Bag-in-Box Packaging Machine

The ZC-SL550 Bag-in-Box Packaging Machine is a specialized side load case packing system designed for soft, irregular, and hard-to-stack products.

The system uses a controlled drop-stacking method, allowing products to settle into stable groups before being pushed sideways into the carton.

• Stable product pre-stacking
• Precise side push into cartons
• Automatic case erecting and sealing

With a capacity of up to 8 cases per minute, the machine offers a balanced solution between flexibility and efficiency.

It is ideal for products that cannot be directly picked or precisely arranged using conventional systems.

Unlike traditional top-drop case packers that rely on free falling placement, side push bag-in-box equipment separates product shaping, temporary buffering and carton loading processes, greatly reducing damage rates for flexible packaged goods. This structural design trade-off sacrifices partial ultra-high speed output in exchange for superior adaptability to complex soft packaging.

Application Limitations & Non-Suitable Scenarios: This side load case packer is not recommended for ultra-hard rigid parts, oversize heavy goods, leak-prone liquid sachets without outer reinforcement, or products requiring fully sealed vacuum packaging protection. For high-rigid regular boxes and hard containers, conventional drop-type case packing solutions remain more cost-effective.

Side Push Mechanism Engineering Principle: The ZC-SL550 adopts a dual-cylinder horizontal side push structure instead of vacuum suction or robotic arm picking, mainly to solve the problem of soft bag deformation caused by uneven force. The push plate is designed with a flexible rubber buffer layer, and the pushing speed is dynamically adjusted according to the product's softness (0.8-1.2 m/s), which can avoid both the product displacement caused by too slow pushing and the bag breakage caused by too fast impact. Compared with the vacuum side push scheme, this mechanical structure reduces the failure rate by 40% in long-term continuous operation, and avoids the instability problem caused by vacuum leakage in dusty industrial environments.

Capacity Limitation Causal Explanation: The maximum capacity of 8 cases per minute is not a random setting, but a scientific balance based on three core mechanical constraints: first, the product pre-stacking buffer area (150mm×200mm) can only stably hold 1 group of products (matching the carton size) every 7.5 seconds; second, the horizontal push cylinder's stroke (550mm) and reset speed (1.5 m/s) determine the minimum single-cycle time; third, the automatic case erecting mechanism's speed (10 cases/min) is the upper limit, and the 8 cases/min setting ensures the synchronization of the whole line without jamming. If higher capacity is required, the buffer area needs to be expanded and the dual-cylinder push structure replaced with a four-cylinder parallel push, which will increase the equipment volume and power consumption by 30%.

Production Line Integration System Logic: The ZC-SL550 supports integration with upstream automatic packaging machines (vertical form-fill-seal machines, flow wrapping machines) and downstream carton sealing machines, palletizers, but requires strict synchronization of three key parameters: the upstream product output speed (must be 8-10 groups/min, matching the equipment capacity), the conveyor height (750±50mm, consistent with the equipment's feeding port), and the signal communication protocol (supports Modbus RTU, Ethernet/IP, ensuring real-time data interaction between the whole line). It is not suitable for integration with old manual feeding lines or equipment with non-standard communication protocols, and additional signal converters need to be configured in such cases, which will increase the integration cost and reduce the operation stability.