This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX80SH, 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 SI200BX80SH is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 80mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200BX80SH, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI200BX80SH is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm stroke. Built for heavy-duty tasks, it delivers 15708 N push force at 0.5 MPa. The direct replacement is the SAI200BX80SH, matching the bore, stroke, force, G3/4 port and ISO 15552 mounting interface. This SAI variant features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life.
This unit includes a -B SUS304 stainless piston rod, a -H Viton high-temperature seal rated for 0-150 C, and a -S magnet for legacy CS1-B/DS1-B switches. Note that a plain cylinder drifts on air loss; the cushion only decelerates. For load holding, use the SAIL or BSAI lock variants.
| Model | Airtac SI200 Standard Cylinder SI200BX80SH |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX80SH |
| Bore size | Ø200 mm |
| Stroke | 80 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 SAI200BX80SH 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 SAI200BX80SH 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. |
| ×80 | 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 15708 N push force at 0.5 MPa with stable ISO 15552 mounting.
Operates in hot industrial zones up to 150 C using the Viton H seal and SUS304 stainless piston rod for corrosion resistance.
Shifts heavy palletized loads with an 801 kg vertical lift capacity, utilizing the 80 mm stroke for compact clamping.
To replace the discontinued SI200BX80SH, order the SAI200BX80SH. Confirm the ISO 15552 mounting interface, 200 mm bore, 80 mm stroke, G3/4 port, and your specific mounting accessory. Retain the -S magnet for current AirTAC switches, the -B SUS304 rod for corrosion resistance, and the -H Viton seal for 0-150 C environments. When sizing, this bore provides 15708 N push at 0.5 MPa; if stepping down, a 160 mm bore offers 10053 N. Because a standard cylinder drifts without live air, select the SAIL or BSAI lock variant, or an external pilot check valve, to hold loads safely.
Replacement checklist
Yes, the SI200BX80SH is discontinued. The direct replacement is the SAI200BX80SH. It is dimensionally interchangeable per the ISO 15552 mounting interface, maintaining the same 200 mm bore, 80 mm stroke, force, G3/4 port, and mounting accessories.
This double-acting cylinder has a G3/4 port. It delivers 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 force of 3204 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200BX80SH replacement — usually within 7-8 hours.