This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X225-100, 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 SIJ63 Double Rod Adjustable Cylinder SIJ63X225-100
The AirTAC SIJ63 Double Rod Adjustable Cylinder SIJ63X225-100 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 225mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ63X225-100, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke225 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAIJ63X225-100
- 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 SIJ63 Double Rod Adjustable Cylinder SIJ63X225-100
The AirTAC SIJ63X225-100 is a double-acting double-rod ISO 15552 adjustable-stroke cylinder, now discontinued and replaced by the SAIJ63X225-100. It uses an external stop screw to trim the extend stroke by up to 100 mm on-site, giving a usable extend range of 125-225 mm from the 225 mm nominal maximum. The G3/8 port and M16x1.5 rod end define this 63 mm bore interface.
The direct replacement SAIJ63X225-100 retains the ISO 15552 mounting dimensions, bore, stroke, and adjust window, but upgrades to a two Y-shaped one-way piston seal for lower start-up pressure and longer life. The stop screw sets end position but is not a load lock; for held loads use an external rod lock or SAIL/BSAI variant. This non-magnetic SKU cannot take a switch.
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X225-100 Technical Specifications
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X225-100 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X225-100 |
| Bore size | Ø63 mm |
| Stroke | 225 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M16×1.5 |
| 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, 30 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAIJ63X225-100 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
The SAIJ63X225-100 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X225-100
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | 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 SIJ63 Double Rod Adjustable Cylinder SIJ63X225-100 Is Used
Variable-depth machining stops
Adjusts the extend stroke on-site to set precise material stop positions for parts of varying lengths without reprogramming the motion controller.
Adjustable carton flap folding
Tunes the extend reach on packaging lines to accommodate different box heights, ensuring flaps fold correctly without crushing the container.
Variable-position pallet pushing
Trims the pusher stroke to align mixed pallet loads accurately, preventing over-travel when handling varying product depths.
Replacing the Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X225-100 with the SAIJ63X225-100
To replace the SIJ63X225-100, order the direct replacement SAIJ63X225-100, keeping the same 63 mm bore, 225 mm nominal stroke, 100 mm adjust window, and G3/8 port. Choose the 100 mm adjust window only if you genuinely need to trim the extend stroke on-site across a 125-225 mm range. Mounting interfaces (Basic, FA, LB, TC) reuse existing ISO 15552 brackets. This SKU lacks the -S magnet and cannot take a sensor; for legacy sensing use CS1-B/DS1-B on -S models. For strokes of 300 mm or longer, verify side-load guidance to prevent rod bearing wear. The stop screw sets end position but does not hold the load on air loss.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ63X225-100
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X225-100 FAQ
Yes, the SIJ63X225-100 is discontinued. The direct replacement is the SAIJ63X225-100, which matches the ISO 15552 interface, 63 mm bore, 225 mm stroke, 100 mm adjust window, and G3/8 port. The SAIJ adds an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life.
The external stop screw window is 100 mm, allowing the extend stroke to be shortened from the 225 mm maximum down to 125 mm on-site. The stop sets end position only; it is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ63X225-100
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ63X225-100 replacement — usually within 7-8 hours.