This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI50X60SCB, 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 SI50X60SCB
The AirTAC SI50 Standard Cylinder SI50X60SCB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø50mm bore and 60mm stroke, G1/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI50X60SCB, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke60 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI50X60SCB
- 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 SI50X60SCB
The AirTAC SI50X60SCB is a discontinued double-acting ISO 15552 profile cylinder with a 50mm bore and 60mm stroke. Delivering 982 N push force at 0.5 MPa via a G1/4 port, it is directly replaced by the SAI50X60SCB. This direct upgrade shares the exact ISO 15552 mounting interface, CB clevis, and output force, fitting existing fixtures perfectly.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. It also adds SAIL, SAIF, and BSAI variants absent from the SI line.
Airtac SI50 Standard Cylinder SI50X60SCB Technical Specifications
| Model | Airtac SI50 Standard Cylinder SI50X60SCB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI50X60SCB |
| Bore size | Ø50 mm |
| Stroke | 60 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 SAI50X60SCB 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 SAI50X60SCB 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 SI50X60SCB
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×60 | 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 SI50X60SCB Is Used
Material Diversion
Actuates sorting arms on conveyor lines to push packages, utilizing the 982 N push force to redirect items reliably at high speeds.
Clamp Actuation
Provides repeatable clamping pressure for machining fixtures, with the CB clevis allowing pivoting movement during the 60mm stroke.
Pallet Positioning
Indexes pallets on packaging lines by pushing them into correct alignment, handling loads safely within the 50 kg vertical lift limit.
Replacing the Airtac SI50 Standard Cylinder SI50X60SCB with the SAI50X60SCB
To replace the SI50X60SCB, order the SAI50X60SCB. Verify the ISO 15552 interface, 50mm bore, 60mm stroke, G1/4 port, M16x1.5 rod thread, and CB clevis mounting. The -S magnet accommodates CS1-B/DS1-B switches (the SAI uses current AirTAC switches). For sizing, the 50mm bore yields 982 N push at 0.5 MPa; neighboring bores are 40mm (628 N) and 63mm (1559 N). Note that standard cylinders drift on air loss—the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI50X60SCB
- ✓ 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 SI50X60SCB FAQ
Yes, the SI50X60SCB is discontinued. The direct replacement is the SAI50X60SCB, which shares the identical ISO 15552 mounting interface, 50mm bore, 60mm stroke, G1/4 port, and CB clevis.
The 50mm bore features a G1/4 air port. Force output is 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, and a theoretical maximum of 200 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI50X60SCB
Send us the quantity and destination. We confirm price, stock and lead time on the SAI50X60SCB replacement — usually within 7-8 hours.