This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX1000, 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 SI200 Standard Cylinder SI200BX1000 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 1000mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200BX1000, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI200BX1000 is a discontinued double-acting ISO 15552 profile cylinder featuring a 200mm bore and 1000mm stroke. Delivering 15708 N push force at 0.5 MPa, it is replaced by the SAI200BX1000. This direct successor matches the exact G3/4 port, M36x2 thread, and ISO 15552 mounting interface.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure. Note this SKU lacks a magnet, so it cannot take a sensor.
| Model | Airtac SI200 Standard Cylinder SI200BX1000 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX1000 |
| Bore size | Ø200 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 SAI200BX1000 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 SAI200BX1000 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. |
| ×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 stamping and forming presses requiring 21991 N push force at 0.7 MPa to mold dense industrial materials.
Shifts loaded pallets over 1000mm cycles where the massive 3204 kgf max theoretical force handles substantial deadweights.
Indexes heavy machinery components along extended transfer lines, utilizing the 50mm adjustable air cushions for smooth stops.
To replace the SI200BX1000, order the SAI200BX1000, confirming the ISO 15552 mounting interface, 200mm bore, 1000mm stroke, and G3/4 port. If downsizing, neighbor bores offer lower force. For load holding, note a plain cylinder drifts on air loss; use an external rod lock or pilot check valve, or specify the SAIL/BSAI lock variant. The 1000mm stroke requires external guides to prevent rod bending under side loads. The SAI family also adds SAIF valve variants lacking in the SI line.
Replacement checklist
Yes, the SI200BX1000 is discontinued. The direct replacement is the SAI200BX1000, which shares the same ISO 15552 mounting interface, 200mm bore, 1000mm stroke, force, and G3/4 port.
It features a G3/4 port and delivers 15708 N push / 15080 N pull at 0.5 MPa, 21991 N push at 0.7 MPa, and a max theoretical force of 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 SAI200BX1000 replacement — usually within 7-8 hours.