This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X940S, 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 SI200X940S
The AirTAC SI200 Standard Cylinder SI200X940S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 940mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X940S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke940 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X940S
- 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 SI200X940S
The AirTAC SI200X940S is a discontinued double-acting ISO 15552 profile cylinder featuring a 200mm bore and 940mm stroke. It delivers 15708 N push force at 0.5 MPa via a G3/4 port. AirTAC replaced this legacy unit with the SAI200X940S, a direct upgrade retaining the exact ISO 15552 mounting interface, bore, stroke, and output force.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. The SAI family also adds SAIL and BSAI lock variants the SI lacked. This -S model includes a piston magnet for CS1-B/DS1-B switches.
Airtac SI200 Standard Cylinder SI200X940S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X940S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X940S |
| Bore size | Ø200 mm |
| Stroke | 940 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 SAI200X940S 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 SAI200X940S 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 SI200X940S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×940 | 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 SI200X940S Is Used
Heavy Press Stamping
Drives large presses requiring 15708 N push at 0.5 MPa, utilizing the 940mm stroke to form heavy-gauge materials.
Large Mold Handling
Shifts heavy industrial molds along the 940mm travel, benefiting from the 50mm adjustable air cushions at both ends.
Replacing the Airtac SI200 Standard Cylinder SI200X940S with the SAI200X940S
To replace the SI200X940S, order the SAI200X940S. Confirm the ISO 15552 interface, 200mm bore, 940mm stroke, G3/4 port (PT/G/NPT), and mounting accessory. The -S magnet equates to legacy CS1-B/DS1-B sensors; the SAI uses current AirTAC switches. For sizing, the 200mm bore yields 15708 N push at 0.5 MPa; dropping to a 160mm bore gives 10053 N. Note that a plain cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or SAIL/BSAI variant. At 940mm, prevent rod bending by using external guides to manage side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X940S
- ✓ 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 SI200X940S FAQ
Yes, the SI200X940S is discontinued. The direct replacement is the SAI200X940S. It is dimensionally interchangeable per ISO 15552, matching the 200mm bore, 940mm stroke, G3/4 port, and mounting fixtures.
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, 28274 N push at 0.9 MPa, and a theoretical max of 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X940S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X940S replacement — usually within 7-8 hours.