This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X750S, 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 SI200X750S
The AirTAC SI200 Standard Cylinder SI200X750S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 750mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X750S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke750 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X750S
- 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 SI200X750S
The AirTAC SI200X750S is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 750 mm stroke. Generating 15708 N push force at 0.5 MPa, it features a G3/4 port and a 50 mm adjustable air cushion. AirTAC replaced this legacy unit with the SAI200X750S, a direct sharing the exact ISO 15552 mounting interface, bore, stroke, force, port and mounting accessories.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. The SAI family also adds SAIL and BSAI lock variants the SI lacked. This -S SKU uses a piston magnet for CS1-B/DS1-B sensors, while the SAI takes current AirTAC switches.
Airtac SI200 Standard Cylinder SI200X750S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X750S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X750S |
| Bore size | Ø200 mm |
| Stroke | 750 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 SAI200X750S 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 SAI200X750S 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 SI200X750S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×750 | 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 SI200X750S Is Used
Heavy Stamp Pressing
Drives large metal forming and stamping dies requiring up to 28274 N of push force at 0.9 MPa.
Large Clamp Actuation
Secures massive fabricated components during welding or machining using the full 15080 N pull force.
Replacing the Airtac SI200 Standard Cylinder SI200X750S with the SAI200X750S
To replace the SI200X750S, order the SAI200X750S and verify your ISO 15552 mounting interface, G3/4 port, and M36x2 rod thread. Keep the -S magnet for current AirTAC switches. Sizing both ways: a 160 mm neighbor bore yields 10053 N push at 0.5 MPa, while this 200 mm bore hits 21991 N at 0.7 MPa. For the 750 mm stroke, use external guides to prevent rod bending and side-load damage. Note that a plain cylinder drifts on air loss; the cushion only decelerates. For load holding, specify an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. Rod material options include carbon steel, SUS420J2 (A), or SUS304 (B); seal options include Viton H for high temp.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X750S
- ✓ 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 SI200X750S FAQ
Yes, the SI200X750S is discontinued. The direct replacement is the SAI200X750S. It shares the identical ISO 15552 mounting interface, 200 mm bore, 750 mm stroke, output force, and G3/4 port, fitting directly into your existing fixtures.
At 0.5 MPa it provides 15708 N push and 15080 N pull. At 0.7 MPa push is 21991 N, and at 0.9 MPa it is 28274 N. 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 SAI200X750S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X750S replacement — usually within 7-8 hours.