This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X600, 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.

The AirTAC Airtac SI200 Standard Cylinder SI200X600 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 600mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X600, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI200X600 is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 600 mm stroke. It delivers 15708 N push force at 0.5 MPa via a G3/4 port. The direct replacement is the SAI200X600, matching the exact bore, stroke, force, port and ISO 15552 mounting interface.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure. For sensing, this no-S SKU cannot take a magnetic switch. A Viton H seal option raises heat to 150 C.
| Model | Airtac SI200 Standard Cylinder SI200X600 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X600 |
| Bore size | Ø200 mm |
| Stroke | 600 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 SAI200X600 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
The SAI200X600 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×600 | 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).
Applies up to 21991 N at 0.7 MPa for stamping and forming substantial metal components.
Secures oversized molds during machining, utilizing the 50 mm adjustable cushion to halt momentum.
To replace the SI200X600, order the SAI200X600 keeping the identical 200 mm bore, 600 mm stroke, M36x2 rod thread and ISO 15552 mounting. Confirm your port thread (PT/G/NPT) and mounting accessory (LB, FA, TC, etc.). This no-magnet SKU cannot accept a CS1-B/DS1-B sensor. For sizing, a 160 mm bore yields 10053 N [email protected], while the 200 mm bore hits 21991 N at 0.7 MPa. Note: at 600 mm stroke, prevent rod bending by using an external guide to manage side loads. The cushion only decelerates; use a SAIL lock or pilot check valve to hold loads.
Replacement checklist
Yes, the SI200X600 is discontinued. The direct replacement is the SAI200X600, which shares the identical ISO 15552 mounting interface, 200 mm bore, 600 mm stroke, output force and G3/4 port.
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 a theoretical max of 3204 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X600 replacement — usually within 7-8 hours.