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Chief CMA640 Silver Mounting Ring - 1. 9" ID Decorative Ring for CMS/CPA Columns - Extendable Design

SKU: CMA640
UPC: 841872002798
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MSRP: $30.07
$30.07
$20.99
Save: $9.08 (30.20%)
Warranty Information: 10 Year
Condition: New
Width: 9.14 (cm)
Height: 0.51 (cm)
Depth: 9.14 (cm)

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Product Features

Description

Product Overview

The Chief CMA-640 is a silver decorative mounting ring designed for professional ceiling or wall fixture installations. This component serves as an aesthetic and functional finishing element for CMS/CPA fixed or inner adjustable columns, providing a clean, polished appearance while ensuring secure mounting.

With its 1.9-inch inner diameter, this ring accommodates standard column sizes, making it suitable for various commercial and institutional environments. The extendable design allows for flexibility during installation, helping technicians achieve precise alignment and a seamless final look. Manufactured by Chief under the Legrand Group, this mounting ring meets the durability and reliability standards expected in professional AV and mounting applications.

Color
Silver
Product Identification
Part NumberCMA-640
Physical Specifications
ColorSilver
Inner Diameter1.9 inches
Dimensions3.60" W × 3.60" D × 0.20" H (91.44 × 91.44 × 5.08 mm)
Warranty & Origin
Warranty10 Year Limited
Country of OriginChina

Technical Overview

The CMA-640 mounting ring is engineered with precise dimensions and a robust construction to support stable fixture mounting. Its 3.60-inch width and depth, combined with a minimal 0.20-inch height, create a low-profile footprint that integrates discreetly into ceiling or wall setups. The silver chrome finish not only enhances visual appeal but also offers resistance to wear in high-traffic areas.

Compatibility with Chief's CMS and CPA column systems ensures this ring works seamlessly within existing mounting infrastructures, reducing installation complexity. The extendable feature provides adjustability, allowing installers to fine-tune positioning without compromising structural integrity. This technical design prioritizes both aesthetic consistency and mechanical reliability in professional installations.

Inner Diameter1.9 inches
Height0.20 inches (5.08 mm)
Warranty Period10 Years
Silver FinishExtendable DesignLow Profile

Key Product Advantages

The Chief CMA-640 mounting ring delivers several practical benefits for installers and end-users. Its extendable design simplifies alignment during installation, reducing time and effort while ensuring a precise fit. The silver chrome finish provides a durable, corrosion-resistant surface that maintains its appearance over time, even in demanding environments.

Aesthetic Integration

The decorative ring enhances visual continuity by concealing mounting hardware and creating a polished, professional finish that blends with modern interiors.

  • Conceals mounting points
  • Adds decorative detail
  • Matches silver fixtures

Installation Flexibility

Extendable construction allows for minor adjustments during setup, accommodating slight variations in column positioning without requiring additional components.

  • Reduces installation time
  • Minimizes alignment issues
  • Works with CMS/CPA columns

Deployment / Use Cases

This mounting ring is ideal for commercial, educational, and corporate settings where ceiling or wall-mounted displays, speakers, or lighting fixtures require a clean, finished appearance. It is commonly used in conference rooms, lobbies, classrooms, and retail spaces to secure AV equipment while maintaining aesthetic standards.

The CMA-640 is particularly suited for installations using Chief's CMS (Ceiling Mount System) or CPA (Ceiling Projector Adjustable) columns, where it acts as a decorative cover for the mounting interface. Its low-profile design makes it suitable for environments with limited clearance, and the silver finish coordinates with modern architectural elements. Installers appreciate the extendable feature for handling minor measurement discrepancies during retrofit or new construction projects.

Physical Profile

The CMA-640 features a compact, circular design with a 3.60-inch outer diameter and a 1.9-inch inner diameter, optimized for enclosing standard mounting columns. Its 0.20-inch height ensures a minimal protrusion from the ceiling or wall, maintaining a sleek appearance. The silver chrome finish offers a reflective, modern look that resists fingerprints and minor scratches, suitable for visible locations. The ring's lightweight yet sturdy construction supports secure mounting without adding significant weight to the overall fixture assembly.

Color
Silver
Dimensions
Width
3.60" (91.44 mm)
Depth
3.60" (91.44 mm)
Height
0.20" (5.08 mm)
[custom-highlights]

Highlights

  • Silver chrome finish for a modern, durable appearance
  • 1.9-inch inner diameter compatible with CMS/CPA columns
  • Extendable design allows for installation flexibility
  • Dimensions: 3.60" W × 3.60" D × 0.20" H (91.44 × 91.44 × 5.08 mm)
  • Low-profile height minimizes visual intrusion
  • 10-year limited warranty for long-term reliability
  • Manufactured by Chief under the Legrand Group
  • Suitable for ceiling or wall fixture mounting
[/custom-highlights][custom-specifications]

Specifications

Specifications
ManufacturerLegrand Group
Manufacturer Part NumberCMA-640
Brand NameChief
Product SeriesCMA
Product ModelCMA-640
Product Name1.9 Inch ID Decorative Ring - CMS/CPA Fixed/Inner Adjustable Column - Silver
Product TypeMounting Ring
Product Information
FeaturesExtendable
Physical Characteristics
Color FamilySilver
Product ColorSilver
Height0.20" (5.08 mm)
Width3.60" (91.44 mm)
Depth3.60" (91.44 mm)
Miscellaneous
Country of OriginChina
Warranty
Limited Warranty10 Year
[/custom-specifications][custom-faq]

FAQ

What is the inner diameter of the Chief CMA-640 mounting ring?

The Chief CMA-640 mounting ring has an inner diameter of 1.9 inches. This size is designed to fit standard CMS and CPA fixed or inner adjustable columns from Chief, providing a secure and aesthetic cover for mounting points in ceiling or wall installations.

What color is the CMA-640 mounting ring?

The CMA-640 mounting ring features a silver chrome finish. This color family is listed as silver, offering a reflective, modern appearance that blends well with contemporary interiors and resists corrosion in various environments.

Is the CMA-640 mounting ring extendable?

Yes, the CMA-640 mounting ring includes an extendable design. This feature allows for minor adjustments during installation, helping installers achieve precise alignment with mounting columns without requiring additional tools or components, which simplifies setup in retrofit or new construction scenarios.

What are the dimensions of the CMA-640 mounting ring?

The CMA-640 mounting ring measures 3.60 inches in width, 3.60 inches in depth, and 0.20 inches in height (equivalent to 91.44 mm × 91.44 mm × 5.08 mm). These compact dimensions create a low-profile footprint that minimizes visual intrusion while providing adequate coverage for mounting hardware.

What warranty does the Chief CMA-640 mounting ring come with?

The Chief CMA-640 mounting ring comes with a 10-year limited warranty. This warranty covers defects in materials and workmanship, providing long-term reliability and peace of mind for commercial and institutional installations where durability is essential.

What is the CMA-640 mounting ring compatible with?

The CMA-640 mounting ring is compatible with Chief's CMS (Ceiling Mount System) and CPA (Ceiling Projector Adjustable) fixed or inner adjustable columns. It is designed as a decorative ring for these systems, ensuring a seamless fit and professional finish in AV mounting applications.

[/custom-faq]
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Chief CMA640 Silver Mounting Ring - 1. 9" ID Decorative Ring for CMS/CPA Columns - Extendable Design
MSRP: $30.07
$30.07
$20.99
Save: $9.08 (30.20%)
Out of stock