This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X200SFA, 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 Airtac SI160 Standard Cylinder SI160X200SFA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 200mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X200SFA, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X200SFA is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 200 mm stroke, delivering 10053 N push force at 0.5 MPa via its G3/4 port. It is replaced by the SAI160X200SFA, a direct upgrade retaining the exact ISO 15552 mounting interface, FA flange, M36x2 rod thread, and 50 mm cushions.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The SAI family adds SAIL and BSAI lock variants the SI lacked. This -S SKU uses CS1-B/DS1-B sensors; no-S SKUs cannot take sensors.
| Model | Airtac SI160 Standard Cylinder SI160X200SFA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X200SFA |
| Bore size | Ø160 mm |
| Stroke | 200 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 SAI160X200SFA 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 SAI160X200SFA 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. |
| ×200 | 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).
Generates 14074 N at 0.7 MPa for forming heavy-gauge metal components and stamping operations requiring immense downstroke power.
Secures large injection molds via the FA flange mount, utilizing the 50 mm adjustable air cushions to decelerate heavy tooling at stroke end.
To replace the SI160X200SFA, order the SAI160X200SFA. Verify the ISO 15552 FA flange interface, 160 mm bore, 200 mm stroke, G3/4 port, and -S magnet for CS1-B/DS1-B switches. Sizing both ways: the 125 mm bore yields 6136 N [email protected], while the 200 mm bore yields 15708 N. A plain cylinder drifts on air loss; cushions only decelerate. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. The 40 mm rod handles high side-loads, but for any stroke >=300 mm add a guide to prevent rod bending. Rod options include carbon steel, SUS420J2 (A), or SUS304 (B); Viton H seals raise temp to 150 C.
Replacement checklist
Yes, the SI160X200SFA is discontinued. The direct replacement is the SAI160X200SFA. It is dimensionally interchangeable per ISO 15552, matching the 160 mm bore, 200 mm stroke, G3/4 port, FA flange, and output force exactly.
The G3/4 port feeds a 40 mm rod. Forces 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 theoretical max of 2050 kgf at 1.0 MPa. Speed is 30-500 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X200SFA replacement — usually within 7-8 hours.