This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X60-20S, 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 SIJ63X60-20S
The AirTAC SIJ63 Double Rod Adjustable Cylinder SIJ63X60-20S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 60mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ63X60-20S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke60 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAIJ63X60-20S
- 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 SIJ63X60-20S
The AirTAC SIJ63X60-20S is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder. An external stop screw lets you trim the extend stroke by up to 20 mm on-site, yielding a usable 40-60 mm extension from the 60 mm nominal maximum. The 63 mm bore features a G3/8 port, M16x1.5 rod thread, and 30 mm adjustable cushions. The direct replacement is the SAIJ63X60-20S, sharing the same interface, force, and adjust window.
Upgrading to the SAIJ family brings an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The SAIJ line also adds SAIL and BSAI lock variants absent in the legacy SI series. The -S suffix denotes a built-in piston magnet for legacy CS1-B/DS1-B switches. The stop screw sets end position; it is not a load lock.
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X60-20S Technical Specifications
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X60-20S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X60-20S |
| Bore size | Ø63 mm |
| Stroke | 60 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 SAIJ63X60-20S 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 SAIJ63X60-20S 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 SIJ63X60-20S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×60 | 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 SIJ63X60-20S Is Used
Press Fit Tuning
Allows operators to fine-tune the 40-60 mm extend stroke on-site for inserting parts without re-engineering the fixture.
Variable Diverter Gate
Adjusts the extend stop position by up to 20 mm to route different package sizes on a conveyor line accurately.
Adjustable End Stop
Sets a precise external end position for lightweight pallet stops where a fixed 60 mm stroke would overshoot.
Replacing the Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X60-20S with the SAIJ63X60-20S
To replace the discontinued SIJ63X60-20S, order the exact direct replacement SAIJ63X60-20S, preserving the 63 mm bore, 60 mm stroke, 20 mm adjust window, G3/8 port, and -S magnet. Select the 20 mm adjust window if your application requires field tuning the extend stroke down to 40 mm. Mounting interfaces include FA, LB, and TC brackets. Because the 60 mm stroke is under 300 mm, side-load rod deflection is minimal. For load holding without live air, the stop screw cannot lock; use an external rod lock or the SAIL/BSAI variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ63X60-20S
- ✓ 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 SIJ63X60-20S FAQ
Yes, the SIJ63X60-20S is discontinued. The direct replacement is the SAIJ63X60-20S, sharing the same ISO 15552 interface, 63 mm bore, 60 mm stroke, 20 mm adjust window, and G3/8 port.
The external stop screw window is 20 mm, allowing the 60 mm extend stroke to be shortened to 40 mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ63X60-20S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ63X60-20S replacement — usually within 7-8 hours.