This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160BX80, 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 SI160 Standard Cylinder SI160BX80
The AirTAC Airtac SI160 Standard Cylinder SI160BX80 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 80mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160BX80, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke80 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160BX80
- 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 SI160 Standard Cylinder SI160BX80
The AirTAC SI160BX80 is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm stroke and a 160 mm bore, delivering 10053 N of push force at 0.5 MPa. It features a SUS304 stainless steel piston rod (the -B option) for corrosion resistance, a G3/4 air port, and 50 mm adjustable air cushions at both ends. Because this SKU lacks the -S magnet suffix, it cannot accept a magnetic position switch.
The direct replacement is the SAI160BX80, which preserves the original ISO 15552 mounting interface, bore, stroke, output force, and port size. The SAI upgrade introduces a two Y-shaped one-way piston seal for lower start-up pressure and longer life.
Airtac SI160 Standard Cylinder SI160BX80 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160BX80 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160BX80 |
| Bore size | Ø160 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 SAI160BX80 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø160mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 kgf | |
The SAI160BX80 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI160 Standard Cylinder SI160BX80
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | 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 SI160 Standard Cylinder SI160BX80 Is Used
Heavy Stamping Press
Drives large heavy-duty stamping dies requiring high thrust, utilizing the 10053 N push force at 0.5 MPa to form thick metal components reliably.
Platen Clamping
Secures large moulding platens in heavy manufacturing machinery, relying on the robust 40 mm SUS304 stainless rod for corrosion resistance.
Replacing the Airtac SI160 Standard Cylinder SI160BX80 with the SAI160BX80
To replace the discontinued SI160BX80, order the SAI160BX80. Verify that your existing fixture matches the ISO 15552 mounting interface, the 160 mm bore, the 80 mm stroke, and the G3/4 port. Select the matching mounting accessory (such as an LB foot or TC trunnion) and confirm the -B SUS304 stainless rod material for corrosive environments. Since this non-magnetic SKU cannot support sensors, if position detection is required you must migrate to a current SAI family switch. If you need to size both ways, the neighbouring 125 mm bore offers less force, while stepping up increases bulk. Note that a plain double-acting cylinder drifts on air loss; for load holding, use an external pilot check valve or explore the SAIL or BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160BX80
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI160 Standard Cylinder SI160BX80 FAQ
Yes, the AirTAC SI160BX80 is discontinued and end-of-life. The direct replacement is the SAI160BX80. It shares the exact same ISO 15552 mounting interface, 160 mm bore, 80 mm stroke, output force, and G3/4 port, so it fits directly into existing fixtures without modification.
The bore is 160 mm with a G3/4 air port. The thrust ratings are: 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, 18095 N push at 0.9 MPa, and a theoretical maximum of 2050 kgf at 1.0 MPa. The operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160BX80
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160BX80 replacement — usually within 7-8 hours.