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Precision manufacturing. Stronger together.Manufacturing Services & Support

From prototype to production, coordinated manufacturing solutions for your custom parts.

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Solutions

Thermal Technologies

Choose air- or liquid-cooling components around your thermal and mechanical requirements.

Stepped aluminum heat sink with copper contact insert — illustrative concept
Explore Thermal Technologies

Heat Sinks

Liquid Cooling

AI & Data Center Cooling

Manufacturing support for your cold plates, manifolds and cooling assemblies.

Processor cold plates and distribution manifold — illustrative concept
Explore AI Cooling

AI Compute Cooling

Distribution & Assembly

AI Cooling Interfaces
  1. Cold PlateHeat-source interface
  2. ManifoldCoolant distribution
  3. CDU InterfaceConnection requirements
  4. Rack / LoopAssembly integration
Review component fit across your cooling system.

Industry Cooling Solutions

Find components for your power electronics, energy, laser and telecom application.

Machined power module cooling plate — illustrative concept
Explore Industry Cooling

Power Electronics

EV & Energy

Laser & Telecom

Industries

High-Tech & Electronics

Components for your electronic systems.

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Applications & Project Inquiries

Precision & Advanced Systems

Start with your functional and quality requirements.

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Applications & Project Inquiries

Industrial & Energy

Build around your operating environment.

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Applications & Project Inquiries

Materials

From prototype to production, review material performance, manufacturability and cost for your part.

Engineering Plastics

Match your polymer to function, process and environment.

→
ABS — illustrative material conceptABSReview enclosure and molding needs›Polycarbonate (PC) — illustrative material conceptPolycarbonate (PC)Discuss clarity and impact needs›Nylon (PA) — illustrative material conceptNylon (PA)Review moisture and wear conditions›POM / Acetal — illustrative material conceptPOM / AcetalReview fit and sliding features›PEEK — illustrative material conceptPEEKDiscuss operating conditions›PTFE — illustrative material conceptPTFEReview friction and chemical exposure›ULTEM / PEI — illustrative material conceptULTEM / PEIDiscuss thermal and electrical needs›

Elastomers & Specialty Materials

Confirm grade availability and application requirements.

→
Elastomers
Silicone / LSR — illustrative material conceptSilicone / LSRDiscuss flexible component needs›TPU / TPE — illustrative material conceptTPU / TPEReview flexibility and processing›EPDM — illustrative material conceptEPDMReview weathering and chemical exposure.›NBR — illustrative material conceptNBRReview oil and fuel exposure.›FKM — illustrative material conceptFKMReview temperature and chemical exposure.›
Specialty Materials
G10 / FR4 — illustrative material conceptG10 / FR4Review insulation and laminate needs›Composites — illustrative material conceptCompositesReview stiffness, weight and laminate.›Customer-Specified MaterialsConfirm your grade and requirements.›Other Specialty MaterialsDiscuss your application and grade.›
Resources

Design & Engineering

Practical guidance for your part geometry and material decisions.

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Cost & Planning

Prepare your process, budget and sourcing questions.

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Learn & Proof

Build your knowledge before production.

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About Us

About LK MFG

Learn who we are and how we operate.

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Get in Touch

Find our U.S. support team or start a conversation.

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sales@lkmfg.com (945) 409-1013

1750 Briercroft Ct, Suite 204
Carrollton, TX 75006, USA

YOUR INTERFACES · YOUR CONDITIONS · YOUR ACCEPTANCE

Manifolds & CDU Components
for Your Port Schedule, Cleanliness & Assembly Boundary

For your manifolds and CDU components, define the machined manifold, connection block, bracket and selected fittings included in the order. Review port geometry, wetted materials, cleaning and component acceptance before system integration.

Illustrative manifolds & cdu components assembly concept, not a customer part

Illustrative component concept

Drawing

Critical geometry & interfaces

Materials

Grades, condition & compatibility

Interfaces

Defined route & final state

Evidence

Agreed methods & records

Start with Your Component List and Port Schedule

Define the supplied CDU parts, controlled ports, cleaning state and sample records.

  • List supplied manifolds, blocks, brackets and fittings
  • Share your controlled port schedule and installation envelope
  • Review wetted materials and cleaning acceptance
  • Agree component and platform acceptance separately
  • Confirm the sample and acceptance evidence
Illustrative your supplied part list concept, not documentary company or customer photography

Your supplied part list

Identify the manifold, connection block, bracket and any selected fittings or seals included in your custom CDU components quote. Define the supplied CDU fluid interface components and separate component inspection from complete coolant distribution unit integration and commissioning.

Illustrative controlled port schedule concept, not documentary company or customer photography

Controlled port schedule

Specify CDU manifold port threads with the selected standard, designation, orientation, engagement and sealing method. List every branch location, mating fitting, plug and required tool clearance on the controlled drawing.

