This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X100H, 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 SI160X100H is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 100mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X100H, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X100H is a discontinued double-acting ISO 15552 profile cylinder featuring a 160 mm bore and 100 mm stroke. Built with an extruded aluminum barrel, it delivers a robust 10053 N push force at 0.5 MPa. The direct replacement is the SAI160X100H, matching the bore, stroke, output force, G3/4 port, and ISO 15552 mounting interface. This SKU uses a Viton H seal for high-temperature environments up to 150 C.
Because this specific configuration lacks a magnet (-S), it cannot accept a position sensor. The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure. Note that a standard cylinder drifts without live air; for load holding, consider the SAIL or BSAI lock variants.
| Model | Airtac SI160 Standard Cylinder SI160X100H |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X100H |
| Bore size | Ø160 mm |
| Stroke | 100 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 SAI160X100H 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 SAI160X100H 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. |
| ×100 | 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).
Applies the 10053 N push force at 0.5 MPa to secure large metal castings during machining operations.
Utilizes the Viton H seal to operate reliably in 150 C environments near industrial ovens and thermforming equipment.
To replace the discontinued SI160X100H, order the SAI160X100H. Verify your ISO 15552 mounting interface, G3/4 port, and M36x2 rod thread. This non-magnetic SKU cannot support legacy CS1-B/DS1-B sensors, so confirm if a current AirTAC switch on a different variant is needed. For sizing alternatives, the neighboring 125 mm bore yields 6136 N push at 0.5 MPa, while the 200 mm bore provides 15708 N. At 0.7 MPa, this 160 mm bore generates 14074 N. A plain double-acting cylinder does not hold loads without live air; the 50 mm adjustable cushions only decelerate. For secure holding, specify an external pilot check valve or the SAIL/BSAI lock variant. The Viton H seal accommodates 0-150 C environments.
Replacement checklist
Yes, the SI160X100H is discontinued. The direct replacement is the SAI160X100H. It features the same ISO 15552 mounting interface, 160 mm bore, 100 mm stroke, output force, and G3/4 port, fitting directly into existing fixtures.
The G3/4 port supplies a 40 mm rod. Force output is 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, and 18095 N push at 0.9 MPa. The theoretical maximum is 2050 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X100H replacement — usually within 7-8 hours.