This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X190SCA, 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 SI63X190SCA
The AirTAC Airtac SI63 Standard Cylinder SI63X190SCA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 190mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63X190SCA, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke190 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63X190SCA
- 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 SI63X190SCA
The AirTAC SI63X190SCA is a discontinued double-acting ISO 15552 profile cylinder with a 63 mm bore and 190 mm stroke. It delivers 1559 N push and 1402 N pull at 0.5 MPa via a G3/8 port. AirTAC replaced this legacy unit with the SAI63X190SCA, a direct sharing the exact same ISO 15552 mounting interface, CA clevis accessory, and output force.
The SAI upgrade features a refined piston seal using two Y-shaped one-way elements for low start-up pressure and extended life. The SAI family also introduces lock and valve variants absent in the SI line, such as the SAIL, SAIF, and BSAI models.
Airtac SI63 Standard Cylinder SI63X190SCA Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X190SCA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X190SCA |
| Bore size | Ø63 mm |
| Stroke | 190 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 SAI63X190SCA 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 SAI63X190SCA 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 SI63X190SCA
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×190 | 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 SI63X190SCA Is Used
Clamp and Form Operations
Ideal for mid-range press tasks requiring 1559 N of push force at 0.5 MPa to hold workpieces securely during machining or forming.
Material Diversion
Provides robust actuation for heavy-duty conveyor sorting gates, utilizing the 190 mm stroke to redirect packages efficiently.
Replacing the Airtac SI63 Standard Cylinder SI63X190SCA with the SAI63X190SCA
To replace the SI63X190SCA, order the SAI63X190SCA. It drops directly into existing fixtures via the ISO 15552 mounting interface and CA clevis, preserving the 63 mm bore, 190 mm stroke, M16x1.5 rod thread, and G3/8 port. The -S suffix indicates a piston magnet for position sensing; the original SI used legacy CS1-B/DS1-B switches, while the SAI accepts current AirTAC sensors. When sizing, note that a 50 mm bore yields 982 N push at 0.5 MPa, whereas an 80 mm bore provides 2513 N, allowing you to step up or down if your load requirements have shifted. A plain cylinder does not hold load on air loss—the cushion only decelerates—so for vertical or suspended loads, consider an external pilot check valve or the SAIL/BSAI lock variant. Because the stroke is under 300 mm, side-load rod bending is minimal, but standard guide alignment practices still apply.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X190SCA
- ✓ 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 SI63X190SCA FAQ
Yes, the SI63X190SCA is discontinued. The direct replacement is the SAI63X190SCA. It shares the identical ISO 15552 mounting interface, 63 mm bore, 190 mm stroke, output force, and G3/8 port, fitting seamlessly into your existing CA clevis setup.
This 63 mm bore cylinder features a G3/8 air port and an M16x1.5 rod thread. Theoretical forces are 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 of 318 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63X190SCA
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X190SCA replacement — usually within 7-8 hours.