This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X175S, 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 SI200X175S
The AirTAC SI200 Standard Cylinder SI200X175S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 175mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X175S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke175 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X175S
- 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 SI200X175S
The AirTAC SI200X175S is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 175 mm stroke, delivering 15708 N push force at 0.5 MPa through its G3/4 port. AirTAC replaced this legacy unit with the SAI200X175S. This current-production direct maintains the exact ISO 15552 mounting interface, bore, stroke, output force, port size and mounting accessories, fitting existing fixtures perfectly.
The SAI upgrade features a refined piston seal using two Y-shaped one-way elements for low start-up pressure and extended life. For load holding, note that a standard cylinder drifts on air loss—the cushion only decelerates—so consider the SAIL or BSAI lock variants.
Airtac SI200 Standard Cylinder SI200X175S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X175S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X175S |
| Bore size | Ø200 mm |
| Stroke | 175 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 SAI200X175S 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 SAI200X175S 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 SI200X175S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×175 | 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 SI200X175S Is Used
Heavy Stamp Pressing
Drives large stamping dies with 15708 N push force at 0.5 MPa, utilizing the robust 40 mm piston rod for high-impact metal forming.
Industrial Clamp Systems
Secures large fabricated components during welding or machining, using adjustable 50 mm air cushions to decelerate the heavy 200 mm piston smoothly.
Replacing the Airtac SI200 Standard Cylinder SI200X175S with the SAI200X175S
To replace the SI200X175S, order the SAI200X175S. Confirm the ISO 15552 mounting interface, the 200 mm bore, 175 mm stroke, G3/4 port (PT/G/NPT thread), and the -S magnet for CS1-B/DS1-B legacy sensors (the SAI uses current AirTAC switches). Sizing context: a 160 mm bore yields 10053 N push at 0.5 MPa, while the 200 mm bore yields 15708 N. If your application requires load holding on air loss, do not rely on the air cushion; instead, specify the SAIL air-released lock, the BSAI clamp-lock, or an external pilot check valve. For this 175 mm stroke, side-load is minimal, but always guide the load to prevent rod bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X175S
- ✓ 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 SI200X175S FAQ
Yes, the SI200X175S is discontinued. The direct replacement is the AirTAC SAI200X175S. It shares the identical ISO 15552 mounting interface, 200 mm bore, 175 mm stroke, force, and G3/4 port, fitting directly into your existing fixtures.
The G3/4 port feeds a 40 mm rod. At 0.5 MPa it pushes 15708 N and pulls 15080 N. Push force is 21991 N at 0.7 MPa and 28274 N at 0.9 MPa. The theoretical maximum force is 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X175S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X175S replacement — usually within 7-8 hours.