This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X1040SH, 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 SI160X1040SH 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 SAI160X1040SH, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X1040SH is a discontinued double-acting ISO 15552 profile cylinder with a 160mm bore and 1040mm stroke, delivering 10053 N push force at 0.5 MPa. It is superseded by the direct replacement SAI160X1040SH, which matches the exact bore, stroke, 2050 kgf max force, G3/4 port, and ISO 15552 mounting interface.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and extended life. This -SH configuration includes a piston magnet for CS1-B/DS1-B switches and a Viton H seal rated for 0-150 C.
| Model | Airtac SI160 Standard Cylinder SI160X1040SH |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X1040SH |
| 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 SAI160X1040SH 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 SAI160X1040SH 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).
Drives large heavy-duty stamping rams requiring high thrust, absorbing end-of-stroke kinetic energy via the 50mm adjustable air cushions.
Shifts heavy bulk material diverters on high-capacity lines, utilizing the 30-500 mm/s speed range for controlled actuation.
To replace the SI160X1040SH, order the SAI160X1040SH to retain the identical ISO 15552 mounting dimensions, 160mm bore, 1040mm stroke, and G3/4 port. Confirm your thread standard (PT/G/NPT) and mounting accessory (LB, FA, TC, etc.). The -S magnet works with legacy CS1-B/DS1-B sensors, while the SAI family uses current AirTAC switches. The -H Viton seal handles 0-150 C environments. If sizing down, a 125mm bore yields 6136 N push at 0.5 MPa; if sizing up, a 200mm bore yields 15708 N. Note that a 1040mm stroke demands external guiding to prevent rod bending under side loads. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant for load holding.
Replacement checklist
Yes, the SI160X1040SH is discontinued. The direct replacement is the SAI160X1040SH. It is dimensionally interchangeable per ISO 15552, retaining the same 160mm bore, 1040mm stroke, G3/4 port, and mounting interface.
The 160mm bore uses a G3/4 port. It delivers 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 maximum of 2050 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X1040SH replacement — usually within 7-8 hours.