This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X170, 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 SI200X170
The AirTAC Airtac SI200 Standard Cylinder SI200X170 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 SAI200X170, 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 → SAI200X170
- 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 SI200X170
The AirTAC SI200X170 is a discontinued double-acting ISO 15552 profile cylinder delivering 15708 N push force at 0.5 MPa through a 200 mm bore and 170 mm stroke. It is superseded by the SAI200X170 direct replacement, retaining the exact G3/4 port, M36x2 rod thread, and mounting interface.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and longevity. Note this non-magnet SKU cannot accept a sensor; legacy CS1-B/DS1-B switches only fit the -S variant.
Airtac SI200 Standard Cylinder SI200X170 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X170 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X170 |
| 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 SAI200X170 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 SAI200X170 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 SI200X170
| 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 SI200X170 Is Used
Heavy Press Forming
Drives large stamping and forming dies requiring sustained high force over a 170 mm travel distance.
Pallet Lift Actuation
Actuates heavy-duty lifting platforms where the 801 kg vertical lift capacity handles loaded pallets securely.
Industrial Clamp Press
Clamps large fabricated steel components in welding fixtures utilizing the 15708 N push force.
Replacing the Airtac SI200 Standard Cylinder SI200X170 with the SAI200X170
To replace the SI200X170, order the SAI200X170 ensuring the ISO 15552 mounting interface, 200 mm bore, 170 mm stroke, G3/4 port, and M36x2 thread match your fixture. If less force is acceptable, a 160 mm bore yields 10053 N push at 0.5 MPa; stepping up is not possible as 200 mm is the maximum. This non-magnet version cannot host a sensor. Because the 170 mm stroke is under 300 mm, side-load rod-bending risks are minimal, but always guide the load. The air cushion only decelerates; it does not hold load on air loss. For secure holding, specify the SAIL or BSAI lock variant, or use an external pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X170
- ✓ 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 SI200X170 FAQ
Yes, the SI200X170 is discontinued. The direct replacement is the SAI200X170. It is dimensionally interchangeable per ISO 15552, maintaining the same 200 mm bore, 170 mm stroke, force output, G3/4 port, and mounting accessories.
This double-acting cylinder features a G3/4 port. The 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 theoretical maximum of 3204 kgf at 1.0 MPa. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X170
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X170 replacement — usually within 7-8 hours.