This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X40CA, 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 SI200X40CA
The AirTAC Airtac SI200 Standard Cylinder SI200X40CA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 40mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X40CA, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke40 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X40CA
- 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 SI200X40CA
The AirTAC SI200X40CA is a discontinued double-acting ISO 15552 profile cylinder engineered for heavy-duty tasks, delivering a push force of 15708 N at 0.5 MPa through its 200 mm bore. This legacy unit features a 40 mm carbon steel rod, M36x2 thread, and a G3/4 air port. Because this model has no magnet (-S), it cannot accept position sensors. AirTAC replaced the SI line with the SAI family, making the SAI200X40CA the direct replacement. It preserves the original ISO 15552 mounting interface, 40 mm stroke, output force, and CA clevis mount, fitting directly into existing fixtures.
The SAI upgrade introduces an advanced piston seal with two Y-shaped one-way elements, ensuring long life and low start-up pressure. If your application requires load holding on air loss, note that a standard cylinder drifts; you should specify the SAIL or BSAI lock variants, or utilize an external pilot check valve.
Airtac SI200 Standard Cylinder SI200X40CA Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X40CA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X40CA |
| Bore size | Ø200 mm |
| Stroke | 40 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 SAI200X40CA 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 SAI200X40CA 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 SI200X40CA
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×40 | 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 SI200X40CA Is Used
Heavy Press Tonnage
Drives large stamping and forming presses requiring up to 15708 N of push force at 0.5 MPa with stable CA clevis mounting.
Large Mold Handling
Indexes heavy injection molds or industrial fixtures over a short 40 mm stroke with reliable ISO 15552 interface dimensions.
Replacing the Airtac SI200 Standard Cylinder SI200X40CA with the SAI200X40CA
To replace the discontinued SI200X40CA, order the SAI200X40CA. Verify your setup retains the CA clevis mounting accessory and the G3/4 port. This unit lacks a magnet, so if position sensing is needed, you must select an SAI model with the -S suffix to use current AirTAC switches. If you need less force, consider the 160 mm bore (10053 N push), or step up to a larger diameter if higher thrust is required. Remember that the air cushion only decelerates the load near stroke end; it does not hold position. For secure load holding during air loss, choose the SAIL air-released lock or BSAI clamp-lock variant, or add an external rod lock.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X40CA
- ✓ 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 SI200X40CA FAQ
Yes, the SI200X40CA is discontinued. The direct replacement is the SAI200X40CA. It shares the identical ISO 15552 mounting interface, 200 mm bore, 40 mm stroke, CA mount, and G3/4 port, fitting your existing fixtures perfectly.
The bore is 200 mm with a G3/4 port. It delivers 15708 N push and 15080 N pull at 0.5 MPa, 21991 N push at 0.7 MPa, and 28274 N push at 0.9 MPa. The theoretical max force is 3204 kgf at 1.0 MPa. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X40CA
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X40CA replacement — usually within 7-8 hours.