Editorial Technical Reference

Gate Assembly

This page explains how Gate 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 structural and functional assembly that forms the access point within a safety cage, designed to allow controlled entry/exit while maintaining protective integrity.

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

Product Specifications

Technical details and manufacturing context for Gate Assembly

Definition
The Gate Assembly is a critical component of a Safety Cage system, serving as the primary access mechanism. It consists of a framed opening with a movable door or panel that can be securely latched and interlocked. This assembly ensures that when the gate is open, machinery within the cage is prevented from operating (via safety interlocks), and when closed, it provides a physical barrier equivalent to the surrounding cage structure, protecting personnel from hazards such as moving parts, flying debris, or high-energy processes. The assembly is typically fabricated from galvanized steel, stainless steel, or aluminum, depending on the environmental and strength requirements. It is designed to integrate with safety interlock switches, such as limit switches or solenoid locks, which are critical for ensuring safe operation. The gate can be operated manually or automatically, with actuation torque requirements ranging from 50 to 300 N·m. The assembly is available in nominal sizes from DN50 to DN300, with operating pressures from 1.0 to 1.6 MPa and temperatures from -20°C to 80°C. Leakage rates are kept at or below 0.1 mL/min, and the seat material hardness ranges from 80 to 95 Shore A. The body material is typically CF8M stainless steel, and face-to-face dimensions range from 150 to 500 mm. The weight of the assembly varies from 15 to 120 kg, and the cycle life is between 10,000 and 50,000 cycles. These parameters are reference ranges and must be verified for the specific model and application. Always confirm model-specific values and standards with the legal manufacturer or supplier.
Working Principle
The assembly operates as a physical barrier and a safety control device. Its frame is fixed to the main cage structure. The gate door swings, slides, or lifts to open. A latching mechanism secures it when closed. Crucially, it integrates with one or more safety interlock switches (e.g., limit switches, solenoid locks). When the gate is opened, the interlock breaks the control circuit, triggering an immediate machine stop or preventing startup. The gate cannot be opened unless the machine is in a safe state, and the machine cannot operate unless the gate is verified as closed and locked.
Common Materials
Galvanized Steel, Stainless Steel, Aluminum
Technical Parameters
ParameterTypical rangeNotes & selection driver
Nominal SizeDN50–DN300 mmMatches pipe size for flow capacity.ISO 6708
Operating Temperature-20–80 °CSeal material degrades above 80°C.
Leakage Rate≤0.1 mL/minClass A shut-off for gas applications.
Seat Material Hardness80–95 Shore ASofter seat improves sealing but reduces wear life.ISO 7619-1
Body MaterialCF8MCorrosion-resistant stainless steel.ASTM A351
Face-to-Face Dimension150–500 mmMust match piping layout.ISO 5752
Weight15–120 kgAffects handling and support requirements.
Actuation Torque50–300 N·mRequired for manual or automated operation.
Cycle Life10000–50000 cyclesHigher cycles require wear-resistant trim.

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
  • Gate Frame Part
    Provides the rigid structural perimeter that mounts to the cage and supports the door and hardware.
    Material: steel
  • Gate Door/Panel Part
    The movable barrier element that fills the frame opening.
    Material: steel
  • Latching Mechanism
    Secures the door in the closed position.
    Material: steel
  • Safety Interlock Switch
    Detects the position of the gate (open/closed) and sends a signal to the machine safety controller.
    Material: plastic/metal
  • Hinges or Slides Part
    Enable the swinging or sliding motion of the door.
    Material: steel

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Gate Assembly.

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 1.5 bar
other spec: Max particle size: 5mm, Max flow velocity: 2 m/s
temperature: -40°C to 120°C
Media Compatibility
✓ Dry bulk solids ✓ Industrial process air ✓ Non-corrosive liquids
Unsuitable: Highly corrosive chemical environments
Sizing Data Required
  • Opening dimensions (WxH)
  • Required safety integrity level (SIL)
  • Installation orientation (vertical/horizontal)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Seal leakage
Cause: Wear or degradation of gate seals due to abrasive particles in the fluid, improper installation, or material incompatibility with the process media
Gate binding/sticking
Cause: Corrosion buildup on gate surfaces, misalignment from foundation settlement, or thermal expansion causing excessive friction in the guides
Maintenance Indicators
  • Visible fluid leakage around the gate stem or body seals during operation
  • Unusual grinding or scraping noises during gate operation indicating metal-on-metal contact
Engineering Tips
  • Implement regular seal condition monitoring and replacement based on operating cycles rather than time intervals
  • Establish proper alignment verification procedures during installation and after any foundation movement events

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 A156.13 - Materials and Finishes DIN 18040-1 - Accessibility Requirements

Quoted from the published standard.

Manufacturing Precision
  • Gate Alignment: +/- 2mm
  • Hinge Pin Clearance: +/- 0.5mm
Quality Inspection
  • Dimensional Verification Test
  • Load and Cycle Testing

Manufacturers of Gate Assembly

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

Aier Ventilation
Shanghai, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Yizhong Aluminium
Guangdong, CN
Listed on the company's own website · profile compiled by CNFX from public sources
ZENGO Airandus
Ningbo, Zhejiang, CN
Also makes: Ventilation Fan, Centrifugal Fan, Flexible Duct and 8 more
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
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

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Frequently Asked Questions

What materials are available for the Gate Assembly?

The Gate 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 strength requirements. Verify the specific material for your model with the supplier.

How does the safety interlock work?

The gate integrates with safety interlock switches, such as limit switches or solenoid locks. When the gate is opened, the interlock breaks the control circuit, stopping the machine or preventing startup. The machine cannot operate unless the gate is closed and locked.

What are the typical operating pressure and temperature ranges?

The directory lists operating pressure from 1.0 to 1.6 MPa and temperature from -20°C to 80°C. These are reference ranges; always confirm the exact values for your specific model and application with the manufacturer.

What is the cycle life of the Gate Assembly?

The cycle life is listed as 10,000 to 50,000 cycles. Higher cycle counts may require wear-resistant trim. Verify the expected cycle life for your application with the supplier.

Data Basis

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

Preliminary Technical Classification
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