This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X60SFA, 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 SI63X60SFA
The AirTAC Airtac SI63 Standard Cylinder SI63X60SFA 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 SAI63X60SFA, 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 → SAI63X60SFA
- 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 SI63X60SFA
The AirTAC SI63X60SFA 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, it is replaced by the SAI63X60SFA. This direct successor matches the exact FA flange mounting, M16x1.5 rod thread, and output force, fitting existing fixtures perfectly.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. It also adds lock and valve variants (SAIL, BSAI, SAIF) absent in the SI line. The built-in magnet supports legacy CS1-B/DS1-B sensors, while a Viton H seal option raises operating temperatures to 150C.
Airtac SI63 Standard Cylinder SI63X60SFA Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X60SFA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X60SFA |
| 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 SAI63X60SFA 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 SAI63X60SFA 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 SI63X60SFA
| 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 SI63X60SFA Is Used
Clamping Fixtures
Secures heavy metal components during machining operations, utilizing the 1559N push force to maintain rigid positioning against cutting loads.
Package Diversion
Actuates routing gates on high-speed material handling lines, providing reliable 60mm strokes to redirect heavy totes efficiently.
Pallet Stops
Deploys robust stopping blades at the end of gravity roller conveyors, safely halting pallets weighing up to the 79kg vertical lift threshold.
Replacing the Airtac SI63 Standard Cylinder SI63X60SFA with the SAI63X60SFA
To replace the SI63X60SFA, order the SAI63X60SFA. Verify the ISO 15552 interface, 63mm bore, 60mm stroke, G3/8 port, and FA flange mounting. The -S magnet allows use of legacy CS1-B/DS1-B switches (the SAI uses current AirTAC switches). If sizing up, the 80mm bore yields 2513N at 0.5MPa; if sizing down, the 50mm bore yields 982N. Note that a standard cylinder drifts without live air, as cushions only decelerate. For load holding, use an external pilot check valve or the SAIL/BSAI lock variants. Rod material options include carbon steel, SUS420J2, or SUS304.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X60SFA
- ✓ 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 SI63X60SFA FAQ
Yes, the SI63X60SFA is discontinued. The direct replacement is the SAI63X60SFA. It is dimensionally interchangeable per ISO 15552, retaining the same 63mm bore, 60mm stroke, G3/8 port, and FA flange mounting.
The 63mm bore features a G3/8 port. It delivers 1559N push and 1402N pull at 0.5MPa, 2182N push at 0.7MPa, 2805N push at 0.9MPa, and a theoretical maximum force of 318kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63X60SFA
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X60SFA replacement — usually within 7-8 hours.