This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160BX1000, 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 SI160BX1000 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 SAI160BX1000, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160BX1000 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 1000 mm stroke. It delivers a push force of 10053 N at 0.5 MPa and features a SUS304 stainless steel piston rod. The direct replacement is the SAI160BX1000, which retains the same G3/4 port, M36x2 thread, and ISO 15552 mounting interface for seamless fixture integration.
The SAI upgrade introduces an improved piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. Note this SKU lacks a magnet and cannot accept position sensors.
| Model | Airtac SI160 Standard Cylinder SI160BX1000 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160BX1000 |
| 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 SAI160BX1000 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 SAI160BX1000 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 and metalforming presses requiring high thrust and a 1000 mm reach.
Actuates robust lifting arms for 500+ kg pallet handling, utilizing the SUS304 rod for corrosion resistance.
Positions heavy injection molds or tooling fixtures over extended 1-meter linear transitions.
To replace the SI160BX1000, order the SAI160BX1000 and verify your ISO 15552 mounting interface, G3/4 port, and M36x2 rod thread. This non-magnetic SKU cannot support switches, so if sensing is required, specify an SAI model with the -S magnet option to use current AirTAC switches. Because the 1000 mm stroke is long, use external guides to prevent rod bending and side-load damage. A standard cylinder drifts on air loss, so for load holding use an external rod lock, a pilot check valve, or the SAIL/BSAI lock variants. If downsizing, consider the 125 mm bore (6136 N push); if upsizing, the 200 mm bore offers 15708 N.
Replacement checklist
Yes, the SI160BX1000 is discontinued. The direct replacement is the SAI160BX1000. It is dimensionally interchangeable per ISO 15552, matching the 160 mm bore, 1000 mm stroke, output force, G3/4 port, and mounting accessories.
This double-acting cylinder has a G3/4 port. It delivers a push force of 10053 N and pull of 9425 N at 0.5 MPa, 14074 N at 0.7 MPa, 18095 N 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 SAI160BX1000 replacement — usually within 7-8 hours.