This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X75-75S, 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 SIJ100X75-75S
The AirTAC SIJ100 Double Rod Adjustable Cylinder SIJ100X75-75S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 75mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X75-75S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke75 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ100X75-75S
- 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 SIJ100X75-75S
The AirTAC SIJ100X75-75S is a discontinued double-acting, double-rod ISO 15552 adjustable-stroke cylinder featuring a built-in piston magnet (-S). Its external stop screw allows you to trim the extend stroke by up to 75 mm on-site, providing a usable extend window of 0-75 mm from the 75 mm nominal maximum. This 100 mm bore utilizes a G1/2 port, M20x1.5 rod thread, and 36 mm adjustable air cushions at each end. The stop screw strictly sets the end position and is not a load lock.
The direct replacement is the SAIJ100X75-75S, matching the ISO 15552 interface, bore, stroke, adjust window, port, and mounting. The SAIJ family introduces an upgraded piston seal utilizing two Y-shaped one-way elements for low start-up pressure and extended life.
Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X75-75S Technical Specifications
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X75-75S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X75-75S |
| Bore size | Ø100 mm |
| Stroke | 75 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 SAIJ100X75-75S 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 SAIJ100X75-75S 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 SIJ100X75-75S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×75 | 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 SIJ100X75-75S Is Used
Variable Depth Forming
Ideal for pressing or forming stations where the exact material thickness varies, using the 75 mm adjust window to tune the extend endpoint precisely on-site without swapping cylinders.
Adjustable Diverter Gate
Perfect for diverting varying package sizes on a conveyor line, allowing operators to dial in the push stroke from 0 to 75 mm to accommodate different box dimensions quickly.
Custom End-Stop Positioning
Used in pallet handling stops where the precise end position must be tweaked during commissioning, setting the exact 75 mm extend limit without needing external mechanical stops.
Replacing the Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X75-75S with the SAIJ100X75-75S
To replace the discontinued SIJ100X75-75S, order the exact direct replacement SAIJ100X75-75S, retaining the same ISO 15552 mounting interface (Basic, FA, LB, TC, FTC, TCM1, TCM2) and G1/2 port. The 75 mm adjust window is ideal for applications needing field stroke tuning from 0 to 75 mm without machining. The -S suffix indicates a piston magnet for legacy CS1-B/DS1-B switches; the SAIJ replacement uses current AirTAC switches. For stroke lengths of 300 mm or greater, verify side-load limits to prevent excessive guide wear. Remember, a plain cylinder does not hold loads on air loss; for held loads, use an external rod lock, pilot-operated check valve, or SAIL/BSAI variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ100X75-75S
- ✓ 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 SIJ100X75-75S FAQ
Yes, the SIJ100X75-75S is discontinued. The direct replacement is the SAIJ100X75-75S. It shares the same ISO 15552 interface, 100 mm bore, 75 mm stroke, 75 mm adjust window, G1/2 port, and mounting options, while adding an upgraded SAI piston seal for longer life.
The external stop screw provides a 0-75 mm adjustable extend window (trimming up to 75 mm from the 75 mm nominal stroke). The stop sets end position only; it is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ100X75-75S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X75-75S replacement — usually within 7-8 hours.