latest company case about Dongguan Mansheng Automation Equipment Co., Ltd Certifications

Plastic handles — used on tools, cabinets, drawers, luggage, garden equipment and household appliances — are functional parts that customers touch every day. Their coating must be smooth, uniform and durable, because any rough spot, thin area or color difference is immediately noticeable. Handles are typically long and narrow with grip contours, ribs and end details, which makes consistent coating difficult with manual spraying. For manufacturers of plastic handles, adopting a high-precision robotic spraying unit is a practical way to stabilize surface coating quality at high volume.

The Challenge: Uniform Surface Coating on Plastic Handles

Plastic handles are produced in large quantities and many styles, colors and sizes, which makes coating quality hard to stabilize. Factories relying on manual spraying typically struggle with:

• Uneven film along long handle bodies: Operators find it difficult to keep a uniform coating across grip contours, ribs and end sections, causing thin spots, sagging or runs.
• Color difference between batches: Spray distance, speed and paint feed vary with each operator and session, so the same color can look different between batches.
• High reject rate on high-volume parts: Defects such as orange peel, pinholes and dust marks scrap large numbers of handles and inflate production cost.

The Solution: High-Precision Robotic Spraying on a Ground-Mounted Line

To meet the finishing requirements of plastic handles, manufacturers can adopt a high-precision robotic spraying unit built on a fully customized, ground-mounted automatic spray painting production line. The conveyor configuration, spray station count and layout are engineered around the customer’s handle types, paint system and target output.

Key equipment features applied in this surface coating scenario:

• High-precision robotic spraying: Stable, repeatable spraying trajectories keep film thickness uniform along the full length of handle bodies, including grip contours and end details.
• Dual gun stations with closed-loop control: Dual independent guns with stepper drive achieve ±0.05mm positioning accuracy for consistent coating quality on every piece.
• Stored programs for quick changeover: The Mansheng touch screen control platform stores 10,000+ coating programs, so parameters for different handle styles and colors can be recalled instantly via USB communication.
• Integrated conveyor automation: Seamless belt or roller conveyor with custom length supports continuous flow of handles and reduces manual handling.
• Industrial-grade components: Core parts sourced from leading brands such as Leadshine, HIWIN and NSK ensure long-term reliability under continuous production.

Results Manufacturers Can Expect

With high-precision robotic spraying, plastic handle manufacturers move from operator-dependent finishing to controlled, repeatable coating:

• Uniform, durable finish: Fixed spraying parameters eliminate manual variation, reducing thin spots, sagging and color difference.
• Lower reject rate: Stable film thickness and fewer coating defects mean less scrap of high-volume handle parts.
• Stable daily output: Production no longer depends on the availability of skilled painters, making delivery schedules reliable.
• Fast style and color changeover: Stored programs allow quick switching between handle designs, supporting many SKUs and frequent color changes.

Equipment Configuration at a Glance

Get a Surface Coating Solution for Your Plastic Handles

Every handle manufacturer has its own product range, paint system and floor space. To receive an accurate solution and quotation, please provide the following information:

• Handle type, size and plastic material
• Product photos or short videos
• Paint type (water-based or oil-based)
• Required daily output and workshop operating hours

Leave a message on our website or contact us via WhatsApp: +852 5132 5958. Our engineering team will review your production conditions and share a feasible spraying solution for your factory.