This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X200FTC, 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 SI63X200FTC
The AirTAC SI63 Standard Cylinder SI63X200FTC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 200mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63X200FTC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke200 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63X200FTC
- 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 SI63X200FTC
The AirTAC SI63X200FTC is a discontinued double-acting ISO 15552 profile cylinder with a 63 mm bore and 200 mm stroke. It delivers 1559 N push force at 0.5 MPa through a G3/8 port. The direct replacement is the SAI63X200FTC, retaining the exact ISO 15552 mounting interface, bore, stroke, force, and port size.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The SI line lacked SAIL, SAIF, and BSAI lock variants now available. Note: this no-magnet SKU cannot take a sensor, unlike CS1-B/DS1-B compatible versions.
Airtac SI63 Standard Cylinder SI63X200FTC Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X200FTC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X200FTC |
| Bore size | Ø63 mm |
| Stroke | 200 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 SAI63X200FTC 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 SAI63X200FTC 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 SI63X200FTC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×200 | 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 SI63X200FTC Is Used
Package Diverting
Drives FTC trunnion-mounted diverter arms on packaging lines, utilizing the 1559 N push force at 0.5 MPa to redirect heavy cartons reliably.
Clamp Actuation
Provides robust clamping pressure in machining fixtures.
Pallet Positioning
Indexes pallets on roller conveyors.
Replacing the Airtac SI63 Standard Cylinder SI63X200FTC with the SAI63X200FTC
To replace the SI63X200FTC, order the SAI63X200FTC. Confirm the ISO 15552 FTC trunnion mount, 63 mm bore, 200 mm stroke, G3/8 port (PT/G/NPT thread), and that no magnet is needed. Sizing both ways: a 50 mm bore yields 982 N push at 0.5 MPa, while an 80 mm bore yields 2513 N. The 63 mm bore gives 1559 N push and 1402 N pull at 0.5 MPa, with a 318 kgf max at 1.0 MPa. This plain cylinder does not hold load without live air; use an external rod lock or pilot check valve, or select the SAIL/BSAI lock variant. The SAI family also offers the SAIF self-valve option.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X200FTC
- ✓ 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 SI63X200FTC FAQ
Yes, the AirTAC SI63X200FTC is discontinued. The direct replacement is the SAI63X200FTC. It is dimensionally interchangeable per ISO 15552, matching the bore, stroke, force, G3/8 port, and FTC trunnion mounting interface, so it fits existing fixtures perfectly.
This double-acting cylinder 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.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63X200FTC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X200FTC replacement — usually within 7-8 hours.