This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX750S, 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 SI200AX750S
The AirTAC SI200 Standard Cylinder SI200AX750S 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 SAI200AX750S, 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 → SAI200AX750S
- 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 SI200AX750S
The AirTAC SI200AX750S is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 750mm stroke. Built with an extruded aluminum barrel, it delivers 15708 N of push force at 0.5 MPa. The direct replacement is the SAI200AX750S, matching the bore, stroke, output force, G3/4 port, and ISO 15552 mounting interface. The SAI features an upgraded piston seal with two Y-shaped one-way elements for lower start-up pressure and longer life.
This specific unit includes a SUS420J2 stainless steel rod (A) and a piston magnet (S) for legacy CS1-B/DS1-B sensors. The SAI family also introduces SAIL and BSAI lock variants absent in the original SI line.
Airtac SI200 Standard Cylinder SI200AX750S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200AX750S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX750S |
| 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 SAI200AX750S 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 SAI200AX750S 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 SI200AX750S
| 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 SI200AX750S Is Used
Heavy Stamping
Drives large presses and stamping dies requiring massive push force and stable 750mm travel.
Automotive Assembly
Actuates heavy-duty lifting platforms and large component positioning fixtures on production lines.
Pallet Handling
Indexes heavy loaded pallets or transfer carts where high kinetic energy demands robust cushions.
Replacing the Airtac SI200 Standard Cylinder SI200AX750S with the SAI200AX750S
To replace the SI200AX750S, order the SAI200AX750S. Verify the ISO 15552 mounting interface, 200mm bore, 750mm stroke, G3/4 port, and the -S magnet for current AirTAC switches. If you need more force, the nearest larger standard profile bore is beyond this range, but you can also increase pressure up to 1.0 MPa to reach a theoretical max of 3204 kgf. For lower force needs, step down to a 160mm bore. Because this is a 750mm stroke, use external guides to prevent rod bending and side-load damage. A plain cylinder drifts without live air; for load holding, use an external rod lock, a pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200AX750S
- ✓ 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 SI200AX750S FAQ
Yes, the SI200AX750S is discontinued. The direct replacement is the SAI200AX750S. It is dimensionally interchangeable per ISO 15552, offering the same 200mm bore, 750mm stroke, force, G3/4 port, and mounting interface.
It features a G3/4 port and delivers a push of 15708 N and pull of 15080 N at 0.5 MPa. At 0.7 MPa, push is 21991 N. The theoretical maximum force is 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200AX750S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX750S replacement — usually within 7-8 hours.