This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X170S, 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 SI200X170S
The AirTAC SI200 Standard Cylinder SI200X170S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 170mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X170S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke170 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X170S
- 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 SI200X170S
The AirTAC SI200X170S is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 170mm stroke. Delivering 15708 N push force at 0.5 MPa, it features a G3/4 port and an integrated magnet for legacy CS1-B/DS1-B sensors. AirTAC replaced this EOL unit with the SAI200X170S, a direct upgrade retaining the exact ISO 15552 mounting interface, bore, stroke, and output force.
The SAI replacement introduces an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The SAI family also adds SAIL and BSAI lock variants the SI lacked, while rod options span carbon steel to SUS304.
Airtac SI200 Standard Cylinder SI200X170S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X170S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X170S |
| Bore size | Ø200 mm |
| Stroke | 170 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 SAI200X170S 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 SAI200X170S 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 SI200X170S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×170 | 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 SI200X170S Is Used
Heavy Stamping Press
Drives large heavy-duty stamping dies requiring 15708 N of push force at 0.5 MPa, utilizing the 170mm stroke for deep draw operations.
Industrial Clamp Rig
Secures massive fabricated steel beams during welding, using the G3/4 port for high-volume air flow and stable clamping pressure.
Replacing the Airtac SI200 Standard Cylinder SI200X170S with the SAI200X170S
To replace this SI200X170S, order the SAI200X170S and confirm the ISO 15552 mounting fixture, 200mm bore, 170mm stroke, and G3/4 port. Retain your mounting accessory (LB, FA, TC, etc.) and verify the -S magnet for current AirTAC switches. If you need more force, the next size up provides higher thrust; if less, step down a bore and check the 0.5 MPa ratings. Note that a plain cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. Since the 170mm stroke is under 300mm, rod bending side-load risks are minimal, but always guide the load.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X170S
- ✓ 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 SI200X170S FAQ
Yes, the SI200X170S is discontinued. The direct replacement is the SAI200X170S. It is dimensionally interchangeable per ISO 15552, matching the 200mm bore, 170mm stroke, G3/4 port, and mounting interface.
It delivers 15708 N push and 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. Operating speed is 30-500 mm/s, with a 50mm adjustable air cushion at both ends.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X170S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X170S replacement — usually within 7-8 hours.