This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X120-20, 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 SIJ100 Double Rod Adjustable Cylinder SIJ100X120-20
The AirTAC SIJ100 Double Rod Adjustable Cylinder SIJ100X120-20 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 120mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X120-20, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke120 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ100X120-20
- 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 SIJ100 Double Rod Adjustable Cylinder SIJ100X120-20
The AirTAC SIJ100X120-20 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 100 mm bore and 120 mm maximum extend stroke. An external stop screw lets you trim the extend stroke on-site by up to 20 mm, yielding a usable 100-120 mm window. The direct replacement is the SAIJ100X120-20, matching the ISO 15552 interface, force, and mounting.
The SAIJ successor retains the core specs but uses an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life. Note this non-magnetic SKU cannot accept a sensor switch. The stop screw sets end position but is not a load lock; use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X120-20 Technical Specifications
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X120-20 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X120-20 |
| Bore size | Ø100 mm |
| Stroke | 120 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 SAIJ100X120-20 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 SAIJ100X120-20 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 SIJ100X120-20
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | 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 SIJ100 Double Rod Adjustable Cylinder SIJ100X120-20 Is Used
Press Fit Tuning
Allows operators to dial in the exact 100-120 mm extend position for seating bearings without machining hard stop spacers.
Transfer Diverter
Provides adjustable extend limits to accommodate varying package widths on a sorting line within the 20 mm window.
Replacing the Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X120-20 with the SAIJ100X120-20
To replace the discontinued SIJ100X120-20, order the direct replacement SAIJ100X120-20, keeping the exact 120 mm maximum stroke and 20 mm adjust window (100-120 mm usable extend). Mounting interchangeability via the ISO 15552 interface is retained for Basic, FA, LB, and TC foot/center mounts. Because this SKU lacks the -S magnet, it cannot accept legacy CS1-B/DS1-B sensors. For stroke lengths at or above 300 mm, verify side-load guiding to prevent rod binding. The external stop sets end position and is not a lock; for load holding on air loss, specify an external rod lock or pilot-operated check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ100X120-20
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X120-20 FAQ
Yes, the SIJ100X120-20 is discontinued. The direct replacement is the SAIJ100X120-20, offering the same ISO 15552 interface, 100 mm bore, 120 mm stroke, 20 mm adjust window, and G1/2 port.
The external stop screw allows trimming the extend stroke by up to 20 mm on-site (usable 100-120 mm). The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ100X120-20
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X120-20 replacement — usually within 7-8 hours.