This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X500-75, 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 SIJ100X500-75
The AirTAC SIJ100 Double Rod Adjustable Cylinder SIJ100X500-75 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 500mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X500-75, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke500 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ100X500-75
- 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 SIJ100X500-75
The AirTAC SIJ100X500-75 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder featuring a 100mm bore and 500mm nominal stroke. An external stop screw allows you to trim the extend stroke on-site by up to 75mm, yielding a usable extend range of 425-500mm. The stop screw strictly sets the end position; it is not a load lock. Because this SKU lacks a -S magnet, it cannot accept a magnetic switch.
As the SIJ series is end-of-life, the direct replacement is the SAIJ100X500-75, matching the ISO 15552 mounting interface, bore, stroke, adjust window, and force. The SAIJ family incorporates an upgraded piston seal utilizing two Y-shaped one-way elements for lower start-up pressure and extended life. A plain cylinder drifts on air loss, so for load holding consider an external rod lock or the SAIL/BSAI lock variants.
Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X500-75 Technical Specifications
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X500-75 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X500-75 |
| Bore size | Ø100 mm |
| Stroke | 500 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 SAIJ100X500-75 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 SAIJ100X500-75 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 SIJ100X500-75
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×500 | 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 SIJ100X500-75 Is Used
Variable Depth Pressing
Allows operators to fine-tune the extend stroke on-site by up to 75mm to press components to varying depths without changing the entire cylinder.
Adjustable Transfer Stops
Provides a field-adjustable mechanical stop for diverter arms on conveyors, letting technicians alter the end position for different package sizes.
Variable Height Indexing
Enables precise on-site stroke trimming for indexing mechanisms where the target position must be occasionally shifted within the 425-500mm range.
Replacing the Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X500-75 with the SAIJ100X500-75
To replace the discontinued SIJ100X500-75, order the direct replacement SAIJ100X500-75, which preserves the 100mm bore, 500mm nominal stroke, 75mm adjust window, G1/2 port, and ISO 15552 mounting dimensions. Choose the 75mm adjust window if your application requires field tuning the extend stroke down to 425mm. Mounting options include Basic, FA, LB, and TC. Because this SKU has no -S suffix, it cannot support a magnetic switch. Furthermore, at a 500mm stroke, minimize side-load and rod-bending forces by utilizing external guides to support the rod.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ100X500-75
- ✓ 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 SIJ100X500-75 FAQ
Yes, the SIJ100X500-75 is discontinued. The direct replacement is the SAIJ100X500-75, which shares the identical ISO 15552 interface, 100mm bore, 500mm nominal stroke, 75mm adjust window, and G1/2 port. The SAIJ family also features an upgraded piston seal for longer life.
The external stop screw window is 75mm, allowing the extend stroke to be shortened on-site from the 500mm maximum down to 425mm. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ100X500-75
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X500-75 replacement — usually within 7-8 hours.