Suzhou Huazhuo automation equipment Co., Ltd

How to Automate Pallet Welding? Using a Hot Plate Welding Machine. Equipemt Application Case —— Huazhuo Automation Group Equipment Application Case (China) Case Background Hot plate welding is a well-established plastic welding technology widely used in automotive interior and exterior parts manufacturing, such as storage boxes, water tanks, oil reservoirs, glove boxes and flow channel plates. In recent years, this technology has also been increasingly applied to plastic pallet welding, especially for heavy-duty and reinforced pallet structures. The pallet hot plate welding machine is an automated welding system designed for thermoplastic pallets and large flat plastic components, achieving high-strength and well-sealed joints through hot plate heating, pressing, and controlled cooling. Equipment Overview The system is customized according to pallet size and material characteristics. By adjusting the positioning and limit plates, the same machine can accommodate pallets of different dimensions. Key Features Large welding area, suitable for oversized flat components High welding strength, with joint strength close to or equal to base material Excellent sealing performance, suitable for load-bearing, waterproof and dustproof pallet structures Stable process for thick-wall and reinforced plastic designs Applicable Materials PP/PE/HDPE/ABS,etc The system is particularly suitable for thick-walled and structurally reinforced pallets. Case Machine Specifications Model: HZ-RB2000 Overall Dimensions: L 7700 mm × W 4900 mm × H 2500 mm Machine Weight: 5 tons Applicable Pallet Size Range: 1000 × 1000 mm to 2000 × 2000 mm The machine is fully customized based on product material, size and structural design. Application Results After implementation, the pallet manufacturer achieved: Stable welding quality for large-size pallets Improved structural strength and sealing reliability Reduced manual intervention and rework Better consistency across different pallet sizes This solution provides a reliable welding method for high-strength plastic pallets used in logistics, warehousing and industrial transportation.

Automotive Plastic Parts Surface Treatment Machine —— Huazhuo Automation Group Equipment Application Case (China) Case Background In China’s automotive interior and exterior parts manufacturing industry, plastic components made of PP, PE and other low-surface-energy materials are widely used for trims, pillars, storage boxes and decorative panels. Before painting or adhesive bonding, stable and reliable surface activation is a critical process step to ensure coating adhesion and bonding strength. To meet different production requirements, the customer introduced two types of automotive plastic surface treatment machines: Flame Surface Treatment Machines and Plasma Surface Treatment Machines, which are applied according to product structure, production rhythm and quality requirements. Solution 1: Flame Surface Treatment Machine The flame surface treatment machine uses a controlled flame to rapidly heat and oxidize the plastic surface. This process modifies the molecular structure of the surface layer, increases surface tension, and significantly improves the adhesion of coatings and adhesives. This technology is mature and stable, and is widely used in pre-treatment before gluing or painting of automotive interior and exterior plastic parts. Key Advantages Fast processing speed and high efficiency Simple equipment structure with low maintenance cost Particularly effective for low surface energy materials such as PP and PE Suitable for high-volume, standardized production lines Typical Application Automotive interior trims before adhesive bonding Exterior decorative parts before coating Large batch production with stable product geometry Solution 2: Plasma Surface Treatment Machine The plasma surface treatment machine activates plastic surfaces using plasma discharge, effectively removing surface contaminants and increasing surface energy without direct contact. The system can be configured as a robot-mounted plasma unit or a chamber-type (box) plasma system, depending on the application. Plasma treatment is commonly applied in critical pre-gluing processes, where high bonding consistency and clean processing are required. Key Advantages Non-contact surface activation, minimal impact on material properties Uniform and consistent treatment quality Flexible robot paths for complex 3D surfaces No chemical solvents, environmentally friendly and VOC-free Comparison: Flame vs. Plasma Surface Treatment     Item                  Flame Surface Treatment         Plasma Surface Treatment     Treatment Principle                  Controlled flame oxidation         Plasma activation      Processing Speed                  Very fast         Medium to high     Surface Uniformity                  Good         Very high     Suitable Materials                  PP, PE, low surface energy plastics         Most thermoplastics     Product Geometry                  Simple to moderately complex         Complex 3D surfaces     Equipment Complexity                  Simple         Medium to high     Maintenance Cost                  Low         Medium     Environmental Impact                  Open flame, ventilation required         No VOC, clean process Plasma System Configuration Options Robot-mounted plasma system: Suitable for large, complex 3D automotive parts such as pillars and trims Chamber (box-type) plasma system: Suitable for small to medium-sized parts requiring batch processing and high consistency                                                                                   Application Results By selecting the appropriate surface treatment technology based on product structure and production needs, the customer achieved: Improved adhesive bonding reliability More stable coating quality Reduced rework caused by poor adhesion Better adaptability to different plastic materials This flexible combination of flame and plasma surface treatment provides a reliable solution for automotive plastic parts manufacturing Factory.

1. Project Background In automotive interior manufacturing, wrapping processes are widely used for dashboard trims, door panels, and A/B/C pillar interior parts.In this project, the customer produces both stitched and non-stitched interior components. During mass production, the original process showed poor consistency and a high rejection rate.   2. Customer Pain Points Stitching misalignment after wrapping, affecting appearance quality Same process used for stitched and non-stitched parts, causing instability Heavy dependence on operator experienc Difficult to balance cycle time and quality in automated production (Non-Stitched Component)   (Stitched Interior Component 1) (Stitched Interior Component 2) 3. Non-Stitched Parts Covering Process Process Flow Adhesive spraying → Drying →Heat pressing+ Automatic wrapping → Trimming   For non-stitched automotive interior parts, the key focus is surface adhesion and edge wrapping quality. Since there is no visible stitching, the material can be directly processed by the automatic wrapping machine.   4. Stitched Parts Covering Process (Key Difference) Process Flow Adhesive spraying → Drying → Pre-wrapping alignment → Heat pressing+ Automatic wrapping  → Trimming   Pre-Wrapping Alignment Station (Critical Process) For stitched interior parts, a pre-wrapping alignment station is added before the automatic wrapping process. The stitching is accurately aligned with the product reference line and fixed in advance, preventing displacement during wrapping.   5. Key Process Considerations Stitched parts should not skip the pre-wrapping process Mold pressure must be optimized around stitching areas Different process programs should be used for stitched and non-stitched parts   6. Project Results Significantly improved stitching alignment consistency Reduced rejection rate Stable cycle time with higher automation Standardized process, easy to replicate for other projects   7. Solution Summary By customizing the covering process based on product structure, this project delivers a one-stop automotive interior wrapping machine solution, effectively solving the key challenges of stitched parts in automated production. For more information about similar automotive interior wrapping solutions, please visit the official website of Huazhuo Automation