This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X240TC, 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 SI160X240TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 240mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X240TC, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X240TC is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 240 mm stroke. It delivers 10053 N push force at 0.5 MPa via a G3/4 port. As this SKU lacks the -S magnet, it cannot accept a position sensor. AirTAC replaced this legacy unit with the SAI160X240TC, a direct upgrade retaining the same ISO 15552 interface, TC trunnion mount, and 2050 kgf maximum force.
The SAI upgrade features a new piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. The SAI family also introduces SAIL and BSAI lock variants absent in the SI line.
| Model | Airtac SI160 Standard Cylinder SI160X240TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X240TC |
| Bore size | Ø160 mm |
| Stroke | 240 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 SAI160X240TC 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 SAI160X240TC 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. |
| ×240 | 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 up to 18095 N thrust at 0.7 MPa, utilizing the 240 mm stroke to actuate heavy tooling.
Secures large fabricated components during machining, relying on the TC trunnion mount to handle side-load moments efficiently.
To replace the SI160X240TC, order the SAI160X240TC to inherit the exact ISO 15552 dimensions, 240 mm stroke, G3/4 port, and TC trunnion mounting. Because this specific SKU has no -S magnet, it cannot support legacy CS1-B/DS1-B sensors; if sensing is required, specify an SAI model with the magnet option. When sizing, neighbouring bores (125 mm or 200 mm) offer different footprints, but the 160 mm bore yields 10053 N push at 0.5 MPa. Note that a standard cylinder drifts without live air; for load holding, use an external pilot check valve or select the SAIL/BSAI lock variant. Since the 240 mm stroke is under 300 mm, rod bending is minimal, but always verify guide alignment.
Replacement checklist
Yes, the AirTAC SI160X240TC is discontinued. The direct replacement is the SAI160X240TC. It matches the original ISO 15552 mounting interface, 160 mm bore, 240 mm stroke, G3/4 port, and TC trunnion accessory, dropping directly into existing fixtures.
This double-acting cylinder uses a G3/4 air port. At 0.5 MPa it provides 10053 N push and 9425 pull force. At 0.7 MPa it pushes 14074 N, and at 0.9 MPa it pushes 18095 N. The theoretical maximum force is 2050 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X240TC replacement — usually within 7-8 hours.