This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX30S, 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 SI200AX30S
The AirTAC Airtac SI200 Standard Cylinder SI200AX30S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 30mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200AX30S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke30 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200AX30S
- 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 SI200AX30S
The AirTAC SI200AX30S is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 30 mm stroke. Delivering 15708 N push force at 0.5 MPa, it features a SUS420J2 stainless piston rod, a G3/4 port, and a piston magnet for CS1-B/DS1-B sensors. AirTAC replaced this EOL unit with the SAI200AX30S, a direct sharing the exact ISO 15552 mounting interface, bore, and force.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. Note that plain cylinders drift without live air; use the SAIL or BSAI lock variants for load holding.
Airtac SI200 Standard Cylinder SI200AX30S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200AX30S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX30S |
| Bore size | Ø200 mm |
| Stroke | 30 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 SAI200AX30S 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 SAI200AX30S 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 SI200AX30S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×30 | 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 SI200AX30S Is Used
Heavy Press Clamping
Generates 15708 N at 0.5 MPa to secure large steel fabrications during machining or welding operations.
Pallet Ejection
Short 30 mm stroke delivers high-impact force to break loose and eject heavy pallets from conveyors.
Mold Locking
Holds heavy injection molds shut with 801 kg safe vertical lift capacity using the SUS420J2 stainless rod.
Replacing the Airtac SI200 Standard Cylinder SI200AX30S with the SAI200AX30S
To replace the SI200AX30S, order the SAI200AX30S. Confirm the ISO 15552 mounting fixture, 200 mm bore, 30 mm stroke, G3/4 port, and the -S magnet for current AirTAC switches. The -A rod denotes SUS420J2 stainless steel, ideal for corrosive settings. If downsizing, a 160 mm bore yields 10053 N push at 0.5 MPa; if upsizing is impossible, this 200 mm bore hits 21991 N at 0.7 MPa. Remember, the air cushion only decelerates; it does not hold load. For drop prevention, specify the SAIL air-released lock or BSAI clamp-lock variant. Strokes under 300 mm minimize rod-bending side loads, but always guide the load.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200AX30S
- ✓ 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 SI200AX30S FAQ
Yes, the SI200AX30S is discontinued. The direct replacement is the SAI200AX30S. It shares the identical ISO 15552 mounting interface, 200 mm bore, 30 mm stroke, G3/4 port, and force ratings, fitting existing fixtures perfectly.
The G3/4 port supplies a 200 mm bore generating 15708 N push and 15080 N pull at 0.5 MPa. At 0.7 MPa push is 21991 N, and 28274 N at 0.9 MPa. The theoretical max is 3204 kgf at 1.0 MPa. Speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200AX30S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX30S replacement — usually within 7-8 hours.