Dispensing Machine Selection Guide: Precise Matching of Products and Adhesives

 Dispensing Machine Selection Guide: Precise Matching of Products and Adhesives

 

In intelligent manufacturing scenarios such as electronics manufacturing, automobile assembly, and medical equipment, the adaptability of dispensing machines directly affects product yield, production efficiency, and overall cost. The core selection logic is to ensure a precise match between equipment performance and adhesive characteristics and product requirements, avoiding problems such as uneven adhesive application and machine downtime due to blockages. This article provides a concise and easy-to-understand professional selection solution based on industry practical experience.

1.Basic Understanding of Dispensing Machines

(I) Definition and Advantages

Desktop dispensing machines are devices specifically designed for dispensing fluids onto the surface or interior of products. They offer advantages such as small size, easy operation, high precision, high automation, convenient maintenance, and affordable price, making them suitable for dispensing lightweight and small products.

(II) Working Principle

The adhesive or fluid is propelled from a container using pressure, compressed into tiny droplets by a needle or nozzle, and then quickly detached from the needle or nozzle, precisely coating the target surface. The control system precisely controls the position, size, and speed of the droplets. Combined with accessories such as a worktable, rotary axis, and robotic arm, it enables automated and intelligent operation, improving production efficiency and product quality.


Figure 1. Example of a standard desktop dispensing machine

Ⅱ.Core Selection Criteria

(I) Adhesive Characteristics: The Core Prerequisite for Selection

The physicochemical properties of the adhesive directly determine the core configuration of the dispensing machine. Different types of adhesives require dedicated equipment designs.

1.Key Adhesive Parameters (TDS):

Low-viscosity adhesives can use needle-type or diaphragm-type valves; medium-to-high viscosity adhesives require screw valves or plunger valves; adhesives containing particles require models with large flow channels and wear-resistant parts.

Corrosive adhesives require confirmation that contact parts are made of corrosion-resistant materials such as stainless steel or PTFE.

Thermosetting adhesives require equipment that supports temperature adaptation; for UV-curing adhesives, ensure the valve body material does not block UV rays.

AB adhesives must be equipped with a two-component automatic mixing system.

 

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