This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX175, 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 SI200BX175
The AirTAC Airtac SI200 Standard Cylinder SI200BX175 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 SAI200BX175, 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 → SAI200BX175
- 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 SI200BX175
The AirTAC SI200BX175 is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 175 mm stroke. Delivering 15708 N push at 0.5 MPa, it is replaced by the SAI200BX175. This direct successor retains the G3/4 port, M36x2 thread, and 50 mm cushions.
The SAI upgrade features two Y-shaped piston seals for low start-up pressure. This SKU lacks a magnet, so it cannot take a sensor. For load holding, use a pilot check valve, as cushions only decelerate.
Airtac SI200 Standard Cylinder SI200BX175 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200BX175 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX175 |
| 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 SAI200BX175 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 SAI200BX175 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 SI200BX175
| 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 SI200BX175 Is Used
Heavy Stamping
Generates 21991 N at 0.7 MPa to drive large presses and form heavy-gauge metal components securely.
Injection Molding
Provides robust clamping force for large molds, utilizing the 50 mm adjustable cushions to halt the 40 mm rod smoothly.
Pallet Handling
Shifts heavy loaded pallets with a theoretical max output of 3204 kgf, ideal for high-capacity automated logistics.
Replacing the Airtac SI200 Standard Cylinder SI200BX175 with the SAI200BX175
To replace the SI200BX175, order the SAI200BX175. Verify the ISO 15552 mounting interface, G3/4 port, and accessories. This non-magnetic SKU cannot accept CS1-B/DS1-B sensors. If sizing down, the 160 mm bore yields 10053 N push @0.5 MPa; if sizing up, no larger standard bore exists. Note that a plain cylinder drifts on air loss—cushions only decelerate—so add an external rod lock or pilot check valve for holding, or specify the SAIL or BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200BX175
- ✓ 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 SI200BX175 FAQ
Yes, the AirTAC SI200BX175 is discontinued. The direct replacement is the SAI200BX175. It is dimensionally interchangeable per ISO 15552, keeping the same 200 mm bore, 175 mm stroke, force, G3/4 port, and mounting interface.
It features a G3/4 air 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. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200BX175
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200BX175 replacement — usually within 7-8 hours.