This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X300TC, 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 SI200X300TC
The AirTAC SI200 Standard Cylinder SI200X300TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 300mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X300TC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke300 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X300TC
- 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 SI200X300TC
The AirTAC SI200X300TC is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 300 mm stroke. It delivers 15708 N push force at 0.5 MPa through a G3/4 port. The direct replacement is the SAI200X300TC, retaining the exact TC trunnion mount, M36x2 thread, and 3204 kgf maximum force.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. Because this SKU lacks a magnet, it cannot accept CS1-B/DS1-B sensors. For high heat, Viton H seals raise the limit to 150 C.
Airtac SI200 Standard Cylinder SI200X300TC Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X300TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X300TC |
| Bore size | Ø200 mm |
| Stroke | 300 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 SAI200X300TC 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 SAI200X300TC 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 SI200X300TC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×300 | 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 SI200X300TC Is Used
Heavy Press Systems
Drives large stamping and forming presses requiring up to 28274 N push force at 0.9 MPa.
Massive Payload Lifts
Elevates 801 kg vertical loads using the TC trunnion mount to handle heavy structural pivoting.
Large Mold Handling
Actuates heavy injection molds with a 50 mm adjustable air cushion to soften end-of-stroke impacts.
Replacing the Airtac SI200 Standard Cylinder SI200X300TC with the SAI200X300TC
To replace the SI200X300TC, order the SAI200X300TC and confirm the ISO 15552 TC trunnion interface, 300 mm stroke, and G3/4 port. Sizing down, a 160 mm bore offers 10053 N push at 0.5 MPa; sizing up is not available. Since the stroke is 300 mm, use an external guide to prevent rod bending under side loads. This non-magnet model cannot take a sensor. Air cushions only decelerate; for load holding on air loss, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X300TC
- ✓ 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 SI200X300TC FAQ
Yes, the SI200X300TC is discontinued. The direct replacement is the SAI200X300TC. It is dimensionally interchangeable per ISO 15552, matching the 200 mm bore, 300 mm stroke, G3/4 port, TC mount, and 3204 kgf max force.
It uses a G3/4 port. Force ratings are: push 15708 N and pull 15080 N at 0.5 MPa, push 21991 N at 0.7 MPa, push 28274 N 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 SAI200X300TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X300TC replacement — usually within 7-8 hours.