This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X800H, 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 SI160X800H is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 800mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X800H, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X800H is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 800 mm stroke. It delivers a push force of 10053 N at 0.5 MPa and features a G3/4 port, M36x2 rod thread, and 50 mm adjustable air cushions. The direct replacement is the SAI160X800H, matching the bore, stroke, force, port, and ISO 15552 mounting interface for seamless fixture integration.
This -H variant uses Viton seals for 0-150 C high-temperature environments. Since this SKU lacks a magnet (-S), it cannot accept position sensors. The SAI upgrade features two Y-shaped piston seals for low start-up pressure.
| Model | Airtac SI160 Standard Cylinder SI160X800H |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X800H |
| Bore size | Ø160 mm |
| Stroke | 800 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 SAI160X800H 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 SAI160X800H 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. |
| ×800 | 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 stamping or forming presses requiring 10053 N push force at 0.5 MPa, utilizing the 800 mm stroke for deep-draw operations.
Moves heavy cast or heated components in industrial ovens up to 150 C, leveraging the Viton -H seal and robust 40 mm piston rod.
Shifts substantial pallets or workpieces along assembly lines, where the 160 mm bore provides the necessary force to overcome inertia over the long 800 mm travel.
To replace the SI160X800H, order the SAI160X800H, confirming the ISO 15552 mounting interface, 160 mm bore, 800 mm stroke, G3/4 port, and Viton -H seal. This SKU has no magnet, so it cannot support switches; if sensing is needed, select an SAI model with the S suffix for current AirTAC switches. For sizing, a 125 mm bore offers 6136 N push at 0.5 MPa, while a 200 mm bore provides 15708 N. At 800 mm, the side-load and rod-bending risk is high; use external guides to prevent premature wear. A plain cylinder drifts on air loss, as cushions only decelerate. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
Yes, the SI160X800H is discontinued. The direct replacement is the SAI160X800H. It is dimensionally interchangeable per ISO 15552, maintaining the same 160 mm bore, 800 mm stroke, 10053 N force, G3/4 port, and mounting interface.
The SI160X800H operates at 30-500 mm/s. Force ratings include push 10053 N and pull 9425 N at 0.5 MPa, push 14074 N at 0.7 MPa, push 18095 N at 0.9 MPa, and a theoretical max of 2050 kgf at 1.0 MPa. The port is G3/4.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X800H replacement — usually within 7-8 hours.