This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X250TC, 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 SI200X250TC
The AirTAC SI200 Standard Cylinder SI200X250TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 250mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X250TC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke250 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X250TC
- 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 SI200X250TC
The AirTAC SI200X250TC is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 250 mm stroke. It delivers 15708 N push force at 0.5 MPa via a G3/4 port. This legacy unit is replaced by the SAI200X250TC, a direct alternative retaining the same interface, TC trunnion mount, and M36x2 rod thread.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and extended life. Note this non-magnet SKU cannot accept a sensor; further SAI family options include SAIL and BSAI lock variants absent from the SI line.
Airtac SI200 Standard Cylinder SI200X250TC Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X250TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X250TC |
| Bore size | Ø200 mm |
| Stroke | 250 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 SAI200X250TC 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 SAI200X250TC 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 SI200X250TC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×250 | 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 SI200X250TC Is Used
Heavy Press Stamping
Drives large metal forming presses requiring 15708 N of thrust at 0.5 MPa to shape thick steel plates.
Mold Clamping Station
Secures heavy industrial injection molds via the TC trunnion mount, handling high kinetic energy with 50 mm cushions.
Replacing the Airtac SI200 Standard Cylinder SI200X250TC with the SAI200X250TC
To replace the SI200X250TC, order the SAI200X250TC ensuring the TC trunnion mounting, 250 mm stroke, and G3/4 port match your fixture. This non-magnet version cannot hold a position switch; if sensing is required, select an SAI model with the S magnet suffix and current AirTAC switches. For sizing, the 200 mm bore yields 15708 N push at 0.5 MPa; dropping to a 160 mm bore reduces push to 10053 N. A plain cylinder drifts on air loss—the cushion only decelerates—so for load holding consider the SAIL or BSAI lock variants, or an external pilot check valve. At 250 mm stroke side-load is minimal, but always guide the rod to prevent bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X250TC
- ✓ 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 SI200X250TC FAQ
Yes, the SI200X250TC is discontinued. The direct replacement is the SAI200X250TC. It shares the identical ISO 15552 mounting interface, 200 mm bore, 250 mm stroke, G3/4 port, and TC trunnion mount, fitting directly into existing machinery.
The 200 mm bore uses a G3/4 air port and features a 40 mm rod with an M36x2 thread. Force output is 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.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X250TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X250TC replacement — usually within 7-8 hours.