This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X100-40, 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 SIJ63X100-40
The AirTAC SIJ63 Double Rod Adjustable Cylinder SIJ63X100-40 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 100mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ63X100-40, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke100 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAIJ63X100-40
- 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 SIJ63X100-40
The AirTAC SIJ63X100-40 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder. A 63mm bore with a 100mm nominal extend stroke features an external stop screw that lets you trim the extend stroke by up to 40mm on-site, yielding a usable 60-100mm stroke window.
Because the SIJ family is end-of-life, the direct replacement is the SAIJ63X100-40, matching the ISO 15552 mounting interface, bore, force, and port. The SAIJ upgrade utilizes a two Y-shaped one-way piston seal for low start-up pressure and long life. This SKU has no -S magnet and cannot take a switch; the stop screw sets end position but is not a load lock.
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X100-40 Technical Specifications
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X100-40 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X100-40 |
| Bore size | Ø63 mm |
| Stroke | 100 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 SAIJ63X100-40 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 SAIJ63X100-40 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 SIJ63X100-40
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×100 | 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 SIJ63X100-40 Is Used
Variable Stroke Clamping
Clamping parts of differing heights on a single fixture, using the 40mm adjust screw to tune the extend stroke down to 60mm without repositioning the cylinder body.
Adjustable Transfer Stops
Routing varied package sizes on a conveyor line by field-adjusting the stop finger position on-site, utilizing the 60-100mm usable stroke window.
Calibrated Forming Press
Executing a precise forming operation where the bottom dead center must be dialed in on-site, using the external stop to set the exact 60-100mm extend endpoint.
Replacing the Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X100-40 with the SAIJ63X100-40
To replace the discontinued SIJ63X100-40, order the direct replacement SAIJ63X100-40, keeping the exact 63mm bore, 100mm nominal stroke, 40mm adjust window, and G3/8 port. Select the 40mm adjust window if your field tuning requires trimming the extend stroke down to a 60mm minimum. Mounting options include FA, LB, and TC brackets, all reusing the ISO 15552 interface. Because this SKU lacks the -S suffix, it has no magnet and cannot accept a sensor. For strokes of 300mm or longer, verify side-load limits to prevent guide wear. Remember the external stop sets the end position but does not lock the load; use an external rod lock or the SAIL/BSAI variant for held loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ63X100-40
- ✓ 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 SIJ63X100-40 FAQ
Yes, the SIJ63X100-40 is discontinued. The direct replacement is the SAIJ63X100-40, which matches the ISO 15552 interface, 63mm bore, 100mm nominal stroke, 40mm adjust window, and G3/8 port. The SAIJ family also features an upgraded two Y-shaped one-way piston seal for longer life.
The external stop screw provides a 40mm adjust window, allowing the 100mm extend stroke to be shortened to a 60mm minimum on-site. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ63X100-40
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ63X100-40 replacement — usually within 7-8 hours.