This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X60FTC, 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 SI63X60FTC
The AirTAC Airtac SI63 Standard Cylinder SI63X60FTC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 60mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63X60FTC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke60 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63X60FTC
- 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 SI63X60FTC
The AirTAC SI63X60FTC is a discontinued double-acting ISO 15552 profile cylinder with a 63mm bore and 60mm stroke, delivering 1559N push force at 0.5MPa via a G3/8 port. As an end-of-line unit, it is replaced by the SAI63X60FTC direct.
The SAI upgrade retains the exact ISO 15552 mounting interface but introduces a two Y-shaped one-way piston seal for low start-up pressure. This SKU lacks a magnet and cannot take a sensor.
Airtac SI63 Standard Cylinder SI63X60FTC Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X60FTC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X60FTC |
| Bore size | Ø63 mm |
| Stroke | 60 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 SAI63X60FTC 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 SAI63X60FTC 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 SI63X60FTC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×60 | 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 SI63X60FTC Is Used
Mid-Tonnage Clamping
Secures heavy workpieces in machining fixtures using its 1559N push force at 0.5MPa.
Product Diversion
Short 60mm stroke actuates diverter gates to route goods on assembly lines.
Pallet Stops
Acts as a robust pneumatic stop for pallets via the FTC trunnion mount.
Replacing the Airtac SI63 Standard Cylinder SI63X60FTC with the SAI63X60FTC
To replace the SI63X60FTC, order the SAI63X60FTC. Confirm the ISO 15552 FTC trunnion mount, 63mm bore, 60mm stroke and G3/8 port. Because this specific SKU has no -S magnet, it cannot accept CS1-B/DS1-B switches; you must use a non-magnetic sensing method or order a magnet-equipped variant. For sizing, a 50mm bore yields 982N push at 0.5MPa, while an 80mm bore provides 2513N. Note that a plain cylinder drifts on air loss; for load holding, use an external pilot check valve or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X60FTC
- ✓ 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 SI63X60FTC FAQ
Yes, the SI63X60FTC is discontinued. The direct replacement is the SAI63X60FTC, which shares the same ISO 15552 FTC mounting interface, 63mm bore, 60mm stroke, output force and G3/8 port.
It features a G3/8 air port. The thrust ratings are 1559N push and 1402N pull at 0.5MPa, 2182N push at 0.7MPa, 2805N push at 0.9MPa, and a maximum theoretical force of 318kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63X60FTC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X60FTC replacement — usually within 7-8 hours.