This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X160SN, 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 SI63X160SN
The AirTAC Airtac SI63 Standard Cylinder SI63X160SN is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 160mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63X160SN, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke160 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63X160SN
- 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 SI63X160SN
The AirTAC SI63X160SN is a discontinued double-acting ISO 15552 profile cylinder with a 63 mm bore and 160 mm stroke. It delivers 1559 N push and 1402 N pull at 0.5 MPa through a G3/8 port. The direct replacement is the SAI63X160SN, sharing the exact ISO 15552 mounting interface, M16x1.5 rod thread and 30 mm cushions.
Upgrading to the SAI variant brings a modernized piston seal with two Y-shaped one-way elements for low start-up pressure. The NBR seals (-N) suit -20 to +70 C, though a Viton H option extends this to 150 C. The -S magnet works with legacy CS1-B/DS1-B sensors, while the SAI family adds SAIL and BSAI lock variants absent in the SI line.
Airtac SI63 Standard Cylinder SI63X160SN Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X160SN |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X160SN |
| Bore size | Ø63 mm |
| Stroke | 160 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 SAI63X160SN 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 SAI63X160SN 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 SI63X160SN
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×160 | 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 SI63X160SN Is Used
Clamp Actuation
Provides reliable 1559 N clamping force at 0.5 MPa for securing mid-weight machining fixtures.
Package Diverting
Drives sorting pop-up gates and diverter arms on 160 mm strokes across packaging lines.
Pallet Stops
Acts as a robust pneumatic stop for medium payload pallets on roller conveyor systems.
Replacing the Airtac SI63 Standard Cylinder SI63X160SN with the SAI63X160SN
To replace the SI63X160SN, order the SAI63X160SN. Verify your ISO 15552 mounting hardware (LB, FA, TC, etc.), the G3/8 port, and the -S magnet for CS1-B/DS1-B switches. If you need more force, the 80 mm bore yields 2513 N push at 0.5 MPa; if less is needed, the 50 mm bore gives 982 N. Note that a standard cylinder drifts without live air—the cushion only decelerates. For load holding, use an external pilot check valve or choose the SAIL/BSAI lock variants. At 160 mm stroke, side-load is minimal, but ensure guide alignment to prevent rod bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X160SN
- ✓ 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 SI63X160SN FAQ
Yes, the SI63X160SN is discontinued. The direct replacement is the SAI63X160SN. It is dimensionally interchangeable per ISO 15552, retaining the same 63 mm bore, 160 mm stroke, output force, G3/8 port and mounting interface.
This double-acting cylinder uses a G3/8 air 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.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63X160SN
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X160SN replacement — usually within 7-8 hours.