This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI50X1060S, 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 SI50X1060S
The AirTAC Airtac SI50 Standard Cylinder SI50X1060S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø50mm bore and 1060mm stroke, G1/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI50X1060S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke1060 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI50X1060S
- 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 SI50X1060S
The AirTAC SI50X1060S is a discontinued double-acting ISO 15552 profile cylinder with a 50mm bore and 1060mm stroke. Delivering 982N push force at 0.5MPa, it is replaced by the SAI50X1060S direct. This upgrade retains the G1/4 port, M16x1.5 rod thread, and 30mm cushions, fitting existing fixtures perfectly.
The SAI features an upgraded piston seal with two Y-shaped elements for low start-up pressure. Note this nonstandard stroke requires external guides to prevent rod bending.
Airtac SI50 Standard Cylinder SI50X1060S Technical Specifications
| Model | Airtac SI50 Standard Cylinder SI50X1060S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI50X1060S |
| Bore size | Ø50 mm |
| Stroke | 1060 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 SAI50X1060S 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 SAI50X1060S 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 SI50X1060S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×1060 | 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 SI50X1060S Is Used
Long-Stroke Material Transfer
Pushes workpieces between machining stations over a 1060mm travel distance where standard strokes fall short.
High-Bay Ejection
Actuates long ejection arms to clear packaged goods from elevated storage tiers using 982N of push force.
Vertical Lowering Arms
Drives long vertical descent mechanisms, requiring external guides to manage side-load over the extended 1060mm rod.
Replacing the Airtac SI50 Standard Cylinder SI50X1060S with the SAI50X1060S
To replace the SI50X1060S, order the SAI50X1060S ensuring the ISO 15552 mounting interface, G1/4 port, and magnet (-S) match. The -S magnet supports legacy CS1-B/DS1-B sensors, while the SAI uses current AirTAC switches. A 1060mm stroke exceeds the 1200mm max standard but requires external guides to prevent rod bending. If sizing down, a 40mm bore offers 628N push at 0.5MPa; sizing up to 63mm yields 1559N. For load holding on air loss, use an external rod lock or pilot check valve, as cushions only decelerate. The SAI family adds SAIL lock, SAIF valve, and BSAI clamp-lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI50X1060S
- ✓ 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 SI50X1060S FAQ
Yes, the SI50X1060S is discontinued. The direct replacement is the SAI50X1060S. It is dimensionally interchangeable per ISO 15552, maintaining the same 50mm bore, 1060mm stroke, 982N force, G1/4 port, and mounting interface.
The G1/4 port bore delivers a push force of 982N and pull of 825N at 0.5MPa. At 0.7MPa push is 1374N, and max theoretical force is 200kgf at 1.0MPa. Operating speed is 30-800mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI50X1060S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI50X1060S replacement — usually within 7-8 hours.