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

Plastic dispenser pumps are among the most demanding small parts to finish in the packaging industry. Lotion pumps, soap dispenser pumps, spray pumps and trigger pumps all need a smooth, uniform coating on curved plastic components such as actuators, caps and collars. For manufacturers of these pump parts, manual spraying often becomes the bottleneck that limits quality consistency and daily output.

The Challenge: Coating Small Plastic Pump Parts at Scale

Dispenser pump components are small, irregularly shaped and produced in high mix. Factories that rely on manual spray painting usually face the same group of problems:

• Uneven film thickness: Curved pump parts make it hard for operators to keep a uniform paint layer, causing thin spots, runs or color difference from batch to batch.
• Heavy dependence on skilled painters: Output and quality follow the experience and physical condition of each worker, which makes production schedules hard to control.
• Frequent model changeover: Pump series change quickly with new orders, and manual lines need long adjustment time between models.
• Paint waste and rework: Over-spray during manual operation raises paint consumption, while coating defects increase rework and reject rates.

The Solution: An Automated Fine Mist Spray Coating Line

To solve these problems, pump part manufacturers can upgrade to a ground-mounted automatic spray painting production line designed for fine mist coating of small plastic workpieces. The line is configured according to each factory’s layout, production volume and part mix.

Key equipment features applied in this coating scenario:

• Dual independent spray guns: Brand and nozzle can be selected according to paint type and workpiece geometry, supporting water-based and oil-based paint systems.
• ±0.05mm positioning accuracy: Closed-loop stepper drive keeps the spraying path stable so every pump part receives the same film thickness.
• Integrated belt or roller conveyor: Conveyor length and configuration are customized to match the workshop floor plan and target capacity.
• Touch screen control with stored programs: Spray parameters for different pump models can be saved and recalled instantly, shortening changeover time between batches.
• Flexible station layout: Number of spray stations, loading and unloading methods and gun arrangement are all configurable for small, high-mix parts.

Results Factory Owners Can Expect

With an automated fine mist coating line, dispenser pump manufacturers move from operator-dependent painting to repeatable process control:

• Uniform coating quality: Fixed spraying trajectory and pressure control eliminate manual errors, reducing color difference, peeling and rework.
• Stable daily output: Production no longer depends on the availability of skilled painters, making delivery schedules more reliable.
• Fast model changeover: Stored programs allow quick switching between different pump types, ideal for high-mix production.
• Lower paint consumption: Controlled spraying reduces over-spray and material waste compared with manual operation.
• Easier labor management: One machine can replace several spray stations and reduce reliance on hard-to-find experienced workers.

Equipment Configuration at a Glance

Get a Coating Solution for Your Pump Production

Every pump factory has its own part mix, paint system and floor space. To receive an accurate solution and quotation, please provide the following information:

• Workpiece size and shape of your pump parts
• Product photos or short videos
• Paint type (we will assess paint condensation and adhesion risks)
• Required daily output
• Daily workshop operating hours
• Whether baking or curing function is needed

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.