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At REKO, quality is not an after-thought—it's built into every step of our production. From material verification to machining control, from surface treatment monitoring to final shipment checks, each process follows a strict and traceable standard.

Quality Control Standards

quality_control_standards_material_inspection Quality Control Standards
  1. Check quantity and weight according to the supplier's delivery note.
  2. Verify material certification and ensure all documents match the order.
  3. Inspect material dimensions based on the purchase specifications.
  4. If required, send materials for third-party testing and issue a test report.
first_piece_inspection_measurement First Piece Inspection
  1. The first piece of each project is sent to QC for approval before mass production.
  2. After passing, mass production begins and inspection data is recorded in the Quality Inspection Report.
  3. If the first piece fails, the part is corrected and re-inspected until qualified.
process_inspection_equipment_operation Process Inspection
  1. QC inspects parts produced by the machine throughout the process.
  2. Machines are checked every 2 hours, with results recorded in the inspection report.
  3. If an issue is found, QC notifies production for immediate correction.
  4. Operators also perform self-inspection, with frequency adjusted based on material type.

Material Inspection & Verification

At REKO, every project starts with strict material control.
We only source raw materials from reputable and certified suppliers, and each batch comes with traceable documentation.

material_inspection_raw_alloy_bars

Our Material Control Process

  • Verify alloy grade and specifications upon arrival.
  • Hardness and chemical composition spot-check (when needed).
  • Inspect surface condition, flatness, and dimensional accuracy.
  • Label and record each batch for traceability.
  • Provide alternative material recommendations when the required alloy is unavailable —never substitute materials without customer approval.

    • Common Industry Problems

    Many customers tell us they have experienced this with other suppliers:

    industry_problem_low_grade_alloy_replacement
    Materials are quietly replaced with similar but lower-grade alloys
    industry_problem_mixed_batch_materials
    Materials are quietly replaced with similar but lower-grade alloys
    industry_problem_non_certified_material_issues
    Non-certified or recycled material leads to poor anodizing results, cracking, or failure in assembly

    How REKO Solves This

  • No material enters production without inspection
  • Every batch has a unique traceable ID

    • Machining Quality Control

    Before machining begins, our engineers perform a rigorous review of customer drawings.

    drawing_program_verification_tools

    Drawing & Program Verification

  • Compare 2D drawings with the 3D model point-by-point
  • Confirm GD&T, thread specifications, chamfers, radii, and allowances
  • Report any inconsistency immediately
  • All CNC programs go through secondary verification and simulation
    • tooling_equipment_control_machine

    Tooling & Equipment Control

  • Custom fixtures are replaced every 50 uses to prevent tolerance drift
  • Cutting tools follow strict lifespan management
  • Parameter locking prevents unauthorized changes
  • Unique program version numbers ensure batch-to-batch consistency
    • cnc_machining_process_operation

    Common Machining Problems in the Industry

  • Thin-wall vibration causing deformation
  • Tool wear leading to gradual size deviation
  • Missing features (small steps, pockets, fillets)
  • Mirror-side machining errors
  • Incorrect chamfers or thread depths

    • How REKO Prevents These Issues

  • Use damping methods for thin-walled parts (supporting wax, back taping, speed optimization)
  • Two-person program review system
  • Directional markers to avoid wrong-side machining
  • Mandatory Go/No-Go gauge inspection for threads

    • In-Process & Final Inspection

    Our inspection workflow ensures dimensional stability throughout the entire production process.

