This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X910S, 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 SI63X910S
The AirTAC Airtac SI63 Standard Cylinder SI63X910S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 910mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63X910S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke910 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63X910S
- 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 SI63X910S
The AirTAC SI63X910S is a discontinued double-acting ISO 15552 profile cylinder with a 63 mm bore and 910 mm stroke. It delivers 1559 N push and 1402 N pull at 0.5 MPa through a G3/8 port. AirTAC replaced this legacy unit with the SAI63X910S, a direct sharing the same interface, force, and mounting.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The family adds SAIL, SAIF, and BSAI lock variants the SI lacked. Your -S magnet works with legacy CS1-B/DS1-B sensors.
Airtac SI63 Standard Cylinder SI63X910S Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X910S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X910S |
| Bore size | Ø63 mm |
| Stroke | 910 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 SAI63X910S 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 SAI63X910S 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 SI63X910S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×910 | 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 SI63X910S Is Used
Long-Stroke Diversion
Pushes packages across a 900 mm transfer belt using the 1559 N force, requiring external guides to prevent rod bending over the long 910 mm travel.
Press Ejection
Ejects formed parts from a press bed, using the adjustable 30 mm air cushions to decelerate the load smoothly at stroke end.
Replacing the Airtac SI63 Standard Cylinder SI63X910S with the SAI63X910S
To replace this SI63X910S, order the SAI63X910S. Confirm the ISO 15552 mounting interface, 910 mm stroke, G3/8 port (PT/G/NPT), and your -S magnet. Sizing both ways: the 63 mm bore gives 1559 N push at 0.5 MPa, sitting between the 50 mm (982 N) and 80 mm (2513 N) bores. Because the 910 mm stroke is long, use external guides to prevent rod bending and side-load wear. A plain cylinder drifts on air loss; for load holding, use an external pilot check valve, rod lock, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X910S
- ✓ 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 SI63X910S FAQ
Yes, the SI63X910S is discontinued. The direct replacement is the AirTAC SAI63X910S. It is dimensionally interchangeable per ISO 15552, matching the 63 mm bore, 910 mm stroke, G3/8 port, and mounting fixtures.
The 63 mm bore uses a G3/8 port. It generates 1559 N push and 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, and a theoretical maximum of 318 kgf at 1.0 MPa. The piston rod is 20 mm with an M16x1.5 thread.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63X910S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X910S replacement — usually within 7-8 hours.