This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X40TC, 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 SI200X40TC
The AirTAC SI200 Standard Cylinder SI200X40TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 40mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X40TC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke40 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X40TC
- 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 SI200X40TC
The AirTAC SI200X40TC is a discontinued double-acting ISO 15552 profile cylinder engineered for heavy thrust, delivering a push force of 15708 N at 0.5 MPa through its 200 mm bore and 40 mm stroke. It features a 40 mm carbon steel rod, M36x2 thread, and a G3/4 air port. As an end-of-line unit, it is directly superseded by the SAI200X40TC direct replacement, which preserves the exact ISO 15552 mounting interface, force output, and TC trunnion accessory.
Because this specific SKU lacks the -S magnet suffix, it cannot accept position sensors like the legacy CS1-B or DS1-B switches. The SAI upgrade introduces a two Y-shaped one-way piston seal for lower start-up pressure and longer life.
Airtac SI200 Standard Cylinder SI200X40TC Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X40TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X40TC |
| Bore size | Ø200 mm |
| Stroke | 40 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 SAI200X40TC 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 SAI200X40TC 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 SI200X40TC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×40 | 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 SI200X40TC Is Used
Heavy Press Operations
Drives large stamping and forming tools requiring sustained high force over a short 40 mm travel distance.
Industrial Clamp Systems
Secures massive fabricated steel components into fixed jigs prior to heavy welding or machining.
Rigid Blocking Actuators
Acts as a robust pneumatic stop or blocking pin in high-tonnage materials handling environments.
Replacing the Airtac SI200 Standard Cylinder SI200X40TC with the SAI200X40TC
To replace the discontinued SI200X40TC, order the SAI200X40TC ensuring the TC trunnion mount, 200 mm bore, 40 mm stroke, and G3/4 port match your fixture. This SKU has no magnet, so it cannot support sensing; if switches are needed, specify an SAI200X40TCS. When sizing, note the 0.5 MPa push force is 15708 N; if you need less force, the 160 mm bore offers 10053 N. A plain cylinder drifts on air loss—the cushion only decelerates—so for load holding use an external pilot check valve or the SAIL/BSAI lock variants. The 40 mm stroke is short, keeping side-load risks minimal.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X40TC
- ✓ 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 SI200X40TC FAQ
Yes, the AirTAC SI200X40TC is discontinued. The direct replacement is the SAI200X40TC. It matches the ISO 15552 mounting interface, 200 mm bore, 40 mm stroke, 15708 N force, G3/4 port, and TC trunnion mount, fitting existing fixtures perfectly.
The 200 mm bore uses a G3/4 air 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. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X40TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X40TC replacement — usually within 7-8 hours.