    Inspection Steps

  • First Article Inspection (×3) before full production
  • In-Process Inspection (IPQC) on critical dimensions
  • Random Sampling Inspection during production
  • Full Inspection or Sampling based on customer requirements
  • Provide complete Inspection Reports including measurement charts and gauge IDs
    • inspection_steps_recording

    In-process inspection-- For CNC Turning Parts

    Different material with different interval times for inspection

    Material Inspection time of important size Full inspection time Remark
    Intervals Time Test items Intervals Time Test items
    Aluminum 30 mins 1. Thread(Ring gauge and Thread gauge)
    2. Inner hole(go-no go fixed gauges)
    3. Key sizes    		 60 mins All sizes on the drawing Adjust appropriately according to part size, tolerance, and appearance requirements.
    Brass 30 mins 1. Thread(Ring gauge and Thread gauge)
    2. Inner hole(go-no go fixed gauges)
    3. Key sizes    		 60 mins All sizes on the drawing Adjust appropriately according to part size, tolerance, and appearance requirements.
    Stainless Steel 15 mins 1. Thread(Ring gauge and Thread gauge)
    2. Inner hole(go-no go fixed gauges)
    3. Key sizes    		 45 mins All sizes on the drawing Adjust appropriately according to part size, tolerance, and appearance requirements.
    Low carbon steel,iron 20 mins 1. Thread(Ring gauge and Thread gauge)
    2. Inner hole(go-no go fixed gauges)
    3. Key sizes    		 45 mins All sizes on the drawing Adjust appropriately according to part size, tolerance, and appearance requirements.
    Note:
    1. "Key size" refers to important size indicated on the drawing, size within ±0.05 of the tolerance requirement or important inspection size indicated by hand;
    2. please strictly refer to this timetable for inspection. If with any special requirements, please follow the requirements of the supervisor!
    qc_defect_inspection_operation

    Typical Defects Caused by Poor QC

  • Wrong or reversed thread direction
  • Over-deburring leading to undersized dimensions
  • Incorrect radii
  • Unfinished pockets or misaligned steps
  • Dimension drift in long-run machining

    • How REKO Eliminates These Risks

  • Dual-operator confirmation on critical steps
  • Standardized deburring procedures
  • Final piece inspection to verify batch consistency
  • Digital record of all QC results for traceability

    • Surface Treatment Quality Assurance

    Surface finish plays a major role in final product quality.
    Before any part goes to surface treatment, it must pass a 100% pre-finish inspection.

    surface_treatment_pre_control_inspection

    Pre-Treatment Control

    Remove burrs, tool marks, and sharp edges

    Ensure consistent surface roughness (Ra control)

    Group parts by material batch to prevent color variation

    Confirm dimensional allowance for finishing thickness

  • Normal anodizing: +5–10 µm
  • Hard anodizing: +30–50 µm

    • Anodizing treatment order form

    All Parts must be fully checked before anodizing,It is to improve surface treatment quality rate.

    Item NO. Picture Material Color Before anodizing Order Qty. Anodizing Qty.
    1 Front_12x100 (PO1556-1) anodizing_form_front_part AL7075 Black Full inspected 25
    2 90200XX PO1559-1 anodizing_form_90200xx_part AL6082 Anodized natural layer thickness 15um±5um Full inspected 11
    3 EX2-T20 (PO1508) anodizing_form_ex2t20_part AL6061 Chemical grinding + anode black Full inspected 1000
    4 61315-BVF-T00 PO1545 anodizing_form_61315_part AL6061 Black Full inspected 439
    5 Leg Part PO1544-2 anodizing_form_leg_part AL6061 Sandblasted 120#+ oxidized black pantone number: Black 6C Full inspected 500
    Remark:
    1. 1. Inspect the color as the customer's sample.
    2. The exterior parts should not be damaged or lost, and the inner holes should not be allowed or accepted. The oil must be removed from the holes.
    3. Please produce in strict accordance with the quantity assigned by our company.
    Consigner/Date: Approval: Consignee/Date:

    Oxidized linker points confirmed multiple times

    We will prepare a diagram of the mounting points and inform the surface treatment supplier of the exact positions of the anodized connection points. This will prevent them from mounting the components in the wrong positions, which could cause scratches on the product.

