This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X336SCB, 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 SI160X336SCB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 336mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X336SCB, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X336SCB is a discontinued double-acting ISO 15552 profile cylinder with a 160mm bore and 336mm stroke. It delivers 10053N push force at 0.5MPa via a G3/4 port. The direct replacement is the SAI160X336SCB, retaining the exact CB clevis mount, M36x2 thread, and 2050kgf max force.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. The SAI family also adds SAIL and BSAI lock variants unavailable in the SI line.
| Model | Airtac SI160 Standard Cylinder SI160X336SCB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X336SCB |
| Bore size | Ø160 mm |
| Stroke | 336 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 SAI160X336SCB 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 SAI160X336SCB 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. |
| ×336 | 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 presses and forming fixtures requiring 14074N thrust at 0.7MPa, utilizing the 336mm stroke to actuate heavy tooling over extended distances.
Actuates oversized assembly jigs where the CB clevis mount absorbs pivot stress, relying on the 50mm adjustable air cushions to decelerate massive loads.
To replace the SI160X336SCB, order the SAI160X336SCB ensuring the ISO 15552 interface, 160mm bore, 336mm stroke, G3/4 port, and CB clevis mount match your fixture. Note that 336mm is a nonstandard stroke exceeding standard increments, so verify lead times. Because this is a long stroke, use external guides to prevent rod bending and side-load wear. If sizing alternatives, neighbouring bores change force significantly (125mm yields 6136N push at 0.5MPa). A plain cylinder drifts without live air; for load holding, specify the SAIL lock variant or an external pilot check valve. The -S magnet supports CS1-B/DS1-B sensors.
Replacement checklist
Yes, the AirTAC SI160X336SCB is discontinued. The direct replacement is the SAI160X336SCB. It is dimensionally interchangeable per ISO 15552, matching the 160mm bore, 336mm stroke, G3/4 port, CB clevis mount, and output force exactly.
It features a G3/4 port, M36x2 rod thread, and 50mm cushions. Force output is 10053N push and 9425N pull at 0.5MPa, 14074N push at 0.7MPa, 18095N at 0.9MPa, with a theoretical max of 2050kgf at 1.0MPa. Operating speed is 30-500mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X336SCB replacement — usually within 7-8 hours.