This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X160TC, 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 SI200 Standard Cylinder SI200X160TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 160mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X160TC, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI200X160TC is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 160mm stroke. It delivers 15708 N push and 15080 N pull at 0.5 MPa through a G3/4 port. Because this legacy unit is end-of-life, you should order the SAI200X160TC direct replacement. It shares the exact ISO 15552 mounting interface, TC trunnion, M36x2 rod thread and force ratings.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. Note this specific SKU lacks a magnet, so it cannot accept CS1-B/DS1-B sensors. The SAI family also adds SAIL, SAIF and BSAI lock variants the SI lacked.
| Model | Airtac SI200 Standard Cylinder SI200X160TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X160TC |
| Bore size | Ø200 mm |
| Stroke | 160 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 SAI200X160TC 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 | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
The SAI200X160TC 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). |
|---|---|
| 200 | Bore size in mm. |
| ×160 | 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 21991 N at 0.7 MPa for forming and stamping thick materials, utilizing the robust 40mm piston rod.
Drives industrial diverter gates and heavy doors where the TC trunnion absorbs pivot stresses.
To replace the SI200X160TC, specify the SAI200X160TC and verify the ISO 15552 TC trunnion mount, 160mm stroke, G3/4 port and M36x2 thread. This non-magnetic SKU cannot take position sensors; if sensing is needed, order an SAI with the S suffix for current switches. For load sizing, the 200mm bore yields 15708 N at 0.5 MPa; dropping to a 160mm bore gives 10053 N. A plain cylinder drifts on air loss—the 50mm cushions only decelerate—so use an external rod lock or pilot check valve for holding, or select the SAIL/BSAI lock variant. With a 160mm stroke, rod bending is low, but always guide the load to prevent side-load wear.
Replacement checklist
Yes, the SI200X160TC is discontinued. The direct replacement is the SAI200X160TC. It is dimensionally interchangeable per ISO 15552, retaining the same 200mm bore, 160mm stroke, G3/4 port, TC mount and output force.
At 0.5 MPa it pushes 15708 N and pulls 15080 N. At 0.7 MPa push is 21991 N, and at 0.9 MPa it is 28274 N. The theoretical max is 3204 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 SAI200X160TC replacement — usually within 7-8 hours.