This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX260, 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 SI200BX260
The AirTAC Airtac SI200 Standard Cylinder SI200BX260 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 260mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200BX260, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke260 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200BX260
- 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 SI200BX260
The AirTAC SI200BX260 is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 260 mm stroke. Delivering 15708 N push force at 0.5 MPa, it features a 40 mm SUS304 stainless piston rod, M36x2 thread, and a G3/4 air port. The direct replacement is the SAI200BX260, matching the exact ISO 15552 mounting interface, bore, stroke, output force, and port size.
Because this SKU lacks a magnet, it cannot accept a position switch. The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. For load holding, note that the 50 mm air cushions only decelerate; they do not lock. Use the SAIL or BSAI lock variants, or an external pilot check valve.
Airtac SI200 Standard Cylinder SI200BX260 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200BX260 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX260 |
| Bore size | Ø200 mm |
| Stroke | 260 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 SAI200BX260 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 SAI200BX260 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 SI200BX260
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×260 | 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 SI200BX260 Is Used
Heavy Press Systems
Generates 21991 N at 0.7 MPa for high-tonnage forming, stamping, and heavy-duty press operations.
Robotic Clamping
Provides rigid 3204 kgf maximum holding force for securing large industrial molds or heavy fabricated parts.
Replacing the Airtac SI200 Standard Cylinder SI200BX260 with the SAI200BX260
To replace the discontinued SI200BX260, order the SAI200BX260. Verify your ISO 15552 mounting interface, 260 mm stroke, and G3/4 port. This unit has a SUS304 stainless rod (B suffix) and no magnet, meaning it cannot support legacy CS1-B/DS1-B sensors; add the SAI -S suffix if sensing is needed. If you need less force, a 160 mm bore yields 10053 N push at 0.5 MPa; for more power, the 200 mm bore is the largest standard option at 15708 N. For this 260 mm stroke, ensure adequate guide support to prevent rod bending and side loads. The cylinder operates at 30-500 mm/s. If the load must be held without live air, select the SAIL or BSAI lock variant, or use an external rod lock.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200BX260
- ✓ 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 SI200BX260 FAQ
Yes, the AirTAC SI200BX260 is discontinued and end-of-life. The direct replacement is the SAI200BX260. It is a true ISO 15552 profile cylinder that matches the original 200 mm bore, 260 mm stroke, 15708 N force, G3/4 port, and mounting dimensions, fitting your existing fixtures perfectly.
This double-acting cylinder has a G3/4 air port. It delivers 15708 N push and 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. It operates at 30-500 mm/s with a 50 mm adjustable cushion at both ends.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200BX260
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200BX260 replacement — usually within 7-8 hours.