This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X160FTC, 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 SI63X160FTC
The AirTAC Airtac SI63 Standard Cylinder SI63X160FTC 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 SAI63X160FTC, 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 → SAI63X160FTC
- 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 SI63X160FTC
The AirTAC SI63X160FTC is a discontinued double-acting ISO 15552 profile cylinder with a 63 mm bore, 160 mm stroke, and an FTC trunnion mount. Delivering 1559 N push force at 0.5 MPa, it is replaced by the SAI63X160FTC. This direct successor shares the exact ISO 15552 mounting dimensions, G3/8 port, and output force, fitting existing fixtures seamlessly.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. It also introduces SAIL, SAIF, and BSAI variants absent from the SI line. Note this non-magnet SKU cannot take a sensor.
Airtac SI63 Standard Cylinder SI63X160FTC Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X160FTC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X160FTC |
| 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 SAI63X160FTC 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 SAI63X160FTC 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 SI63X160FTC
| 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 SI63X160FTC Is Used
Trunnion-Mounted Diverting
Ideal for pivoting packages on a conveyor line using the FTC trunnion mount, utilizing the 1559 N push force to swing diverter arms smoothly at 0.5 MPa.
Mid-Stroke Clamping Jigs
Provides reliable 160 mm travel for machining clamps, positioning parts securely within fixtures without requiring full stroke extension.
Replacing the Airtac SI63 Standard Cylinder SI63X160FTC with the SAI63X160FTC
To replace the SI63X160FTC, order the SAI63X160FTC. Confirm the ISO 15552 FTC trunnion interface, 63 mm bore, 160 mm stroke, G3/8 port (PT/G/NPT thread options), and M16x1.5 rod thread. This non-S SKU lacks a magnet and cannot accept CS1-B/DS1-B sensors. For sizing, neighboring bores offer different forces: a 50 mm bore gives 982 N push at 0.5 MPa, while an 80 mm bore yields 2513 N. A plain cylinder drifts on air loss since cushions only decelerate; for load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. At 160 mm stroke, rod bending is low, but for any stroke over 300 mm, add guide rails to prevent side-load wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X160FTC
- ✓ 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 SI63X160FTC FAQ
Yes, the SI63X160FTC is discontinued. The direct replacement is the SAI63X160FTC. It is dimensionally interchangeable per ISO 15552, matching the 63 mm bore, 160 mm stroke, FTC trunnion mount, and G3/8 port for a seamless fixture swap.
The 63 mm bore features a G3/8 air port and M16x1.5 rod thread. 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 maximum theoretical force of 318 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63X160FTC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X160FTC replacement — usually within 7-8 hours.