This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX150, 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 SI200BX150
The AirTAC Airtac SI200 Standard Cylinder SI200BX150 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 150mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200BX150, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke150 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200BX150
- 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 SI200BX150
The AirTAC SI200BX150 is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 150 mm stroke. Delivering 15708 N push force at 0.5 MPa, it features a 40 mm carbon steel rod, M36x2 thread, and 50 mm adjustable cushions. The direct replacement is the SAI200BX150, sharing the exact ISO 15552 mounting interface, G3/4 port, and output force.
This SKU uses a -B SUS304 stainless rod for corrosion resistance and lacks a magnet, so it cannot accept CS1-B/DS1-B sensors. The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure. Note that plain cylinders drift without live air; use a SAIL lock or external pilot check valve for load holding.
Airtac SI200 Standard Cylinder SI200BX150 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200BX150 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX150 |
| Bore size | Ø200 mm |
| Stroke | 150 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 SAI200BX150 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 SAI200BX150 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 SI200BX150
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×150 | 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 SI200BX150 Is Used
Heavy Stamping Press
Drives large heavy-duty stamping dies requiring 15708 N push force at 0.5 MPa with robust 50 mm cushions to absorb high kinetic energy.
Large Mold Clamping
Secures oversized injection molds using the SUS304 stainless rod option for corrosion resistance in humid production environments.
Industrial Press Brakes
Provides reliable vertical thrust for bending thick plate steel, safely handling a working load of 9425 N during operation.
Replacing the Airtac SI200 Standard Cylinder SI200BX150 with the SAI200BX150
To replace the SI200BX150, order the SAI200BX150. Confirm the ISO 15552 mounting interface, 200 mm bore, 150 mm stroke, G3/4 port, and -B SUS304 rod. Because this SKU has no -S magnet, it cannot support position sensing; if switches are needed, specify an SAI model with the magnet option and use current AirTAC switches. Sizing both ways: the 160 mm bore neighbor offers less force, while the 200 mm bore provides 15708 N push at 0.5 MPa. For load holding on air loss, do not rely on the 50 mm cushions; specify a SAIL air-released lock, BSAI clamp-lock, or an external pilot check valve. The SAI family also adds SAIF valve variants for smaller bores.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200BX150
- ✓ 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 SI200BX150 FAQ
Yes, the AirTAC SI200BX150 is discontinued. The direct replacement is the SAI200BX150. It is dimensionally interchangeable per ISO 15552, retaining the same 200 mm bore, 150 mm stroke, G3/4 port, and mounting interface.
It has a G3/4 air port. Force 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. Speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200BX150
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200BX150 replacement — usually within 7-8 hours.