Fully automatic rebar bundling machine designed for fast, consistent tying of rebars, aluminum ingots, and packaging materials. Portable and battery powered, it combines strong clamping, adjustable tension control, and rapid knotting to reduce labor time and improve bundle quality. Key benefits Saves time and labor by completing each knot in 0.8 seconds, increasing tying speed on busy jobsites. Consistent tightness and adjustable settings deliver repeatable results for different materials and bundle sizes. Portable battery operation removes dependence on power cords, enabling use across sites and in limitedaccess areas. Main features and specifications Power and runtime: Includes two 5000mAh rechargeable batteries. Charging time 50 to 80 minutes. On a single full charge the tool can bundle about 3500 rebars. Bundling range: Suitable for bars and materials with diameters from 4 to 45 mm / 0.16 to 1.77 in. Knot speed and wire: Wire diameter 0.8 mm / 0.03 in. One knot completes in about 0.8 seconds. Wire roll capacity: Total wire length per roll 95 m / 3740 in. One roll can tie about 180 knots. Adjustable tension: Upgraded LED screen shows gear selection for tension. Digital adjustment from 1 to 10 allows setting tightness from loose to tight to match application needs. Clamping and structure: Designed clamping force and a specially shaped structure to reliably grip and bundle rebars, aluminum ingots, and packaging materials. Portability and ease of use: Lightweight, compact design. Simple operation with an outlet switch to pull wire and controls to set tension and number of turns. How it solves common problems Reduces manual tying fatigue and inconsistencies by automating knotting and tension control. Provides quick setup and adjustment for different material sizes, eliminating repeated manual rework. Battery operation and compact size make the tool practical for overhead work, confined spaces, and remote sites. Practical use scenarios Construction site rebar tying: Rapidly tie rebar intersections for foundations, columns, and slabs with consistent tightness across many ties. Metal handling and storage: Bundle aluminum ingots or metal bars for transport and storage with reliable clamping and adjustable tension. Warehouse and packaging: Secure bundles of rods, pipes, or other long materials prior to or stacking. Operation tips Charge both batteries fully before first use and keep a spare battery charged for continuous operation. Select the appropriate gear on the LED screen based on material and required tightness, then adjust the number of turns as needed. Use the outlet switch to feed wire, confirm the clamp is properly seated, and let the machine complete the knot cycle. Compatible applications Rebar tying in construction, metal bundling in foundries or warehouses, and general packaging of rodlike materials within the specified diameter range. This machine combines fast knotting, digital tension control, and portable battery operation to streamline repetitive tying tasks while maintaining consistent bundle quality.