This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX5S, 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 SI200AX5S
The AirTAC Airtac SI200 Standard Cylinder SI200AX5S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 5mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200AX5S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke5 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200AX5S
- 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 SI200AX5S
The AirTAC SI200AX5S is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 5mm stroke, delivering 15708 N of push force at 0.5 MPa. It features a G3/4 port and an SUS420J2 stainless steel piston rod. AirTAC replaced this legacy unit with the SAI200AX5S, a direct replacement retaining the exact ISO 15552 mounting interface, bore, stroke, output force, and port size.
The SAI upgrade introduces a refined piston seal using two Y-shaped one-way elements for low start-up pressure and extended life. The original -S magnet supports legacy CS1-B/DS1-B sensors, while the SAI family also adds SAIL, SAIF, and BSAI lock variants absent from the SI line.
Airtac SI200 Standard Cylinder SI200AX5S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200AX5S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX5S |
| Bore size | Ø200 mm |
| Stroke | 5 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 SAI200AX5S 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 SAI200AX5S 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 SI200AX5S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×5 | 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 SI200AX5S Is Used
Heavy-Duty Spot Clamping
Generates massive clamping force in a short 5mm travel distance, ideal for securing large steel weldments during machining operations.
High-Force Ejection
Provides abrupt, powerful ejection of heavy forged parts from hydraulic presses, utilizing the 200mm bore's 15708 N push at 0.5 MPa.
Short-Stroke Pressing
Executes high-tonnage pressing, riveting, and stamping tasks where minimal displacement but extreme output force is required.
Replacing the Airtac SI200 Standard Cylinder SI200AX5S with the SAI200AX5S
To replace the discontinued SI200AX5S, order the SAI200AX5S. Confirm the ISO 15552 mounting fixture, the 200mm bore, the 5mm stroke, the G3/4 port, and the -S magnet requirement. If downsizing, a 160mm bore yields 10053 N at 0.5 MPa; if upsizing is impossible, this 200mm bore already provides the maximum 3204 kgf at 1.0 MPa. Note that a plain cylinder drifts without live air—the cushion only decelerates—so use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant for load holding. The -A rod specifies SUS420J2 stainless steel for corrosion resistance. Because the stroke is only 5mm, side-load risks are minimal, but always verify rod alignment.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200AX5S
- ✓ 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 SI200AX5S FAQ
Yes, the AirTAC SI200AX5S is discontinued. The direct replacement is the SAI200AX5S. It features the same ISO 15552 mounting interface, 200mm bore, 5mm stroke, output force, and G3/4 port, fitting directly into existing fixtures.
This double-acting cylinder uses a G3/4 air port. It delivers a push force of 15708 N and a pull force of 15080 N at 0.5 MPa. At 0.7 MPa the push force is 21991 N, and at 0.9 MPa it is 28274 N. The theoretical maximum force is 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200AX5S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX5S replacement — usually within 7-8 hours.