This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X134SN, 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 SI80X134SN
The AirTAC SI80 Standard Air Cylinder SI80X134SN is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 134mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X134SN, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke134 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X134SN
- 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 SI80X134SN
The AirTAC SI80X134SN is a discontinued double-acting ISO 15552 profile cylinder featuring an extruded aluminum barrel and adjustable air cushions at both ends. In the 80 mm bore class it delivers 2513 N push and 2268 N pull at 0.5 MPa, with a G3/8 air port and a 25 mm piston rod. AirTAC replaced this legacy unit with the SAI80X134SN, a direct replacement retaining the exact ISO 15552 mounting interface, 134 mm stroke, port size, and output force.
The SAI upgrade introduces a refined piston seal utilizing two Y-shaped one-way elements for extended life and lower start-up pressure. For applications needing load holding on air loss, the new SAI family offers SAIL and BSAI lock variants absent in the SI line.
Airtac SI80 Standard Air Cylinder SI80X134SN Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X134SN |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X134SN |
| Bore size | Ø80 mm |
| Stroke | 134 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 SAI80X134SN 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 SAI80X134SN 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 SI80X134SN
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×134 | 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 SI80X134SN Is Used
Mid-Tonnage Pressing
Applies the 2513 N push force at 0.5 MPa for seating bearings or light stamping tasks in automated machinery.
Pallet Diversion
Uses the 134 mm stroke to push heavy pallets onto secondary packaging lines without fixture modifications.
Replacing the Airtac SI80 Standard Air Cylinder SI80X134SN with the SAI80X134SN
To replace the discontinued SI80X134SN, order the SAI80X134SN direct equivalent, verifying the ISO 15552 mounting interface, 80 mm bore, 134 mm stroke, G3/8 port, and the -S magnet for position sensing. The original -N denotes an NBR seal rated for -20 to +70 C; select the Viton H option for high-temperature environments up to 150 C. If sizing up or down, adjacent bores (63 mm or 100 mm) offer push forces of 1559 N or 3927 N at 0.5 MPa. Note that a standard cylinder drifts on air loss; the cushion only decelerates the end-of-stroke motion. For secure load holding, use an external pilot check valve or choose the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X134SN
- ✓ 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 SI80X134SN FAQ
Yes, the SI80X134SN is discontinued. The direct replacement is the SAI80X134SN. It features the same ISO 15552 mounting interface, 80 mm bore, 134 mm stroke, output force, and G3/8 port, fitting directly into existing fixtures.
The 80 mm bore uses a G3/8 air 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 theoretical maximum of 513 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X134SN
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X134SN replacement — usually within 7-8 hours.