This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X150-75S, 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 SIJ100X150-75S
The AirTAC SIJ100 Double Rod Adjustable Cylinder SIJ100X150-75S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 150mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X150-75S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke150 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ100X150-75S
- 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 SIJ100X150-75S
The AirTAC SIJ100X150-75S is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder. An external stop screw allows you to trim the extend stroke by up to 75 mm on-site, yielding a usable extension window of 75-150 mm from the 150 mm nominal maximum. The 100 mm bore features a 25 mm rod, M20x1.5 rod-end thread, 36 mm adjustable air cushions at each end, and a G1/2 port. The direct replacement is the SAIJ100X150-75S, sharing the same ISO 15552 mounting interface, bore, stroke, force, and adjust window.
The SAIJ successor upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life. The -S suffix denotes a built-in piston magnet for legacy CS1-B/DS1-B switches. The stop screw sets the end position but is not a lock; a plain cylinder drifts on air loss, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X150-75S Technical Specifications
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X150-75S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X150-75S |
| Bore size | Ø100 mm |
| Stroke | 150 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 SAIJ100X150-75S 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 SAIJ100X150-75S 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 SIJ100X150-75S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×150 | 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 SIJ100X150-75S Is Used
Variable Depth Forming Press
Requires field tuning of the extend stroke to accommodate different material thicknesses without reprogramming the machine cycle.
Adjustable Carton Sealing Head
Needs precise on-site stroke shortening to handle varying package heights on a packaging line, using the 75 mm adjust window.
Variable Position Diverter Gate
Demands adjustable reach to route different product sizes accurately, benefiting from the 75-150 mm usable extension range.
Replacing the Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X150-75S with the SAIJ100X150-75S
To replace the discontinued SIJ100X150-75S, order the exact direct replacement SAIJ100X150-75S, retaining the same ISO 15552 interface, G1/2 port, and 75 mm adjust window. Choose the 75 mm adjust window if your application requires field tuning the extend stroke down from the 150 mm maximum. Mounting options include Basic, FA, LB, and TC. The -S suffix ensures a piston magnet is present for legacy CS1-B/DS1-B switches (the SAIJ uses current AirTAC switches). For strokes at or above 300 mm, verify side-load limits to prevent guide bushing wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ100X150-75S
- ✓ 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 SIJ100X150-75S FAQ
Yes, the SIJ100X150-75S is discontinued. The direct replacement is the SAIJ100X150-75S. It shares the same ISO 15552 interface, 100 mm bore, 150 mm stroke, 75 mm adjust window, G1/2 port, and mounting options, while upgrading the piston seal to two Y-shaped one-way elements for longer life.
The external stop screw allows you to trim the extend stroke by up to 75 mm on-site, giving a usable extension window of 75-150 mm. The stop sets end position only; it is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ100X150-75S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X150-75S replacement — usually within 7-8 hours.