This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X195S, 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 SI63X195S
The AirTAC Airtac SI63 Standard Cylinder SI63X195S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 195mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63X195S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke195 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63X195S
- 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 SI63X195S
The AirTAC SI63X195S is a discontinued double-acting ISO 15552 profile cylinder with a 63 mm bore and 195 mm stroke. It delivers 1559 N push force at 0.5 MPa through a G3/8 port. AirTAC replaced this legacy unit with the SAI63X195S, a direct sharing the exact ISO 15552 mounting interface, bore, stroke, output force, and port size.
The SAI upgrade features a modernized piston seal using two Y-shaped one-way elements for low start-up pressure and extended life. The original -S magnet supports legacy CS1-B/DS1-B sensors, while the SAI family adds SAIL, SAIF, and BSAI lock variants previously unavailable.
Airtac SI63 Standard Cylinder SI63X195S Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X195S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X195S |
| Bore size | Ø63 mm |
| Stroke | 195 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 SAI63X195S 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 SAI63X195S 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 SI63X195S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×195 | 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 SI63X195S Is Used
Clamping Fixtures
Holds workpieces securely in machining jigs where 1559 N of push force at 0.5 MPa provides firm, stable positioning against cutting forces.
Package Diverting
Actuates routing gates on 63 mm bore transfer lines, using the 195 mm stroke to push cartons cleanly between parallel conveyor belts.
Pallet Stops
Functions as a heavy-duty pneumatic stop in pallet handling zones, raising a 20 mm rod barrier to halt 79 kg vertical-equivalent loads safely.
Replacing the Airtac SI63 Standard Cylinder SI63X195S with the SAI63X195S
To replace the SI63X195S, order the SAI63X195S and verify your ISO 15552 mounting interface, G3/8 port thread (PT/G/NPT), M16x1.5 rod end, and mounting accessory (LB, FA, TC, etc.). The built-in magnet (-S) means you can use legacy CS1-B/DS1-B switches or current AirTAC sensors on the SAI. If you need more force, the 80 mm bore yields 2513 N push at 0.5 MPa; if less is required, the 50 mm bore provides 982 N. A plain cylinder drifts on air loss—the cushion only decelerates—so for load holding consider an external pilot check valve or the SAIL/BSAI lock variants. At 195 mm stroke, rod bending is minimal, but always guide the load to prevent side-load wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X195S
- ✓ 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 SI63X195S FAQ
Yes, the SI63X195S is discontinued. The direct replacement is the AirTAC SAI63X195S. It shares the identical ISO 15552 mounting interface, 63 mm bore, 195 mm stroke, output force, and G3/8 port, so it fits existing fixtures perfectly without modifications.
The 63 mm bore features a G3/8 port and delivers a push force of 1559 N and pull of 1402 N at 0.5 MPa. At 0.7 MPa push is 2182 N, and at 0.9 MPa it is 2805 N. The theoretical maximum force is 318 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63X195S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X195S replacement — usually within 7-8 hours.