This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X230, 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 SI63X230
The AirTAC Airtac SI63 Standard Cylinder SI63X230 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 SAI63X230, 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 → SAI63X230
- 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 SI63X230
The AirTAC SI63X230 is a discontinued double-acting ISO 15552 profile cylinder with a 63 mm bore and 230 mm stroke. Delivering 1559 N push force at 0.5 MPa through a G3/8 port, it is replaced by the SAI63X230 direct. This upgrade retains the exact ISO 15552 mounting interface, bore, stroke, force and port size, dropping straight into existing fixtures.
The SAI upgrade features a new piston seal with two Y-shaped one-way elements for low start-up pressure and long life. Note this SKU lacks a magnet (-S) so cannot take a sensor; legacy CS1-B/DS1-B switches only fit magnetized versions. For load holding, the SAIL or BSAI lock variants are needed.
Airtac SI63 Standard Cylinder SI63X230 Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X230 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X230 |
| 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 SAI63X230 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 SAI63X230 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 SI63X230
| 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 SI63X230 Is Used
Package Diverting
Actuates diverting arms on packaging lines to route boxes, utilizing the 1559 N push force to push standard cartons reliably at speed.
Pallet Stopping
Functions as a pneumatic stop gate for incoming pallets on roller conveyors, absorbing kinetic energy via the 30 mm adjustable air cushion.
Clamp Actuation
Drives medium-duty clamping fixtures in machining cells, providing consistent 1402 N pull force to hold workpieces during milling.
Replacing the Airtac SI63 Standard Cylinder SI63X230 with the SAI63X230
To replace the discontinued SI63X230, order the SAI63X230. Confirm the ISO 15552 mounting interface, 63 mm bore, 230 mm stroke, G3/8 port (PT/G/NPT thread) and your mounting accessory (LB, FA, TC, etc.). Because this specific SKU has no -S magnet, it cannot accept a position sensor; if sensing is required, select a magnetized SAI63X230S instead. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant to hold loads. At 230 mm stroke, side-load and rod-bending risks are moderate; guide the load to prevent premature seal wear. If sizing alternatives, neighboring bores are 50 mm (982 N [email protected]) and 80 mm (2513 N [email protected]).
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X230
- ✓ 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 SI63X230 FAQ
Yes, the SI63X230 is discontinued. The direct replacement is the AirTAC SAI63X230. It is dimensionally interchangeable per ISO 15552, retaining the same 63 mm bore, 230 mm stroke, output force, G3/8 port and mounting interface, so it drops into existing fixtures.
This double-acting cylinder has a 20 mm rod, M16x1.5 thread, 30 mm cushion and operates at 30-800 mm/s. Force ratings are: push 1559 N and pull 1402 N at 0.5 MPa, push 2182 N at 0.7 MPa, push 2805 N at 0.9 MPa, and a theoretical max of 318 kgf at 1.0 MPa.
Request a Quote for the SAI63X230
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X230 replacement — usually within 7-8 hours.