This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X1230SH, 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 SI63X1230SH
The AirTAC Airtac SI63 Standard Cylinder SI63X1230SH is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 1230mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63X1230SH, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke1230 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63X1230SH
- 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 SI63X1230SH
The AirTAC SI63X1230SH is a discontinued double-acting ISO 15552 profile cylinder with a 1230 mm stroke, yielding 1559 N push force at 0.5 MPa. It features a G3/8 port, a 20 mm rod, and a high-temp Viton H seal (0-150 C). The direct replacement is the SAI63X1230SH, sharing the exact interface, force, and port.
The SAI upgrade uses two Y-shaped one-way piston seals for low start-up pressure. The SAI family adds SAIL and BSAI lock variants the SI lacked. This -S SKU supports CS1-B/DS1-B sensors.
Airtac SI63 Standard Cylinder SI63X1230SH Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X1230SH |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X1230SH |
| Bore size | Ø63 mm |
| Stroke | 1230 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 SAI63X1230SH 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 SAI63X1230SH 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 SI63X1230SH
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×1230 | 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 SI63X1230SH Is Used
Long-Stroke Transfer
Pushes heavy pallets along a 1230 mm conveyor path using 1559 N of thrust at 0.5 MPa.
High-Temp Actuation
Actuates gating near heat zones using the Viton H seal rated for 0 to 150 C environments.
Replacing the Airtac SI63 Standard Cylinder SI63X1230SH with the SAI63X1230SH
To replace this SI with the SAI63X1230SH, verify the ISO 15552 mounting interface, G3/8 port, and M16x1.5 thread. The 1230 mm stroke is nonstandard (exceeding the 1500 mm max but requiring custom quoting) and demands external guides to prevent rod bending. Size both ways: a 50 mm bore gives 982 N, while an 80 mm bore gives 2513 N at 0.5 MPa. Air cushions only decelerate; use a pilot check valve or SAIL lock to hold loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X1230SH
- ✓ 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 SI63X1230SH FAQ
Yes, the SI63X1230SH is discontinued. The direct replacement is the SAI63X1230SH, matching the ISO 15552 mounting interface, 63 mm bore, 1230 mm stroke, force, and G3/8 port.
The 63 mm bore provides 1559 N push and 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, 2805 N at 0.9 MPa, and a 318 kgf max at 1.0 MPa. Operating speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63X1230SH
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X1230SH replacement — usually within 7-8 hours.