This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI50X1460S, 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 SI50 Standard Cylinder SI50X1460S
The AirTAC SI50 Standard Cylinder SI50X1460S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø50mm bore and 1460mm stroke, G1/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI50X1460S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke1460 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI50X1460S
- 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 SI50 Standard Cylinder SI50X1460S
The AirTAC SI50X1460S is a discontinued double-acting ISO 15552 profile cylinder with a 50mm bore and 1460mm stroke. Generating 982N push force at 0.5MPa, this non-standard made-to-order stroke exceeds the 1200mm maximum for the bore. AirTAC replaced it with the SAI50X1460S direct equivalent, retaining the exact G1/4 port, M16x1.5 thread, and 30mm cushions.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The SAI family adds SAIL, SAIF, and BSAI lock variants the SI lacked. Your -S magnet works with legacy CS1-B/DS1-B sensors, while SAI uses current AirTAC switches.
Airtac SI50 Standard Cylinder SI50X1460S Technical Specifications
| Model | Airtac SI50 Standard Cylinder SI50X1460S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI50X1460S |
| Bore size | Ø50 mm |
| Stroke | 1460 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| 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 1200 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI50X1460S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
The SAI50X1460S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI50 Standard Cylinder SI50X1460S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×1460 | 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 SI50 Standard Cylinder SI50X1460S Is Used
Extended Reach Transfer
Pushes parts across wide conveyor gaps using the full 1460mm stroke, yielding 982N push force at 0.5MPa for reliable mid-route positioning.
Long Descend Damping
Lowers elevating platforms over 1460mm where the 30mm adjustable air cushions absorb kinetic energy smoothly at stroke end without locking.
Replacing the Airtac SI50 Standard Cylinder SI50X1460S with the SAI50X1460S
To replace the SI50X1460S, order the SAI50X1460S. Verify the ISO 15552 mounting interface, G1/4 port, and your -S magnet requirement. Because the 1460mm stroke exceeds the 1200mm standard, it is made-to-order; at this length you must use external guides to prevent rod-bending and side-load damage. Sizing both ways: a 40mm bore yields 628N push at 0.5MPa, while a 63mm bore yields 1559N. A plain cylinder drifts on air loss—the cushion only decelerates—so for load holding use an external pilot check valve or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI50X1460S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI50 Standard Cylinder SI50X1460S FAQ
Yes, the SI50X1460S is discontinued. The direct replacement is the SAI50X1460S. It is dimensionally interchangeable per ISO 15552, keeping the same 50mm bore, 1460mm stroke, 982N force, G1/4 port, and mounting fixtures.
It features a G1/4 air port. The force ratings are: 982N push and 825N pull at 0.5MPa, 1374N push at 0.7MPa, 1767N push at 0.9MPa, and a theoretical maximum of 200kgf at 1.0MPa. The 1460mm stroke is non-standard and made-to-order.
Related AirTAC SAI Cylinders
Request a Quote for the SAI50X1460S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI50X1460S replacement — usually within 7-8 hours.