    1. 1. If your darwing shows the anodizing conecting points,we will do it as your drawing mentioned.
    2. If your drawing did not show the conecting points, Normall we conect it in the hole
    3. If there are hanging points on the thread, sometimes the thread will appear white spot after anodizing, which is unavoidable.
    4. If some product has no hole or no hanger points,It would have some white spot after anodizing.
    oxidized_linker_points_diagram oxidized_parts_hanging_setup oxidized_components_racked
    high_tolerance_hole_anodizing_part

    High-Tolerance Hole Protection & First-Piece Anodizing

    If the parts is with hole, and the hole with very high tolerance request. Will do the first piece anodizing for first checking, Then go aheard for the full order anodizing after first piece approved.

    on_site_surface_treatment_qc

    On-Site QC at Surface Treatment Factory

    REKO has QC colleague worked in surface treatment factory,To control the quality and ensure the delivery time. REKO's QC will check the dimention in time after surface treatment done at the surface factory.

    color_consistency_control_parts

    Color Consistency Control

    Color difference control, Check the color according to Color sample or Pantone code.

    improved_version_eliminated_zone

    Improved Version

    If the color rejected, will remake the color for the parts or do obsolescence.

    Final Inspection & Shipping Standards

    Before packaging, every order must pass our strict outbound inspection.

    final_inspection_part_check shipping_packaging_foam_insert

    Outbound Quality Checklist

  • Verify quantity, material batch, and surface color D
  • ouble-check part numbers and customer labels
  • Re-open sealed boxes for secondary sampling inspection
    (Very few factories perform this step)
  • Confirm weight (each box ≤ 15 kg for easy handling)
  • All packaging uses foam inserts, bubble bags, or custom trays to prevent scratches

    • Common Shipping Mistakes in the Industry

    Mixed batches in one shipment

    Wrong or missing labels

    Scratches from poor protection

    Incorrect color or finish

    How REKO Ensures Safe Delivery

    "Three-Step Verification" before dispatch

    Clear labeling with part number, batch, and quantity

    Visual documentation of each shipment

    Customized packaging for high-value components

    Additional Quality Assurance Measures

    Before packaging, every order must pass our strict outbound inspection.

    project_kickoff_meeting_docs
    Project Kick-Off Meeting

    Every project begins with a cross-department meeting to review drawings, tolerances, materials, and timelines.

    process_traveler_system_cards
    Process Traveler System

    Each batch moves with a unique traveler card for full traceability.

    ncr_8d_corrective_report_meeting
    NCR & 8D Corrective Reports

    If an issue occurs, REKO provides professional root-cause analysis and preventive actions.

    qualified_supplier_management_facility
    Qualified Supplier Management

    Material, finishing, and heat-treatment partners are scored monthly based on stability, consistency, and delivery performance.

    What Our Customers Say

    Every feedback motivates us to do better.

    Manner + Speedy
    Dear Nicole
    star_icon

    We talked in company about your positive reaction about the Qc situation this week. It impressed us that you understand our worries and take action fastly to improve and your wilto bring all to a good success. This is exactly the correct and needed behaviour for a good longterm cooperation- and we are happy to see this on our stll early stage of cooperation.

    Manner + Speedy
    Dear Nicole
    star_icon

    We talked in company about your positive reaction about the Qc situation this week. It impressed us that you understand our worries and take action fastly to improve and your wilto bring all to a good success. This is exactly the correct and needed behaviour for a good longterm cooperation- and we are happy to see this on our stll early stage of cooperation.

    Manner + Speedy
    Dear Nicole
    star_icon

    We talked in company about your positive reaction about the Qc situation this week. It impressed us that you understand our worries and take action fastly to improve and your wilto bring all to a good success. This is exactly the correct and needed behaviour for a good longterm cooperation- and we are happy to see this on our stll early stage of cooperation.

    Manner + Speedy
    Dear Nicole
    star_icon

    We talked in company about your positive reaction about the Qc situation this week. It impressed us that you understand our worries and take action fastly to improve and your wilto bring all to a good success. This is exactly the correct and needed behaviour for a good longterm cooperation- and we are happy to see this on our stll early stage of cooperation.

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