This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X225-75, 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 SIJ100X225-75
The AirTAC SIJ100 Double Rod Adjustable Cylinder SIJ100X225-75 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 225mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X225-75, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke225 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ100X225-75
- 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 SIJ100X225-75
The AirTAC SIJ100X225-75 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder. Its external stop screw lets you trim the extend stroke by up to 75 mm on-site, giving a usable forward range of 150-225 mm from the 225 mm nominal maximum.
The direct replacement is the SAIJ100X225-75, matching the interface, force, and mounting. The SAIJ upgrade uses a two Y-shaped one-way piston seal for low start-up pressure and long life. Note this non-magnetic SKU cannot take a switch; the stop sets end position but is not a load lock, so use an external rod lock for held loads.
Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X225-75 Technical Specifications
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X225-75 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X225-75 |
| Bore size | Ø100 mm |
| Stroke | 225 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 SAIJ100X225-75 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 SAIJ100X225-75 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 SIJ100X225-75
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×225 | 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 SIJ100X225-75 Is Used
Variable Depth Forming Press
Dialing in the exact material deformation depth on-site by trimming the extend stroke up to 75 mm without swapping the entire cylinder.
Adjustable Transfer Pusher
Accommodating varying package sizes on a packaging line by field-tuning the pusher's extend position within the 150-225 mm window.
Multi-Height Pallet Stop
Setting precise stopping points for different pallet heights in a handling system, using the external stop screw to set the exact end position.
Replacing the Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X225-75 with the SAIJ100X225-75
To replace the discontinued SIJ100X225-75, order the direct replacement SAIJ100X225-75, reusing your existing ISO 15552 FA, LB, or TC mounts. The 75 mm adjust window is ideal if your end-position target varies by up to 75 mm; choose a smaller window if you only need fine trimming. Because this SKU lacks the -S suffix, it cannot accept a magnetic switch—add -S if you need legacy CS1-B/DS1-B sensing. For strokes of 300 mm or longer, carefully manage side-load guiding. Finally, the external stop only sets the end position and is not a lock; for load-holding on air loss, specify a SAIL or BSAI lock variant or an external rod lock.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ100X225-75
- ✓ 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 SIJ100X225-75 FAQ
Yes, the SIJ100X225-75 is discontinued. The direct replacement is the SAIJ100X225-75, offering the same ISO 15552 interface, 100 mm bore, 225 mm stroke, 75 mm adjust window, G1/2 port, and mounting compatibility. The SAIJ family also features an upgraded two Y-shaped one-way piston seal for longer life and lower start-up pressure.
The external stop screw allows you to trim the extend stroke by up to 75 mm on-site, yielding a usable extend range of 150-225 mm. The stop sets the end position but is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ100X225-75
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X225-75 replacement — usually within 7-8 hours.