This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X35-10, 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 SIJ63X35-10
The AirTAC SIJ63 Double Rod Adjustable Cylinder SIJ63X35-10 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 35mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ63X35-10, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke35 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAIJ63X35-10
- 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 SIJ63X35-10
The AirTAC SIJ63X35-10 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder. The external stop screw lets you trim the extend stroke by up to 10 mm on-site, giving a usable 25-35 mm window. It features a 20 mm rod, M16x1.5 thread, and a G3/8 port.
The direct replacement is the SAIJ63X35-10, retaining the same interface, force, and adjust window. The SAIJ upgrade uses a two Y-shaped one-way piston seal for low start-up pressure and long life. The stop sets end position but is not a lock; for held loads use SAIL or BSAI.
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X35-10 Technical Specifications
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X35-10 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X35-10 |
| Bore size | Ø63 mm |
| Stroke | 35 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 SAIJ63X35-10 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 SAIJ63X35-10 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 SIJ63X35-10
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×35 | 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 SIJ63X35-10 Is Used
Short-Stroke Clamping
Provides 25-35 mm clamping reach on machining fixtures, tuning the exact contact point without shimming.
Diverter Gate Positioning
Sets a precise 25-35 mm extend distance on a sorting line to deflect varying package sizes accurately.
Compact Ejector Stroke
Trims the ejection stroke down to 25 mm in tight assembly cells to avoid over-travel and damaging parts.
Replacing the Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X35-10 with the SAIJ63X35-10
To replace the discontinued SIJ63X35-10, order the direct replacement SAIJ63X35-10. The 10 mm adjust window provides a 25-35 mm extend range. Reuse FA, LB, or TC ISO 15552 mounts. This SKU lacks the -S magnet, so it cannot take a sensor. For stroke lengths under 300 mm, side-load risks are minimal. The stop screw sets end position only; it is not a load lock.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ63X35-10
- ✓ 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 SIJ63X35-10 FAQ
Yes, the SIJ63X35-10 is discontinued. The direct replacement is the SAIJ63X35-10. It shares the same ISO 15552 interface, 63 mm bore, 35 mm stroke, 10 mm adjust window, G3/8 port, and mounting options. The SAIJ features an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life.
The external stop screw provides a 10 mm adjust window, shortening the 35 mm nominal extend stroke down to 25 mm on-site. The stop sets end position only; it does not lock the load.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ63X35-10
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ63X35-10 replacement — usually within 7-8 hours.