This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X160, 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 SI63X160
The AirTAC Airtac SI63 Standard Cylinder SI63X160 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 SAI63X160, 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 → SAI63X160
- 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 SI63X160
The AirTAC SI63X160 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 SAI63X160, matching the interface, force, and mounting.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. This no-magnet SKU cannot take a sensor; legacy -S types used CS1-B/DS1-B switches.
Airtac SI63 Standard Cylinder SI63X160 Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X160 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X160 |
| 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 SAI63X160 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 SAI63X160 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 SI63X160
| 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 SI63X160 Is Used
Mid-Tonnage Pressing
Applies 1559 N of push force at 0.5 MPa for seating bearings or light stamping tasks on automated lines.
Replacing the Airtac SI63 Standard Cylinder SI63X160 with the SAI63X160
To replace the SI63X160, order the SAI63X160 keeping the 63 mm bore, 160 mm stroke, and G3/8 port. Confirm your ISO 15552 mounting (LB, FA, TC) and thread (PT/G/NPT). This SKU lacks a magnet, so it cannot hold a sensor; if sensing is needed, specify an SAI63X160S. For sizing, a 50 mm bore gives 982 N [email protected], while an 80 mm gives 2513 N. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock or pilot check valve for holding, or choose the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X160
- ✓ 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 SI63X160 FAQ
Yes, the SI63X160 is discontinued. The direct replacement is the AirTAC SAI63X160. It features the same ISO 15552 mounting interface, 63 mm bore, 160 mm stroke, output force, and G3/8 port, fitting existing fixtures perfectly.
The 63 mm bore features a G3/8 port. It delivers 1559 N push and 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, 2805 N push at 0.9 MPa, and a theoretical max of 318 kgf at 1.0 MPa.
Request a Quote for the SAI63X160
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X160 replacement — usually within 7-8 hours.