Electromechanical Seam Closing Machine Spiro / Firmac Nu-Loc

Electromechanical Seam Closing Machine Spiro / Firmac Nu-Loc


Spiro / Firmac Nu-Loc is a high-speed automatic machine developed through the collaboration of Spiro (Switzerland) and Firmac (UK). It is specialized for the airtight closing of pre-formed longitudinal lock seams (corner locks) on straight rectangular ducts. Its primary competitive advantage is its incredible speed: it closes a seam in less than 15 seconds, making it one of the fastest machines in its class. Nu-Loc is approved for the production of low, medium, and high-pressure duct systems, guaranteeing seam quality in a single, silent pass.

Features and Advantages

Feature Advantage
One-Pass Seam Closing Maximum Speed — completes a finished seam in less than 15 seconds, significantly boosting overall workshop productivity.
Automatic Pressure Adjustment No Setup Required — all rolls are spring-loaded to provide the correct pressure for any metal thickness within the 0.6–1.2 mm range, eliminating manual reconfiguration.
High Seam Quality (Nu-Lock) Universal Use — the closed seam is certified for use in low, medium, and high-pressure ventilation systems.
Silent Operation Workplace Comfort — the machine operates quietly, improving the working environment for personnel.
Full-Length Support Precision — full duct support is provided along the entire length, preventing deformation of large or heavy workpieces.
Unlimited Length Flexibility — allows for the processing of ducts of unlimited length (with appropriate auxiliary support tables).

Standard Equipment

The Nu-Loc model is designed for simple and rapid operation, including:

  • Robust, Compact Construction: Featuring full-length duct support.

  • High-Performance Electromechanical Drive.

  • Spring-Loaded Forming Roller System: Wheels that automatically adapt to the metal thickness without operator intervention.

  • Automatic Seam Closing: No additional clamping mechanisms required.

  • Integrated Safety Mechanisms.

Options

  • 45° Table Adjustment: An option that allows the work table to be tilted by 45° relative to the standard position. This significantly facilitates the loading and manipulation of large, bulky ducts.

  • Automatic Mastic Kit Solution: A system that automatically injects sealant (mastic) directly into the seam during closure, ensuring maximum airtightness (Class D).

Technical Specifications

Parameter Value
Max. Material Thickness (Galvanized Steel) 0.6–1.2 mm
Min. Duct Cross-Section
Min. Duct Length 400 mm
Seam Closing Time Under 15 seconds
Motor Power 3.0 kW (up to 5.5 kW in some versions)
Power Supply ()
Dimensions ()
Weight (approx.) 800 kg

datasheetnuloc

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