Simultaneous, Precise Plastics Joining
for Parts Demanding Particulate-free and
Aesthetically Clean Weld Joints
Page 2
BRANSON Contoured
Laser Technology (CLT)
Maximizes Product Integrity and Cost-effectiveness
• Simultaneous weld joint illumination:
Branson’s patented technology enables the heating and
plastification of the entire weld line at once.
• High-volume production capability:
Contoured Laser Technology’s 0.5 to 5-second weld
times help deliver lower-cost production, less energy
consumption, with no compromise to product quality
or performance.
• High-efficiency SmartFiber optic bundles:
CLT employs SmartFiber optics along with application-
specific wave guides with reflective coatings to deliver
highly efficient laser energy for optimum results.
• Clean, clear, weld-bead aesthetics:
The clean welds created with Branson CLT are virtually free
of particulates that can complicate downstream manufac-
turing, or compromise aesthetics and product performance.
Fiber optic bundles transmit laser energy through a wave guide that
creates simultaneous, uniform laser light output, contoured to the shape
of the weld joint.
• Application flexibility:
Standard CLT systems are suitable for weld lines up to
1000 mm. They can be configured to “clean-weld” small
applications, such as printer ink cartridges, or larger
applications, such as automotive instrument clusters and
lighting assemblies with complex weld areas. Custom
applications are virtually limitless.
• Efficient welding of pre-assembled parts:
For applications that require internal components to be
held in place during welding, CLT allows for parts to be
placed into the welder in the same position and orienta-
tion as the final, assembled position demands.
• A broad range of weld materials:
CLT has successfully welded a broad range of materials,
including PC, PA, PS, ABS, Elastomers (TPU/TPE), PP, HDPE,
LDPE, PETG, PBT, PPS, and PMMA.
• Precision meltdown control:
The CLT 2000X actuator ensures precise part collapse
(meltdown) and is available with manual or automated
operation in varying configurations to properly match
the application.
Page 3
How Contoured Laser Technology (CLT) Works
STTlr® Welding
Branson CLT employs an exclusive
process called Simultaneous Through-
®
Transmission Infrared
Simultaneous welding equates to speed,
uniform collapse, and low localized
power density.
(STTIr) welding.
wave
guide
optics
fiber
tool
With STTlr
®
, laser energy produced by
laser diodes passes through one plastic
component (the transmissive compo-
nent), and then is absorbed at the bond
line by the second component (the
absorptive component). This absorption
heats and plasticizes the entire welding
surface simultaneously while the two
parts are held together under precision-
controlled pressure. The result: a strong,
uniform weld, with less risk of rejects
due to surface imperfections, than tradi-
tional trace laser welding can produce.
laser
beam
In addition, CLT laser energy can be
adjusted around the weld profile to
optimize weld results. CLT units also
offer quick-change capability that
allows for fast exchange of tools for
different applications.
joining
zone
absorbent
material
Laser-emitting wave guides conform exactly to
the contours of the part surfaces they are to join,
melting the entire interface at once for fast,
uniform weld joints.
CLT can be configured with one laser bank with 125
Watts of power for small parts (e.g., ink cartridges)
or with up to four laser banks with 500 Watts of
power for larger parts (e.g., instrument clusters).
transparent
material
Medical Filtration Automotive Irrigation Ink Cartridge
Page 4
Branson System Controllers Provide Flexibility and Ease of Use
Branson offers two standard models
of CLT welder controllers. The 3G is a
compact bench-top controller designed
to interface with a 2000X actuator
and 1 or 2 CLT laser banks capable of
delivering up to 250 Watts of laser power.
The 3I is a free-standing controller
designed to interface with a 2000X
actuator and up to 4 CLT laser banks
capable of delivering up to 500 Watts
of laser power.
Both systems allow operators
to control and monitor the
following functions:
• Time and distance welding modes
(both collapse and absolute)
• Force measurement
• Process limits with alarms
3G Welder Controller
• Multiple preset memory
• Graphing and weld history data
• Multiple languages
3I Welder Controller
Optional: In some cases, a custom system adapted to special applications can be offered.
Control Interface
WELD SETUP
Weld Mode
Trig Force
Feedback Value
Act Clr Output
Weld ResultsMain MenuWeld SetupGraphs
User-friendly interface allows for the control and monitoring of
time and distance of welding modes and pressure measurements.
> Time
= 756N
= 1
> Off
Weld Toolmap
Hold Time
Intensity
Suspect Limits
Pg 1 of 2
= 0.50s
= 100%
> Off
> >
Tool Map
TOOL MANAGEMENT – WELD CHANNEL
11
10
8
4
Weld ResultsMain MenuWeld SetupGraphs
An innovative tool map feature allows for control of discrete tooling segments via an on-screen graphic representation of the tool.
14
21218
1
Exit
8
166
139
77
155
173
Front of tool
Contoured Laser
Page 5
Precise, High Volume, High Efficiency
Clean Plastic Welding
CLEAN
VIBRATION
TECHNOLOGY
As one of Branson’s leading-edge clean plastics-joining technologies, which include
Clean Vibration Technology and Contoured Infrared Technology, CLT meets the
growing trend toward applications using performanceengineered materials with increasing geometric complexity.
CLT allows designers to incorporate visible, virtually
particulate-free weld lines into the product design for
superior aesthetics, maximum product integrity,
and enhanced production efficiency.
Contoured Laser Technology (CLT) is another
Branson clean plastics-joining technology ideal for
welding 2D and 3D-contoured parts. It is capable
of high-volume production of small to medium
parts with excellent weld-to-weld uniformity using
rapid weld times of 0.5 to 5 seconds.
CONTOURED
INFRARED
TECHNOLOGY
CONTOURED
L A S E R
TECHNOLOGY
CLEAN JOINING TECHNOLOGIES
Medical Fluidic Device
Food Dispenser
Actuator
Sensor
Page 6
Contoured Laser
The Branson Advantage
BRANSON is committed to not only engineering and supplying
CLT equipment to meet your needs, but also to providing
applications support, employee training, troubleshooting, and
ongoing customer service so that your equipment continually
operates as expected. To learn more about Contoured Laser
Technology, contact your Branson representative or call the
Branson office in your area.
True Global Support & Service
BRANSON Contoured Laser Technology is backed by our
proven commitment to providing superior global technology,
support, and customer service through a worldwide network
of 70 offices. Branson is part of the Industrial Automation
division of Emerson, a diversified international manufacturing
and technology company committed to developing tech-
nological breakthroughs that enhance the performance
of a wide range of products and processes.
Specifications
Branson Laser Bank
Wavelength: 980 nm
Laser Power: 25 Watts per channel, 125 Watts total per laser bank
All specifications subject to change without notice. All dimensions are nominal.
Note: All sales shall be subject to the Supplier’s terms and conditions of sale as described in Branson’s quotations and sales contracts.