This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X210H, 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 SI80 Standard Air Cylinder SI80X210H
The AirTAC SI80 Standard Air Cylinder SI80X210H is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 210mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X210H, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke210 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X210H
- 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 SI80 Standard Air Cylinder SI80X210H
The AirTAC SI80X210H is a discontinued double-acting ISO 15552 profile cylinder with an extruded aluminum barrel, delivering 2513 N push force at 0.5 MPa. It features a 25 mm rod, M20x1.5 thread, and a G3/8 port. The direct replacement is the SAI80X210H, retaining the exact bore, stroke, force, port, and ISO 15552 mounting interface for seamless fixture integration.
This SI80X210H unit includes a Viton H seal for 0-150 C high-temperature environments. Because this SKU lacks a magnet, it cannot accept a position switch. The SAI upgrade introduces a two-piece Y-shaped piston seal for low start-up pressure and long life.
Airtac SI80 Standard Air Cylinder SI80X210H Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X210H |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X210H |
| Bore size | Ø80 mm |
| Stroke | 210 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 36 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI80X210H carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAI80X210H produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI80 Standard Air Cylinder SI80X210H
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×210 | 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 SI80 Standard Air Cylinder SI80X210H Is Used
High-Temp Ejection
Uses the Viton H seal to eject molded parts in hot environments up to 150 C without degrading.
Heavy Transfer
Provides 2513 N of push force at 0.5 MPa to index heavy pallets along a production line.
Replacing the Airtac SI80 Standard Air Cylinder SI80X210H with the SAI80X210H
To replace the SI80X210H, order the SAI80X210H, confirming the ISO 15552 mounting interface, 80 mm bore, 210 mm stroke, G3/8 port, and your specific mounting accessory. This non-magnetic SKU cannot support sensors, unlike the -S variants that use CS1-B/DS1-B switches. For sizing alternatives, a 63 mm bore yields 1559 N push at 0.5 MPa, while a 100 mm bore provides 3927 N. Since the 210 mm stroke exceeds 300 mm? No, but always ensure guide alignment to prevent rod bending under side loads. A plain cylinder drifts without live air; for load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X210H
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI80 Standard Air Cylinder SI80X210H FAQ
Yes, the SI80X210H is discontinued. The direct replacement is the SAI80X210H, which matches the ISO 15552 mounting interface, 80 mm bore, 210 mm stroke, force, and G3/8 port.
It has a G3/8 port. Force output is 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, 4523 N push at 0.9 MPa, and a maximum theoretical force of 513 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X210H
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X210H replacement — usually within 7-8 hours.