This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63BX95S, 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 SI63BX95S
The AirTAC Airtac SI63 Standard Cylinder SI63BX95S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 95mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63BX95S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke95 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63BX95S
- 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 SI63BX95S
The AirTAC SI63BX95S is a discontinued double-acting ISO 15552 profile cylinder with a 63mm bore and 95mm stroke. Featuring a SUS304 stainless steel rod and a built-in magnet for CS1-B/DS1-B sensors, it delivers 1559 N push force at 0.5 MPa through a G3/8 port. AirTAC replaced this legacy unit with the SAI63BX95S, a direct upgrade sharing the exact ISO 15552 mounting interface, bore, stroke, and force.
The SAI replacement introduces an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. The SAI family also adds SAIL, SAIF, and BSAI lock variants absent in the SI line, while plain cylinders still require external rod locks for load holding since cushions only decelerate.
Airtac SI63 Standard Cylinder SI63BX95S Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63BX95S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63BX95S |
| Bore size | Ø63 mm |
| Stroke | 95 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 SAI63BX95S 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 SAI63BX95S 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 SI63BX95S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×95 | 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 SI63BX95S Is Used
Stainless Rod Clamping
Ideal for packaging machinery requiring corrosion resistance, utilizing the SUS304 rod to clamp components reliably with 1559 N force.
Material Diversion
Deploys the 95mm stroke to push items across conveyor belts, benefiting from the adjustable air cushions to decelerate the load smoothly.
Replacing the Airtac SI63 Standard Cylinder SI63BX95S with the SAI63BX95S
To replace the discontinued SI63BX95S, order the SAI63BX95S keeping the 63mm bore, 95mm stroke, G3/8 port, and identical ISO 15552 mounting fixtures. Confirm if the SUS304 stainless rod and -S magnet are required for your setup. Note that a standard cylinder drifts without live air; for load holding, specify the SAIL or BSAI lock variant, or use an external pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63BX95S
- ✓ 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 SI63BX95S FAQ
Yes, the SI63BX95S is discontinued. The direct replacement is the SAI63BX95S, which shares the same ISO 15552 mounting interface, 63mm bore, 95mm stroke, force, and G3/8 port.
It features a G3/8 port and delivers 1559 N push / 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, and a theoretical max of 318 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63BX95S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63BX95S replacement — usually within 7-8 hours.