PM 43 – High-Performance Soundproofing Metallic Door

PM 43 is a professional-grade soundproofing door engineered to deliver outstanding sound insulation in technical, industrial, and high-performance environments. With a total thickness of 56 mm, it provides excellent control of airborne noise while maintaining the structural strength and durability required in demanding applications.

Developed to meet the highest standards of sound isolation. Its double-seal system, heavy core, and precision-fitted steel frame ensure reliable performance for studios, cinemas, machine rooms, and other areas requiring exceptional sound control.

How It Works

The PM 43 door combines steel sheets with a dense, heavy core and dual absorbent chambers, both fully filled with fire-rated (M0) materials. This composition effectively blocks and absorbs airborne noise across a broad frequency range.

A double sealing profile runs around the full perimeter of the door to ensure airtight sound containment. The door is mounted on adjustable heavy-duty hinges that allow a full 180° opening angle, providing both acoustic integrity and operational flexibility.

For enhanced user convenience, PM 43 includes a manual wedge-type stainless-steel closing system, ensuring smooth operation and tight sealing.

Key Benefits

• Certified Rw = 46 dB sound reduction (tested by LAIC, report 8-133/05).
• 56 mm thick acoustic structure with dual sound-absorbing chambers.
• Heavy, fire-rated M0 materials for superior insulation and safety.
• Continuous double seal around the perimeter for maximum sound isolation.
• Robust steel construction for long-term durability.
• 180° hinge rotation for full accessibility.
• Optional accessories: drop seal (floor-free version), vision panels, panic bars, automatic closers, and final painting.

Installation Overview

PM 43 is delivered as a complete set, including frame, hinges, seals, and locking system. The metallic frame can be supplied with anchor lugs or pre-drilled holes for screw fixing. Installation is compatible with concrete, brick, or steel structures.

The door includes a full peripheral frame for improved sealing and alignment. Optional elimination of the lower frame section is available when a mobile threshold seal is preferred.

Key Specifications

• Door leaf: 1.5 mm steel sheets on both sides
• Frame: metal frame with internal absorbent lining
• Perimeter sealing: double acoustic profile
• Locking system: stainless-steel manual wedge mechanism
• Surface finish: grey enamel primer
• Available formats: single or double-leaf configurations
• Standard dimensions: from 700 × 2000 mm to 1800 × 2000 mm

Best Suited For

• Recording studios and post-production rooms
• Cinemas and auditoriums
• Machine and plant rooms
• Industrial and research facilities
• Spaces requiring high levels of acoustic isolation

Precision Sound Control for Professional Environments

PM 43 sets the benchmark for metallic acoustic doors, combining advanced noise reduction with structural resilience and refined engineering. Contact DECIBEL today to specify PM 43 and ensure uncompromising acoustic performance in your project.