This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X180TC, 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 SI200X180TC
The AirTAC SI200 Standard Cylinder SI200X180TC 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 SAI200X180TC, 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 → SAI200X180TC
- 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 SI200X180TC
The AirTAC SI200X180TC is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 180 mm stroke. It delivers 15708 N push force at 0.5 MPa. The direct replacement is the SAI200X180TC, matching the interface, TC trunnion mount, G3/4 port, and output force.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure. Note this SKU lacks a magnet, so it cannot accept a CS1-B/DS1-B sensor.
Airtac SI200 Standard Cylinder SI200X180TC Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X180TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X180TC |
| 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 SAI200X180TC 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 SAI200X180TC 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 SI200X180TC
| 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 SI200X180TC Is Used
Heavy Press Forming
Applies up to 21991 N at 0.7 MPa for stamping and forming large metal panels in automotive assembly lines.
Pallet Positioning
Shifts loaded heavy-duty pallets via the TC trunnion mount, absorbing side loads during 180 mm transit.
Industrial Clamp Systems
Secures massive fabricated steel structures during welding, utilizing the 3204 kgf maximum theoretical force.
Replacing the Airtac SI200 Standard Cylinder SI200X180TC with the SAI200X180TC
To replace the SI200X180TC, order the SAI200X180TC. Verify the ISO 15552 TC trunnion mount, 180 mm stroke, and G3/4 port. This non-magnet SKU cannot take a sensor. If stepping down, a 160 mm bore yields 10053 N at 0.5 MPa; stepping up is impossible as 200 mm is the largest. For load holding, a plain cylinder drifts on air loss—the cushion only decelerates. Use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X180TC
- ✓ 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 SI200X180TC FAQ
Yes, the SI200X180TC is discontinued. The direct replacement is the SAI200X180TC. It is dimensionally interchangeable per ISO 15552, retaining the same TC trunnion mount, 200 mm bore, 180 mm stroke, G3/4 port, and output force.
It features a G3/4 port. Force output is 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, and a theoretical max of 3204 kgf at 1.0 MPa. Speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X180TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X180TC replacement — usually within 7-8 hours.