This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X75SH, 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 SI80X75SH
The AirTAC SI80 Standard Air Cylinder SI80X75SH is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 75mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X75SH, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke75 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X75SH
- 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 SI80X75SH
The AirTAC SI80X75SH is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm bore and 75 mm stroke. It delivers 2513 N push force at 0.5 MPa through a G3/8 port. AirTAC replaced this legacy unit with the SAI80X75SH, a direct upgrade sharing the exact ISO 15552 mounting interface, stroke, output force, and accessories. The SAI features an upgraded piston seal with two Y-shaped one-way elements for lower start-up pressure and longer life.
This unit includes a piston magnet for legacy CS1-B/DS1-B sensors and a Viton H seal option for 0-150 C high-temp environments. Note that a standard cylinder drifts without live air; the air cushion only decelerates the stroke end.
Airtac SI80 Standard Air Cylinder SI80X75SH Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X75SH |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X75SH |
| Bore size | Ø80 mm |
| Stroke | 75 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 SAI80X75SH 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 SAI80X75SH 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 SI80X75SH
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×75 | 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 SI80X75SH Is Used
Mid-Tonnage Pressing
Applies 2513 N of thrust at 0.5 MPa for seating bearings or light stamping tasks within a 75 mm travel range.
Heavy Transfer Diverters
Drives robust routing gates or lifting stops on production lines, utilizing the 80 mm bore capacity.
Pallet Lift Stops
Securely halts pallets on gravity conveyors, safely handling vertical lift loads up to 128 kg.
Replacing the Airtac SI80 Standard Air Cylinder SI80X75SH with the SAI80X75SH
To replace the SI80X75SH, order the SAI80X75SH direct equivalent, confirming the ISO 15552 interface, 80 mm bore, 75 mm stroke, G3/8 port, and mounting accessory. The -S magnet enables CS1-B/DS1-B sensors, while the -H Viton seal handles 0-150 C heat. If you need to downsize, a 63 mm bore yields 1559 N push at 0.5 MPa; if up-sizing, a 100 mm bore provides 3927 N. For load holding on air loss, add an external pilot check valve or rod lock, as standard cushions only decelerate. The SAI family also adds SAIL lock, SAIF valve, and BSAI clamp-lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X75SH
- ✓ 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 SI80X75SH FAQ
Yes, the SI80X75SH is discontinued. The direct replacement is the SAI80X75SH. It shares the identical ISO 15552 mounting interface, 80 mm bore, 75 mm stroke, output force, and G3/8 port, fitting directly into existing fixtures.
The G3/8 port feeds a 25 mm rod delivering 2513 N push and 2268 N pull at 0.5 MPa. At 0.7 MPa push is 3518 N, and at 0.9 MPa it is 4523 N. The theoretical maximum force is 513 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X75SH
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X75SH replacement — usually within 7-8 hours.