Assembly & Secondary Processing Services
From components to ready-to-use products—fully integrated under one roof
- Reduce sourcing complexity
- Faster time-to-market
- Consistent quality across processes
- All uploads are secure and confidential
Why Choose Dimud for Assembly & Secondary Processing?
One-Stop Finishing Solution
From assembly to surface finishing, we handle all post-processing in one place—reducing supplier coordination and saving you time.
Consistent Quality Across Every Step
Integrated processes ensure uniform quality from components to final products, minimizing defects and rework.
Flexible & Scalable Production
Whether low-volume assembly or large-scale production, we adapt quickly to your project needs without compromising efficiency.
Faster Time to Market
By combining manufacturing and secondary processing, we shorten lead times and help you launch products faster.
Reduced Operational Complexity
We simplify your workflow by managing multiple processes under one system, so you can focus on your core business.
Reliable Delivery
Coordinated production and strict scheduling ensure your products are completed and delivered on time.
Custom Assembly Services for Complete Product Delivery
From components to fully assembled products — streamlined, efficient, and scalable.
We provide integrated assembly solutions that transform individual parts into ready-to-use products. By combining manual expertise with automated systems, we ensure consistent quality, faster turnaround, and reduced supply chain complexity.
- Manual & automated assembly solutions
- Multi-component integration capability
- Strict quality control & inspection
- Scalable from prototype to mass production
Assembly Capabilities & Techniques
Mechanical Assembly
Fasteners, screws, inserts, and structural joining
Bonding & Welding
Ultrasonic welding, heat staking, adhesive bonding
Plastic & Metal Integration
Combine plastic parts with metal components seamlessly
Functional Sub-Assemblies
Pre-assembled modules ready for final integration
Our Secondary Processing Capabilities
We source rapid prototyping of more than 60 plastic and metal materials.
Silk Printing
Silk printing uses manual or photographic plate making to create screens with blocked non-image areas. Ink is transferred to substrates via squeegee pressure, forming patterns. It features simple operation, low cost, strong adaptability, and thick ink layers with good adhesion.
Suitable for various materials and uneven surfaces, it supports monochrome and color printing, is light-resistant, flexible, and widely used for posters, labels, textiles and more.
Pad Printing
Pad printing is an indirect, special printing method ideal for decorating 3D and small objects with fine patterns.
It uses etched plates: ink fills the engraved areas, excess is wiped off. A silicone head picks up the ink from the plate and transfers it onto the workpiece.
Major applications include advertising and the automotive industry, used on speedometers, control knobs, radio panels and more.
Heat Transfer Printing
Heat transfer printing uses heat and pressure to transfer patterns from heat-resistant film to materials.It includes traditional (for mass production) and digital (for small-batch custom products).
Patterns are printed on special transfer film, then applied via heat press to leather, fabric, metal, plastic, etc.It supports full-color printing, needs no plate making, and causes no material damage.
Main types: film transfer and sublimation transfer.
Water Transfer Printing
Water transfer printing uses water to transfer patterns from PVA film or paper to substrates via water pressure.
The process includes film printing, priming, activation, transfer, washing, drying and coating.
It suits almost any shape and material like ceramic, wood, metal, avoiding direct printing issues.
Eco-friendly and non-damaging to surfaces, it achieves better decoration than direct printing.
Painting
Painting is an industrial surface coating process, mainly for plastics, often combined with silk printing and pad printing. It must pass high temperature, friction, UV, alcohol and gasoline tests.
It improves appearance with various colors, protects and extends product life, and covers molding defects like flow lines and weld lines. It includes soft touch painting and rework technology.
Powder coating
Heat transfer printing transfers patterns to materials via heat and pressure. It has traditional for mass production and digital for small-batch customization. Patterns are printed on special film, then applied with a heat press to leather, fabric, metal, plastic and more. It supports full-color printing, needs no plate making, and won’t damage materials. Main types: film transfer and sublimation transfer.
FAQ
Secondary processing in the plastic injection molding industry encompasses various types, such as screen printing, pad printing, heat transfer printing, water transfer printing, spray painting, powder coating, ultrasonic welding, laser etching, anodizing, electroplating, IML/IMD, and others.
The following are some advantages of secondary processing:
1. It helps improve product surface quality.
2. It can extend the product’s service life.
3. It helps enhance the product’s corrosion resistance.
4. It facilitates the addition of product functionality.
5. It helps increase the product’s added value.
6. It also helps save time and costs for customers.
Several common quality defects occur during the secondary processing of plastics:
1. Painting: Paint thinness, insufficient coverage, oil stains, paint accumulation, dust spots, “orange peel” texture, polishing marks, color deviation, residual oil marks, etc.
2. Hot Stamping: Dust spots, wrinkles, dents, scorching, peeling, etc.
3. Screen Printing / Pad Printing: Ghosting (double imaging), blurred text, uneven lines, inconsistent font styles, color discrepancies, etc.
4. Overspray: Refers to paint adhering to areas outside the designated spray zone. This is typically caused by a mismatch between the dimensions of the spraying fixture and the product itself. Additionally, improper fixture design or a loose fixture that is not securely seated can also lead to overspray issues.
5. Paint Accumulation (Runs/Sags): This indicates that the paint application is excessively thick, resulting in an accumulation of paint material. The root cause of this issue is an excessive volume of paint being applied. Consequently, this can also lead to the appearance of wrinkles or an “orange peel” texture on the surface of the part.
6. Color Deviation: Refers to a discrepancy between the actual painted color and the reference standard (such as a master model or color palette). This is typically caused by poor pigment quality, improper pigment mixing ratios, or inconsistent painting techniques.
Screen printing means using silkscreen as a plate base, a screen printing plate with graphics and text is completed by the way of photosensitive plate making. Screen printing includes these five elements: screen printing plate, scraper, ink, printing table, and substrate. Screen printing is based on the principle that the mesh of the graphic part of the screen printing plate can penetrate the ink, while the mesh of the non-graphic part cannot penetrate the ink.
Pad printing is one of the special printing ways in secondary processing. Through this way, text, graphics as well as images can be printed on the surface of irregular and heterogeneous objects, and now it has become more and more important in our daily life. For example, surface text and patterns on mobile phones are printed in this way, and the external printing of many electronic parts such as computer keyboards, instruments, meters, etc. is all done by pad printing.
There are several advantages of screen printing in secondary processing.
(1) It is not limited by the size and shape of the substrate.
Screen printing can not only print on a flat surface, but also print on molded objects with special shapes (such as spherically curved surfaces), and even shaped objects can be screen printed as well.
(2)The layout is soft and flexible.
(3)It has Strong ink coverage.
(4)The ink type is not restricted.
(5)The finished product is not affected by temperature or sunlight.
(6)It has flexible printing methods.
(7)It is convenient in plate making, low in price, and easy-to-master in technology.
(8)It has strong adhesion.
(9)It can be printed either by hand or by machine.
(10) It is suitable for long-term display, which makes outdoor advertisements more expressive.