This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X140, 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 SI200X140
The AirTAC Airtac SI200 Standard Cylinder SI200X140 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 140mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X140, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke140 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X140
- 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 SI200X140
The AirTAC SI200X140 is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 140 mm stroke, delivering 15708 N of push force at 0.5 MPa through its G3/4 port. AirTAC replaced this end-of-line unit with the SAI200X140, a direct upgrade retaining the exact interface, M36x2 rod thread, and 50 mm cushions.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and longevity. This non-magnet SKU cannot host a sensor, and for load holding you must add an external rod lock, as cushions only decelerate.
Airtac SI200 Standard Cylinder SI200X140 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X140 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X140 |
| Bore size | Ø200 mm |
| Stroke | 140 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 SAI200X140 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 SAI200X140 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 SI200X140
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×140 | 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 SI200X140 Is Used
Heavy Press Tonnage
Drives large stamping and forming presses requiring up to 28274 N of push force at 0.9 MPa for deforming thick plate metal.
Large Mold Actuation
Shifts substantial injection mold bases or heavy tooling fixtures using the 40 mm carbon steel rod and 50 mm end cushions.
Replacing the Airtac SI200 Standard Cylinder SI200X140 with the SAI200X140
To replace the SI200X140, order the SAI200X140 and verify the ISO 15552 mounting interface, 200 mm bore, 140 mm stroke, G3/4 port, and accessory type. Because this specific SKU lacks the -S magnet, it cannot accept CS1-B or DS1-B sensors. If you need to downsize, the 160 mm bore offers 10053 N push at 0.5 MPa; if scaling up is impossible, this 200 mm bore hits 21991 N at 0.7 MPa. Note that a plain cylinder drifts on air loss—the cushion only decelerates—so use an external pilot check valve or the SAIL/BSAI lock variants for held loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X140
- ✓ 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 SI200X140 FAQ
Yes, the SI200X140 is discontinued. The direct replacement is the SAI200X140, which shares the same ISO 15552 mounting interface, 200 mm bore, 140 mm stroke, output force, G3/4 port, and accessories.
It features a G3/4 port and delivers 15708 N push / 15080 N pull at 0.5 MPa, 21991 N push at 0.7 MPa, and a theoretical max of 3204 kgf at 1.0 MPa. It operates at 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X140
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X140 replacement — usually within 7-8 hours.