This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX180TC, 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 SI200BX180TC
The AirTAC SI200 Standard Cylinder SI200BX180TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 180mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200BX180TC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke180 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200BX180TC
- 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 SI200BX180TC
The AirTAC SI200BX180TC is a discontinued double-acting ISO 15552 profile cylinder. Built with an extruded aluminum barrel, it delivers 15708 N push force at 0.5 MPa. Because this legacy unit is end-of-life, you should order the direct replacement: the SAI200BX180TC. It preserves the 200 mm bore, 180 mm stroke, TC trunnion mount, and G3/4 port size, dropping directly into existing fixtures.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. This SI200BX180TC SKU lacks a magnet (-S) and therefore cannot accept position switches like the legacy CS1-B/DS1-B sensors. Note that a plain cylinder drifts without live air; the 50 mm cushions only decelerate near stroke end.
Airtac SI200 Standard Cylinder SI200BX180TC Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200BX180TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX180TC |
| Bore size | Ø200 mm |
| Stroke | 180 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 SAI200BX180TC 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 SAI200BX180TC 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 SI200BX180TC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×180 | 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 SI200BX180TC Is Used
Heavy Stamping Press
Drives large heavy-duty stamping dies with 15708 N push force at 0.5 MPa, utilizing the robust 40 mm piston rod.
Industrial Clamp Rig
Secures large fabricated steel frames using the TC trunnion mount to accommodate pivoting angular alignment.
Replacing the Airtac SI200 Standard Cylinder SI200BX180TC with the SAI200BX180TC
To replace the discontinued SI200BX180TC, order the SAI200BX180TC. Verify the ISO 15552 TC trunnion mounting interface, the 180 mm stroke, and the G3/4 port. This unit has a SUS304 stainless steel rod (-B) for corrosion resistance, but because it lacks a magnet, it cannot use sensors. If you need more force than the 15708 N at 0.5 MPa, the next size up is the 250 mm bore; if less force is needed, step down to a 160 mm bore. For load holding on air loss, a plain cylinder drifts, so add an external rod lock or pilot check valve, or switch to the SAIL or BSAI lock variants. Since the 180 mm stroke is under 300 mm, severe rod bending is less of a concern, but always guide the load to prevent side-loading.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200BX180TC
- ✓ 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 SI200BX180TC FAQ
Yes, the SI200BX180TC is discontinued. The direct replacement is the SAI200BX180TC. It is dimensionally interchangeable per ISO 15552, maintaining the same 200 mm bore, 180 mm stroke, TC mount, and G3/4 port.
It features a G3/4 port. The force ratings are: 15708 N push and 15080 N pull at 0.5 MPa, 21991 N push at 0.7 MPa, and a theoretical maximum of 3204 kgf at 1.0 MPa. The rod thread is M36x2.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200BX180TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200BX180TC replacement — usually within 7-8 hours.