NingboLiqin Industry&Trade Co., LtdWhatsAPP:+86 18757148656zhouli@chinaliqin.com
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Dental Chair Armrest

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LabelValue
材料customized
Drawing format2D(PDF/CAD/DWG)、3D(STEP/IGES/GLB)
Specification
Processing Precision0.01mm
Production Capacity500000/year
Process Usage
Surface FinishCustomized Finishing

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Description
Additional Information

Product Description

thing describe
Design/Size According to customer's drawings or samples
Material Aluminum: 6061, 6063, 6082, 7075, 5052, A380, etc.
Stainless steel: SS201, SS301, SS303, SS304, (SS304 food grade), SS316, SS316L, SUS430, SS416
Steel: low carbon steel, carbon steel, 4140, 4340, Q235, Q345B, 20#, 45#, etc.
Alloy steel (15Cr, 20Cr, 42CrMo), etc.
Brass: HPb63, HPb62, HPb61, HPb59, H59, H68, H80, H90, etc.
Copper, bronze, copper, etc.
Titanium: TC4 (TiAl6v4, Grade f5)
Plastic: ABS, PC, PE, POM, Delrin, Nylon, Plastic, PP, PEI, Peek, etc.
process CNC machining, turning, milling, stamping, turning, cutting, etc.
Delivery time Samples usually take 3-7 working days, and mass production will be carried out according to the detailed quantity after sample approval.
Surface treatment Transparent anodizing, color anodizing, chemical coating, brushing, passivation, polishing, chrome plating, sandblasting, laser engraving, zinc plating, black oxide, nickel plating, chrome plating, carburizing, heat treatment, painting
Test equipment Coordinate measuring machine (CMM), 2D measuring instrument, projector, altimeter, micrometer, thread gauge, hardness tester, caliper, pin gauge, salt spray tester, concentricity measuring instrument, spectrometer.
Quality Management System ISO 9001:2015
IATF 16949:2016
ISO 13485:2016
application Auto parts, machinery parts, computer parts, medical parts, home appliance parts, electrical parts, electronic product parts, electronic parts, generator parts, alternator parts, generator parts, stationery, power switches, micro switches, construction, merchandise and A/V equipment.
File Format Solidworks, Pro/Engineer, CAD, PDF, JPG, DXF, IGS
Package Inner plastic bag, outer standard carton, or as per customer's requirements
Shipping Sea freight, air freight, international express (DHL, FedEx, TNT, UPS).
Serve The professional foreign trade team provides enthusiastic and fast response services.
Dimensional inspection report/Raw material certificate/Surface treatment report/Engineering drawing
RoHS report/Salt spray test report/Hardness test report

1. Product Overview

This product is a premium, high-integrity Armrest Assembly specifically engineered for medical dental treatment units and clinical examination chairs. Featuring a modern, streamlined ergonomic contour with a natural sloping profile, it ensures optimal arm support and patient comfort during procedures while maintaining unobstructed clinical accessibility for healthcare professionals.

2. Premium Materials & Advantages

  • Medical-Grade High-Strength Cast Aluminum: Manufactured from high-grade, heat-treated cast aluminum alloy that perfectly balances superior mechanical rigidity with lightweight efficiency.

  • Exceptional Load-Bearing Capacity: Delivers outstanding fatigue endurance and resistance against heavy vertical and lateral forces, maintaining structural integrity even under repeated patient weight loads when getting in and out of the chair.

  • Safe, Non-Toxic & Biocompatible: Structurally dense with zero internal defects, free of hazardous emissions, fully meeting stringent hospital hygiene and medical safety standards.

3. Precision Manufacturing Process & Workmanship

The component is produced under strict medical-grade manufacturing controls:

Precision Casting→Thermal Aging→CNC Precision Machining→Deburring→DA Sanding→Thread Masking→Medical Powder Coating→Curing & QC
  1. Precision Mold Casting: Cast using advanced precision tooling to form an internally reinforced, hollow-shell geometry with uniform wall thickness.

  2. Thermal Aging Treatment: Undergoes solution heat-treatment and artificial aging to relieve internal stresses, substantially boosting tensile hardness and fatigue resistance.

  3. CNC Multi-Axis Machining: CNC machines mill the pivoting hinge bore, mounting interfaces, and threaded holes to guarantee smooth articulated motion and zero-play mechanical fit.

  4. Surface Preparation & Deburring: All edges and parting lines are thoroughly deburred and radiused. Visible exterior surfaces undergo DA (Dual-Action) orbital sanding to create a flawless, ultra-smooth profile for maximum coating adhesion.

  5. Masking & Medical Coating:

    • All functional threaded holes are securely masked prior to paint application to prevent clogging.

    • High-grade, medical-grade electrostatic powder coating / polyurethane paint is applied, delivering 100% full, uniform coverage across all exposed areas.

  6. Bake Curing & Quality Assurance: Thermally cured in ovens to cross-link a tough protective film, followed by 100% inspection for surface finish, coating adhesion, and dimensional integrity.

4. Quality Features & Performance

  • Hospital-Grade Disinfection Resistance: The non-porous finish withstands frequent wipe-downs with medical alcohol (75%), chlorine-based solutions, and quaternary ammonium wipes without blistering, peeling, or yellowing over time.

  • Warm, Tactile Surface Texture: Features a refined, glare-free matte finish that feels pleasant and non-chilling to the touch, entirely free of paint runs, sags, pinholes, or airborne dust inclusions.

  • Seamless Interchangeability: Strict manufacturing consistency ensures effortless modular assembly and hassle-free field maintenance for medical equipment OEMs.

5. Target Applications

  • Primary Application: Dental Treatment Chair Units (articulated or fixed armrest component).

  • Secondary Healthcare Equipment:

    • ENT (Ear, Nose & Throat) Examination Chairs

    • Ophthalmic Surgical & Diagnostic Recliners

    • Dialysis & Infusion Therapy Chairs

    • Physical Therapy and Clinical Procedure Beds

Our Core Advantages

  • Specialized process solutions for medical mechanical parts, fully familiar with strict medical standards on cleanliness, corrosion resistance and burr-free surfaces. Support compliant custom processing for medical device manufacturers.
  • Full in-house clean manufacturing including milling, tapping, cleaning and powder coating without outsourcing, shortening lead time for prototypes & mass orders.
  • Complete precision testing equipment including CMM, thread gauges, film thickness meters & salt spray testers. Full sets of dimensional, salt spray and cleanliness reports can be supplied.
  • One-stop customization: drawing optimization, material replacement, clean process adjustment & fast prototype sampling, matching small-batch & repeated orders of medium & small medical equipment factories.

We specialize in non-standard precision structural components for medical devices. With strict clean production control and mature manufacturing systems, we supply durable bottom load-bearing base components for automatic medical testing and pharmaceutical production lines.

TEL: +86 187 5714 8656
Email: zhouli@chinaliqin.com
WhatsApp:+86 187 5714 8656
Website:https://www.cncliq.com/

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longshengmfg-logoNingbo Liqin Industry&Trade Co., Ltd.
  • Rapid engineering feedback within just 2 business days.

  • ISO 9001 and IATF 16949 Certification.

  • Materials including aluminum, stainless steel, steel, and brass available, with surface finish options such as electrophoresis, anodic oxidation, electroplating, and powder coating.

  • Cost-effective mass production with advanced equipment.

  • Custom orders accepted, starting from prototypes.