About JUNCHU
Aluminum components, coordinated processes and a clear project contact.
JUNCHU focuses on custom aluminum components and the metal or plastic parts that complete a mechanical assembly. Based in Linqu, Weifang, Shandong, we coordinate profiles, machined parts, fabricated components, surface finishing and assembly around customer drawings.
Our role is to connect the manufacturing stages with the finished-part requirement. An enclosure may start as a profile, receive machined openings and threads, then be finished and fitted with covers and hardware. Reviewing these steps together connects the alloy and starting form to tool access, finished dimensions, appearance and assembly fit.
Projects can involve selected production partners and secondary operations. The quotation defines the proposed route, operations, responsibilities, inspection requirements and delivery scope. Raise supplier qualification, facility or documentation requirements during the enquiry so the proposed arrangement can be reviewed before approval.
From enquiry to an approved baseline. Identify the part revision, material condition, quantities and requirements that are still open. Agree any proposed substitution or design change before it affects tooling or production. Sample approval should refer to the accepted configuration and checks, giving later orders a defined starting point.
Explore manufacturing capabilities, application examples and the RFQ preparation checklist for the information that supports a clear project scope.
Aluminum-Focused Manufacturing
Profiles, housings, brackets and related components form the center of our aluminum-focused work. Supporting steel, stainless, copper-alloy and polymer parts can be reviewed with the complete drawing package. The selected route depends on geometry, quantity, material condition, finish and the interfaces needed by the assembly.
Drawing-Based Project Coordination
A project contact follows drawing questions, component revisions and material or finish decisions through the agreed manufacturing stages. Open points, proposed changes and sample approvals should be recorded against the affected part numbers. This gives buyers, engineers and selected production partners a shared reference for the work being released.
The Information Behind a Clear Project
Drawing Control
CAD
drawings & revisions
Assembly Definition
BOM
parts & hardware
Inspection Planning
QC
checks & acceptance
Project Inputs
RFQ
scope & quantities
Representative Parts & Process Routes
Representative Components
Across Connected Processes
From Profile Section to Finished Part
3D CONCEPT ILLUSTRATION · ALUMINUM PROFILES
Extruded Aluminum Profiles
CNC-Machined Housings
Finished Aluminum Housings
Telescopic Tube Assemblies
Extruded Aluminum Profiles
CNC-Machined Housings
Finished Aluminum Housings
Telescopic Tube Assemblies
Quality & Delivery Planning
How Requirements Become Inspection Checks
Drawing & Revision
QUALITY PLANNING
Identify the approved revision, functional datums, critical dimensions and finished condition before work is released. Resolve differences between the 3D model and drawing.
APPROVED TECHNICAL BASELINE
Record changes and obtain approval before they affect production.
Material Verification
QUALITY PLANNING
Define the grade, temper or resin formulation and any required material records. Specify the identification and traceability information needed for the order.
MATERIAL & CONDITION
Review proposed substitutions against function, processing and finish before approval.
First Article & Sample
QUALITY PLANNING
Use a first article or sample where required to check the critical interfaces, assembly fit and appearance before the production batch is released.
SAMPLE APPROVAL
Agree the checks and approval criteria in advance; sample acceptance does not replace a controlled drawing.
In-Process Checks
QUALITY PLANNING
Plan checks around features affected by machining, forming, joining or heat treatment. Inspection method and access should suit the geometry being measured.
PROCESS CHECKPOINTS
Identify the dimensions that need attention before the next operation makes them harder to measure.
Final Inspection
QUALITY PLANNING
Check finished-part dimensions, masked fits, visual surfaces and the agreed assembly interfaces. Define cosmetic viewing conditions and reference samples where needed.
FINISHED-PART ACCEPTANCE
Separate dimensional acceptance from color, texture and other visual requirements.
Packing & Records
QUALITY PLANNING
Confirm identification, protective packing and the inspection or material records specified in the order. Record any open issue and its agreed disposition before release.
RELEASE & DELIVERY RECORDS
Protect functional and cosmetic surfaces and confirm which documents accompany the shipment.
Ready To Start Your Project?
Start With Your Drawings - or Tell Us What You Need
Share drawings, photos or sketches with your quantity, material, finish and target date. We review the available information, clarify technical requirements and confirm quotation timing. Complex or multi-process projects may require additional review.
Discuss confidentiality and NDA requirements before sharing sensitive project files.