Editorial Technical Reference

Door Assembly

This page explains how Door Assembly is classified within Fabricated Metal Product Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A complete set of components that form a functional door unit for industrial enclosures.

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Door Assembly

Definition
A door assembly is a critical component of industrial enclosures, providing secure access to internal equipment while maintaining environmental protection, safety, and operational efficiency. It typically includes the door panel, frame, hinges, locking mechanism, seals, and any integrated viewing windows or ventilation elements. The assembly is designed to operate reliably under various industrial conditions, with materials such as galvanized steel, stainless steel, or aluminum, depending on the application requirements. Key parameters include door height (1800–2400 mm), width (600–1200 mm), and thickness (1.5–3.0 mm), which influence structural rigidity and fit. The operating temperature range is -40 to 85 °C, and ingress protection ratings range from IP54 to IP65, ensuring dust and water resistance. Hinges and door structure support a maximum static load of 100–200 kg, with a hinge cycle life of 100,000–200,000 cycles. Surface finishes are available in RAL 7032–7035 powder coating options, and material grades for carbon steel structural parts are Q235–Q345. Door weight ranges from 20–60 kg, affecting handling and hinge selection. Seal hardness is 60–70 Shore A, ensuring compression and sealing, and for pressurized enclosures, the maximum operating pressure is 1.0–1.6 MPa. These values are reference ranges and must be verified for the specific model and application with the legal manufacturer or supplier. The door assembly operates by swinging or sliding on hinges or tracks, creating a sealed barrier when closed. Locking mechanisms secure the door, and seals prevent ingress of contaminants. The assembly is designed to withstand operational stresses and maintain structural integrity over its service life.
Working Principle
The door assembly operates by swinging or sliding on hinges or tracks to open and close, creating a sealed barrier when closed. Locking mechanisms secure the door in the closed position, while seals prevent ingress of dust, moisture, and contaminants. The assembly is designed to withstand operational stresses and maintain structural integrity. Hinges allow rotational movement, and tracks guide sliding motion, depending on the configuration. The sealing system compresses when the door is closed, ensuring a tight fit. The locking mechanism engages to hold the door securely, and the overall structure is engineered to handle loads and repeated cycles.
Common Materials
Galvanized Steel, Stainless Steel, Aluminum
Technical Parameters
ParameterTypical rangeNotes & selection driver
Door Height1800–2400 mmStandard industrial enclosure heights
Door Width600–1200 mmStandard industrial enclosure widths
Door Thickness1.5–3.0 mmSteel sheet thickness for structural rigidity
Operating Temperature-40–85 °CSeal and hinge material limitsIEC 60529
Ingress Protection RatingIP54–IP65Dust and water resistanceIEC 60529
Max Static Load100–200 kgLoad capacity of hinges and door structure
Hinge Cycle Life100000–200000 cyclesNumber of open/close cyclesIEC 62262
Surface FinishRAL 7032–RAL 7035Powder coating color optionsISO 12944
Material GradeQ235–Q345Carbon steel for structural partsGB/T 700
Door Weight20–60 kgAffects handling and hinge selection
Seal Hardness60–70 Shore AEnsures compression and sealingISO 7619-1

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Door Panel
    Primary structural element that forms the closing surface
    Material: Steel or Aluminum
  • Door Frame Part
    Structural support that interfaces with the enclosure and holds the door panel
    Material: Steel or Aluminum
  • Hinges Part
    Provide rotational movement for door opening and closing
    Material: Steel with Stainless Steel Pins
  • Locking Mechanism
    Secures the door in the closed position, often with handles or latches
    Material: Zinc Alloy or Stainless Steel
  • Door Seals Part
    Create an environmental seal between door and frame to prevent ingress
    Material: EPDM Rubber or Silicone
  • Sliding Track Optional
    Guides the panel sideways on sliding-door configurations, in place of hinges.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 0.5 bar differential
other spec: Max wind load: 1500 Pa, Sealing class: IP65
temperature: -40°C to +120°C
Media Compatibility
✓ Dry air environments ✓ Light industrial dust ✓ Non-corrosive gases
Unsuitable: High-pressure washdown or corrosive chemical exposure
Sizing Data Required
  • Opening dimensions (width x height)
  • Required sealing class (IP rating)
  • Mounting surface material/thickness

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Hinge Wear and Misalignment
Cause: Repeated cyclic loading causing metal fatigue, lack of lubrication leading to increased friction, and improper installation resulting in uneven stress distribution.
Seal Degradation and Air/Water Infiltration
Cause: UV exposure and temperature cycling causing rubber/elastomer hardening and cracking, mechanical abrasion from door operation, and chemical exposure from cleaning agents.
Maintenance Indicators
  • Audible grinding or squeaking during operation indicating hinge/latch mechanism failure
  • Visible gaps in door seals or water/air infiltration around edges during weather events
Engineering Tips
  • Implement quarterly lubrication schedule for all moving parts using manufacturer-recommended lubricants and conduct annual torque check on all fasteners
  • Install UV-protective film on exterior surfaces and establish bi-annual seal inspection/replacement protocol based on compression testing

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ANSI/BHMA A156.115 - Hardware for Swinging Doors EN 14351-1:2006 - Windows and doors - Product standard, performance characteristics

Quoted from the published standard.

Manufacturing Precision
  • Door Panel Flatness: +/- 1.5mm per 1000mm length
  • Hinge Alignment Bore: +/- 0.5mm from specified position
Quality Inspection
  • Operational Force Test - Measuring opening/closing effort
  • Air Infiltration Test - Measuring air leakage at specified pressure differential

Manufacturers of Door Assembly

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

DONGGUAN MISSION GAUGE & FIXTURE CO.,LTD.
Guangdong, CN
Founded 2013
Listed on the company's own website · profile compiled by CNFX from public sources

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
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Frequently Asked Questions

What materials are available for door assemblies?

The door assembly can be made from galvanized steel, stainless steel, or aluminum, as listed in the directory. The choice depends on the application's environmental and mechanical requirements. Always confirm the material with the supplier for your specific model.

What is the ingress protection rating range?

The ingress protection rating ranges from IP54 to IP65, indicating dust and water resistance. This is a reference range; the actual rating for a specific door assembly must be verified with the manufacturer.

How many open/close cycles can the hinges withstand?

The hinge cycle life is listed as 100,000 to 200,000 cycles. This is a reference range based on standard testing. Confirm the expected cycle life for your application with the supplier.

What is the maximum static load capacity?

The maximum static load is 100 to 200 kg, which includes the load on hinges and door structure. This range is for reference; verify the exact capacity for your door assembly model.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
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