Automatic PVC Dip Coating Line for Car Bumper Guard & Anti collision Beam
Project Background
The customer produces frame-type anti-collision beams for trucks and off-road vehicles. Workpiece specs: 2592.7×1092×913.3 mm, 55-80 kg, requiring black and silver surface finishes. The original manual coating process had unstable coating quality, low throughput and high labor costs. For mass production of these large-size, medium-weight steel anti-collision beams, the customer ordered a fully-automatic dip PVC plastisol coating line to deliver consistent high-volume output.
Design Concept
Given the beam’s large size, 55-80 kg weight and special frame structure, the line uses hanging conveyance with one workpiece per trolley; fixtures and trolleys are engineered for the workpiece load. Dual material tanks support non-stop production. Natural-gas-fired ovens provide energy-efficient, stable temperature for pre-heating and curing. The process covers loading, pre-heating, dipping, curing and unloading. Equipment and fixtures are custom-sized to the workpiece profile and load, allowing quick switch between black and silver production. Supply scope includes manufacturing, transportation and on- site installation, excluding overseas travel and accommodation costs.
Construction On-site
Equipment Specifications
| Coating material | PVC plastisol |
| Equipment Type | Full-automatic |
| Workpiece Dimension | 2598×1092×915 mm |
| Workpiece Weight | 55kg-80kg |
| Pre-heating Oven | 7 M × 2 M × 3.4 M |
| Curing Oven | 4 M × 2 M × 3.4 M |
| PVC Plastisol Tank Size | 3.2 M ×1.7 M ×1.3 M, 2 units in total |
| Trolley Dimension | 2.8 M × 1.6 M |
| Overall Equipment Dimension | 28 M ×7 M ×3.4 M |
| Total Power | 65 KW, equipped with 2 sets of natural gas burners |
| Output Capacity | 1 workpiece per trolley, 3-5 pieces per hour |
Application Effect
- Automated production: Full-automatic dippingoperation is realized for 55-80 kg large-size anti-collision beams, eliminating uneven coating thickness caused by manual impregnation.
- Qualified production capacity: Stable output reaches 3-5 pieces per hour, satisfying mass-production targets of anti-collision beams.
- Process compatibility: Supports both black and silver coating production. Dual-tank configuration guarantees continuous line operation.
- Energy consumption optimization: Natural gas heating ensures stable temperature in pre-heating and curing zones and reduces operating energy consumption.
Video Show
