This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X150STC, 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 SI200X150STC
The AirTAC SI200 Standard Cylinder SI200X150STC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 150mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X150STC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke150 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X150STC
- 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 SI200X150STC
The AirTAC SI200X150STC is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 150mm stroke. Delivering 15708 N push force at 0.5 MPa via a G3/4 port, it is replaced by the SAI200X150STC. This direct successor shares the exact ISO 15552 mounting interface, TC trunnion mount, and output force.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. The SAI family also adds SAIL and BSAI lock variants the SI lacked. Your -S magnet works with legacy CS1-B/DS1-B sensors.
Airtac SI200 Standard Cylinder SI200X150STC Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X150STC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X150STC |
| Bore size | Ø200 mm |
| Stroke | 150 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 SAI200X150STC 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 SAI200X150STC 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 SI200X150STC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×150 | 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 SI200X150STC Is Used
Heavy Stamping
Drives large presses and stamping dies requiring up to 3204 kgf theoretical max force at 1.0 MPa.
Pallet Handling
Indexes heavy loaded pallets on conveyors where the 150mm stroke and TC trunnion mount provide stability.
Automated Clamping
Secures large fabricated components during machining using the 15080 N pull force at 0.5 MPa.
Replacing the Airtac SI200 Standard Cylinder SI200X150STC with the SAI200X150STC
To replace the SI200X150STC, order the SAI200X150STC. Verify the ISO 15552 TC trunnion interface, 150mm stroke, G3/4 port, and -S magnet. Sizing both ways: a 160mm bore yields 10053 N [email protected], while a 200mm bore hits 21991 N at 0.7 MPa. For load holding, note a plain cylinder drifts on air loss; the 50mm cushion only decelerates. Use an external rod lock, pilot check valve, or SAIL/BSAI variant. Rod options include carbon or SUS304 (B); Viton H seals raise temp to 150 C.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X150STC
- ✓ 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 SI200X150STC FAQ
Yes, the SI200X150STC is discontinued. The direct replacement is the SAI200X150STC. It shares the same ISO 15552 mounting interface, 200mm bore, 150mm stroke, G3/4 port, and output force, fitting existing fixtures perfectly.
It features a G3/4 port. Force ratings are: push 15708 N and pull 15080 N at 0.5 MPa; push 21991 N at 0.7 MPa; push 28274 N at 0.9 MPa; with a theoretical max of 3204 kgf at 1.0 MPa. Speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X150STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X150STC replacement — usually within 7-8 hours.