This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X192STC, 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 SI63X192STC
The AirTAC Airtac SI63 Standard Cylinder SI63X192STC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 192mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63X192STC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke192 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63X192STC
- 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 SI63X192STC
The AirTAC SI63X192STC is a discontinued double-acting ISO 15552 profile cylinder with a 63 mm bore, 192 mm non-standard stroke, and TC trunnion mounting. It delivers 1559 N push and 1402 N pull at 0.5 MPa through a G3/8 port. AirTAC replaced this legacy unit with the SAI63X192STC, a direct replacement sharing the exact ISO 15552 mounting interface, bore, stroke, force, and port size.
The SAI upgrade features a modernized piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. The original SI-S magnet supports legacy CS1-B/DS1-B sensors, while the SAI family introduces lock variants like the SAIL and BSAI absent from the SI line.
Airtac SI63 Standard Cylinder SI63X192STC Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X192STC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X192STC |
| Bore size | Ø63 mm |
| Stroke | 192 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 SAI63X192STC 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 SAI63X192STC 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 SI63X192STC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×192 | 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 SI63X192STC Is Used
Clamping Fixtures
Applies 1559 N of clamping force at 0.5 MPa to hold medium-weight workpieces securely during machining operations.
Package Diversion
Uses the 192 mm stroke to push standard totes or cartons cleanly from a main conveyor line onto a sorting branch.
Replacing the Airtac SI63 Standard Cylinder SI63X192STC with the SAI63X192STC
To replace the SI63X192STC, order the SAI63X192STC. Confirm the ISO 15552 TC trunnion mounting, G3/8 port, M16x1.5 rod thread, and the -S magnet for current AirTAC switches. Because 192 mm is a non-standard stroke, verify fixture clearance. Sizing both ways: a 50 mm bore yields 982 N push, while an 80 mm bore yields 2513 N at 0.5 MPa. For side loads over this 192 mm stroke, use a guide to prevent rod bending. A plain cylinder drifts on air loss; the cushion only decelerates. For load holding, use an external pilot check valve or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X192STC
- ✓ 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 SI63X192STC FAQ
Yes, the SI63X192STC is discontinued. The direct replacement is the SAI63X192STC. It shares the identical ISO 15552 mounting interface, 63 mm bore, 192 mm stroke, force, and G3/8 port, fitting existing fixtures perfectly.
This 63 mm bore cylinder features a G3/8 air port, a 20 mm rod, and M16x1.5 thread. It delivers 1559 N push and 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, 2805 N at 0.9 MPa, and a theoretical maximum of 318 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63X192STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X192STC replacement — usually within 7-8 hours.