China factory Multi-Layer Customized PCBA Manufacturer and PCB Assembly Service near me shop

Product Description


Multi-Layer Electronics Motherboard Fabrication customized pcb assembly

 

Grandtop is specialized in DIP CZPT customized pcb assembly and pcba contract manufacturing and final products assembly service . We have professional team and quality control system. Our long-cooperation with global electric components original manufacturer and agent support us a reliable supply chain.

Where is the application for our customized PCB Assemblies service?

Our Rigid turnkey customized pcb assembly services are widely used in Industrial and Energy, Medical and Healthcare, Automotive, Information and Communication Technology, Werables, comsumer electronics

Our PCB board manufacture and CZPT DIP customized PCB assembly: 

1. No MOQ for Printed circuit board and CZPT DIP pcb assemby.
2. One-stop solution for various CZPT DIP PCB assembly.
3. Professional PCB Board engineer for one-to-1 service.
3. 100% PCBA AOI tested guarantee before shipping
4. RoHS, UL, ISO, SGS certificate approved
5. Factory production Capability of 30000 sqm/month 
6. Turnkey EMS (electronics manfacturing service) including pcb manufacturing, compoments sourcing, pcb assembly, pcba conformal coating, box build, PCBA function testing.
7. Excellent Customer Service to Meet Your Special Needs
8. Shipment on time.

PCBs We Can Make:

1) We do PCB from double side up to 30-layer Multilayer PCB, HDI jobs. 
2) If you have repeat orders from other suppliers, and you want to transfer to Intech, we can accept FREE OF TOOLING. 
3) Except excellent quality and professional service, we also pay every detail for our customers, for example package to use Desiccant packs & moisture indicator in vacuum-sealed pack to protect PCB. 
4) Material: We have FR4 TG135/TG158/TG180 normal material in stock, also have FR1/ FR2/ FR3/ CEM1/ CEM3/ ROGERS/ ARLON/ ISOLA. 
5) Rigid / flex/ flex-rigid PCBs with UL approved. 
6) Flexible,quickly feedback for customers always. 
7) Quickly offer will be less then 4 hours, Some top urgent inquiry we can offer within 1hour.

Testing Procedures For CZPT DIP customized PCB assembly: 
We perform multiple quality assuring procedures before shipping out any PCB board. These include:
* Visual Inspection
* Flying probe, fixture tool
* Impedance control
* Solder-ability detection
* Digital metallographic microscope
* AOI (Automated Optical Inspection)

PCB Capacity

 

Items Capability
PCB Layers 1-28 layers
PCB material FR4, FR5, Aluminium,High Tg FR4, Halogen Free, Isola, Rogers
PCB Finished Board Thickness 0.2mm ~ 7.0mm(8mil-276mil)
PCB Copper Thickness 1/3oz ~ 7oz
PCB Max gold plating thickness 50 microinch
PCB Min. Trace Width/Space 0.075/0.075mm(3/3mil)
PCB Min. Finish Holes Size 0.1mm(4mil) for laser holes; 0.2mm(8mil) for mechanical holes
PCB Max.Finshed Size 600mm x 900mm (23.6″ x 35.43″
PCB Hole Tolerance PTH:±0.076mm(+/-3mil), NTPH:±0.05mm(+/-2mil)
PCB Soldermask Color Green, White, Black, Red, Yellow, Blue,ect
PCB Silkscreen Color White, Black, Yellow, Blue
PCB Impedance Control +/-10%
PCB Profiling Punching Routing, V-CUT, Chamfer
PCB Special Holes Blind/Buried holes, Countersunk holes
PCB Surface Finishing HASL, Lead Free HASL, Immersion tin, Immersion gold, Gold plating, Immersion silver, OSP, Carbon, etc.
PCB Certificate UL, ISO9001, ROHS, SG

DIP CZPT customized PCB Assembly Technical requirement:

1) Professional Surface-mounting and Through-hole soldering Technolog
2) Various sizes like 1206,0805,0603 components CZPT technology
3) ICT(In Circuit Test),FCT(Functional Circuit Test) technology.
4) CZPT OEM PCB Assembly With UL,CE,FCC,Rohs Approval
5) Nitrogen gas reflow soldering technology for SMT.
6) High Standard SMT& Solder Assembly Line
7) High density interconnected board placement technology capacity
 

SMT PCB Assembly Capacity

 

Items Capacity
PCB Assembly Min. IC Pitch 0.30mm(12mil)
PCB Assembly Foot Pin SO, SOP, SOJ, TSOP, TSSOP, QFP, BGA and U-BGA
PCB Assembly Min. Chip Placement 5711
PCB Assembly Max. PCB Size 410mm x 600mm(16.2″ x 23.6″)
PCB Assembly Maximum BGA Size 74mm x 74mm(2.9″ x 2.9″)
PCB Assembly BGA Ball Pitch 1mm ~ 3mm(4mil ~ 12mil)
PCB Assembly BGA Ball Diameter 0.4mm ~ 1mm(16mil ~ 40mil)
PCB Assembly QFP Lead Pitch 0.38mm ~ 2.54mm(15mil ~ 100mil)
PCB Assembly Method SMT, DIP, AI,MI
PCB Assembly Certification ISO9001, ISO13485, IATF16949

