This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X1040SFA, 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 SI160X1040SFA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 1040mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X1040SFA, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X1040SFA is a discontinued double-acting ISO 15552 profile cylinder with a 1040 mm stroke. It delivers a thrust of 10053 N at 0.5 MPa and features a G3/4 port, M36x2 rod thread, and 50 mm adjustable cushions. AirTAC replaced this legacy unit with the SAI160X1040SFA, a direct sharing the exact bore, stroke, force, port, and FA mounting interface.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. The SAI family adds SAIL and BSAI lock variants the SI lacked. Your -S magnet works with legacy CS1-B/DS1-B sensors, while the SAI uses current AirTAC switches.
| Model | Airtac SI160 Standard Cylinder SI160X1040SFA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X1040SFA |
| Bore size | Ø160 mm |
| Stroke | 1040 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 SAI160X1040SFA 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 SAI160X1040SFA 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. |
| ×1040 | 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 14074 N push at 0.7 MPa for heavy-duty stamping and metal forming tasks requiring sustained force.
Manages the 1040 mm stroke for lowering large fabricated components or materials into treatment baths.
Shifts loaded pallets or heavy industrial containers along transfer lines using the 9425 N pull force.
To replace the SI160X1040SFA, order the SAI160X1040SFA. It drops into existing fixtures via the same ISO 15552 interface and FA flange. Confirm your port thread (PT/G/NPT) and magnet requirement. At 0.5 MPa it pushes 10053 N and pulls 9425 N; if undersizing, a 125 mm bore yields 6136 N. Because this is a 1040 mm stroke, use an external guide to prevent rod bending and side-load wear. A plain cylinder drifts without live air; for load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
Yes, the SI160X1040SFA is discontinued. The direct replacement is the SAI160X1040SFA. It shares the identical ISO 15552 mounting interface, 160 mm bore, 1040 mm stroke, output force, G3/4 port, and FA flange, fitting existing fixtures perfectly.
It operates at 0.15-1.0 MPa (proof 1.5 MPa) with a speed of 30-500 mm/s. Force output is 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, 18095 N push at 0.9 MPa, and a theoretical max of 2050 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X1040SFA replacement — usually within 7-8 hours.