This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X160SFTC, 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 SI63X160SFTC
The AirTAC Airtac SI63 Standard Cylinder SI63X160SFTC 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 SAI63X160SFTC, 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 → SAI63X160SFTC
- 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 SI63X160SFTC
The AirTAC SI63X160SFTC is a discontinued double-acting ISO 15552 profile cylinder with a 63mm bore and 160mm stroke. Delivering 1559N push force at 0.5MPa through a G3/8 port, it is replaced by the SAI63X160SFTC. This direct successor matches the exact ISO 15552 mounting interface, bore, stroke, output force, and FTC trunnion accessory.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The SAI family also introduces SAIL lock, SAIF valve, and BSAI clamp-lock variants absent from the SI line.
Airtac SI63 Standard Cylinder SI63X160SFTC Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X160SFTC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X160SFTC |
| 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 SAI63X160SFTC 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 SAI63X160SFTC 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 SI63X160SFTC
| 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 SI63X160SFTC Is Used
Clamp Actuation
Secures heavy workpieces on machining fixtures using 1559N of thrust at 0.5MPa.
Package Diverting
Pushes medium-weight goods across transfer lines with a smooth 160mm stroke.
Pallet Stopping
Halts pallets at 79kg vertical lift capacity with reliable FTC trunnion mounting.
Replacing the Airtac SI63 Standard Cylinder SI63X160SFTC with the SAI63X160SFTC
To replace the SI63X160SFTC, order the SAI63X160SFTC. Confirm the ISO 15552 FTC trunnion mount, 63mm bore, 160mm stroke, G3/8 port (PT/G/NPT thread), and the -S magnet for CS1-B/DS1-B sensors. When sizing, a 50mm bore yields 982N push at 0.5MPa, while an 80mm bore provides 2513N. Remember, a plain cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external pilot check valve or the SAIL/BSAI lock variants. At 160mm stroke, rod bending is low, but always guide side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X160SFTC
- ✓ 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 SI63X160SFTC FAQ
Yes, the SI63X160SFTC is discontinued. The direct replacement is the SAI63X160SFTC, which matches the 63mm bore, 160mm stroke, G3/8 port, and ISO 15552 mounting interface.
It features a G3/8 port and delivers 1559N push / 1402N pull at 0.5MPa, 2182N push at 0.7MPa, and a theoretical max of 318kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63X160SFTC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X160SFTC replacement — usually within 7-8 hours.