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Black metal ceiling plate with flexible neoprene rubber joint and threaded center fitting

CHIEF MANUFACTURING

CHIEF MANUFACTURING CMA-345 Structural Ceiling Plate tv accessory

SKU CH-CZ12-5R5CN MPN CMA-345

A structural ceiling plate with a flexible neoprene rubber joint that minimises shock and vibration transfer, featuring a 1 1/2" NPT fitting for threaded extension columns

  • Product typeCeiling Plates and Adapters
  • Product colorBlack
  • Product dimensions3.4 in × 7.3 in × 7.3 in
  • Product weight7 lb (3.18 kg)
  • Flexible neoprene joint reduces shock and vibration transfer
  • Offset design allows cable exit when mounted to flat surfaces
  • 1 1/2" NPT fitting connects to threaded extension columns
  • Attaches directly to ceiling structural members for secure mounting
  • Compact 3.4" x 7.3" x 7.3" black plate weighs 7 lbs

Structural Ceiling Plate for Projector Mounts

The CHIEF MANUFACTURING CMA-345 is a structural ceiling plate designed to attach projector mounts to ceiling structural members. It suits installers who need a secure anchor point for a threaded extension column. The plate accepts a 1 1/2 inch NPT fitting for direct column connection. It is not for buyers who need a flush-mount solution without a drop column.

Neoprene Joint and Offset Cable Exit

A flexible neoprene rubber joint minimises the transfer of shock and vibration from the ceiling structure to the mounted equipment. The black finish matches common AV hardware aesthetics. An offset design provides a cable exit path when the plate is mounted to a flat surface. Dimensions are 3.4 by 7.3 by 7.3 inches with a weight of 7 lbs. Builders who require a solid ceiling block without vibration isolation should look elsewhere.

Fixed NPT Interface and Load Path

The unit uses a fixed 1 1/2 inch NPT threaded fitting, so the extension column must match that thread specification. No adapter or reducer is included in the scope. The plate transfers load directly into the building structure through the structural member attachment. Installers who need adjustable tilt or swivel at the ceiling connection point cannot achieve that with this fixed plate.

How it compares

Measured against everything we stock in TV Add-Ons & Bezel Kits, at today’s prices. Recalculated every night.

Price $148.99
Pricier than about 84% of the 104 comparable items (median $96.49).

Specifications

Product
Brand nameCHIEF MANUFACTURING
Model nameCMA-345
Product typeCeiling Plates and Adapters
Product colorBlack
Size & build
Product dimensions3.4 in × 7.3 in × 7.3 in
Product weight7 lb (3.18 kg)
Shipping weight3.08 kg
Package size208 × 206 × 89 mm

Questions about this item

How does the 1-1/2" NPT fitting limit the extension column I can use?

The plate accepts only a 1-1/2" NPT threaded column, so the column must match that exact pipe thread size.

What ceiling structure and hardware are required to mount the 3.4" x 7.3" base?

It must be fastened to a structural ceiling member such as a joist or beam using installer-supplied lag bolts or anchors.

How do I install the neoprene joint so it actually isolates vibration?

Thread the extension column fully into the NPT fitting, then torque the assembly to the structure; the rubber joint only works when the column is tight against the plate.

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