This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X600, 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 SI160X600 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 600mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X600, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X600 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 600 mm stroke. Delivering 10053 N push force at 0.5 MPa, it features a 40 mm carbon steel rod, M36x2 thread, and a G3/4 port. AirTAC replaced this legacy unit with the SAI160X600, a direct sharing identical mounting, force, and porting.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and longevity. For load retention, note that a standard cylinder drifts without live air; choose the SAIL or BSAI lock variants if needed. This no-magnet SKU cannot hold a sensor.
| Model | Airtac SI160 Standard Cylinder SI160X600 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X600 |
| Bore size | Ø160 mm |
| Stroke | 600 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 SAI160X600 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 SAI160X600 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. |
| ×600 | 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).
Provides the robust 10053 N output needed to eject formed metal components from large hydraulic presses safely.
Moves loaded pallets along 600 mm transfer lines where substantial push force and long travel are required.
Secures oversized structural steel beams during machining operations using high-force double-acting actuation.
To replace the SI160X600, order the SAI160X600 keeping the identical ISO 15552 interface, 600 mm stroke, and G3/4 port. Confirm your mounting accessory (LB, FA, or TC) and thread type (PT, G, or NPT). This SKU lacks a magnet, so it cannot accept CS1-B/DS1-B sensors; order an SAI with the S suffix if position sensing is required. For sizing, the 125 mm bore offers 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. Because the stroke is 600 mm, use external guides to prevent rod bending and side-load damage. Remember that air cushions only decelerate; they do not hold loads. For dead-load holding under air loss, specify a SAIL or BSAI lock variant, or fit an external pilot check valve.
Replacement checklist
Yes, the SI160X600 is discontinued. The direct replacement is the SAI160X600, which shares the same ISO 15552 mounting interface, 160 mm bore, 600 mm stroke, output force, and G3/4 port.
It features a G3/4 port. The thrust ratings are 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 maximum theoretical force of 2050 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X600 replacement — usually within 7-8 hours.