This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI50X532S, 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 SI50X532S
The AirTAC Airtac SI50 Standard Cylinder SI50X532S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø50mm bore and 532mm stroke, G1/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI50X532S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke532 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI50X532S
- 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 SI50X532S
The AirTAC SI50X532S is a discontinued double-acting ISO 15552 profile cylinder with a 50mm bore and 532mm stroke. Delivering 982 N push force at 0.5 MPa, it is replaced by the SAI50X532S. This direct upgrade shares the same G1/4 port, M16x1.5 rod thread, and 30mm cushions.
The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure. The SI50X532S includes a magnet for CS1-B/DS1-B sensors; SAIL or BSAI lock variants are available for load holding.
Airtac SI50 Standard Cylinder SI50X532S Technical Specifications
| Model | Airtac SI50 Standard Cylinder SI50X532S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI50X532S |
| Bore size | Ø50 mm |
| Stroke | 532 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 SAI50X532S 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 SAI50X532S 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 SI50X532S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×532 | 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 SI50X532S Is Used
Long-Stroke Diversion
Pushes packages across transfer lines with a 532mm reach, utilizing the 982 N thrust to overcome guide friction.
Extended Press Ejection
Clears molded parts from deep tooling cavities where a 532mm extension is required to reach the safe extraction zone.
Replacing the Airtac SI50 Standard Cylinder SI50X532S with the SAI50X532S
To replace this discontinued SI50X532S, order the SAI50X532S. Verify the ISO 15552 mounting interface, G1/4 port, and 532mm stroke. Because 532mm is a nonstandard stroke exceeding the 500mm typical limit for some setups, ensure your mounting handles the side-load and rod-bending risks by using external guides. If you need more force than the 982 N at 0.5 MPa, step up to a 63mm bore. For load holding on air loss, note that cushions only decelerate; use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI50X532S
- ✓ 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 SI50X532S FAQ
Yes, the SI50X532S is discontinued. The direct replacement is the SAI50X532S. It is dimensionally interchangeable per ISO 15552, retaining the same 50mm bore, 532mm stroke, G1/4 port, and mounting interface.
This 50mm bore cylinder has a G1/4 air port. It generates 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, and 1767 N at 0.9 MPa. The theoretical maximum force is 200 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI50X532S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI50X532S replacement — usually within 7-8 hours.