Precision machined cold plate with internal coolant channels

CUSTOM THERMAL MANAGEMENT MANUFACTURING

Custom Vacuum
Brazed Cold Plates

Precision liquid cooling.
Engineered around your application.

CNC-machined channels and a brazed metal assembly bring coolant close to critical heat sources—helping you integrate effective cooling into a compact design.

Turn your cooling requirements into a manufacturing plan.

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Explore Our Capabilities →
  • Custom CNC Machining
  • Engineering Support
  • Quality-Focused

PRODUCT OVERVIEW

What Is a Vacuum Brazed Cold Plate?

A vacuum brazed cold plate joins machined metal components into a sealed liquid cooling assembly. Internal passages carry coolant beneath heat sources, moving heat away from critical contact surfaces.

Top Cover PlateMetal Base PlateCNC-Machined Cooling ChannelsCoolant InletCoolant OutletBrazed Joint EXPLODED VIEW · ILLUSTRATIVE STRUCTURE

How It Works

Coolant circulates through engineered channels and absorbs heat through the metal base. The fluid carries that heat to an external cooling system, helping protect temperature-sensitive components.

Where It Is Used

A compact, custom flow path supports power electronics, high-power modules and industrial equipment. Drawing-defined ports and mounting features simplify integration into your cooling system.

Explore a cooling structure that fits your equipment.

Discuss Your Requirements

KEY BENEFITS

Why Choose Vacuum Brazed Cold Plates?

Precisely machined flow paths and controlled metal joining support compact liquid cooling assemblies, giving your design more flexibility where heat and space are critical.

Efficient Heat Transfer

Channels bring coolant close to concentrated heat sources. A larger useful contact area helps transfer heat into the circulating fluid, supporting thermal performance within your defined operating conditions.

Complex Channel Designs

Machined passages accommodate serpentine, parallel or multi-layer configurations where feasible. This flexibility lets you direct coolant around mechanical constraints and toward the areas that need cooling.

Reliable Metal Joints

Qualified brazing can join compatible components into a sealed metal assembly. Agreed process controls and inspection criteria help address pressure-boundary requirements before the cold plate enters service.

Compact Integration

Internal passages combine the flow path and structural plate in one assembly. Drawing-defined dimensions preserve space for electronics, connectors and the other components in your equipment.

Custom Manufacturing

Plate geometry, mounting features and ports follow your specifications. A manufacturing review identifies practical machining and joining choices, helping your team integrate the finished component with fewer surprises.

Design Verification

Dimensions, pressure integrity and flow requirements can be checked against agreed criteria. Defining the test scope early gives procurement and engineering a shared basis for evaluating the delivered assembly.

Build the cooling features your application actually needs.

Review Your Cold Plate Design

INTERNAL STRUCTURE & COOLING DESIGN

Engineered Cooling Channels
for Effective Heat Transfer

Channel geometry, contact area and coolant distribution work together. Reviewing these features against heat load and available pump capacity helps balance heat removal with pressure drop.

Heat Source Contact SurfaceBrazed CoverCoolant InletCooling ChannelCoolant OutletBase Plate

01. Heat Collection

The contact surface conducts heat from your components into the metal base, creating a direct path toward the coolant.

02. Coolant Distribution

Internal passages route coolant beneath selected heat sources, helping the cooling layout follow the thermal demands of your equipment.

03. Heat Removal

Circulating fluid absorbs thermal energy and carries it to the external loop, supporting continued heat transfer at the component interface.

04. Flow Optimization

Channel dimensions are reviewed against coolant properties and allowable pressure loss, helping your team balance cooling performance and pumping requirements.

Share heat load, coolant and pressure-drop targets to start the review.

Discuss Your Cooling Channels

CUSTOM DESIGN & MANUFACTURING

Custom Vacuum Brazed Cold Plates
Built to Your Requirements

Your thermal, mechanical and installation requirements define the design. Drawing-based customization aligns the cooling structure with your equipment, helping reduce compromises during integration.

Aluminum cold plate with a machined serpentine coolant path
Product structure reference supplied in the brief.

Custom Dimensions

Specify length, width, thickness and mounting layout so the plate fits your available installation space.

Material Selection

Review alloy conductivity, coolant compatibility and brazing suitability to establish a practical material choice.

Cooling Channel Geometry

Tailor serpentine or parallel passages to your heat sources, with machining access and flow requirements reviewed together.

