PCB Assembly

With high technology and intelligent processes, the Cromatek is reference in the PCB assembly for industries. Count on our experts to turn your projects into reality.

Request a Quote for PCB assembly:

Attention, Cromatek is not a PCB/PCB manufacturer. We assemble boards with electronic components under contracts Labor ou Turn KeyTo ensure the feasibility of your assembly project, it is necessary to have a production perspective and to provide the files Download here the ready-made BOM template

Over 6.000m² structure

The Cromatek meets high demands for THT and SMT electronic board assembly with excellence, has a capacity of 3,000,000 (three million) components per shift, ESD clean room, final product integration line, PPB (basic production process), and all necessary testing equipment. Commitment to quality, deadlines, and especially to you, our customer!

Why Choose Cromatek PCB Assembly

ESD Clean Room

Room with antistatic protection so as not to damage the electronic components.

Labor Contract

Contract only with labor for assembly, customer supplies the components.

Turn Key Contract

Contract includes labor + component management for PCB Assembly.

Electronic Components

Besides manufacturing, Cromatek imports components of high quality and origin.

Integration

Complete integration of the board in the final product and packaging.

Functional Tests

The plates are subjected to rigorous functional tests that validate their functioning.

ISO-9001:2015 Certified Quality

To ensure control and quality, Cromatek is certified ISO-9001:2015.

SPI and AOI Line Quality Control

From start to finish, the boards go through automatic optical inspection.

Lead Free (Rohs Normative)

Eco-friendly assembly line without the use of lead and other heavy metals.

State-of-the-art Engineering

We have a team of highly trained Development Engineers.

Component Storage

Logistics, organization and storage of components at controlled temperature.

Pre-assembly Consulting

We helped in the elaboration of the Bill of Material (BOM), Stencil and Gerber.

Get to know the equipment of the Plate Mounting line Cromatek

Inserting Machines

KE-3020

The KE-3020 It is from the same family as the KE-2080, but with a more modern concept and a user-friendly interface for both operation and programming with a touch screen. It is considered a flexible concept with laser and camera recognition, which allows the assembly of smaller components (0402) to larger and irregularly shaped components, with a productivity of 17,100 CPH (components per hour) on 7 assembly heads. It has the same flexibility in terms of shape and packaging, and can work with components on rolls or trays.

KE-2080

Component insertion equipment considered to be flexible in concept, with laser and camera recognition, allowing the assembly of smaller components (0402) up to larger and irregularly shaped components, with a productivity of 15,500 CPH (components per hour). Equipment that offers flexibility in terms of both shape and packaging, capable of working with components on rolls or trays.

FX1

Component insertion equipment with a capacity of 33,000 CPH (components per hour) and 8 assembly heads with laser recognition for components.

FX2

Component insertion equipment with a capacity of 40,000 CPH (components per hour) and 12 assembly heads with laser recognition for components.

FX3

The FX3 It is a high-productivity device that can reach 60,000 CPH (components per hour) with 24 vacuum nozzles divided into 4 assembly heads with laser recognition for components ranging from 0402 (metric) to 33.5 X 33.5 mm and 6 mm in height, it uses electronic feeders (up to 240 8 mm feeders) that provide greater pick-up accuracy and lower attrition rates. High-speed equipment for those who need volume and high feeder capacity, even for smaller volumes with a wider variety of products.

Welding Deposition Machines

Printer

We have three solder paste printing machines, providing our customers with different printing concepts and the ability to work with pinning, block, or vacuum support according to the requirements of each product. All are automatic and programmed by fiducial. By default, we use 29″ x 29″ frames, but we have the capability to adapt to 23″ x 23″ and squeegees of different sizes, all with automatic stencil cleaning with a wiper cloth, solvent, and vacuum.

Reflow Oven

We have three remelting furnaces that differ in the number of thermal zones, with 10 zones (2) and 13 zones (1), with the capacity to successfully process the most complex products in terms of size and heat dissipation challenges. We can use nitrogen to create an inert environment if specified, with flow control, and all our furnaces are capable of processing Tin Lead and Leadfree solders.

Inspection Machines

SPI

We have automatic solder paste inspection (SPI) equipment in our structure, bringing greater reliability to our solder paste printing process. We can work with specific ranges for each product or customer, evaluating the height, area, and consequently the volume with its 3D function on all assembled parts. As it is inline equipment, the SPI is capable of blocking a board that is not within the specified parameters, thus preventing the assembly of components on an incorrect amount of solder paste. Our machine also has a fault log, so that monitoring can be carried out and action taken if something out of the ordinary happens.

AOI

The component insertion process has some possible assembly flaws, such as poor positioning, which have tolerances governed by industry standards. In order to avoid these flaws and keep variations within the limits allowed by the standards, we have Automated Optical Inspection (AOI) equipment that checks not only the positioning of components but also their shape and content, working with two concepts: the degree of gray—mainly in terms of solderability—and image pattern comparison for shape, positioning, and content. In addition, we use statistical analysis to analyze behavior and thus evaluate trends and take preventive corrective action.

