This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX200S, 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 SI200AX200S
The AirTAC SI200 Standard Cylinder SI200AX200S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 200mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200AX200S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke200 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200AX200S
- 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 SI200AX200S
The AirTAC SI200AX200S is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 200 mm stroke, delivering 15708 N of push force at 0.5 MPa. It features a G3/4 air port, an M36x2 rod thread, and a 50 mm adjustable air cushion at each end. AirTAC replaced this legacy unit with the SAI200AX200S, a direct replacement sharing the exact same ISO 15552 mounting interface, bore, stroke, force, and port size.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. This SI200AX200S variant uses a SUS420J2 stainless steel rod (-A) for corrosion resistance and includes a piston magnet (-S) for legacy CS1-B/DS1-B sensors.
Airtac SI200 Standard Cylinder SI200AX200S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200AX200S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX200S |
| Bore size | Ø200 mm |
| Stroke | 200 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 SAI200AX200S 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 SAI200AX200S 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 SI200AX200S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×200 | 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 SI200AX200S Is Used
Heavy Stamping Press
Drives large heavy-duty stamping dies requiring 15708 N of push force at 0.5 MPa with robust 50 mm end cushions to absorb high kinetic energy.
Automotive Assembly Jig
Actuates massive structural clamps on an automotive line, utilising the SUS420J2 stainless rod to resist coolant and shop-floor moisture.
Replacing the Airtac SI200 Standard Cylinder SI200AX200S with the SAI200AX200S
To replace the discontinued SI200AX200S, order the SAI200AX200S and verify your ISO 15552 mounting interface, 200 mm stroke, and G3/4 port. Retain your existing mounting accessories and confirm the -A SUS420J2 stainless rod and -S magnet for current AirTAC switches. If downsizing, a 160 mm bore yields 10053 N at 0.5 MPa; if upsizing is impossible, this 200 mm bore hits 21991 N at 0.7 MPa. Note that a plain cylinder drifts without live air—the cushion only decelerates—so use an external rod lock or pilot check valve for load holding. The SAI family also offers SAIL and BSAI clamp-lock variants if integrated braking is needed.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200AX200S
- ✓ 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 SI200AX200S FAQ
Yes, the SI200AX200S is discontinued. The direct replacement is the SAI200AX200S. It shares the identical ISO 15552 mounting interface, 200 mm bore, 200 mm stroke, output force, and G3/4 port, fitting directly into existing fixtures.
The 200 mm bore generates a push of 15708 N and a pull of 15080 N at 0.5 MPa. At 0.7 MPa push is 21991 N, and 28274 N at 0.9 MPa. The theoretical max force is 3204 kgf at 1.0 MPa, with an operating speed of 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200AX200S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX200S replacement — usually within 7-8 hours.