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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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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.

View Industry Applications

Applications & Project Inquiries

Precision & Advanced Systems

Start with your functional and quality requirements.

View Industry Applications

Applications & Project Inquiries

Industrial & Energy

Build around your operating environment.

View Industry Applications

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.

Explore Design Resources

Cost & Planning

Prepare your process, budget and sourcing questions.

Explore Planning Topics

Learn & Proof

Build your knowledge before production.

Explore Learning Paths
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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Get Quote
sales@lkmfg.com (945) 409-1013

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

YOUR SECTION. YOUR MATERIAL. YOUR ACCEPTANCE PLAN.

Custom Extrusion Profiles for Your Cross-Section & Finished Fit

Bring your cross-section, material route and finished interfaces into one review. Compare a custom die with standard stock before committing to tooling.

Start with 1 section drawing + your required length and quantity. Project route and supply scope are confirmed during review.

Custom aluminum and polymer sections with distinct open and hollow profiles
Illustrative custom-profile concept.
  • ✓ Material-route review
  • ✓ Solid & hollow shapes
  • ✓ Mating-feature planning
  • ✓ Agreed secondary work
  • ✓ Dallas-area support

Material & Grade

Review alloy or polymer grade

Section & Tooling

Review profile feasibility

Cut-Length Planning

Define your required length

Sample Evidence

Confirm fit and appearance

Dallas-Area Support

Coordinate your project

5 Decisions Before Your Die Is Made

Define your requirements early to review cost, fit and production scope.

01

Section Fit

Grooves, walls and mating parts.

02

Material Route

Grade, condition and use conditions.

03

Shape Control

Section, bow and twist.

04

Order Basis

Metres, feet or finished pieces.

05

Finished Scope

Cuts, holes, packing and records.

Choose the Profile Around Your Assembly

Extrusion forms a continuous cross-section; aluminum and polymer routes use different tooling and conditioning.

Custom Extruded Profiles Around Your Assembly

For solid profile extrusion and open channels, identify the section function, load direction and mating faces.

Your FitMating parts, section function and datums.
Your SectionOpenings, lips and load direction.
Your DeliveryFinished lengths and real demand.

Profile, material and process suitability are reviewed for your project.

Open & Solid Shapes — Your Part — illustrative profile review
Illustrative custom-profile concept.

6 Checkpoints from Section Review to Repeat Supply

Extruded Samples — illustrative extrusion planning concept
Illustrative custom-profile concept.

Approve the Extruded Sample, Not Just a 3D Model

Check section fit, cut length and appearance from the proposed material and process. Record corrections before release.

An extrusion profile prototype can confirm fit, but a machined or printed model does not prove extrusion process capability.

Resolve 8 Section Risks Before Tooling

Use these profile extrusion design guidelines to review the features that affect your assembly.

Balance Your Extrusion Profile Wall Thickness

Review thick junctions, thin legs and unsupported details together.

Your inputSection CAD and critical mating features.
Our reviewFlow balance, cooling and calibration access.

Review the cooled section, not only the die opening.

Wall Balance — illustrative custom extrusion section
Illustrative custom-profile concept.

Choose Material Around Your Working Conditions

These are selection routes, not an interchangeable material or capability list.

Aluminum Route — illustrative material comparison
Illustrative material-route concept.

Aluminum Route

Review alloy, delivery condition, loads and finish; see the dedicated aluminum page.

Rigid Polymer Route — illustrative material comparison
Illustrative material-route concept.

Rigid Polymer Route

Review stiffness, impact, service temperature and surface appearance.

Flexible Polymer Route — illustrative material comparison
Illustrative material-route concept.

Flexible Polymer Route

Define hardness, recovery and retention; feasibility is grade-specific.

Transparent Route — illustrative material comparison
Illustrative material-route concept.

Transparent Route

Specify optical appearance, cleaning exposure and mating fit.

Insulation & Exposure — illustrative material comparison
Illustrative material-route concept.

Insulation & Exposure

State electrical, chemical or outdoor requirements and the evidence required.

Multi-Material Review — illustrative material comparison
Illustrative material-route concept.

Multi-Material Review

Material compatibility, bond, shrinkage and the production route need review.

Confirm the actual grade, availability and project route. Material-family names alone do not establish compliance or performance.

Plan Tooling, Trial Runs and Repeat Orders

Fit Concept

Confirm geometry and mating parts.

Extruded Trial

Review section, condition and sample results.

Repeat Release

Control grade, revision and delivery units.

For your extrusion profile design, compare standard stock plus machining with a dedicated die. Ask your custom extrusion profile supplier to separate tooling, trials and finished-piece charges. A prototype fit check and a production extrusion trial answer different questions.

4 Terms to Agree

Tool Ownership & Location
Trial & Setup Scope
Maintenance & Changes
Repeat Orders & Transfer

Know Your Order Unit Before Comparing Price

ILLUSTRATION ONLY — NOT A MINIMUM ORDER OR OUTPUT CLAIM

1.5 m / piece × 800 accepted pieces

= 1,200 m

Net accepted length only. Startup, trimming, samples and rejects are separate production allowances. Compare the same grade, revision, secondary work and delivery unit.

