This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX165, 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 SI200AX165
The AirTAC Airtac SI200 Standard Cylinder SI200AX165 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 165mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200AX165, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke165 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200AX165
- 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 SI200AX165
The AirTAC SI200AX165 is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 165mm stroke. Delivering 15708 N push at 0.5 MPa, it features a 40mm rod, M36x2 thread, and a G3/4 port. The direct replacement is the SAI200AX165, matching the bore, stroke, force, port, and ISO 15552 mounting interface exactly.
This SKU uses an SUS420J2 stainless rod (option A) and lacks a magnet, so it cannot take a sensor. The SAI upgrade adds two Y-shaped piston seals for low start-up pressure. For load holding, note the cushion only decelerates; use a pilot check valve.
Airtac SI200 Standard Cylinder SI200AX165 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200AX165 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX165 |
| Bore size | Ø200 mm |
| Stroke | 165 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 SAI200AX165 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 SAI200AX165 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 SI200AX165
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×165 | 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 SI200AX165 Is Used
Heavy Press Systems
Generates 21991 N at 0.7 MPa for high-force stamping, forming, and heavy-duty press operations.
Platen Lowering
Controls descent of heavy platens using the 50mm adjustable air cushions to decelerate near stroke end.
Replacing the Airtac SI200 Standard Cylinder SI200AX165 with the SAI200AX165
To replace the discontinued SI200AX165, order the SAI200AX165. Verify the ISO 15552 mounting interface, 200mm bore, 165mm stroke, G3/4 port, and SUS420J2 rod. Because this SKU lacks a magnet (-S), it cannot support legacy CS1-B/DS1-B sensors. If sensing is needed, select an SAI model with the magnet option. If downsizing, a 160mm bore provides 10053 N push; if upsizing is impossible, note 1.0 MPa yields 3204 kgf. For load holding on air loss, the cushion only decelerates; add an external rod lock, pilot check valve, or use the SAIL/BSAI lock variants. The SAI family also offers the SAIF valve variant for smaller bores.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200AX165
- ✓ 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 SI200AX165 FAQ
Yes, the SI200AX165 is discontinued. The direct replacement is the SAI200AX165. It shares the identical ISO 15552 mounting interface, 200mm bore, 165mm stroke, output force, G3/4 port, and accessories, fitting directly into existing fixtures.
It has a G3/4 port. Force ratings 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; and a theoretical max of 3204 kgf at 1.0 MPa. Speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200AX165
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX165 replacement — usually within 7-8 hours.