This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X350H, 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 SI200X350H
The AirTAC SI200 Standard Cylinder SI200X350H is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 350mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X350H, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke350 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X350H
- 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 SI200X350H
The AirTAC SI200X350H is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 350mm stroke. Delivering 15708 N push force at 0.5 MPa, it features a G3/4 port and M36x2 rod thread. The direct replacement is the SAI200X350H, matching the interface, force, and port exactly.
This unit includes the -H Viton seal for 0-150 C high-temperature environments. Because it lacks the -S magnet, it cannot accept magnetic switches. The SAI upgrade introduces two Y-shaped one-way piston seals for lower start-up pressure.
Airtac SI200 Standard Cylinder SI200X350H Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X350H |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X350H |
| Bore size | Ø200 mm |
| Stroke | 350 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 SAI200X350H 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 SAI200X350H 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 SI200X350H
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×350 | 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 SI200X350H Is Used
Heavy Stamping
Drives large presses and stamping dies requiring 15708 N of thrust at 0.5 MPa, utilizing the 350mm stroke to fully actuate heavy tooling.
High-Temp Ejectors
Ejects cast or hot-forged parts on production lines. The Viton -H seal sustains 0-150 C environments where standard NBR seals would fail.
Replacing the Airtac SI200 Standard Cylinder SI200X350H with the SAI200X350H
To replace the SI200X350H, order the SAI200X350H. Verify the ISO 15552 mounting interface, 200mm bore, 350mm stroke, G3/4 port, and Viton -H seal. If downsizing, the 160mm bore offers 10053 N [email protected]; if upsizing, note 200mm is the largest standard size. At 1.0 MPa, this bore reaches 3204 kgf. For the 350mm stroke, use external guides to prevent rod bending and side-load wear. This plain cylinder will not hold load without air; use an external pilot check valve or the SAIL/BSAI lock variant for secure holding. Without the -S magnet, position sensing is impossible.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X350H
- ✓ 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 SI200X350H FAQ
Yes, the SI200X350H is discontinued. The direct replacement is the SAI200X350H. It is dimensionally interchangeable per ISO 15552, retaining the same 200mm bore, 350mm stroke, 15708 N force, G3/4 port, and mounting fixtures.
The 200mm bore 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 max force is 3204 kgf at 1.0 MPa. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X350H
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X350H replacement — usually within 7-8 hours.