This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX80, 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 SI200AX80
The AirTAC Airtac SI200 Standard Cylinder SI200AX80 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 80mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200AX80, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke80 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200AX80
- 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 SI200AX80
The AirTAC SI200AX80 is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm stroke and a SUS420J2 stainless steel piston rod. It delivers 15708 N push force at 0.5 MPa through a G3/4 port. The direct replacement is the SAI200AX80, sharing the same interface, bore, and force.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. Note this SKU lacks a magnet, so it cannot accept a CS1-B/DS1-B sensor.
Airtac SI200 Standard Cylinder SI200AX80 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200AX80 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX80 |
| Bore size | Ø200 mm |
| Stroke | 80 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 SAI200AX80 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 SAI200AX80 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 SI200AX80
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×80 | 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 SI200AX80 Is Used
Heavy Press Stamping
Drives large metal forming presses where the 15708 N push force at 0.5 MPa is required to shape thick plate material reliably.
Mold Clamping Stations
Secures large injection molds using the robust 40 mm SUS420J2 stainless rod, resisting corrosion in humid production environments.
Replacing the Airtac SI200 Standard Cylinder SI200AX80 with the SAI200AX80
To replace the SI200AX80, order the SAI200AX80. Verify the ISO 15552 mounting interface, 200 mm bore, 80 mm stroke, G3/4 port, and M36x2 rod thread. This unit uses an -A SUS420J2 stainless rod and has no magnet, meaning no switch can be fitted. If dropping to a 160 mm bore reduces the 0.5 MPa push to 10053 N, whereas a 200 mm bore at 0.7 MPa yields 21991 N. Because standard cylinders drift on air loss, use an external pilot check valve or the SAIL/BSAI lock variant for load holding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200AX80
- ✓ 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 SI200AX80 FAQ
Yes, the SI200AX80 is discontinued. The direct replacement is the SAI200AX80, which maintains the identical ISO 15552 mounting interface, 200 mm bore, 80 mm stroke, 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. The speed range is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200AX80
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX80 replacement — usually within 7-8 hours.