This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X240, 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 SI200X240
The AirTAC SI200 Standard Cylinder SI200X240 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 240mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X240, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke240 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X240
- 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 SI200X240
The AirTAC SI200X240 is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 240mm stroke, delivering 15708 N push force at 0.5 MPa. AirTAC replaced it with the SAI200X240 direct, maintaining the same G3/4 port, M36x2 thread, and ISO 15552 mounting interface.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure. This plain SKU lacks a magnet and cannot take a sensor. For high heat, Viton H seals raise the temperature limit to 150 C.
Airtac SI200 Standard Cylinder SI200X240 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X240 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X240 |
| Bore size | Ø200 mm |
| Stroke | 240 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 SAI200X240 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 SAI200X240 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 SI200X240
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×240 | 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 SI200X240 Is Used
Heavy Pressing
Drives large stamping and forming presses requiring 15708 N of push force at 0.5 MPa.
Pallet Handling
Indexes heavy loaded pallets in automated distribution centers with a 240mm stroke.
Mold Actuation
Shifts substantial injection mold bases and industrial tooling within machining facilities.
Replacing the Airtac SI200 Standard Cylinder SI200X240 with the SAI200X240
To replace the SI200X240, order the SAI200X240 keeping the identical 200mm bore, 240mm stroke, and ISO 15552 mounting interface. Confirm your porting (G3/4) and rod thread (M36x2). Because this SKU has no -S magnet, it cannot accept CS1-B/DS1-B sensors. If sizing down, a 160mm bore yields 10053 N push at 0.5 MPa; sizing up is not available. A plain cylinder drifts on air loss—the 50mm cushion only decelerates—so use an external rod lock or pilot check valve for holding. For lock needs, consider the SAIL or BSAI variants. At 240mm stroke, rod bending is minimal, but always guide the load to prevent side-load wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X240
- ✓ 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 SI200X240 FAQ
Yes, the SI200X240 is discontinued. The direct replacement is the SAI200X240, which shares the exact ISO 15552 mounting interface, 200mm bore, 240mm stroke, and G3/4 port.
It features a G3/4 port and delivers 15708 N push / 15080 N pull at 0.5 MPa, 21991 N push at 0.7 MPa, and a max force of 3204 kgf at 1.0 MPa. Speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X240
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X240 replacement — usually within 7-8 hours.