This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X1000H, 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 SI160X1000H 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 SAI160X1000H, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X1000H is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 1000 mm stroke. It delivers a thrust of 10053 N at 0.5 MPa and features a G3/4 port. The direct replacement is the SAI160X1000H, which matches the exact ISO 15552 mounting interface, bore, stroke, force, and port size.
This SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. The -H suffix indicates a Viton H seal, raising the operating temperature range from -20 to +70 C up to 0-150 C. Note this SKU lacks a magnet, so it cannot accept a CS1-B/DS1-B sensor.
| Model | Airtac SI160 Standard Cylinder SI160X1000H |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X1000H |
| 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 SAI160X1000H 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 SAI160X1000H 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 platens in metal forming, utilizing the 14074 N push at 0.7 MPa to shape thick plate stock reliably.
Actuates 1000 mm vertical lift gates for heavy material handling, guided externally to prevent rod bending.
Ejects molded parts from hot environments up to 150 C, leveraging the Viton H seals to resist thermal degradation.
To replace the discontinued SI160X1000H, order the SAI160X1000H direct. Confirm the ISO 15552 mounting interface, the 160 mm bore, the 1000 mm stroke, the G3/4 port, and your mounting accessory. Because this is a -H Viton configuration, verify the 0-150 C temperature requirement is met. This non-magnetic SKU cannot host a sensor; if position detection is needed, select an SAI variant with an S suffix for current AirTAC switches. At 1000 mm, this long stroke risks rod bending under side loads, so use external guides to prevent jamming. Sizing both ways: a 200 mm bore offers more force, while a 125 mm bore provides 6136 N push at 0.5 MPa. For load holding on air loss, note the cushion only decelerates; use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
Yes, the SI160X1000H is discontinued. The direct replacement is the SAI160X1000H. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 1000 mm stroke, 10053 N force, and G3/4 port to fit existing fixtures.
The G3/4 port supplies a double-acting thrust of 10053 N push and 9425 N pull at 0.5 MPa. At 0.7 MPa push is 14074 N, and at 0.9 MPa it is 18095 N. The theoretical maximum force is 2050 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X1000H replacement — usually within 7-8 hours.