This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X50-10S, 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 SIJ63X50-10S
The AirTAC SIJ63 Double Rod Adjustable Cylinder SIJ63X50-10S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 50mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ63X50-10S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke50 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAIJ63X50-10S
- 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 SIJ63X50-10S
The AirTAC SIJ63X50-10S is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 63 mm bore and 50 mm maximum stroke. An external stop screw lets you trim the extend stroke by up to 10 mm on-site, yielding a usable 40-50 mm extension. The bore dictates a G3/8 port, a 20 mm rod, and 30 mm adjustable cushions. The direct replacement is the SAIJ63X50-10S, sharing the same interface, force, and adjustability.
The SAIJ successor retains the ISO 15552 mounting dimensions for direct reuse of FA, LB, and TC brackets, and upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure. Because the stop screw only sets the end position, it is not a load lock; use an external rod lock or SAIL/BSAI variant for held loads. This -S model includes a piston magnet for legacy CS1-B/DS1-B switches.
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X50-10S Technical Specifications
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X50-10S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X50-10S |
| Bore size | Ø63 mm |
| Stroke | 50 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 SAIJ63X50-10S 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 SAIJ63X50-10S 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 SIJ63X50-10S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×50 | 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 SIJ63X50-10S Is Used
Press Fit Positioning
Trimming the extend stroke by up to 10 mm on-site allows operators to dial in the exact 40-50 mm insertion depth for light press-fit operations without changing the cylinder body.
Transfer Diverter Stroke Tuning
Adjustable end-positioning lets maintenance teams fine-tune a diverter arm's reach by up to 10 mm to accommodate varying package widths on the fly.
Pallet Stop Calibration
The external stop screw provides a mechanical method to shorten the extend stroke precisely, ensuring pallets halt at the correct 40-50 mm gate position.
Replacing the Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X50-10S with the SAIJ63X50-10S
To replace the discontinued SIJ63X50-10S, order the SAIJ63X50-10S; it is a direct retaining the 63 mm bore, 50 mm nominal stroke, 10 mm adjust window, G3/8 port, and ISO 15552 mounting interface. Select the 10 mm adjust window if you need precise 40-50 mm extend tuning on-site. Choose FA, LB, or TC mounts based on your frame, and specify the -S suffix to retain the piston magnet for current AirTAC switches. For strokes of 300 mm or longer, verify side-load guidance to prevent rod wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ63X50-10S
- ✓ 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 SIJ63X50-10S FAQ
Yes, the SIJ63X50-10S is discontinued. The direct replacement is the SAIJ63X50-10S. It shares the same ISO 15552 interface, 63 mm bore, 50 mm stroke, 10 mm adjust window, and G3/8 port, but features an upgraded piston seal for longer life.
The external stop screw allows you to shorten the 50 mm extend stroke by up to 10 mm on-site, yielding a 40-50 mm usable stroke. The stop sets end position only and does not lock the load.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ63X50-10S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ63X50-10S replacement — usually within 7-8 hours.