We’re a trusted PCB assembly partner from China, dedicated to delivering zero-defect PCBA solutions tailored to your needs. Benefit from our stringent quality standards and exceptional technical support, both before and after your projects. We’re here to ensure your success, from prototypes to full-scale production.
We can provide you our PCB assembly services in the following capabilities:
We provide you with three parts procurement options:
1.Turn-key: All parts sourced by Keep Best.
2.Combo: Partial parts offered by Customer and Keep Best sourcing the rest.
We perform multiple quality assurance procedures before shipping out any board. These include:
Visual inspection
X-ray Inspection
Online&Offline AOI (Automated Optical Inspector)
ICT (in-circuit test)
Functional test (test modules need to be supplied)
In addition, we will conduct a total of 19 quality inspection procedures including the above tests. The following is a diagram of our 19 quality inspection process:
As the first PCB assembly manufacturer in the industry,to provide customers with extreme high-quality services, we have prepared the following solutions for you:
1.If you want to have it repaired locally,we bear the cost of repairs.
2.If you agree to return it for repair,we cover logistics and repair costs.
3.If you do not agree to repair,we will replace you with a brand new product.
4.If you do not agree to repair and replacement,we will refund you.
KEEP BEST has a 3000㎡ 100,000-level dust-free workshop, equipped with 6 fully automatic high-speed SMT assembly lines, fully automatic solder paste printers, brand-new Yamaha YS20R, ten-zone nitrogen reflow ovens, wave soldering machines, etc.
Online 3D SPI, online AOI, X-RAY machines, intelligent first-piece testers, BGA Rework Station, Pbt Cleaning Machine, etc.
The production yield of SMT reaches 99.9%.
KEEP BEST has a 1000㎡ DIP electrostatic workshop.Equipped with 2 lead-free Lead-free Wave Soldering machines, with a daily production capacity of up to 100,000 pieces.
Professional DIP post-welding team and advanced post-welding equipment : selective conformal coating machines, FCT Tester,etc.
The parameters of the wave crest furnace are set according to each model. Adjust the operating speed, spray width and spray speed, and wave crest height, etc.
When changing to a new model or mass production, the furnace temperature needs to be measured once a day. After welding, the first 5 PCB boards are tracked, and the relevant parameters are adjusted according to the welding effect. The relevant parameters are also randomly checked, tracked and adjusted during the entire welding process to ensure welding. quality.
Transport speed (mm/Min): Set parameters according to the welding quality of the product.
Spray (mm/Sec): Set parameters according to product welding quality.
Preheating temperature of the first temperature zone: 130℃±5℃
Second temperature zone preheating temperature: 140℃±5℃
Preheating temperature of the third temperature zone: 150℃±5℃
The preheating temperature is for reference. Set the parameters according to the welding quality of the product.
Tin furnace (℃): 270(℃)±5℃
Tin furnace alarm temperature: lower limit: 265°C; upper limit: 275°C
We mainly focus on high-quality PCBA services with "zero defects, small and medium batches"
A complete turkey PCB assembly service ofers multiple benefts ncluding ease of management low or high volume assembly, muliple services, fast ead times, and
more!
offer turnkey PCB assembly services means that the supplier will handle al tasks including component or part sourcing, manufacturing, assembly and final delivery.
Yes, our experienced team is able to provide custom surface treatments (such as 0SP ENI, ImAg, ENIG,etc,) according to your requirements.
We are committed to making our products zero-defect and can return or exchange them for you without any reason.
Fill in your requirement information and upload Gerber and BOM files, we will give you a quote within 24 hours.
Fill in your requirement information and upload Gerber and BOM files, we will give you a quote within 24 hours.
