This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X520H, 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 SI200X520H
The AirTAC SI200 Standard Cylinder SI200X520H is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 520mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X520H, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke520 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X520H
- 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 SI200X520H
The AirTAC SI200X520H is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 520mm stroke. Built for high temperatures with a Viton H seal (0 to 150 C), it delivers 15708 N push at 0.5 MPa via a G3/4 port. Because this legacy SKU lacks a magnet, it cannot accept position switches. AirTAC replaced it with the SAI200X520H.
The SAI200X520H is a direct replacement sharing the exact ISO 15552 mounting interface, M36x2 thread, and 3204 kgf max force. The upgrade introduces a two-piece Y-shaped piston seal for low start-up pressure.
Airtac SI200 Standard Cylinder SI200X520H Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X520H |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X520H |
| Bore size | Ø200 mm |
| Stroke | 520 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 SAI200X520H 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 SAI200X520H 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 SI200X520H
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×520 | 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 SI200X520H Is Used
Heavy Stamp Pressing
Drives large forming dies requiring 21991 N push at 0.7 MPa, utilizing the 50mm adjustable cushion to halt the 520mm travel smoothly.
Pallet Lift Stations
Lifts heavy industrial pallets at 30-500 mm/s, relying on external guides to manage side-load on the extended 520mm stroke.
Replacing the Airtac SI200 Standard Cylinder SI200X520H with the SAI200X520H
To replace the discontinued SI200X520H, order the SAI200X520H. It drops into existing fixtures via the identical ISO 15552 mounting interface, 200mm bore, 520mm stroke, and G3/4 port. Confirm your mounting accessory (LB foot, FA flange, or TC trunnion) and note this non-magnetic SKU cannot hold a sensor; if sensing is needed, specify an SAI with a magnet. For load holding, a standard cylinder drifts on air loss—the cushion only decelerates—so add an external rod lock, pilot check valve, or use the SAIL/BSAI lock variant. With a 520mm stroke, use external guides to prevent rod bending. If downsizing, a 160mm bore yields 10053 N push at 0.5 MPa.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X520H
- ✓ 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 SI200X520H FAQ
Yes, the SI200X520H is discontinued. The direct replacement is the SAI200X520H. It shares the same ISO 15552 mounting interface, 200mm bore, 520mm stroke, output force, and G3/4 port, fitting existing fixtures perfectly.
This double-acting cylinder operates at 30-500 mm/s. Force outputs 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; with a theoretical max of 3204 kgf at 1.0 MPa. It uses a G3/4 port.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X520H
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X520H replacement — usually within 7-8 hours.