This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X450-100, 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 SIJ100X450-100
The AirTAC SIJ100 Double Rod Adjustable Cylinder SIJ100X450-100 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 450mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X450-100, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke450 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ100X450-100
- 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 SIJ100X450-100
The AirTAC SIJ100X450-100 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 100 mm on-site, yielding a usable 350-450 mm extension from the 450 mm nominal maximum. As an end-of-life unit, its direct replacement is the SAIJ100X450-100, sharing the same ISO 15552 mounting interface, force, and adjust window.
The SAIJ successor introduces an upgraded two-piece Y-shaped piston seal for lower start-up pressure and longer life. This SKU lacks a -S magnet and cannot accept a sensor. Note that the stop screw sets the end position but is not a load lock; the cylinder drifts on air loss, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X450-100 Technical Specifications
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X450-100 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X450-100 |
| Bore size | Ø100 mm |
| Stroke | 450 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 SAIJ100X450-100 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 SAIJ100X450-100 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 SIJ100X450-100
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×450 | 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 SIJ100X450-100 Is Used
Variable Press Stroke
Trimming the extend stroke by up to 100 mm on-site allows a press to accommodate varying material thicknesses without repositioning the entire ISO 15552 fixture.
Adjustable Diverter Arm
A 100 mm external stop window lets operators fine-tune the pusher extension length on a sorting line to handle different package sizes on the fly.
Variable Depth Palletizing
Shortening the 450 mm nominal extend stroke dynamically ensures a gripper lowers precisely to varying pallet stack heights without re-engineering the actuator mounting.
Replacing the Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X450-100 with the SAIJ100X450-100
To replace the discontinued SIJ100X450-100, order the direct replacement SAIJ100X450-100, which preserves the G1/2 port, 25 mm rod, 36 mm adjustable cushion, and ISO 15552 mounting footprint. Choose the 100 mm adjust window to cover your exact end-positioning needs. Mounting options include FA, LB, and TC brackets. Because this is a non-magnetized SKU, you cannot mount legacy CS1-B/DS1-B sensors. For the 450 mm stroke, add external guides to prevent rod bending and manage side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ100X450-100
- ✓ 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 SIJ100X450-100 FAQ
Yes, the AirTAC SIJ100X450-100 is discontinued. The direct replacement is the SAIJ100X450-100. It shares the same 100 mm bore, 450 mm nominal stroke, 100 mm adjust window, G1/2 port, and ISO 15552 mounting interface, while adding an upgraded piston seal.
The external stop screw provides a 100 mm adjust window, allowing you to shorten the 450 mm extend stroke down to 350 mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ100X450-100
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X450-100 replacement — usually within 7-8 hours.