This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X150, 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 SI200X150
The AirTAC Airtac SI200 Standard Cylinder SI200X150 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 150mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X150, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke150 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X150
- 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 SI200X150
The AirTAC SI200X150 is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 150 mm stroke. It delivers 15708 N push force at 0.5 MPa through a G3/4 port. The direct replacement is the SAI200X150, matching the ISO 15552 mounting interface, stroke, force, and port exactly.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. This no-magnet SKU cannot take a sensor; legacy -S versions used CS1-B/DS1-B switches. For high heat, Viton H seals raise the limit to 150 C.
Airtac SI200 Standard Cylinder SI200X150 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X150 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X150 |
| Bore size | Ø200 mm |
| Stroke | 150 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 SAI200X150 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 SAI200X150 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 SI200X150
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×150 | 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 SI200X150 Is Used
Heavy Press Tonnage
Drives large stamping and forming presses requiring up to 21991 N of thrust at 0.7 MPa to deform thick metal plates.
Automated Clamp Systems
Secures large fabricated weldments in robotic cells, using the 50 mm adjustable air cushions to smoothly stop high inertia.
Replacing the Airtac SI200 Standard Cylinder SI200X150 with the SAI200X150
To replace the SI200X150, order the SAI200X150 direct. Verify the ISO 15552 mounting accessory (LB, FA, CA, TC), the G3/4 port, and M36x2 rod thread. Because this SKU lacks the -S magnet, it cannot accept position sensors. If sizing up or down, neighboring bores are 160 mm and 125 mm; at 0.5 MPa, this 200 mm bore yields 15708 N push and 15080 N pull. Remember, a plain cylinder drifts without live air—the cushion only decelerates. For load holding on air loss, use an external pilot check valve, rod lock, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X150
- ✓ 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 SI200X150 FAQ
Yes, the SI200X150 is discontinued. The direct replacement is the SAI200X150. It is dimensionally interchangeable per ISO 15552, retaining the same 200 mm bore, 150 mm stroke, output force, G3/4 port, and mounting interface to fit existing fixtures directly.
The bore is 200 mm with a G3/4 air port. At 0.5 MPa it provides 15708 N push and 15080 N pull force. At 0.7 MPa push is 21991 N, and at 0.9 MPa it is 28274 N. The theoretical maximum force is 3204 kgf at 1.0 MPa. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X150
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X150 replacement — usually within 7-8 hours.