Inlet & Outlet Interfaces

Define port positions, threads and connection features to simplify routing within your cooling system.

Mounting Features

Integrate holes, pockets and precision interfaces to support repeatable alignment with the surrounding assembly.

Surface Requirements

Set flatness and roughness on critical contact surfaces to support the intended thermal interface and assembly fit.

Have a custom cold plate drawing or cooling requirement?

Send Your Drawing for Review

PRECISION MANUFACTURING PROCESS

From Precision CNC Machining
to Vacuum Brazed Assemblies

A coordinated route connects accurate channels, clean joining surfaces and final inspection. Each stage follows the approved requirements so machining and brazing decisions support the finished assembly.

01. Drawing & DFM Review

01. Drawing & DFM Review

Review materials, geometry and joint requirements before production, identifying manufacturing concerns while the design can still be refined.

02. Precision CNC Machining

02. Precision CNC Machining

Machine channels, bases, covers and interfaces to the approved drawing, establishing the geometry needed for assembly and coolant flow.

03. Cleaning & Preparation

03. Cleaning & Preparation

Prepare and inspect joining surfaces to control contamination, supporting the conditions required for a qualified brazed joint.

04. Vacuum Brazing

04. Vacuum Brazing

Join prepared components using compatible filler and a controlled thermal cycle. Specialized process scope is confirmed during quotation.

05. Finish Machining

05. Finish Machining

Complete specified post-braze operations and check critical features, helping recover the interfaces required for final equipment integration.

06. Inspection & Testing

06. Inspection & Testing

Evaluate dimensions and agreed pressure-boundary criteria, providing a defined basis for accepting the completed cold plate.

Accurate machining, suitable joint design and controlled joining conditions work together. In-house and partner processes are identified when the manufacturing scope is confirmed.

Process reference imagery illustrates the manufacturing route; equipment ownership is not implied.

Align machining, joining and inspection before your next production run.

Request a Manufacturing Review

TECHNICAL & ENGINEERING REQUIREMENTS

Key Engineering Parameters
for Vacuum Brazed Cold Plates

Defined thermal, hydraulic and mechanical inputs make a manufacturing review useful. Aligning the requirements early helps your team compare quotations and establish meaningful acceptance criteria.

Engineering Parameter Design Consideration
Heat Load Total dissipation, heat-source locations and local heat flux.
Coolant Type Specified fluid chemistry and material compatibility.
Coolant Flow Rate Operating flow and distribution requirements.
Pressure Drop Maximum allowable loss across the cold plate.
Operating Pressure Working pressure and applicable design requirements.
Thermal Resistance Target performance with defined boundary and test conditions.
Surface Flatness Contact-surface tolerance and measurement conditions.
Surface Roughness Specified Ra on critical mounting or contact surfaces.
Leakage Requirement Acceptance limit, test medium and test method.
Material & Dimensions Alloy, plate envelope, tolerances and interface locations.

Thermal Performance

Heat-source distribution, inlet temperature and contact area define the conditions for evaluating cooling performance.

Hydraulic Performance

Channel geometry is considered alongside fluid properties and flow rate to keep pressure loss within your system budget.

Mechanical Precision

Flatness, finish and port positions support thermal contact and assembly fit when defined on the approved drawing.

Need a manufacturing review for your cold plate design?

Submit Technical Requirements

MANUFACTURING PROCESS COMPARISON

Vacuum Brazing vs. Other
Cold Plate Manufacturing Methods

Each joining method offers a different design envelope. Comparing channel geometry, alloy compatibility and inspection requirements helps you select a route that fits your assembly.

Feature Vacuum Brazing Friction Stir Welding Tube-in-Plate
Joining Method Metallurgical joints using filler metal Solid-state welding Embedded tubing
Channel Geometry Complex passages with suitable joint design Machined channels with accessible weld paths Defined by tube bend radius and routing
Multi-Layer Construction Possible with compatible materials and design Dependent on weld access and assembly design Generally not typical
Design Considerations Alloy and filler compatibility; thermal distortion Tool access, backing and weld geometry Tube contact, routing and interface quality
Typical Use Integrated assemblies with complex internal paths Sealed machined cold plates Simpler tube-based cooling paths

When to Consider Vacuum Brazing

Multiple joined components and intricate passages can make vacuum brazing a useful option. A compatibility and distortion review helps establish whether the structure suits the process.