Turnkey Electronics manufacturing Service

 

pcb service PCB circuit design, PCB Layout, pcb manufacturing, pcb copy
PCB components PCB components advicing, PCB compoments sourcing
PCBA OEM PCB prototype assembly, pcb with components,
Testing PCBA AOI test, PCB Assembly BGA X-RAY test, PCBA ICT test, PCBA FCT test
Conformal coating Conforal coating via coatingmachine , and UV oven
Box Build BOX build, box assembly
Turnkey service wire harness, sheet metal, plastic

 

Company Information

Grandtop Group is spe 10 years’ experience in Electronics PCB Assembly contract manufacturing, professionally providing SMT, DIP, MI, AI, Eelectronic PCB assembling, conformal coating, final product assembling, testing, material procurement ,and 1 stop services such as wire harness, sheetmetal , plastic injection to make up complete product for customers. Our factory has a number of lines of SMT,DIP, assembly and testing, well-equipped with brand-newly imported CZPT and CZPT CZPT machine, full-automatic solder paste printing machine, 10 temperature zone reflow oven and wave-soldering oven. Our factory is also equipped with AOI, XRAY, SPI, ICT, full-automatic splitting machine, BGA rework station and conformal coating machine, with air conditioner and dust-free workshop and lead-free manufacturing process. We have passed ISO9001:2015 international quality management system, IATF16949:2016 automotive industry quality management system and ISO13485:2016 medical device quality management system.

Our DIP CZPT PCB Assembly WORKSHOP View
 

 

Exhibition
Customers from America and European visit Grandtop for Electronics manufacturing service including BOX build, Printed circuit board Manufacturing and electronic pcb assembly

 

PCB Assembly Packing and Shipping

FAQ

Q1: What files do you use in PCB and assembly Quotation?
A1: Gerber, pcb. Auto CAD + Bill of Material

Q2: How do you make sure the quality?
A2: Our Product is all 100% tested including Flying Probe Test (for sample), E-test (mass) or AOI.

Q3: Can we visit your company?
A3: Of course! Welcome to visit our company, Grandtop is located in Hualun Tech Park, HangZhou, Guandong province, china.

Q4: What is the lead time?
Q4: It takes 3-5 working days for sample, 7-10 working days for batch production based on files and quantity.

Q5: Will you keep our information and files secret?
A5: Sure! It is our basic principle to keep business secrets to protect our customers’ rights and behalf.

Q6. How to work with you?
A6:    -Email and send us the PCB layout file, BOM list 
         – We will provide reply confirmation within 12 hours and reply to the offer within 3-5 days.
         – Waiting for your company to confirm the price, order and payment method.

         – We will start the production.

Contact Us

Sharon Duan

HangZhou Grandtop Electronics Electronics Co., Ltd
 
 

buy drive chain

Buying a drive chain requires a certain understading of its characteristics. This article discusses the different types of chains available, including Silent, Flat-top, and Duplex. By the end of this article, you should have a basic understanding of what each type of chain is for. First, here are some basic rules to keep in mind when shopping for a chain. To find the drive chain that best suits your needs, read on.

roller chain

Choosing the right roller chain for your drive chain depends on several factors. First, you have to determine the motor horsepower and rpm for the small drive sprocket. These values ​​determine the size of the chain and the number of teeth on the drive sprocket. Next, you need to determine the size of the conveyor chain, it can be the horizontal, vertical, or curved radius. Depending on your specific needs, you can also choose between two-strand or three-strand chains.
The roller chain of the drive chain must be properly tensioned. It should also have a proper lubrication system. Chain sag should not exceed 2 to 4 percent of the center distance (the distance between the 2 axles). Also, it shouldn’t make any unusual noises or obvious problems. One of the main reasons for excessive wear is the size of the load. Each chain has a specified maximum working load.
The maximum roller chain load must be less than 1/9 or 6 times the tensile strength of the drive chain. This amount should not exceed this threshold, as exceeding this level will result in chain plate fatigue. To avoid this, you should use a roller chain with a higher number of strands. Also, for high power requirements, a roller chain with a higher number of strands is recommended. One final tip for choosing a drive chain: it should not be used when there is a high risk of corrosion or rusting.
The materials used to manufacture roller chains vary according to the specific application. Common materials include steel and stainless steel. However, stainless steel is used in food processing machinery and other environments that require lubrication. Brass and nylon are also sometimes used. These factors determine the selection of suitable materials for the drive chain. If you are not sure which material to use, you can consult an industry professional. These professionals will help you choose the right chain for the job at hand.
chain

