This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X700H, 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 SI160X700H is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 700mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X700H, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X700H is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 700 mm stroke. Delivering 10053 N push force at 0.5 MPa, it features a G3/4 port, M36x2 rod thread, and a high-temperature Viton H seal rated for 0 to 150 C. Because this SKU lacks a magnet, it cannot accept a position sensor.
The direct replacement is the SAI160X700H, sharing the same ISO 15552 mounting interface, bore, stroke, and force. The SAI upgrades the piston seal to two Y-shaped one-way elements for low start-up pressure.
| Model | Airtac SI160 Standard Cylinder SI160X700H |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X700H |
| Bore size | Ø160 mm |
| Stroke | 700 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 SAI160X700H 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 SAI160X700H 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. |
| ×700 | 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 metalforming dies requiring 10053 N push force at 0.5 MPa, absorbing end-of-stroke impact via the 50 mm adjustable air cushion.
Ejects cast or heated parts in environments up to 150 C using the Viton H seal, where standard NBR cylinders would degrade and fail.
Raises heavy 512 kg loads through 700 mm of travel, necessitating external linear guides to prevent excessive rod bending and side loading.
To replace the SI160X700H, order the SAI160X700H and confirm the ISO 15552 mounting accessory (LB, FA, CA, TC), G3/4 port, and 700 mm stroke. This high-temp Viton H variant suits up to 150 C. If sizing up or down, note the 125 mm bore offers 6136 N push at 0.5 MPa, while the 200 mm bore provides 15708 N. A plain cylinder drifts on air loss; for load holding use an external pilot check valve or the SAIL/BSAI lock variant. At 700 mm stroke, use external guides to prevent rod bending and side-load damage. No magnet means no sensor.
Replacement checklist
Yes, the SI160X700H is discontinued. The direct replacement is the SAI160X700H. It shares the same ISO 15552 mounting interface, 160 mm bore, 700 mm stroke, 10053 N force, G3/4 port, and high-temp Viton H seal, fitting existing fixtures perfectly.
The 160 mm bore cylinder has a G3/4 port. It generates 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. Operating speed is 30-500 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X700H replacement — usually within 7-8 hours.