This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX220SH, 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 SI200BX220SH is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 220mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200BX220SH, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI200BX220SH is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 220 mm stroke. Built with an extruded aluminum barrel, it delivers 15708 N push and 15080 N pull at 0.5 MPa, and features a G3/4 port, M36x2 rod thread, and 50 mm adjustable air cushions. The direct replacement is the SAI200BX220SH, matching the bore, stroke, force, port, and ISO 15552 mounting interface.
This specific unit includes the -B SUS304 stainless piston rod for corrosion resistance, the -S magnet for legacy CS1-B/DS1-B sensors, and the -H Viton seal allowing 0-150 C operation. The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure. Note that plain cylinders drift without live air; use the SAIL or BSAI lock variants for load holding.
| Model | Airtac SI200 Standard Cylinder SI200BX220SH |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX220SH |
| Bore size | Ø200 mm |
| Stroke | 220 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 SAI200BX220SH 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 SAI200BX220SH 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. |
| ×220 | 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 heavy-duty stamping dies requiring 15708 N of push force at 0.5 MPa, utilizing the 50 mm adjustable cushions to absorb massive end-of-stroke kinetic energy.
Ejects formed metal parts from heated molds using the -H Viton seals rated for 150 C and the -B SUS304 stainless rod to withstand harsh, corrosive manufacturing environments.
To replace the SI200BX220SH, order the SAI200BX220SH. Confirm the ISO 15552 mounting interface, the 200 mm bore, 220 mm stroke, G3/4 port, and your specific mounting accessory. Retain the -S magnet for current AirTAC switches, the -B SUS304 rod, and the -H Viton high-temp seal. The SAI family adds the SAIL air-released lock, SAIF built-in valve, and BSAI clamp-lock variants the SI lacked. A plain cylinder does not hold load without live air; use a pilot check valve or lock variant for holding. Sizing both ways: a 160 mm bore yields 10053 N push at 0.5 MPa, while a 200 mm bore yields 21991 N at 0.7 MPa. For this 220 mm stroke, ensure guide alignment to prevent rod-bending side loads.
Replacement checklist
Yes, the AirTAC SI200BX220SH is discontinued and end-of-life. The direct replacement is the SAI200BX220SH. It is dimensionally interchangeable per the ISO 15552 mounting interface, offering the same 200 mm bore, 220 mm stroke, 15708 N force, G3/4 port, and mounting compatibility.
The bore is 200 mm with a G3/4 air port. The thrust is 15708 N push and 15080 N pull at 0.5 MPa, 21991 N push at 0.7 MPa, 28274 N push at 0.9 MPa, and a theoretical max of 3204 kgf at 1.0 MPa. The piston rod is 40 mm with an M36x2 thread.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200BX220SH replacement — usually within 7-8 hours.