Depaneling Machine

Router

router The three most common types of board cutouts are serrated, V-cut, and milled. The type of cutout is chosen by the customer, but milled cutouts provide the best finish and lowest risk of damage to critical components in this regard (BGA and Fine Pitch). Based on this method, we have invested our resources in bringing robust milling equipment with cut line programming to the operation, which provides greater agility and fast results in programming, ideal for low volumes, and has a double table that is ideal for high volumes.

PTH to SMD Upgrade

Did you know that it is possible to convert a PCB with PTH components to one with SMD components? Our engineers can do a study to make this project possible and modernize your product.

As printed circuit boards with SMT assembly and SMD components have a high standard of quality and finish, the manufacturing process is much more precise than PTH, with PTH components and when the technology conversion takes place, even the PCB benefits from the reduced size.

A assembly of SMD electronic boards is more precise as it is made electronically, without human interference, after millimeter insertion of the components, the printed circuit board goes to the reflow oven, with 5 microprocessed zones that melt the solder paste (which can be with or without lead) thus fixing the components to the PCB, without the need to drill the PCB.

Step by Step for PCB Assembly

Industrial sector with excellence. It has temperature, humidity and ESD control, air shower door and traceability from the beginning to the end of production. Besides the new SPI and AOI quality control equipment, functional tests, and product integration industrial sector with excellence. It has temperature, humidity and ESD control, air shower door and traceability from the beginning to the end of production. Besides the new quality control equipment SPI and AOI, functional tests and product integration.

01 - Material Receiving IQC

All material received from our customers (Labor) or acquired by us (Turn Key) is submitted to our IQC - where all the specific requirements for approval of the items are analyzed by our quality area professionals.

02 - Material Checking

Besides the quality check, we also submit the material to the stock check, every electronic product or component before being stored is also counted and labeled so that we don't have any mishaps.

03 - Material Storage

Cromatek has 438m² of stock equipped and tested in relation to ESD (Electrostatic Discharge) required in the sector for component storage and also an air-conditioned room for MSD items, which are items sensitive to humidity.

04 - New Product Introduction

Before the product enters our production line, it is understood by our technical staff, where it is analyzed in relation to special assembly items, definition of production processes, products that must be engraved, or some specific assembly process, and only after that are the subsequent activities performed.

05 - Separating material and sending it to the production line

All material before entering the production line is identified with information on where it should go and in the correct quantity for production.

06 - Receiving material on the production line

The incoming material to the production line goes through some of our poka yoke to ensure that the materials are fed correctly into the machines.

07 - Batch or continuous production

There are two types of production, we can produce a single batch of a product, with quantity to be defined by the customer and will enter components counted for such, or we can continuously produce a product, which will make our system that generates the need for the components and sends them to the production line efficient.

08 - Production line and process auditing

Our quality department performs an audit of the entire production line before production starts, so that all machine programming, documentation, and inputs used in future production are checked.

09 - Line and production approval

Once the quality audit returns with an assertive result, production is started.

10 - SMT Line

We have in our structure three SMT lines capable of assembling products with varied components, from the simplest such as capacitors and resistors to the most complex, which are the BGAs, Slots and the like. We have inspection machines such as SPI and AOI in our most complete line to ensure the quality and solderability of the products produced.

11 – Linha PTH & TU (Touch Up)

We have two PTH lines, each line directed to its wave soldering machine, enabling us to produce more than one product simultaneously so that each product/customer has its own exclusive production line.
Our two TU lines each follow their respective PTH line, we use specific soldering iron tips to perform the soldering in the best way for each product, we define the specific processes for each customer, and we also seek to develop tools for this if necessary.

12 - Mechanical Assembly Line

Our structure has a line prepared to perform mechanical assemblies, be it electronic board assembly in cases or electrical panels. Our assembly line is flexible and we can define its layout in a way that meets the products that will be assembled on it.

13 - Functional Test Lines

We have two ICTs (In-Circuit Test), which can be fed with the customer's own test base or if necessary we can develop a test base specific to our customer's product.
We also count on our structured conveyors for functional tests outline that help in the speed of handling the products and also in the preservation of our process in the production line.

14 - Packing

We can pack the products as requested by the customer, from boards in antistatic bags stored in boxes and delivered to our customers, to the product assembled in its mechanical packaging and stored in the final product box for shipment to our customer's final consumer.

15 - Final Quality Inspection

After the product is packaged it goes through a quality inspection, this is done according to a table of limits and quantities, known as AQL in the quality area, according to the order/batch quantity an audit is done on the boxes where some parts are inspected, tested and validated.
Only after this quality approval is the material actually made available to stock for storage and later delivery to the customer or final consumer.

Carry out your project with Cromatek

The Cromatek has a high production capacity, acting from the project to the final product. We have a vast structure that includes from the production of components, import, projects, tests and logistics. For the realization of the budget we need the following information:

- A list of components called BOM – Bill Of Materials
- Gerber file (which is the license plate document)
- The volume of production

We have the complete solution for your company.