This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X190, 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 SI63X190
The AirTAC Airtac SI63 Standard Cylinder SI63X190 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 SAI63X190, 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 → SAI63X190
- 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 SI63X190
The AirTAC SI63X190 is a discontinued double-acting ISO 15552 profile cylinder with a 63mm bore and 190mm stroke. It delivers 1559N push force at 0.5MPa via a G3/8 port. Because this legacy unit is end-of-life, order the current SAI63X190—a direct replacement retaining the exact interface, M16x1.5 rod thread and 30mm cushions.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. Note this specific SKU lacks the -S magnet, so it cannot accept CS1-B/DS1-B sensors. If you need load holding on air loss, explore the SAIL or BSAI lock variants, as standard cushions only decelerate.
Airtac SI63 Standard Cylinder SI63X190 Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X190 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X190 |
| 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 SAI63X190 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 SAI63X190 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 SI63X190
| 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 SI63X190 Is Used
Mid-Tonnage Pressing
Applies the 1559N @0.5MPa thrust for seating bearings or light-duty stamping operations within automated machinery.
Package Diversion
Drives 190mm stroke diverters or routing gates on production lines, moving moderate loads at 30-800mm/s.
Replacing the Airtac SI63 Standard Cylinder SI63X190 with the SAI63X190
To replace the discontinued SI63X190, order the SAI63X190. Confirm the ISO 15552 mounting interface (LB, FA, CA, TC, etc.), the 190mm stroke, and the G3/8 port. Because this is a non-magnet SKU, it cannot support position sensing; if switches are needed, specify an SAI63X190S. For loads approaching the 1559N @0.5MPa rating, the 80mm bore offers 2513N. For lighter duties, the 50mm bore provides 982N. A plain cylinder drifts on air loss—cushions only decelerate—so use an external rod lock or pilot check valve for holding, or select the SAIL lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X190
- ✓ 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 SI63X190 FAQ
Yes, the SI63X190 is discontinued. The direct replacement is the SAI63X190. It is dimensionally interchangeable per ISO 15552, matching the 63mm bore, 190mm stroke, G3/8 port, and mounting accessories.
The 63mm bore uses a G3/8 port. Forces are: 1559N push and 1402N pull at 0.5MPa, 2182N push at 0.7MPa, 2805N push at 0.9MPa, and a theoretical max of 318kgf at 1.0MPa.
Request a Quote for the SAI63X190
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X190 replacement — usually within 7-8 hours.