This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X900-75, 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 SIJ100X900-75
The AirTAC SIJ100 Double Rod Adjustable Cylinder SIJ100X900-75 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 900mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X900-75, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke900 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ100X900-75
- 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 SIJ100X900-75
The AirTAC SIJ100X900-75 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 900 mm nominal stroke and a 100 mm bore. An external stop screw lets you trim the extend stroke by up to 75 mm on-site, yielding a usable 825-900 mm window. The stop sets the end position and is not a load lock.
The direct replacement is the SAIJ100X900-75, matching the interface, bore, stroke, force, and mounting. The SAIJ upgrade uses a two Y-shaped one-way piston seal for low start-up pressure and long life. This non-magnetic SKU cannot take a switch.
Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X900-75 Technical Specifications
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X900-75 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X900-75 |
| Bore size | Ø100 mm |
| Stroke | 900 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 SAIJ100X900-75 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 SAIJ100X900-75 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 SIJ100X900-75
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×900 | 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 SIJ100X900-75 Is Used
Variable Depth Pressing
Trimming the extend stroke by up to 75 mm on-site allows operators to set precise pressing depths for 100 mm bore assemblies without machining custom spacers.
Adjustable Transfer Stops
A 900 mm transfer arm can be tuned between 825 and 900 mm to accommodate different product lengths on the line, setting the exact end position dynamically.
Variable Height Indexing
Indexing platforms use the external stop screw to dial in the exact extend position within the 75 mm window, adapting to varying pallet sizes on the fly.
Replacing the Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X900-75 with the SAIJ100X900-75
To replace the SIJ100X900-75, order the direct replacement SAIJ100X900-75, which preserves the G1/2 port, M20x1.5 rod thread, and 36 mm cushions. Choose the 75 mm adjust window if you need on-site end-position tuning between 825 and 900 mm. Mounting interfaces include Basic, FA, LB, and TC. Because this SKU lacks the -S suffix, it cannot accept a magnetic switch. For the 900 mm stroke, use external guides to prevent rod bending and manage side loads. The cylinder does not hold loads on air loss; for held loads use an external rod lock or the SAIL/BSAI variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ100X900-75
- ✓ 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 SIJ100X900-75 FAQ
Yes, the SIJ100X900-75 is discontinued. The direct replacement is the SAIJ100X900-75, which shares the same ISO 15552 interface, 100 mm bore, 900 mm stroke, 75 mm adjust window, G1/2 port, and mounting options. The SAIJ family also features an upgraded two Y-shaped one-way piston seal for longer life.
The external stop screw provides a 75 mm adjust window, allowing the extend stroke to be shortened from the 900 mm maximum down to 825 mm. The stop sets end position but is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ100X900-75
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X900-75 replacement — usually within 7-8 hours.