This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX15, 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 SI200BX15
The AirTAC Airtac SI200 Standard Cylinder SI200BX15 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 15mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200BX15, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke15 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200BX15
- 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 SI200BX15
The AirTAC SI200BX15 is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 15mm stroke. It delivers 15708 N push force at 0.5 MPa through a G3/4 port. AirTAC replaced this legacy unit with the SAI200BX15, a direct upgrade retaining the exact interface, bore, stroke, force, and mounting. The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. This specific SKU uses a SUS304 stainless steel rod (-B) for corrosion resistance and lacks a magnet, meaning it cannot accept position sensors.
The SAI family also introduces lock and valve variants the SI lacked, including the SAIL air-released lock, SAIF built-in valve, and BSAI clamp-lock. Note that a plain cylinder drifts on air loss; the 50mm adjustable cushions only decelerate near stroke ends, so use a lock variant or pilot check valve for load holding.
Airtac SI200 Standard Cylinder SI200BX15 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200BX15 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX15 |
| Bore size | Ø200 mm |
| Stroke | 15 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 SAI200BX15 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 SAI200BX15 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 SI200BX15
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×15 | 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 SI200BX15 Is Used
Heavy Press Operations
Drives high-tonnage forming and stamping presses where the 21991 N push force at 0.7 MPa is required for deforming thick materials.
Corrosive Environment Actuation
Actuates heavy-duty doors or gates in washdown or chemical zones utilizing the SUS304 stainless piston rod for rust prevention.
Replacing the Airtac SI200 Standard Cylinder SI200BX15 with the SAI200BX15
To replace the discontinued SI200BX15, order the SAI200BX15. Confirm the ISO 15552 mounting interface, 200mm bore, 15mm stroke, G3/4 port, and your specific mounting accessory. This SKU includes a SUS304 stainless rod (-B) and no magnet, so it cannot accept CS1-B/DS1-B sensors; if sensing is needed, specify an SAI with the -S magnet option. When sizing, the 200mm bore yields 15708 N push at 0.5 MPa; if you need less force, step down to a 160mm bore (10053 N). For load holding on air loss, remember the cushion only decelerates and does not lock the piston—select the SAIL or BSAI lock variant, or use an external pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200BX15
- ✓ 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 SI200BX15 FAQ
Yes, the SI200BX15 is discontinued. The direct replacement is the SAI200BX15. It is dimensionally interchangeable per ISO 15552, matching the 200mm bore, 15mm stroke, 15708 N force, G3/4 port, and mounting fixtures.
The 200mm bore uses a G3/4 port. At 0.5 MPa it provides 15708 N push and 15080 N pull force. At 0.7 MPa push is 21991 N, and at 0.9 MPa it is 28274 N. The theoretical maximum force is 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200BX15
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200BX15 replacement — usually within 7-8 hours.