This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X1000S, 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 SI160X1000S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 1000mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X1000S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X1000S is a discontinued double-acting ISO 15552 profile cylinder featuring a 160 mm bore and 1000 mm stroke. Delivering 10053 N push force at 0.5 MPa, it utilizes a G3/4 port and a 40 mm piston rod. AirTAC replaced this legacy unit with the SAI160X1000S, a direct upgrade retaining the exact ISO 15552 mounting interface, bore, stroke, and port size.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. The original SI-S magnet supports CS1-B/DS1-B sensors, while the SAI family introduces SAIL lock and BSAI clamp-lock variants absent in the SI line.
| Model | Airtac SI160 Standard Cylinder SI160X1000S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X1000S |
| Bore size | Ø160 mm |
| Stroke | 1000 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 SAI160X1000S 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 SAI160X1000S 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. |
| ×1000 | 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 presses requiring 1000 mm travel and 10053 N thrust at 0.5 MPa.
Shifts substantial materials across 1-meter strokes in automated high-bay warehouse retrieval systems.
To replace the SI160X1000S, order the SAI160X1000S keeping the identical 160 mm bore, 1000 mm stroke, G3/4 port, M36x2 rod thread, and ISO 15552 mounting. Verify your thread standard (PT, G, or NPT) and mounting accessory (foot, flange, or trunnion). The -S magnet allows use of legacy CS1-B/DS1-B switches, though the SAI uses current AirTAC sensors. Sizing both ways: a 125 mm bore yields 6136 N push at 0.5 MPa, while a 200 mm bore yields 15708 N. Because this is a 1000 mm stroke, external guides are strongly recommended to prevent rod bending and excessive side loads. A plain cylinder drifts on air loss; for load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
Yes, the SI160X1000S is discontinued. The direct replacement is the SAI160X1000S. It shares the identical ISO 15552 mounting interface, 160 mm bore, 1000 mm stroke, output force, and G3/4 port, fitting existing fixtures perfectly.
The 160 mm bore provides 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, and a theoretical max of 2050 kgf at 1.0 MPa. Operating speed is 30-500 mm/s. It uses a G3/4 port and a 50 mm adjustable air cushion at both ends.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X1000S replacement — usually within 7-8 hours.