Illustrative wetted material and cleaning concept, not documentary company or customer photography

Wetted material and cleaning

Review CDU component material compatibility against your coolant formulation, operating temperature, connected metals, coatings, seals and cleaning chemicals. Define the final protected state before assembly.

Illustrative drawings and acceptance concept, not documentary company or customer photography

Drawings and acceptance

Your CDU component drawing requirements should include the released revision, datums, passages, closures, final finish, quantities and required reports. A CDU manifold prototype should resolve the actual mounting and mating interfaces before repeat supply.

Illustrative engineering concepts

Define 4 Part Scopes Before Your CDU Component Order

Select the actual machined and assembled parts in your purchase scope. Complete coolant distribution unit design and integration require their own agreement.

Illustrative engineering concepts

Turn Your CDU Part List into a Controlled Manufacturing Scope

PART LIST + PORT SCHEDULE↓COMPONENTS & CONNECTIONS↓SAMPLE & AGREED CHECKS↓APPROVED FINISHED PART

CDU component manufacturing starts with the individual released drawings and the delivered assembly state. CDU manifold machining should identify drilled passages, cross-hole closures, port access and cleaning requirements. CDU connection block machining needs controlled datums, seal lands and mating hardware; CDU mounting bracket manufacturing needs material, locating features, loads and fasteners. A liquid cooling manifold assembly quote should list fittings, plugs, seals and purchased items separately.

  • Define the supplied parts, material and connection boundary.
  • Review your critical interfaces in their final production state.
  • Agree sample evidence before repeat-order release.
Compare thermal technology routes →

Compare Your Wetted Material References

Choose material with your coolant, connected metals, seals, mass and manufacturing route in view. These stock references do not establish corrosion compatibility, a pressure rating or manifold flow performance.

Thermal conductivity reference

6061-T6 · 25°C167 W/(m·K)
304 / 1.4301 · 20°C15 W/(m·K)
316L / 1.4404 · 20°C15 W/(m·K)

A header distributes coolant; higher bulk conductivity alone does not make its branches more balanced.

Density reference

6061 aluminum2.7 g/cm³
304 stainless steel7.9 g/cm³
316L stainless steel8.0 g/cm³

Estimate mass using your finished volume. Confirm exact grade, product specification and required condition with the purchasing documents.

6061 selected composition limits · weight %
Grade / European referenceSiFeCuMnMgZnAl
6061 · EN AW-6061 · AlMg1SiCu0.40–0.80≤0.700.15–0.40≤0.150.80–1.20≤0.25Balance

6061 additional selected limits: Cr 0.04–0.35%, Ti ≤0.15%; other elements ≤0.05% each / ≤0.15% total. Hydro reference, not a finished manifold certificate.

Stainless steel selected typical composition · weight %, not specification limits
Reference gradeEuropean identifierUNSCCrNiMo
304EN 1.4301S304000.0418.18.1—
316LEN 1.4404S316030.0217.210.12.1

Outokumpu Core/Supra Table 1 typical composition and Table 7 physical references. Dash means not listed in the selected summary, not zero. European identifiers aid drawing review; substitutions and final purchasing limits require approval.

Sources: Hydro 6061 → · Outokumpu Core 304 → · Outokumpu Supra 316L →

3 Views for Your Manifold and CDU Component Acceptance

Separate a branch-flow sum, the supplied test boundary and complete-unit responsibility. The numeric graphic is chosen arithmetic, not an operating rating, balanced-flow prediction or measured report.

1 · Chosen branch-flow sum

2 chosen branches × 1.5 L/min3 L/min
4 chosen branches × 1.5 L/min6 L/min
6 chosen branches × 1.5 L/min9 L/min

Chosen example: identical branch targets of 1.5 L/min sum to 3, 6 or 9 L/min for 2, 4 or 6 branches. This arithmetic does not predict actual flow sharing, pressure loss, pump duty or CDU capacity. Your hydraulic design and validation define those conditions.

2 · Define component evidence

RELEASED DRAWING + MATERIAL IDENTITY↓PORTS + CLOSURES + CLEANLINESS↓SPECIFIED LEAK / PRESSURE RECORDS

Record the tested fittings, plugs and seals, measurement method, medium, conditions and acceptance. Pressure testing and leak testing have separate purposes and agreed criteria.

3 · Assign CDU integration

SUPPLIED MANIFOLD + BLOCK + BRACKET↓PUMP + HEAT EXCHANGER + CONTROLS↓COMPLETE-UNIT + SITE APPROVAL

A part report covers its stated manufacturing boundary. The integrator and system owner define complete-unit performance, controls, sensors, commissioning and acceptance.

Review Your Surface and Cleanliness Requirements

Separate mounting datums, sealing interfaces and wetted passages. Confirm the specified final condition with the mating assembly.

Illustrative solid exterior mounting datum face on a CDU connection block concept, not documentary company or customer photography

Define the mounting footprint, locating datums and final inspection state.

