Manual Seam Closing Machine Prinzing RFZH 12

Manual Seam Closing Machine Prinzing RFZH 12


Prinzing RFZH 12 is a large-scale, floor-mounted manual machine designed for the high-quality and reliable pressing of longitudinal lock seams on tube workpieces (ductwork, ventilation, and chimney pipes). This model serves as a transition from light manual machines to powerful motorized complexes (RFZ). Thanks to its reinforced construction and long working console, it allows for processing steel up to 1.2 mm thick and large-diameter products with high precision, without requiring an electrical connection for the seam-closing operation itself.

Features and Advantages

Feature Advantage
Max. Sheet Thickness 1.2 mm Productivity — capability to process thicker and stronger metals compared to compact models (e.g., stainless steel, thick-walled galvanized steel).
Robust Box-Shaped Construction Reliability and Stability — the box-shaped welded frame is designed for heavy loads and guarantees the absence of vibrations when working with heavy workpieces.
Long 1020 mm Mandrel Large Tube Processing — allows for closing seams on tubes up to 2 meters long (in two passes), which is critical for large ventilation systems.
Large Min. Diameter 90 mm Professional Segment — oriented towards the production of ductwork and industrial pipes of medium and large diameters.
Screw Adjustment of Rolls High Precision — manual feed of the pressure roll via a spindle ensures precise pressure dosing and an ideal seam closure regardless of the lock type.

Standard Equipment

The base configuration of the Prinzing RFZH 12 is supplied for efficient manual work with large-scale products:

  • Main Machine Body: Featuring a reinforced floor-mounted box-shaped welded construction (not for wall mounting).

  • Manual Drive Mechanism.

  • Long Working Console (Mandrel): Providing a seam length of 1020 mm.

  • High-Strength Hardened Pressure Rolls: One pair of rolls that can be optimized for internal, external, or central lock seams.

  • Round Mandrel: Minimum diameter of 90 mm.

Options

Since the RFZH 12 is a manual version, most options are related to expanding its tooling capabilities:

  • Additional Rolls: Interchangeable pairs of rolls for specific types of lock joints or for working with different materials (e.g., stainless steel).

  • Non-Standard Cross-Section Mandrels: Specialized mandrels for processing square, rectangular, or oval ductwork.

Technical Specifications

Parameter Value
Max. Sheet Thickness (Steel ) 1.2 mm
Drive Type Manual (mechanical)
Working Console Length (Mandrel) 1020 mm
Max. Tube Length (Processed in 2 passes) 2040 mm
Min. Mandrel Diameter 90 mm
Construction Floor-mounted, box-shaped welded frame
Weight 320 kg
Dimensions ()

Prinzing prinzing-rfz_eng

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