This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX35S, 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 SI200AX35S
The AirTAC Airtac SI200 Standard Cylinder SI200AX35S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 35mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200AX35S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke35 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200AX35S
- 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 SI200AX35S
The AirTAC SI200AX35S is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 35 mm stroke. It delivers 15708 N push force at 0.5 MPa via a G3/4 port. The direct replacement is the SAI200AX35S, matching the bore, stroke, force, port and ISO 15552 mounting interface exactly.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure. This -A variant uses a SUS420J2 stainless rod, and the -S magnet works with legacy CS1-B/DS1-B sensors.
Airtac SI200 Standard Cylinder SI200AX35S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200AX35S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX35S |
| Bore size | Ø200 mm |
| Stroke | 35 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 SAI200AX35S 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 SAI200AX35S 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 SI200AX35S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×35 | 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 SI200AX35S Is Used
Heavy Press Operations
Drives large stamping and forming presses requiring 15708 N push at 0.5 MPa, utilizing the 200 mm bore for massive force over a short 35 mm stroke.
Industrial Clamp Systems
Secures heavy structural steel or large molds during machining, relying on the SUS420J2 stainless rod to resist corrosion in harsh manufacturing environments.
Replacing the Airtac SI200 Standard Cylinder SI200AX35S with the SAI200AX35S
To replace the SI200AX35S, order the SAI200AX35S keeping the 200 mm bore, 35 mm stroke, G3/4 port, M36x2 thread and ISO 15552 mounting. Confirm the -S magnet (legacy CS1-B/DS1-B sensors) and the -A SUS420J2 stainless rod. Sizing both ways: 160 mm yields 10053 N [email protected], while 200 mm at 0.7 MPa yields 21991 N. A plain cylinder drifts on air loss; for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. The 50 mm cushions decelerate but do not lock.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200AX35S
- ✓ 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 SI200AX35S FAQ
Yes, the SI200AX35S is discontinued. The direct replacement is the SAI200AX35S. It is dimensionally interchangeable per ISO 15552, matching the 200 mm bore, 35 mm stroke, 15708 N force, G3/4 port and mounting interface.
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 max is 3204 kgf at 1.0 MPa. Operating speed is 30-500 mm/s, and the G3/4 port handles the required air volume.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200AX35S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX35S replacement — usually within 7-8 hours.