A finish is not a universal cooling improvement. Confirm its purpose, compatibility and inspection state. Review surface finishing options →

Illustrative engineering concepts

Define Your Functional Features

Put the dimensions that control sealing, assembly fit and passage closures on your drawing.

Illustrative sectioned CDU manifold passages and cross-hole closures concept, not documentary company or customer photography

Illustrative CDU manifold section concept

Mounting footprint

Datum scheme, locating features and mounting hardware

Ports and seals

Thread designation, seal land and fitting engagement

Mounting datums

Hole pattern, datum scheme and tool access

Passages and closures

Cross-hole closures, deburring and cleaning access

Final condition

Flatness, masking, protected interfaces and inspection state

Resolve 6 Design Risks Before Your Order

Resolve ports, mounting, specified tests, cleanliness, traceability and component-to-system acceptance before release.

Ports and passage closures

Define the port schedule and cross-hole closure method together. Review access for machining, deburring, sealing, cleaning and final inspection; matching a thread designation alone does not approve a connection.

Your input

Controlled drawing and the relevant service conditions.

Your acceptance

Agreed method, inspection state, limits and required records.

Illustrative ports and passage closures review for CDU component parts concept, not documentary company or customer photography

Illustrative engineering concept

5 Checkpoints from Drawing to Repeat Supply

Drawing review

Confirm revision, interfaces and operating inputs.

Route review

Agree materials, joining and final machining.

Sample build

Review the finished component and assembly fit.

Agreed checks

Assess specified dimensions, joints and test records.

Production release

Release the accepted revision, packaging and repeat-order scope.

Approve Your Supplied Parts Before CDU Integration

Illustrative manifolds & cdu components dimensional inspection concept, not a customer part

Illustrative component concept

Your custom CDU components quote should connect each part number and revision to its supplied material, final geometry, cleaning state and agreed records. Request the component and assembly checks that match your order. A manifold inspection or leak report covers its stated boundary; it does not qualify the complete coolant distribution unit or its operating envelope.

  • Material identity and drawing revision
  • Mounting datum faces, mounting and interface dimensions
  • Specified joining and test evidence
  • Port protection, packaging and shipment release
Review quality requirements →

Review Your Part Where It Meets the CDU Assembly

These are component integration contexts, not complete units, installed customer projects or certified system performance.

Illustrative CDU manifold and mounting component integration fixture concept, not documentary company or customer photography

CDU fluid headers

Match the released branch and inlet port schedule.

Connection blocks

Control seal lands, mating fittings and locating datums.

Mounting supports

Review fasteners, restraint and service access.

Prototype units

Resolve controlled geometry before integration.

Loop subassemblies

Define the supplied fittings, seals and test state.

Service spares

Match installed revisions and protective packing.

Inspection fixtures

Name the measured interfaces and acceptance method.

Integration handover

Keep part records and complete-unit approval distinct.

Review rack connection interfaces →

6 Inputs for Your Manifolds & CDU Components Quote

  1. Controlled manifold, block or bracket drawings + revision
  2. Port schedule, passage closures + mating fittings
  3. Mounting datums, service envelope + supplied hardware
  4. Coolant, wetted materials + cleaning acceptance
  5. Separate leak, pressure and any hydraulic validation scope
  6. Prototype/repeat quantities + traceability and reports

Ask your quote to separate component manufacturing, joining, finishing, inspection and any independently agreed validation. The drawing review confirms availability, quantities and delivery scope.

Answers Before You Specify

Which CDU components can be quoted from customer drawings?

Provide the released drawings for each manifold, connection block, bracket, adapter or defined subassembly. State material, final geometry, supplied fittings, quantities and required records. Drawing review confirms the feasible manufacturing and delivery scope for each part.

Does a CDU component supplier supply the complete coolant distribution unit?

A component order should state exactly what is supplied. Machined manifolds, blocks, brackets and defined assemblies do not by themselves include pumps, heat exchangers, controls, complete-unit qualification or site commissioning. Assign those responsibilities separately.

What port schedule is needed for a CDU manifold quote?

List each port position and direction, thread standard and designation, sealing arrangement, selected mating fitting, plugs and tool clearance. Include passage connections and cross-hole closures on the controlled drawing.

How should CDU manifold cleanliness be accepted?

Agree relevant particles or residues, inspection method, cleaning and drying scope, accessible passage state, port protection and packaging. Define the acceptance owner and any supplied cleanliness records before sample release.

Does a CDU manifold pressure test replace a leak test?

No. Their purpose, medium, conditions and acceptance criteria can differ. Specify the pressure and leak checks separately, including whether mating fittings, plugs and seals are installed. Neither automatically establishes complete-unit performance.

What should your component sample approval include?

Agree material identity, drawing revision, final dimensions and datums, port and assembly fit, cleanliness, specified tests and traceability. Keep component release separate from hydraulic validation and complete CDU integration approval.