Southern Machinery

SMT & THT PCB Assembly Automation for EMS Factories

What problem we can help you solve?

How to build a LED assembly line?
How to choose a cost-effective LED SMT line?
What solution can reflect the quickest ROI (Return on Investment)?
What’s the true one stop solution?
What is the total cost for building a full LED SMT line?
In what situation should you choose a semi auto solution?

We welcome any of your inquiries, questions or concerns. Contact us to find out how to greatly save on your manufacturing costs, and increase your benefits.

S-320 one stop led smt line solutions from Xiaochan Liang

chan@smthelp.com
CLICK HERE TO SEND ME A EMAIL

Parts of common UIC spare parts list.
[table id=35 /]

For spare parts we can supply:
1.All of the wearing spare parts of SMT/AI, such as UIC ,Samsung ,Fuji,Juki,Panasonic and so on.
2.Used/New UIC parts which almost can’t be found at the market
chan@smthelp.com
CLICK HERE TO SEND ME A EMAIL

Southern Machinery provide the whole line installation ,training and after sales services. Improve efficiency , reduce cost.

The wole SMT line process including: Printer, pick &place ,reflow oven, conveyor.

One stop improve the whole line pruduction capacity , with line balance.

Overall considering to improve product quality , not just by a single machine.

It is the best solution proved by most of our customers.

Importance of one stop solution from Xiaochan Liang

S 535 reflow oven from Xiaochan Liang

Led glue filling machine from Xiaochan Liang

Outside draw off vacuum sealing machine from Xiaochan Liang

Dedicated to provide customers with one-stop service, research and development, production, testing, sales, after-sales service, provide the whole line sales and service .

According to the needs of customers, with our professional technology to provide customized service.

1.PCB AI/SMT Equipment Manufacture.Offering comprehensive solution in AI/SMT Technology

2.For different components process insert /Pick& Place , like Radial and Axial components ; odd form components (Rivet,Pin,Switch,Connector,Terminal and so on
);SMD LED components (0402-7474 SMD components, 15mm IC, and different capacitance,resistance,IC,QFP,SOP,SOT,CSP and so on.)

3.To meet the needs of different industries

(1)Electrical industries appliances：Air conditioner, Television, Microwave, Electric cooker, Electric kettle, Induction cooker etc.

(2)Power supply appliance: Vehicle power supply, Energy saving power supply, Ballast etc.

(3)LED application：LED lighting, LED display, LED lights, LED control systems, LED luminous characters.

(4)Vehicle industries application: Vehicle power supply, Vehicle light, Car audio etc.

(6)Energy saving lighting industries application: Industrial lighting, outdoor lighting, street lamp, floodlight etc.

(7)Other electronic industries application: Electronic watch, Electronic Instrument, electronic spare parts etc.

4.AI/SMT spare parts of different brand machine .

With the original drawing to provide high copy spare parts , To a large extent save much cost for customer ,and keep the spare parts life.

5.Have the most extensive contacts network, for customers to find all kinds of second-hand accessories.

Southern machinery catalog from Xiaochan Liang

AI.SMT machine spare parts for Southern Machinery from Xiaochan Liang

Often some customers asked: how do your price so expensive, and others are so cheap, it is shown in figure, the same but vary widely, the era of cheap has ended, and a points the price is a goods, to the low price is not necessarily don’t earn money, also not necessarily price is high profits, because all the products on the market, there are 3,6,9 points, the original cost is the final price guide!

After sales part of 41132400/41132407 A UIC Switching Servo Amp Assy,we get customer’s good feeback.

Before sale customer used parts, the work we must do is below:

1.Comfirm our parts is in good working

2.Take part’s photo for customer to comfirm

3.Test the parts again before delivery and take video

4.Delivery to customer in a short time to keep customer’s machine starting good working.

If you want to replace your wrong part with a used parts ,if you have any worry about the used parts ,just inquiry us ,we must provide you with the part in a very good status.

Auto insertion丨PCB Assembly丨surface mount technology

PCB Assembly

Technical innovation Purpose

Reduces the labor intensity

To reduce the loss of equipment efficiency cause by operator sabotage

Save the operator, one person can operate multiple machines

In－line SMT production line

More operating security

Full Automatic production mode

UIC In-line Solution from Xiaochan Liang

Fully automatic dispensing system bench top automatic visual glue dispenser Automatic visual glue dispenser is used to Chevrons, fridge magnets, key chains, power supply, cell phone,energy saving light, LED, DVD, DC, Switch, Connector, relay and other industries needing fluid glue solder.

Feature of Glue dispensing equipment

1 Improve the production efficiency,reduce artifical loss.

2 Equipped with high performance CCD vision positioning system,visual dispensing route,improve accuracy.

3 Use industrial computer to control operating system,

4 According to the different artifacts, choose suitable LED light source for lighting.

5 Adopt servo motor, ball screw drive.

6 It can arbitrary match with needle valve, diaphragm valve,screw valve, pnematic injection valve, piezoelectric injection valve.

S-400SP Desk-top visual dispenser from Xiaochan Liang

Acceptability for Electronic Assemblies :Soldering Acceptability Requirements

Target-Class1,2,3
.Solder fillet appears generally smooth and exhibits good wetting of the solder to the parts being joined.
.Outline of the parts is easily determined.
.Solder at the part being joined creates a feathered edge.
.Fillet is concave in shape.

See pic for examples of soldering anomalies.

Acceptable-Class1,2,3
.There are materials and processes,e.g.,lead free alloys and slow cooling with large mass PCBs, that may produce dull
matte,gray,or grainy appearing solders that are normal for the material or process involved.These solder connections
are acceptable.
.The solder connection wetting angle (solder to component and solder to PCB termination do not exceed 90°(Figure).
.As an exception,the solder connection to a termination may exhibit a wetting angle exceeding 90°(Figure)when it is

created by the solder contour extending over the edge of the solder able termination area or solder resist.

