This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X800STC, 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.
Airtac SI200 Standard Cylinder SI200X800STC
The AirTAC SI200 Standard Cylinder SI200X800STC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 800mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X800STC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke800 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X800STC
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SI200 Standard Cylinder SI200X800STC
The AirTAC SI200X800STC is a discontinued double-acting ISO 15552 profile cylinder with an 800 mm stroke, delivering 15708 N push force at 0.5 MPa through its G3/4 port. It is replaced by the SAI200X800STC, a direct sharing the exact bore, stroke, M36x2 rod thread and TC trunnion mounting interface.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The SAI family also adds SAIL and BSAI lock variants absent in the SI line. Your -S magnet works with legacy CS1-B/DS1-B sensors.
Airtac SI200 Standard Cylinder SI200X800STC Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X800STC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X800STC |
| Bore size | Ø200 mm |
| Stroke | 800 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 SAI200X800STC carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø200mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
The SAI200X800STC produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI200 Standard Cylinder SI200X800STC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×800 | 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).
Where the Airtac SI200 Standard Cylinder SI200X800STC Is Used
Heavy Stamp Press
Drives large stamping dies requiring 21991 N push at 0.7 MPa, utilizing the 50 mm adjustable cushions to halt the massive moving mass.
Bulk Material Divert
Shifts heavy aggregate or metal scrap chutes across an 800 mm span, needing external guides to prevent side-load damage on the long rod.
Replacing the Airtac SI200 Standard Cylinder SI200X800STC with the SAI200X800STC
To replace the SI200X800STC, order the SAI200X800STC. Confirm the ISO 15552 TC trunnion interface, 200 mm bore, 800 mm stroke, G3/4 port and -S magnet. It sizes downward to a 160 mm bore (10053 N push @0.5 MPa) or upward if you need more than the 3204 kgf max. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock or pilot check valve for holding. At 800 mm, use an external guide to prevent rod bending. Speed is 30-500 mm/s.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X800STC
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI200 Standard Cylinder SI200X800STC FAQ
Yes, the SI200X800STC is discontinued. The direct replacement is the SAI200X800STC. It shares the identical ISO 15552 mounting interface, 200 mm bore, 800 mm stroke, output force, G3/4 port and TC trunnion, fitting existing fixtures perfectly.
It features a G3/4 port. Force output 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.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X800STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X800STC replacement — usually within 7-8 hours.