This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X200SCA, 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 SI63X200SCA
The AirTAC SI63 Standard Cylinder SI63X200SCA 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 SAI63X200SCA, 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 → SAI63X200SCA
- 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 SI63X200SCA
The AirTAC SI63X200SCA is a discontinued double-acting ISO 15552 profile cylinder with a 63mm bore and 200mm stroke. Delivering 1559 N push force at 0.5 MPa via a G3/8 port, it is directly replaced by the SAI63X200SCA. This direct upgrade shares the exact same ISO 15552 mounting interface, CA clevis, and M16x1.5 rod thread.
The SAI successor features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. The SAI family also introduces lock and valve variants (SAIL, BSAI, SAIF) absent in the legacy line.
Airtac SI63 Standard Cylinder SI63X200SCA Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X200SCA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X200SCA |
| 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 SAI63X200SCA 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 SAI63X200SCA 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 SI63X200SCA
| 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 SI63X200SCA Is Used
Clamping Fixtures
Secures heavy workpieces during machining with 1559 N of thrust at 0.5 MPa, utilizing the CA clevis to accommodate angular alignment.
Package Diverting
Pushes medium-weight goods off a sorting line with a 200mm stroke, operating reliably at speeds between 30-800 mm/s.
Pallet Stops
Acts as a robust pneumatic stop mechanism for incoming pallets, safely absorbing kinetic energy via its 30mm adjustable air cushions.
Replacing the Airtac SI63 Standard Cylinder SI63X200SCA with the SAI63X200SCA
To replace the SI63X200SCA, order the SAI63X200SCA. Verify your existing fixture matches the ISO 15552 interface, 63mm bore, 200mm stroke, G3/8 port, and CA clevis mounting. Because this unit includes the -S magnet, it supports CS1-B/DS1-B legacy sensors (the SAI uses current AirTAC switches). If you need to scale up or down, neighboring bores are 50mm (982 N push @0.5 MPa) and 80mm (2513 N push @0.5 MPa). Note that a standard cylinder drifts without live air; the cushions only decelerate. For load holding on air loss, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X200SCA
- ✓ 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 SI63X200SCA FAQ
Yes, the AirTAC SI63X200SCA is discontinued. The direct replacement is the SAI63X200SCA. It shares the identical ISO 15552 mounting interface, 63mm bore, 200mm stroke, G3/8 port, and CA clevis, fitting directly into your existing fixtures.
The 63mm bore features a G3/8 air port and M16x1.5 rod thread. Force output is 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 theoretical maximum of 318 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63X200SCA
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X200SCA replacement — usually within 7-8 hours.