This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X610SCB, 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.

The AirTAC SI160 Standard Cylinder SI160X610SCB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 610mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X610SCB, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X610SCB is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 610 mm stroke. Delivering 10053 N push force at 0.5 MPa, it features a 40 mm rod, M36x2 thread, 50 mm cushions, a G3/4 port, and a CB clevis mount. The direct replacement is the SAI160X610SCB, which shares the exact ISO 15552 mounting interface, bore, stroke, force, and port.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. The SAI family also adds SAIL, SAIF, and BSAI lock variants. This -S SKU uses CS1-B/DS1-B sensors, while the SAI takes current AirTAC switches.
| Model | Airtac SI160 Standard Cylinder SI160X610SCB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X610SCB |
| Bore size | Ø160 mm |
| Stroke | 610 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2.0 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 50 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI160X610SCB carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 kgf | |
The SAI160X610SCB produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×610 | 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).
Drives large heavy-duty stamping dies requiring 10053 N push force at 0.5 MPa with robust 50 mm end cushions to absorb high kinetic energy.
Secures oversized components for machining via the CB clevis mount, though an external pilot check valve is needed to hold position safely.
To replace the SI160X610SCB, order the SAI160X610SCB. Confirm the ISO 15552 CB clevis mount, 610 mm stroke, G3/4 port (PT/G/NPT thread options), and the -S magnet. When sizing, note the 160 mm bore yields 10053 N push and 9425 N pull at 0.5 MPa; dropping to a 125 mm bore drops force to 6136 N. Because this is a 610 mm stroke, use external guides to prevent rod bending and side-load damage. A plain cylinder drifts without live air; for load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
Yes, the SI160X610SCB is discontinued. The direct replacement is the SAI160X610SCB. It shares the identical ISO 15552 CB mounting interface, 160 mm bore, 610 mm stroke, output force, and G3/4 port, fitting existing fixtures perfectly.
This double-acting cylinder has a G3/4 port. It delivers 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, 18095 N push at 0.9 MPa, and a theoretical max of 2050 kgf at 1.0 MPa. Operating speed is 30-500 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X610SCB replacement — usually within 7-8 hours.