Figures below illustrate acceptable solder connections with various solder alloys and process conditions.

SnPb Solder； No Clean Process SnAgCu Solder;No Clean Process

SnPb Solder;Water Soluble Flux SnAgCu Solder;Water Soluble Flux

SnPb Solder; Water Soluble Flux SnAgCu Solder;Water Soluble Flux

SnAgCu Solder;No Clean Process,N2 Reflow SnAgCu Solder,No Clean Process;Air Reflow

SnPb Solder;No Clean Process SnAgCu Solder;No Clean Process

SnPb Solder SnAgCu Solder

SnPb Solder ; OSP Finish SnAgCu Solder; OSP Finish

SnAg CuSolder SnAg CuSolder

SnAgCu Solder SnAgCu Solder

Soldering Anomalies-Exposed Basis Metal

Exposed basis metal on component leads,conductors or land surfaces from nicks,scratches,or other conditions cannot exceed
there quirements of 7.1.2.3 for leads and 10.2.9.1 for conductors and lands.
Component leads,sides of land patterns,conductors,and use of liquid photo image able solder resist,can have exposed basis
metal per original designs.
Some printed circuit board and conductor finishes have different wetting characteristics and may exhibit solder wetting only to
specific areas. Exposed basis metal or surface finishes should be considered normal under these circumstances,provided the
achieved wetting characteristics of the solder connection areas are acceptable.

Acceptable-Class 1,2,3
.Exposed basis metal on:
.Vertical conductor edges.
.Cut ends of component leads or wires.
.Organic Solderability Preservative (OSP) coated lands.
.Exposed surface finishes that are not part of the required solder fillet area.

Acceptable-Class 1

Process Indicator-Class 2,3

.Exposed basis metal on component leads,conductors or land surfaces from nicks or scratches provided conditions

do not exceed the requirements of7.1.2.3 for leads and 10.2.9.1 for conductors and lands.

Soldering Anomalies-Pin Holes/Blow Holes

Acceptable-Class1
ProcessIndicator-Class2,3

.Blowholes (Figures 1,2),pinholes (Figure 3),voids (Figures 4,5),etc.,providing the solder connection meets all other requirements.

1 2

3 4

Defect-Class 2,3

Solder connections where pin holes,blowholes,voids,etc.
reduce the connections below minimum requirements(not shown).

Soldering Anomalies-Reflow of Solder Paste

Defect-Class1,2,3
.Incomplete reflow of solder paste.

Soldering Anomalies-Nonwetting

IPC-T-50 defines nonwetting as the inability of molten solder to form a metallic bond with the basis metal.In this Standard,that
includes surface finishes.

Defect-Class 1,2,3
.Solder has not wetted to the land or termination where solder is required.
.Solder coverage does not meet requirements for this termination type.

Soldering Anomalies-Dewetting

Defect-Class 1,2,3
.Evidence of dewetting that causes the solder connection to not meet the SMT and thru-hole solder fillet requirements.

Soldering Anomalies-Excess Solder-Solder Balls/Solder Fines

Solder balls are spheres of solder that remain after the soldering process.Solder fines are typically small balls of the original

solder paste metal screen size that have splattered around the connection during there flow process.

Target-Class 1,2, 3
.No evidence of solder balls on the printed wiring assembly.

Acceptable-Class 1,2,3
.Solder balls are entrapped/encapsulated and do not violate minimum electrical clearance.
Note:Entrapped/encapsulated/attached is intended to mean that normal service environment of the product will not cause a solder ball to become dislodged.

Defect- Class 1,2,3
.Solder balls violate minimum electrical clearance.
.Solder balls are not entrapped in no-clean residue or encapsulated with conformal coating,

or not attached(soldered)to a metal surface.

Soldering Anomalies-Excess Solder-Bridging

Defect-Class 1,2,3
.A solder connection across conductors that should not be joined.
.Solder has bridged to adjacent noncommon conductoror component.

Soldering Anomalies-Excess Solder-Solder Webbing/Splashes

Defect-Class 1,2,3
.Solder splashes/webbing.

Soldering Anomalies-Disturbed Solder

Surface appearance with cooling lines as shown in Acceptable pic is more likely to occur in lead free alloys and is not a disturbed solder condition.

Defect-Class 1,2,3
Characterized by stress lines from movement in the connection (SnPb alloy).

Soldering Anomalies-Fractured Solder

Defect-Class 1,2,3
Fractured or cracked solder.

Soldering Anomalies-Solder Projections

Defect-Class 1,2,3
.Solder projection,figure 1,violates assembly maximum
height requirements or lead protrusion requirements.
.Projection,figure 2,violates minimum electrical clearance(1).

1 2

Soldering Anomalies-Lead Free Fillet Lift

Acceptable-Class 1,2.3
.Fillet lifting-separation of the bottom of the solder and the
top of the land(primary side of plated-through hold connection).

Process Indicator-Class 2
Defect-Class3

.Fillet lifting-separation of the bottom of the solder and the top of the land(secondary side of plated-through hold connection)(not shown).
Defect-Class 1,2,3
.Fillet lifting damages the land attachment.

Soldering Anomalies-Hot Tear/Shrink Hole

Acceptable-Class1,2,3
.For connections made with lead free alloys:
.The bottom of the tear is visible.
.The tear or shrink hole does not contact the lead,land or
barrel wall.

Defect-Class 1,2,3
.Shrink holes or hot tear in connections made with SnPb solder alloys:

.For connections made with lead free alloys:
.The bottom of the shrink hole or hot tear is not visible.
.The tear or shrink hole contacts the lead or land.

end