This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X200N, 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 SI63X200N
The AirTAC Airtac SI63 Standard Cylinder SI63X200N is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 200mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63X200N, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke200 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63X200N
- 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 SI63X200N
The AirTAC SI63X200N is a discontinued double-acting ISO 15552 profile cylinder with a 63 mm bore and 200 mm stroke. Delivering 1559 N push force at 0.5 MPa via a G3/8 port, it is replaced by the SAI63X200N. This direct upgrade shares the exact ISO 15552 mounting interface, bore, stroke, force, port and accessories. The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life.
This NBR-sealed (-N) unit operates from -20 to +70 C, with a Viton H option extending heat resistance to 150 C. Because this specific SKU lacks the -S magnet, it cannot accept CS1-B or DS1-B sensors. Note that a standard cylinder drifts on air loss; the cushion only decelerates near stroke end. For rigid load holding, consider the SAIL or BSAI lock variants, or an external pilot check valve.
Airtac SI63 Standard Cylinder SI63X200N Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X200N |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X200N |
| Bore size | Ø63 mm |
| Stroke | 200 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 SAI63X200N 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 SAI63X200N 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 SI63X200N
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×200 | 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 SI63X200N Is Used
Mid-Tonnage Clamping
Ideal for securing heavy workpieces during machining, utilizing the 1559 N push force at 0.5 MPa to hold parts firmly against fixture stops.
Package Diversion
Provides robust actuation for sorting heavier goods on packaging lines, using the 200 mm stroke to push cartons cleanly between parallel belts.
Pallet Stopping
Acts as a high-strength stop gate for loaded pallets, where the 63 mm bore and NBR seals withstand continuous industrial impact and wear.
Replacing the Airtac SI63 Standard Cylinder SI63X200N with the SAI63X200N
To replace the discontinued SI63X200N, order the SAI63X200N. Verify your ISO 15552 mounting accessory (LB, FA, TC, etc.), the G3/8 port, and the 200 mm stroke. Because this SKU lacks a magnet, it cannot support position sensing; if sensing is needed, switch to an SAI63X200NS. Size both ways: a 50 mm bore yields 982 N push at 0.5 MPa, while an 80 mm bore yields 2513 N. For loads requiring holding without live air, use the SAIL air-released lock, the BSAI clamp-lock, or an external rod lock. With a 200 mm stroke, standard guide rails should be used to prevent rod bending under side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X200N
- ✓ 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 SI63X200N FAQ
Yes, the SI63X200N is discontinued. The direct replacement is the SAI63X200N. It shares the exact ISO 15552 mounting interface, 63 mm bore, 200 mm stroke, output force, G3/8 port, and mounting accessories, fitting directly into existing fixtures.
This 63 mm bore cylinder features a G3/8 air port and 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 force of 318 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63X200N
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X200N replacement — usually within 7-8 hours.