Manual Seam Closing Machine Prinzing RFZH 4

Manual Seam Closing Machine Prinzing RFZH 4


Prinzing RFZH 4 is a specialized, compact, manual machine designed for high-precision and rapid closing (pressing) of longitudinal lock seams on cylindrical tube workpieces (ductwork, downspouts). The RFZH 4 model features a wall-mount design and is intended for working with thin sheet metal up to 0.4 mm thick. Thanks to its manual drive and compact dimensions, it is an ideal solution for small-scale production where high-quality seam sealing is required.

Features and Advantages

Feature Advantage
Manual Drive (H) Cost-effectiveness and mobility — requires no power connection, features low weight, and has minimal maintenance costs.
Wall Mounting Space-saving — thanks to a special bracket, the machine does not occupy valuable floor space in the workshop.
Precision Mechanics High seam quality — all moving parts are mounted on roller bearings; flat guides minimize play.
Screw Adjustment Force control — the upper pressure roll is adjusted via a spindle, allowing for precise setting of pressure force based on material thickness.
Reinforced 520 mm Mandrel Operational convenience — allows for easy positioning and processing of workpieces up to 1040 mm in length.

Standard Equipment

The base configuration of the Prinzing RFZH 4 includes everything necessary to immediately begin lock seam closing operations:

  • Main Machine Body: Features a reinforced bracket for wall mounting.

  • Manual Drive System: Equipped with a worm gear reducer.

  • Mandrel (Console): Round profile with a diameter of 35 mm.

  • Hardened Pressure Rolls: One pair of rolls for seam closing (type chosen at the time of order: for internal, central, or external seams).

Options

To expand the machine's functionality, the following additional accessories are available:

  • Assembly Stand: A specialized floor stand for mounting the machine instead of wall attachment.

  • Additional Rolls: Interchangeable pairs of rolls for working with different types of lock joints or non-standard seam widths.

  • Square/Rectangular Mandrel: Additional mandrels for processing tubes with non-circular cross-sections.

Technical Specifications

Parameter Value
Max. Sheet Thickness (Steel ) 0.4 mm
Drive Type Manual (mechanical)
Working Console Length (Mandrel) 520 mm
Max. Tube Length (Processed in 2 passes) 1040 mm
Min. Mandrel Diameter 35 mm
Adjustment Mechanism Manual (spindle)
Weight 30 kg
Dimensions ()

Prinzing prinzing-rfz_eng

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