20S, which shares the same ISO 15552 interface, G1/2 port, and 20 mm adjust window. The SAIJ uses an upgraded two Y-shaped one-way piston seal for longer life.
The theoretical max is 801 kgf at 1.0 MPa. The external stop screw window is 20 mm, allowing you to trim the extend stroke from 100 mm down to 80 mm on-site.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ100X100-20S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X100-20S replacement — usually within 7-8 hours.