This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX140, 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 SI200BX140
The AirTAC Airtac SI200 Standard Cylinder SI200BX140 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 SAI200BX140, 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 → SAI200BX140
- 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 SI200BX140
The AirTAC SI200BX140 is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 140mm stroke. It delivers 15708 N push and 15080 N pull at 0.5 MPa, operating at 30-500 mm/s through a G3/4 port with a 50 mm adjustable air cushion. The direct replacement is the SAI200BX140, matching the interface, force, and mounting.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. This SKU lacks a magnet, so it cannot take a sensor; legacy -S versions used CS1-B/DS1-B switches. For high heat, Viton H seals raise the limit to 150 C, and a -B SUS304 rod resists corrosion.
Airtac SI200 Standard Cylinder SI200BX140 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200BX140 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX140 |
| 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 SAI200BX140 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 SAI200BX140 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 SI200BX140
| 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 SI200BX140 Is Used
Heavy Press Forming
Applies up to 28274 N of push force at 0.9 MPa for stamping or forming large metal components in automated lines.
Industrial Clamp
Secures large fabricated weldments or molds during machining, utilizing the 15080 N pull force for rigid hold-down.
Replacing the Airtac SI200 Standard Cylinder SI200BX140 with the SAI200BX140
To replace the SI200BX140, order the SAI200BX140. Verify the ISO 15552 mounting interface, 200mm bore, 140mm stroke, G3/4 port (PT/G/NPT thread), and your mounting accessory. This non-magnet SKU cannot hold a position switch. If you need load holding on air loss, note the cushion only decelerates; you must add an external rod lock, pilot check valve, or use the SAIL/BSAI lock variants. For sizing, the 160mm bore offers 10053 N [email protected], while the 200mm bore hits 21991 N at 0.7 MPa. Since the stroke is under 300mm, side-load rod-bending risk is low, but always guide the load.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200BX140
- ✓ 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 SI200BX140 FAQ
Yes, the SI200BX140 is discontinued. The direct replacement is the SAI200BX140. It is dimensionally interchangeable per the ISO 15552 mounting interface, retaining the same 200mm bore, 140mm stroke, force, G3/4 port, and mounting accessories.
It features a G3/4 air port. The thrust ratings are: 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.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200BX140
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200BX140 replacement — usually within 7-8 hours.