This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX175, 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 SI200AX175
The AirTAC Airtac SI200 Standard Cylinder SI200AX175 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 175mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200AX175, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke175 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200AX175
- 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 SI200AX175
The AirTAC SI200AX175 is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 175mm stroke. Delivering 15708 N push force at 0.5 MPa via a G3/4 port, it is replaced by the direct replacement SAI200AX175. This upgrade features a new piston seal with two Y-shaped one-way elements for low start-up pressure and long life.
Because this SKU lacks the -S suffix, it cannot accept a magnetic sensor. The -A code denotes a SUS420J2 stainless steel piston rod for corrosion resistance. The SAI family adds SAIL, SAIF, and BSAI lock variants absent in the SI line. Note that a plain cylinder drifts without live air; use an external rod lock or pilot check valve for load holding.
Airtac SI200 Standard Cylinder SI200AX175 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200AX175 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX175 |
| Bore size | Ø200 mm |
| Stroke | 175 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 SAI200AX175 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 SAI200AX175 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 SI200AX175
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×175 | 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 SI200AX175 Is Used
Heavy Press Stamping
Drives large presses and forming tools requiring massive output force, utilizing the 15708 N push capacity at 0.5 MPa.
Industrial Clamp Fixtures
Secures large fabricated components during machining or welding, relying on the 50mm adjustable air cushions to decelerate heavy masses.
Replacing the Airtac SI200 Standard Cylinder SI200AX175 with the SAI200AX175
To replace the SI200AX175, order the SAI200AX175. It drops into existing fixtures via the same ISO 15552 mounting interface, matching the 200mm bore, 175mm stroke, G3/4 port, and M36x2 rod thread. Confirm your mounting accessory (LB, FA, TC, etc.) and thread standard (PT, G, NPT). Since this SKU lacks -S, it cannot take a switch; if sensing is needed, select a current SAI switch with the magnet option. For sizing, the 160mm bore neighbor yields 10053 N push at 0.5 MPa, while the 200mm bore hits 21991 N at 0.7 MPa. A plain cylinder does not hold load on air loss; for braking, specify the SAIL or BSAI lock variant, or use an external pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200AX175
- ✓ 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 SI200AX175 FAQ
Yes, the AirTAC SI200AX175 is discontinued. The direct replacement is the SAI200AX175. It shares the identical ISO 15552 mounting interface, 200mm bore, 175mm stroke, force, and G3/4 port, fitting existing fixtures perfectly.
The 200mm bore uses a G3/4 air port. Force ratings are: 15708 N push and 15080 N pull at 0.5 MPa; 21991 N push at 0.7 MPa; 28274 N push at 0.9 MPa; with a theoretical max of 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200AX175
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX175 replacement — usually within 7-8 hours.