Electric edge hemming machine HEM-12HB - Preda Machine

Preda Machine Electric Edge Hemming Machine: Precision Open & Closed Hemming for 0.3mm–1.5mm Sheet Metal

Introduction
As the leading manufacturer of duct and sheet metal machinery in China,

Preda Machine proudly introduces its Electric Edge Hemming Machine—a game-changer for industries requiring flawless, reinforced edges on thin to medium-gauge sheet metal.

Engineered for versatility, this machine effortlessly produces both open hems (simple folded edges) and closed hems (tightly compressed seams), making it indispensable for HVAC, automotive, and appliance manufacturing.

Below, we detail its advanced specifications and explain why it outperforms manual or outdated hemming methods.

Key Specifications of Preda’s Electric Edge Hemming Machine

Designed for precision and speed, this machine combines robust construction with smart automation:

Dual Capability: Open Hem vs. Closed Hem

Preda’s machine eliminates the need for separate equipment by handling both hem types with quick tooling adjustments:

1. Open Hem (C-Fold):

   • Creates a smooth, folded edge for aesthetic or non-structural applications (e.g., duct openings, panel edges).

   • Ideal for materials prone to cracking under high compression.

2. Closed Hem (Rolled Edge):

   • Produces a tightly compressed, leak-proof seam for structural integrity (e.g., automotive panels, industrial enclosures).

   • Prevents fraying and enhances load-bearing capacity.

Why Preda’s Electric Edge Hemmer Outperforms Traditional Methods

Traditional hemming often relies on manual labor or hydraulic presses, which lack precision and speed. Here’s how Preda’s electric solution excels:

1. Unmatched Precision

• Laser-guided alignment ensures consistent hem width (±0.2mm tolerance).

• PLC-controlled pressure avoids material deformation, even on ultra-thin 0.3mm sheets.

2. Rapid Switch Between Hem Types

• Change from open to closed hem in under 10 minutes (vs. hours with manual setups).

• Tool-free adjustments for common hem widths.

3. Energy and Labor Efficiency

• 3.5 kW servo motor consumes 40% less power than hydraulic systems.

• One operator can manage the entire process, reducing labor costs.

4. Durability

• Hardened tooling withstands 100,000+ cycles without wear.

• Minimal maintenance: Automatic lubrication system and self-diagnostic alerts.

Applications

• HVAC Ductwork: Reinforced edges for spiral ducts and fittings.

• Automotive Panels: Closed hems for door edges, hoods, and trunk lids.

• Appliances: Open hems for washing machine drums, oven panels.

• Metal Furniture: Aesthetic open hems for tables, cabinets.

Technical Advantages

• Smart Programming: Store 50+ hem profiles (width, pressure, speed) for repeat jobs.

• Material Savings: Precise hemming reduces scrap rates by up to 15%.

• Global Compliance: Meets CE, ISO, and OSHA safety standards.

Why Choose Preda Machine?

1. 30+ Years of Expertise: Trusted by HVAC and automotive giants worldwide.

2. Free Training & Support: On-site installation and operator training included.

3. Warranty: 2-year warranty on critical components.

Conclusion
Preda Machine’s Electric Edge Hemming Machine redefines efficiency for sheet metal fabrication. By seamlessly handling both open and closed hems on materials as thin as 0.3mm, it empowers manufacturers to achieve superior quality while slashing production time and costs. Whether you’re crafting ducts, automotive parts, or appliances, this machine delivers the precision and versatility your workflow demands.

Upgrade to Preda’s Electric Edge Hemming Machine—Where Innovation Meets Perfection.

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Meta Description:
Preda Machine’s Electric Edge Hemming Machine handles 0.3mm–1.5mm sheet metal with open/closed hems. Features PLC control, 12m/min speed, and CE/ISO certification.