This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X500FB, 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 SI160X500FB
The AirTAC Airtac SI160 Standard Cylinder SI160X500FB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 500mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X500FB, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke500 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X500FB
- 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 SI160X500FB
The AirTAC SI160X500FB is a discontinued double-acting ISO 15552 profile cylinder featuring a 160 mm bore and 500 mm stroke. Built with an extruded aluminum barrel and an FB flange mount, it delivers a push force of 10053 N at 0.5 MPa. Because this legacy SI unit is end-of-life, AirTAC specifies the SAI160X500FB as the direct replacement. The SAI upgrade shares the exact ISO 15552 mounting interface, 500 mm stroke, output force, and G3/4 port size, fitting existing fixtures seamlessly while upgrading the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life.
This non-magnetic SKU lacks a sensor groove switch capability and cannot take a magnetic piston switch. For applications requiring load holding on air loss, note that a plain cylinder drifts; the 50 mm adjustable air cushions only decelerate near stroke end. You must use an external rod lock, pilot check valve, or the SAI family's SAIL air-released lock or BSAI clamp-lock variants.
Airtac SI160 Standard Cylinder SI160X500FB Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X500FB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X500FB |
| Bore size | Ø160 mm |
| Stroke | 500 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 SAI160X500FB 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 SAI160X500FB 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 SI160X500FB
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×500 | 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 SI160X500FB Is Used
Heavy Stamp Presses
Drives large platens in metalforming presses where the 14074 N push force at 0.7 MPa and robust FB flange mounting handle severe impact loads.
Bulk Material Diverters
Shifts large divert arms on heavy aggregate or package conveyors, utilizing the full 500 mm stroke to clear wide transport paths.
Replacing the Airtac SI160 Standard Cylinder SI160X500FB with the SAI160X500FB
To replace the discontinued SI160X500FB, order the SAI160X500FB. Confirm the ISO 15552 FB flange mounting interface, 160 mm bore, 500 mm stroke, and G3/4 port (available in PT, G, or NPT threads). This non-magnetic version cannot accept sensors like the legacy CS1-B or DS1-B; if position detection is needed, select an SAI model with the magnet option (-S) and current AirTAC switches. When sizing, neighboring bores offer different forces: the 125 mm bore pushes 6136 N, while the 200 mm bore pushes 15708 N at 0.5 MPa. For load holding on air loss, a standard cylinder drifts because the cushion only decelerates; integrate an external pilot check valve, rod lock, or specify the SAIL or BSAI lock variant. Because the 500 mm stroke is long, prevent rod bending and seal wear by guiding the load externally to avoid side-load forces.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X500FB
- ✓ 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 SI160X500FB FAQ
Yes, the SI160X500FB is discontinued. The direct replacement is the SAI160X500FB. It is dimensionally interchangeable per the ISO 15552 mounting interface, matching the 160 mm bore, 500 mm stroke, force, G3/4 port, and FB flange mount. The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure.
This double-acting cylinder has 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 force of 2050 kgf at 1.0 MPa. It operates at 30-500 mm/s and has a 50 mm adjustable air cushion at both ends.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X500FB
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X500FB replacement — usually within 7-8 hours.