This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX135, 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 SI200BX135
The AirTAC Airtac SI200 Standard Cylinder SI200BX135 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 135mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200BX135, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke135 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200BX135
- 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 SI200BX135
The AirTAC SI200BX135 is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 135mm stroke. It delivers 15708 N push force at 0.5 MPa. The direct replacement is the SAI200BX135, which matches the exact bore, stroke, 3204 kgf max force, G3/4 port, and ISO 15552 mounting interface for existing fixtures.
This specific SKU features a SUS304 stainless steel piston rod and lacks a magnet, meaning it cannot accept a position switch. The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure.
Airtac SI200 Standard Cylinder SI200BX135 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200BX135 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX135 |
| Bore size | Ø200 mm |
| Stroke | 135 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 SAI200BX135 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 SAI200BX135 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 SI200BX135
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×135 | 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 SI200BX135 Is Used
Heavy Press Forming
Generates up to 3204 kgf at 1.0 MPa for stamping and forming robust metal components in automated fabrication lines.
Large Payload Elevation
Provides a safe vertical lift of approximately 801 kg, ideal for raising heavy machinery platens or bulk material hoppers.
Industrial Clamp Systems
Secures oversized molds or heavy castings during machining, utilizing the SUS304 rod for corrosion resistance in harsh environments.
Replacing the Airtac SI200 Standard Cylinder SI200BX135 with the SAI200BX135
To replace the SI200BX135, order the SAI200BX135 and verify the ISO 15552 mounting interface, 200mm bore, 135mm stroke, and G3/4 port. Because this SKU lacks a magnet (-S), it cannot support legacy CS1-B/DS1-B sensors; if sensing is needed, specify a magnet on the new SAI. For load holding, note that a standard cylinder drifts on air loss—the 50mm adjustable cushion only decelerates. Use an external pilot check valve or the SAIL/BSAI lock variants. If downsizing, a 160mm bore yields 10053 N at 0.5 MPa; if upsizing is impossible, 1.0 MPa yields 3204 kgf.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200BX135
- ✓ 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 SI200BX135 FAQ
Yes, the SI200BX135 is discontinued. The direct replacement is the SAI200BX135. It is dimensionally interchangeable per ISO 15552, retaining the same 200mm bore, 135mm stroke, output force, G3/4 port, and mounting accessories.
This double-acting cylinder has a G3/4 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 maximum of 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200BX135
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200BX135 replacement — usually within 7-8 hours.