Let the Design Guide the Process

Pressure requirements, quantity, channel geometry and acceptance criteria should be evaluated together. This keeps the manufacturing choice aligned with your actual operating conditions.

Choose a joining route around your application and drawing.

Discuss Your Cold Plate Design

INDUSTRIES & APPLICATIONS

Vacuum Brazed Cold Plates
for Demanding Industrial Applications

Custom channels and mechanical interfaces connect liquid cooling to the demands of your equipment. Application-specific design helps address concentrated heat within a defined installation space.

AI Servers & Data Centers

AI Servers & Data Centers

Compact cold plates bring coolant to high-power computing assemblies, supporting heat removal where rack density limits the available cooling space.

EV Inverters & Power Electronics

EV Inverters & Power Electronics

Drawing-defined mounting surfaces and ports support integration with power modules, helping carry heat from switching components into the cooling loop.

Semiconductor Equipment

Semiconductor Equipment

Precision contact surfaces and controlled flow paths support temperature-sensitive equipment, with requirements matched to the process and surrounding assembly.

Laser Equipment

Laser Equipment

Custom passages support cooling around laser sources and power modules, helping equipment designers address local heat loads without sacrificing mechanical fit.

Energy Storage Systems

Energy Storage Systems

Application-specific plates can serve power conversion assemblies, connecting the thermal interface to a liquid loop within the equipment layout.

Industrial Automation

Industrial Automation

Custom mounting and fluid connections support drives and automated equipment, helping accommodate cooling within a constrained machine envelope.

Match your equipment requirements to a custom liquid cooling assembly.

Discuss Your Application

QUALITY CONTROL & INSPECTION

Quality Inspection for Reliable
Cold Plate Manufacturing

Material, dimensional and pressure-boundary requirements are reviewed as one quality plan. Agreed test methods give your team a clear basis for evaluating the assembly before installation.

Coordinate measurement of a precision machined metal component
Inspection reference image supplied in the brief.

Dimensional Inspection

Check critical dimensions and interface locations against approved drawings to support assembly compatibility.

Leak Testing

Agree the method and allowable leakage so the sealing check reflects your application requirements.

Pressure Testing

Specify test pressure and conditions to evaluate the pressure boundary against the defined quality plan.

Flatness & Surface Finish

Review contact surfaces against drawing tolerances to support fit and the intended thermal interface.

Brazed Joint Inspection

Select suitable inspection methods and acceptance criteria to address joint quality beyond leakage alone.

Inspection Records

Agree traceability and reporting requirements before production so the documentation supports your incoming review.

Quality requirements should be defined before production. Leak testing, pressure testing and joint inspection evaluate different aspects of the assembly.

Align test methods, acceptance limits and records before manufacturing.

Discuss Your Quality Plan

ENGINEERING SUPPORT & PROJECT WORKFLOW

From Your CAD Drawings
to Finished Cold Plates

A defined workflow connects your drawings to process planning, samples and inspection. Clear review points help resolve manufacturing questions before they affect production.

01. Submit Your Drawings

Share 2D drawings, 3D CAD and key requirements to establish a useful starting scope for the review.

02. Engineering & DFM Review

Evaluate alloy compatibility, channels and joint design to identify practical machining and joining options.

03. Quotation & Process Planning

Confirm manufacturing scope and inspection requirements so the quotation reflects the component you need.

04. Prototype Manufacturing

Produce samples to the approved plan so your team can assess fit and agreed performance criteria.

05. Inspection & Validation

Review specified measurements and tests before approval, helping align expectations for repeat production.

06. Production & Delivery

Coordinate production, documentation and protective packaging around the agreed order requirements.

What to Prepare for a Faster RFQ

  • 2D drawings and 3D CAD files
  • Material specifications
  • Quantity and expected annual volume
  • Thermal load and coolant conditions
  • Pressure and leakage requirements
  • Critical tolerances and inspection scope

Start with the drawings and requirements you already have.

Start Your Custom Cold Plate Project

OUR MANUFACTURING CAPABILITIES

Precision CNC Manufacturing
for Custom Liquid Cooling Components

JBT supports drawing-based manufacturing of precision metal parts. Coordinating machining, finishing and specialized joining helps turn your cooling design into components ready for integration.

CNC machining workshop with a row of enclosed machine tools
Manufacturing reference supplied in the brief; facility details are confirmed during supplier review.

