ZONESUN ZS-AFK180 Automatic Twist-off Caps Tracking Vacuum Lug Capping Machine for Glass Jars
The ZONESUN automatic vacuum lug capping machine seals glass jars with metal lug caps. Cap sorting, jar positioning, dual-head tracking capping, vacuum sealing, and vacuum inspection all run within one compact system. The tracking capping structure follows each jar along the conveyor during capping rather than holding it at a fixed station. The cap engages gradually across the contact distance, reducing impact at the moment of thread engagement and keeping the line moving at consistent speed. Before the cap seats, the vacuum chamber removes air from the jar headspace. For jam, sauce, honey, pickles, and preserved foods, that oxygen reduction is what determines how long the product stays fresh after sealing. An automatic cap sorting system feeds lug caps to the capping station continuously. Capping parameters including torque and conveyor speed adjust through the PLC control system to match different jar sizes and cap specifications. Stainless steel construction suits the cleaning frequency and moisture exposure of continuous food production. Automatic Vacuum Lug Capping Machine Parameter Machine Model: ZS-AFK180 Power Supply: AC380 V, 50 Hz , 5 KW Capping Heads: 2 Tracking Heads Production Capacity: About 55-60 BPM (Depending on Product Size) Suitable Cap Diameter: φ38-φ80 mm Suitable Bottle Size: φ50-φ80 mm * Height 65-200 mm Capping Torque: 5-25 kg·cm Vacuum Level: -50 to -70 KPa Conveyor Height: 800±30 mm Air Pressure: >0.5 MPa, 0.3 m³/min Machine Size: About 3800*1133*2030 mm(L*W*H) *Specifications are for reference only and may vary by your product. Please confirm with us if required. Glass Jar Feeding & Positioning System The automatic feeding system guides glass jars into the capping area and precisely positions each container, making it suitable for continuous packaging of jam, sauce, honey and other food products. Lug Cap Sorting System The lug cap sorter automatically organizes metal caps and delivers them to the sealing station, ensuring stable cap supply for high-speed food jar packaging. Vacuum Lug Capping System The vacuum capping unit removes air inside glass jars while applying lug caps, creating a tight seal for products requiring longer shelf life such as sauces, pickles and preserved foods. Tracking Capping Technology The tracking mechanism allows the capping heads to move together with jars during sealing, improving cap alignment and reducing the risk of loose or damaged caps. Sealing Quality Inspection The vacuum inspection device checks the sealing condition of finished jars, helping maintain consistent packaging quality during mass production.