This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX950, 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 SI200BX950
The AirTAC Airtac SI200 Standard Cylinder SI200BX950 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 950mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200BX950, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke950 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200BX950
- 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 SI200BX950
The AirTAC SI200BX950 is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 950mm stroke. Delivering 15708 N push force at 0.5 MPa via a G3/4 port, it is directly replaced by the SAI200BX950. This direct successor matches the exact interface, bore, stroke, force, and mounting, dropping into existing fixtures seamlessly.
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 and cannot take a sensor, but the SUS304 stainless rod option resists corrosion.
Airtac SI200 Standard Cylinder SI200BX950 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200BX950 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX950 |
| Bore size | Ø200 mm |
| Stroke | 950 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 SAI200BX950 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 SAI200BX950 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 SI200BX950
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×950 | 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 SI200BX950 Is Used
Heavy Press Systems
Drives large industrial presses requiring 15708 N of push force at 0.5 MPa, utilizing the 950mm stroke for deep drawing operations.
Automated Assembly Lines
Actuates massive jigs and heavy-duty fixtures on automated lines, relying on the robust 40mm carbon or SUS304 stainless rod.
Replacing the Airtac SI200 Standard Cylinder SI200BX950 with the SAI200BX950
To replace the SI200BX950, order the SAI200BX950, confirming the ISO 15552 mounting interface, 200mm bore, 950mm stroke, G3/4 port, and M36x2 thread. Because this non-magnet SKU cannot accept a switch, sensing requires external methods. At 950mm, prevent rod bending by using external guides to manage side loads. For load holding on air loss, note the cushion only decelerates; use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. Neighbouring bores: 160mm offers 10053 N [email protected], while 200mm provides 21991 N [email protected].
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200BX950
- ✓ 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 SI200BX950 FAQ
Yes, the SI200BX950 is discontinued. The direct replacement is the SAI200BX950. It is dimensionally interchangeable per ISO 15552, matching the 200mm bore, 950mm stroke, G3/4 port, and mounting fixtures perfectly.
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 28274 N push at 0.9 MPa. The theoretical maximum force is 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200BX950
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200BX950 replacement — usually within 7-8 hours.