This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63AX230, 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 SI63 Standard Cylinder SI63AX230
The AirTAC Airtac SI63 Standard Cylinder SI63AX230 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 230mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63AX230, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke230 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63AX230
- 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 SI63 Standard Cylinder SI63AX230
The AirTAC SI63AX230 is a discontinued double-acting ISO 15552 profile cylinder with a 63mm bore and 230mm stroke. It delivers 1559N push force at 0.5MPa via a G3/8 port. The direct replacement is the SAI63AX230, matching the interface, force, and mounting exactly.
This SKU features a SUS420J2 stainless piston rod but lacks a magnet, so it cannot accept a sensor. The SAI upgrade uses two Y-shaped piston seals for low start-up pressure.
Airtac SI63 Standard Cylinder SI63AX230 Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63AX230 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63AX230 |
| Bore size | Ø63 mm |
| Stroke | 230 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 SAI63AX230 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 SAI63AX230 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI63 Standard Cylinder SI63AX230
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×230 | 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 SI63 Standard Cylinder SI63AX230 Is Used
Mid-Tonnage Pressing
Applies up to 2805N at 0.9MPa for seating bearings or light stamping tasks in automated cells.
Product Diversion
Handles 230mm stroke to push mid-weight cartons between parallel conveyor lines reliably.
Pallet Lift Gates
Actuates safety gates or stops, with the SUS420J2 rod offering corrosion resistance in humid logistics hubs.
Replacing the Airtac SI63 Standard Cylinder SI63AX230 with the SAI63AX230
To replace the SI63AX230, order the SAI63AX230, ensuring the ISO 15552 mounting interface, 63mm bore, 230mm stroke, and G3/8 port match your fixture. Select the -A stainless rod and confirm no magnet is needed, as this SKU cannot take a switch. Neighbouring bores are 50mm (982N push at 0.5MPa) and 80mm (2513N push). The 230mm stroke requires attention to side-load and rod-bending; use a guide to prevent premature wear. For load holding on air loss, note the cushion only decelerates; add an external rod lock, pilot check valve, or use the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63AX230
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI63 Standard Cylinder SI63AX230 FAQ
Yes, the SI63AX230 is discontinued. The direct replacement is the SAI63AX230, matching the ISO 15552 mounting interface, 63mm bore, 230mm stroke, force, and G3/8 port.
It has a G3/8 port. Force outputs are: 1559N push and 1402N pull at 0.5MPa, 2182N push at 0.7MPa, 2805N push at 0.9MPa, and a theoretical max of 318kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63AX230
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63AX230 replacement — usually within 7-8 hours.