This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX65, 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 SI200BX65
The AirTAC Airtac SI200 Standard Cylinder SI200BX65 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 65mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200BX65, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke65 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200BX65
- 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 SI200BX65
The AirTAC SI200BX65 is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 65 mm stroke, delivering 15708 N push force at 0.5 MPa through its G3/4 port. AirTAC replaced this end-of-life unit with the SAI200BX65, a direct replacement sharing the exact same ISO 15552 mounting interface, stroke, output force, and accessories.
The SAI upgrade features a modernized piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. Note that this specific SKU lacks a magnet and cannot support position sensing, and being a plain cylinder, it requires an external rod lock or pilot check valve to hold loads securely.
Airtac SI200 Standard Cylinder SI200BX65 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200BX65 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX65 |
| Bore size | Ø200 mm |
| Stroke | 65 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 SAI200BX65 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 SAI200BX65 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 SI200BX65
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×65 | 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 SI200BX65 Is Used
Heavy Press Operations
Drives massive forming and stamping presses requiring up to 15708 N of thrust at 0.5 MPa, utilizing the short 65 mm stroke for rapid high-force cycles.
Industrial Lift Gates
Actuates robust material lift gates and heavy elevators, safely managing vertical loads up to 801 kg when paired with external pilot check valves.
Large Mold Clamping
Secures oversized injection molds and heavy industrial fixtures, relying on the 200 mm bore's immense output and rigid ISO 15552 profile barrel.
Replacing the Airtac SI200 Standard Cylinder SI200BX65 with the SAI200BX65
To replace the discontinued SI200BX65, order the SAI200BX65 and verify your ISO 15552 mounting interface, G3/4 port thread, and M36x2 rod-end connections. Because this SKU lacks the -S magnet, it cannot accommodate CS1-B or DS1-B sensors; if position detection is required, switch to a magnet-equipped SAI variant. At 0.5 MPa this 200 mm bore generates 15708 N of thrust; if you need less force, step down to a 160 mm bore, or step up to a larger custom setup if more is required. Remember that a standard cylinder drifts without live air—the 50 mm adjustable cushions only decelerate the stroke end—so integrate an external pilot-operated check valve or explore the SAIL or BSAI lock variants for rigid load holding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200BX65
- ✓ 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 SI200BX65 FAQ
Yes, the AirTAC SI200BX65 is discontinued. The direct replacement is the SAI200BX65. It is dimensionally interchangeable per ISO 15552, retaining the same 200 mm bore, 65 mm stroke, G3/4 port, and mounting interface.
Operating at 30-500 mm/s, it delivers 15708 N push and 15080 N pull at 0.5 MPa. At 0.7 MPa push is 21991 N, and 28274 N at 0.9 MPa. The theoretical maximum force is 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200BX65
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200BX65 replacement — usually within 7-8 hours.