From Your Continuous Profile to a Finished Part

Secondary operations are included only when agreed in your quotation.

01 Extrude & Condition

Extrude & Condition — illustrative custom profile
Illustrative custom-profile concept.

Use the agreed material-specific route.

02 Cut & Deburr

Cut & Deburr — illustrative custom profile
Illustrative custom-profile concept.

Cut to the agreed finished length.

03 Add Features

Add Features — illustrative custom profile
Illustrative custom-profile concept.

Drill or machine only as specified.

04 Inspect & Pack

Inspect & Pack — illustrative custom profile
Illustrative custom-profile concept.

Protect and identify accepted parts.

Features that vary along the length need a reviewed secondary operation. Local holes and slots need secondary work; constant-section tooling does not create isolated features along the length.

Agree 6 Checks for Your Receiving Team

Set extrusion profile tolerances by feature, material, delivery state and measurement method.

Agree 6 Checks for Your Receiving Team

Cross-Section & WallCritical features and datums.
Length & End CutUnits, temperature and cut condition.
Bow & TwistSupport, reference length and method.
Material & LotGrade, color and traceability.
Surface & FunctionAppearance zones and fit checks.
Approval RecordsFormat, sampling and evidence.

Agree the method and acceptance scope before production. A dimensional report does not establish material compliance, pressure integrity or long-term performance.

First-Extruded Samples — illustrative inspection concept
Illustrative inspection concept. Method reviewed for your profile.

Profiles for Your Product, Not Just a Material List

Equipment Channels — illustrative extruded profile
Illustrative custom-profile concept.

Equipment Channels

Custom extrusion profiles for industrial equipment need defined guides, covers and mounting interfaces.

Lighting Covers — illustrative extruded profile
Illustrative custom-profile concept.

Lighting Covers

Custom extrusion profiles for lighting need thermal, optical or mounting requirements by material.

Enclosure Sections — illustrative extruded profile
Illustrative custom-profile concept.

Enclosure Sections

Custom extrusion profiles for enclosures need panel fit, finish and fastening details.

Assembly Edges — illustrative extruded profile
Illustrative custom-profile concept.

Assembly Edges

Review edge protection, engagement and the finished assembly.

Illustrative application concepts. Product suitability and testing are project-specific. Application suitability and any required testing are confirmed for the selected material route.

China Manufacturing. Dallas-Area Coordination.

Coordinate your section review, sample decisions and delivery requirements.

LK Dongguan factory exterior
LK Dongguan factory. User-approved retouched photograph; route and project scope confirmed in your quotation.

Dallas Contact

Project communication and support.

Production Route

Confirmed for your project.

Quality Records

Inspection and documentation.

Delivery Plan

Coordinate timing and logistics.

6 Inputs for Your Custom Extrusion Profile Quote

  1. 01Section drawing + part CAD
  2. 02Material grade/condition + use conditions
  3. 03Finished length + order unit
  4. 04Mating features + critical limits
  5. 05Trial, batch + annual demand
  6. 06Color, secondary work + delivery needs

Separate tooling, trials, recurring length, secondary operations and packaging in the quote.

Answers Before Your First Order

What are custom extrusion profiles?

Custom extrusion profiles are continuous sections formed with tooling for your specified cross-section. Define the material route, finished length and secondary features separately; aluminum and polymer processes require different tooling and conditioning.

Custom extrusion profiles vs standard profiles: which fits your order?

Compare the fit available from standard stock with the functional value of a dedicated section. Include tooling, machining, finish, waste, assembly and actual demand. A custom die is not automatically the lower-cost route for a small order.

Can extrusion profiles have a variable cross section?

Conventional continuous extrusion maintains its basic cross-section. Isolated holes, pockets, end changes and local slots require secondary operations or another manufacturing route.

How much do custom extrusion profiles cost?

Compare tooling and trial charges separately from material, accepted length, cutting, machining, finishing, inspection and packing. Use the same revision and delivery unit across supplier quotes.

What affects extrusion profile tolerances?

Material, section envelope, wall distribution, hollow geometry, straightness, twist, length and delivery condition all matter. Agree critical datums and measurement methods; no single tolerance applies to every feature.

Who owns custom extrusion tooling?

Record ownership, location, maintenance, permitted changes, expected service basis and transfer terms in the quotation or tooling agreement. Payment alone should not replace written terms.

What are the minimum order and lead-time requirements?

Extrusion profile minimum order quantity depends on material supply, setup, tooling and the economic run. Ask how long custom profile extrusion takes at separate tooling, trial, approval, production and delivery milestones for your drawing.

What files are needed for custom extrusion profiles?

Send a controlled section drawing and CAD, material grade and condition, finished length, critical fits, visible surfaces, secondary work, trial/first-order/annual demand and delivery requirements. These inputs make your custom extrusion profile quote comparable.

3 Approvals Before Your Production Release

Your Drawing

Section, length and acceptance limits.

Your Sample

Material, appearance and fit evidence.

Your Scope

Tooling, exclusions and delivery terms.