mute chain

The design of the silent transmission chain is as follows: the large chain plates 2 are stacked 1 on top of the other in the direction of the chain length. The connecting rods are connected by connecting pins 3. The outermost and central guide plates 4 are fastened to the connecting pins 3 by means of rivets. This construction helps minimize friction on the sliding surfaces of the chain. Chainplate 2 of the silent transmission chain is usually made of stainless steel.
The link plates are made of steel and have a rectangular shape with pinholes 41. These guide plates have no teeth but have curved surfaces that guide the silent drive chain on the sprockets. In addition, the rear portion of the guide plate is higher than the portion of the chainplate. This feature improves pitch balance. The present invention is also applicable to silent transmission chains using rockers.
When it comes to chain design, it’s important to remember that silent drive chains are often used in automotive engines, especially timing and cam drives. This type of drive reduces noise and vibration due to its low engagement angle and links engagement with the sprocket. However, these applications are not limited to timing and cam drives; they can also be used for front-wheel power transmission. For example, silent drive chains are designed to resemble those used in NASCAR racing engines.
The design of the silent drive chain is based on the structure of the roller chain. Its components are standardized and manufactured according to pitch. There are single-row and multi-row versions. Quiet chains, also known as inverted tooth chains, are shaped to reduce noise from stretching. It’s also designed to minimize the amount of friction caused by small changes in pitch. Its teeth don’t slide against each other, so the chain is smoother and more durable.

flat top chain

One of the important parts of the flat top chainplate system is the hinge pin, which is used to fix the chainplate and is responsible for the smooth and efficient conveying of the chainplate. There are several types of hinge pins, including single hinge pins and double hinge pins. The single hinge pin is suitable for the chainplate with a small span and small bearing capacity, and the double hinge pin is suitable for the chainplate with a large span and high bearing capacity.
The side bending flat top chain is suitable for conveying large and medium workpiece pallets. They can be made of steel or plastic, each with its own advantages. Both chainplates are designed to convey material smoothly. Side curved flat-top chains can be used on straight conveyors. They have a low coefficient of friction and can transport weights up to 1.2 kg/cm. They can also be combined with HD profiles.
Flat top drive chains are usually made of plastic material and come in 2 types: tabletop chains and buffer chains. They come in a variety of widths, but the most popular are standard widths, ranging from 3.25 inches to 12 inches. MatTop chains are usually shipped in 10-foot lengths. They come in different styles, but they all have the same basic specs. Tabletop chains are designed for general conveying, while pad chains are used for specific applications. Solid top chains are suitable for conveying bulk materials, while wide pad chains can handle large volumes of fluids and/or solid-solid mixtures.
These chain conveyors can be used to convey, connect or lift small items. This type of chain is especially useful in industries where the product is hot or greasy. The modular design of these chains allows them to be configured in 3 dimensions, making them suitable for production changes and transitions. They also help reduce slack in the chain. Flat top chains are commonly used in final assembly and mechanical or paint restoration in the automotive industry.

double chain

Besides the roller chain, another type of chain drive is the double drive chain. This type of chain consists of a series of short cylindrical rollers connected together by side links and driven by gears called sprockets. This type of chain is very reliable and only requires a tractor with a high rpm PTO. It is manufactured by CZPT and is available in many different sizes and finishes.
chain

Self-lubricating chain

Self-lubricating drive chains are the ideal solution for applications that do not require the relubrication of conventional chains. This maintenance-free roller chain features fully heat-treated components that increase the chain’s fatigue resistance and strength. It’s sintered alloy bushings are oil-impregnated, reducing the chance of premature wear and elongation. Its self-lubricating properties enhance its durability and work well even in hard-to-reach places.
CZPT self-lubricating roller chains feature preloaded sintered steel bearing pins and oil-impregnated sintered bushings. These chains are drop-in replacements for standard roller chains and run on the same sprockets as standard chains. In addition to being maintenance-free, self-lubricating roller chains are compatible with most existing sprockets and are ideal for demanding applications.
The O-ring chain concept was used to develop self-lubricating systems. It has 2 or more annular grease storage chambers. A self-lubricating bushing roller chain has an oil reservoir between its pin chain and the roller chainplate. A grease seal between these 2 plates isolates the moving parts and keeps the joints well lubricated. O-rings are made of special nitrile rubber, whose properties vary by application.
CZPT SLR conveyor chains and CZPT SLR drive chains have rollers on sintered bushings. CZPT SLR chains and SLR conveyor chains are self-lubricating and have a higher working load than standard ANSI chains. They may not be interchangeable with other self-lubricating chains from other manufacturers. Self-lubricating drive chains are the best solution for demanding industrial applications requiring heavy-duty, reliable conveying.

China factory Multi-Layer Customized PCBA Manufacturer and PCB Assembly Service     near me shop China factory Multi-Layer Customized PCBA Manufacturer and PCB Assembly Service     near me shop

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