Precision CNC Machining

Machine channels, cavities and mounting surfaces to drawing requirements, providing the geometry needed for your cooling assembly.

Complex Metal Components

Coordinate custom bases, covers and interfaces so the individual parts fit the planned manufacturing route.

Dimensional Quality Control

Check critical features and surface requirements against the approved specification to support incoming acceptance.

Surface Finishing & Assembly

Review specified finishes and assembly steps together so the delivered component matches your integration needs.

CNC Machining

CNC Machining

Precision features support drawing-defined channels and interfaces.

Precision Metal Components

Precision Metal Components

Custom geometries connect the cooling structure to the mechanical assembly.

Quality Inspection

Quality Inspection

Project-specific methods establish how critical requirements are checked.

Manufacturing and inspection reference images. Equipment, certification and test availability are confirmed for each project.

Review the production route for your custom liquid cooling components.

Talk to Our Manufacturing Team

WHY WORK WITH JBT

Why Choose JBT
for Your Custom Cold Plate Project?

A suitable manufacturing partner connects drawing requirements, process decisions and clear communication. This helps your team evaluate technical fit alongside the commercial quotation.

Machined metal cold plate with a complex serpentine channel
Precision CNC machining setup for metal components

Precision Manufacturing Experience

CNC machining knowledge supports practical decisions on channels and interfaces, helping your design move toward a defined production route.

Drawing-Based Customization

Your CAD files, tolerances and material requirements establish the scope, keeping manufacturing aligned with the component you intend to integrate.

Quality-Focused Process

Inspection requirements are considered alongside production planning, giving your team a clear basis for accepting critical features.

Clear Technical Communication

Drawing questions and process limits are clarified early, helping overseas engineering and purchasing teams make informed decisions.

Prototype to Production Support

Sample review establishes an approved specification that can guide repeat orders and reduce uncertainty as your project progresses.

Looking for a manufacturing partner for your next cold plate project?

Contact Our Manufacturing Team

FREQUENTLY ASKED QUESTIONS

Frequently Asked Questions
About Vacuum Brazed Cold Plates

Get the inputs you need for a more complete RFQ, from material and channel design to inspection requirements and production planning.

What is a vacuum brazed cold plate?

It is a liquid cooling component made by joining compatible metal parts with filler under controlled vacuum brazing conditions. Internal machined channels carry coolant beneath heat sources, helping remove heat from a compact assembly.

Can you manufacture cold plates from our drawings?

JBT supports drawing-based manufacturing. Share 2D drawings, 3D CAD and critical requirements so machining access, joint design and inspection scope can be reviewed before quotation.

What materials can be used for vacuum brazed cold plates?

Material selection depends on alloy and filler compatibility, thermal requirements and coolant chemistry. Suitable aluminum alloys are common; other materials require an application-specific joining review before the route is confirmed.

Can the internal cooling channels be customized?

Yes, channel layouts can be reviewed around your heat sources, installation space and flow requirements. Manufacturability, sealing surfaces and allowable pressure drop guide the final geometry.

What information do you need for a quotation?

Send drawings, material, quantities, critical tolerances and any pressure, leakage or thermal requirements. Indicate the expected schedule and documentation needs so the quotation covers the intended scope.

How are cold plates inspected and tested?

The agreed plan may cover dimensions, flatness, surface finish, leakage, pressure and brazed joint inspection. Test conditions and acceptance limits are defined for the application before manufacturing.

Do you support prototypes and volume production?

Prototype and recurring production requirements can be reviewed for your design and quantity. Sample approval establishes a common reference before the project moves into repeat manufacturing.

What is the lead time for custom cold plates?

Lead time depends on material availability, geometry, joining, inspection and order quantity. A project-specific schedule is confirmed with the quotation once the manufacturing requirements are clear.

Have a drawing or requirement that needs a closer review?

Ask Our Manufacturing Team

CUSTOM COLD PLATE RFQ

Get a Quote for Your
Custom Vacuum Brazed Cold Plates

Send your drawings and cooling requirements for a manufacturing review. A defined technical scope helps you obtain a quotation that reflects the parts, inspection and quantities your project needs.

  • Drawing-Based Manufacturing Review
  • Custom CNC Machining Support
  • Clear Technical Communication
  • Prototype & Production Planning

Include material, expected quantity and critical thermal or pressure requirements. Our team can clarify the remaining inputs during the project review.

Request a Custom Quote

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Have a drawing or liquid cooling project in development?

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