This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X1050SFA, 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 SI200X1050SFA
The AirTAC SI200 Standard Cylinder SI200X1050SFA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 1050mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X1050SFA, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke1050 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X1050SFA
- 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 SI200X1050SFA
The AirTAC SI200X1050SFA is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 1050mm stroke. It delivers 15708 N push force at 0.5 MPa and features a G3/4 port. The direct replacement is the SAI200X1050SFA, matching the exact interface, force, and FA flange mounting.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. The SAI family also adds SAIL and BSAI lock variants the SI lacked.
Airtac SI200 Standard Cylinder SI200X1050SFA Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X1050SFA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X1050SFA |
| Bore size | Ø200 mm |
| Stroke | 1050 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 SAI200X1050SFA 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 SAI200X1050SFA 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 SI200X1050SFA
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×1050 | 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 SI200X1050SFA Is Used
Heavy Stamp Press
Drives large metalforming presses requiring 15708 N of push force at 0.5 MPa to shape thick plate stock reliably.
Bulk Material Divert
Shifts heavy aggregate or ore diverters on mining conveyors, utilizing the 50mm adjustable air cushions to stop massive inertia.
Replacing the Airtac SI200 Standard Cylinder SI200X1050SFA with the SAI200X1050SFA
To replace this SI unit, order the SAI200X1050SFA. Confirm the ISO 15552 mounting interface, the 200mm bore, the 1050mm stroke, the G3/4 port, and the FA flange accessory. The built-in magnet (-S) works with legacy CS1-B/DS1-B sensors, though the SAI uses current AirTAC switches. Because this is a 1050mm stroke, use external guides to prevent rod bending and side-load damage. If sizing down, a 160mm bore yields 10053 N at 0.5 MPa. Note that a plain cylinder drifts on air loss; the cushion only decelerates. For held loads, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X1050SFA
- ✓ 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 SI200X1050SFA FAQ
Yes, the SI200X1050SFA is discontinued. The direct replacement is the SAI200X1050SFA. It is dimensionally interchangeable per ISO 15552, retaining the same 200mm bore, 1050mm stroke, force, G3/4 port, and FA flange mounting.
It features a G3/4 port and a 40mm rod. Force output is 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 maximum theoretical force of 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X1050SFA
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X1050SFA replacement — usually within 7-8 hours.