This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X200SCB, 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 SI160X200SCB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 200mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X200SCB, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X200SCB is a discontinued double-acting ISO 15552 profile cylinder featuring a 160mm bore and 200mm stroke. It delivers 10053N push force at 0.5MPa via a G3/4 port. AirTAC replaced this legacy unit with the SAI160X200SCB, a direct upgrade retaining the exact CB clevis mount, M36x2 rod thread, and 2050kgf maximum force.
The SAI successor introduces an upgraded piston seal with two Y-shaped one-way elements for lower start-up pressure and extended life. The SAI family also adds SAIL and BSAI lock variants absent in the SI line, and your -S magnet works with legacy CS1-B/DS1-B sensors.
| Model | Airtac SI160 Standard Cylinder SI160X200SCB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X200SCB |
| Bore size | Ø160 mm |
| Stroke | 200 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 SAI160X200SCB 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 SAI160X200SCB 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. |
| ×200 | 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 press dies and forming tools where the 18095N push force at 0.9MPa is required to shape thick steel plates.
Actuates robust clamping arms on automotive welding fixtures, utilizing the CB clevis mount to handle substantial structural loads.
To replace the SI160X200SCB, order the SAI160X200SCB. It drops directly into existing fixtures via the ISO 15552 mounting interface, preserving the CB clevis mount, 160mm bore, 200mm stroke, and G3/4 port. If you need to scale, neighboring bores offer different capacities: the 125mm bore yields 6136N push at 0.5MPa, while the 200mm bore provides 15708N. Remember that a plain SAI cylinder does not hold load on air loss—the cushion only decelerates. For load holding, specify the SAIL or BSAI lock variant, or use an external pilot check valve. At 200mm stroke, rod bending is minimal, but always guide external loads to prevent side-load wear.
Replacement checklist
Yes, the SI160X200SCB is discontinued. The direct replacement is the SAI160X200SCB. It features the same ISO 15552 mounting interface, 160mm bore, 200mm stroke, output force, G3/4 port, and CB mounting accessory, fitting existing fixtures perfectly.
This double-acting cylinder operates at 30-500 mm/s. It delivers a push force of 10053N and pull force of 9425N at 0.5MPa, 14074N push at 0.7MPa, 18095N push at 0.9MPa, and a theoretical maximum of 2050kgf at 1.0MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X200SCB replacement — usually within 7-8 hours.