This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X175, 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 SI200X175
The AirTAC Airtac SI200 Standard Cylinder SI200X175 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 SAI200X175, 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 → SAI200X175
- 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 SI200X175
The AirTAC SI200X175 is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 175 mm stroke. It delivers 15708 N push force at 0.5 MPa via a G3/4 port. The direct replacement is the SAI200X175, retaining the exact bore, stroke, force, port, and mounting interface.
This SAI upgrade features a new piston seal with two Y-shaped one-way elements for low start-up pressure and long life. Note this SKU lacks the -S magnet, so it cannot accept CS1-B/DS1-B sensors.
Airtac SI200 Standard Cylinder SI200X175 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X175 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X175 |
| 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 SAI200X175 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 SAI200X175 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 SI200X175
| 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 SI200X175 Is Used
Heavy Press Forming
Drives large stamping and forming presses requiring up to 9425 N of safe working force at 0.5 MPa.
Pallet Lifting
Actuates heavy-duty lifting arms to elevate loads approaching the 801 kg vertical lift threshold.
Industrial Clamp Jigs
Secures massive fabricated steel components during welding using the full 15708 N push capacity.
Replacing the Airtac SI200 Standard Cylinder SI200X175 with the SAI200X175
To replace the SI200X175, order the SAI200X175. Verify the ISO 15552 mounting interface, the 175 mm stroke, and the G3/4 port. Choose your thread standard (PT, G, or NPT) and mounting accessory (LB, FA, TC, etc.). Because this specific SKU lacks the -S magnet, it cannot support position sensing; order a magnet-equipped SAI if you need switches. For sizing, the 160 mm bore neighbor offers less force, while stepping up is unnecessary here. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant for load holding. The SAI family also adds the SAIF self-valve option, though only for bores 32-100.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X175
- ✓ 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 SI200X175 FAQ
Yes, the SI200X175 is discontinued. The direct replacement is the AirTAC SAI200X175. It is dimensionally interchangeable per ISO 15552, matching the 200 mm bore, 175 mm stroke, force, G3/4 port, and mounting interface.
This double-acting cylinder operates at 30-500 mm/s. It provides 15708 N push and 15080 N pull at 0.5 MPa, 21991 N push at 0.7 MPa, and a theoretical max of 3204 kgf at 1.0 MPa. It uses a G3/4 port.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X175
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X175 replacement — usually within 7-8 hours.