U shape auto duct line 5Mini auto duct line 5Auto duct line 5Auto duct line 3Auto duct line 2Duct Line 5 U shapeDuct Line 5Duct line 3Duct line 2Auto coil LineSpiral tubeformer PD1602 +plasma cutSpiral tubeformer PD1602Spiral tubeformer PD-1500Mold type spiral tubeformerFlexible spiral duct making machineFlat oval duct making machinehydraulic elbow makerElectric elbow maker machineDuct elbow makerSpot welderRound flange forming machineRotary beading machine3 roller rolling machineAngle iron bending machineCNC plasma cutting machineDuplex TDF flange former T-16-2 with cleatDuplex TDF flange former T-16-2 without cleatTDF flange forming machine T12TDF flange forming machine T15TDF flange forming machine T16TDF flange forming machinePittsburgh lock forming machine SA-12HBPittsburgh lock forming machine SA-15HBS&C cleat lock forming machine SA-12SRound duct lock forming machine SA-12CLock forming machineManual folding machine 1300mm to 2500mmManual TDF folding machine 1300-2500mmPneumatic TDF folding machine 1300Electric duct folding machineAmerican standard folding machineCNC hydraulic Press BrakeDuct folding/bending machineHand held seam lockerPneumatic seam lockerHydraulic seam lockerPittsburgh seam lockerTDC flange machine with grooveTDC flange forming machine without grooveTDC flange machinePower Fastener for TDC fasteningDuct beader 1300mmDuct beader 2000mmDuct beading machinePower slitting machineAutomatic TDF corner making lineManual TDF corner lineTDF corner moldTDC corner moldG clamp moldTDF/C G Clamp Corner punching machinePneumatic TDF corner maticsPortable hydraulic TDF corner maticsTDF corner maticsElectric shearing machineHydraulic guillotineShearing machineElectric angle iron bening machineHydraulic angle iron bending machineAngle iron flange forming machineCNC plasma cutting machineCleat benderTDF flange formerPittsburgh lock formerTDF folding machinePortable seam lockerDuct beaderRotary beader crimperBeader and SlitterDuct MachineAuto Duct production linesU Shape Auto Duct Line 5Linear Shape Auto Duct Line 5Auto Duct Production Line 3Auto Duct Production Line 2Mold type spiral tube former machineCNC Plasma Cutting MachineCNC Angle Iron Production LineAuto hydraulic gorelocker machineElectric gore locker machineHydraulic OvalizerSheet metal edge hemming machineFatory videosMessagesNews
Metal Edge Hemming Machine

Preda Machine Electric Sheet Metal Edge Hemming Machine: Precision Hemming for 0.4mm–1.5mm Materials


In industries where precision and durability matter, the edge of a sheet metal component can make all the difference. Preda Machine, China’s foremost manufacturer of advanced sheet metal machinery, introduces its Electric Sheet Metal Edge Hemming Machine—a state-of-the-art solution designed to create flawless 10mm (1/2-inch) open or closed hems on materials ranging from ultra-thin 0.4mm to robust 1.5mm thicknesses. Ideal for HVAC, automotive, and appliance manufacturing, this machine combines speed, versatility, and reliability to meet the highest industrial standards.

pittsburgh machine 03.jpg

Key Specifications

The Electric Edge Hemming Machine is engineered for precision and efficiency. Below are its core technical specifications:

  • Material Compatibility:

    • Galvanized steel, stainless steel, aluminum.

    • Thickness range: 0.4mm to 1.5mm.

  • Hemming Capabilities:

    • Hem Width: Fixed 10mm (1/2-inch) or adjustable based on tooling.

    • Hem Types: Open hem (C-fold) and closed hem (rolled edge).

  • Performance:

    • Motor Power: 4 kW servo motor (energy-efficient, quiet operation).

    • Hemming Speed: 6–10 meters/minute (adjustable via programmable controls).

    • Tooling Material: High-carbon steel with nitride coating (HRC 60+ hardness).

  • Control System:

    • PLC with 10-inch touchscreen interface.

    • Pre-set programs for common hem profiles and rapid job switching.

  • Physical Dimensions:

    • Length: 2200mm | Width: 1100mm | Height: 1400mm.

    • Weight: 1600 kg (sturdy welded frame for vibration-free operation).

  • Safety Features:

    • Emergency stop button, safety light curtains, overload protection.

      pittsburgh machine 3.jpg

Open Hem vs. Closed Hem: Versatility Redefined

This machine’s ability to handle both open and closed hems eliminates the need for multiple tools or processes.

  1. Open Hem (C-Fold):

    • Function: Creates a smooth, folded edge with a visible gap, ideal for non-structural applications.

    • Applications: Aesthetic edges on HVAC ducts, furniture, and decorative panels.

    • Advantages: Prevents sharp edges, reduces material fatigue in thin sheets.

  2. Closed Hem (Rolled Edge):

    • Function: Compresses the metal into a tight, seamless roll for structural integrity.

    • Applications: Automotive panels, industrial enclosures, and leak-proof duct joints.

    • Advantages: Enhances load-bearing capacity and corrosion resistance.

Technical Advantages Over Traditional Hemming Methods

Preda’s electric hemming machine outperforms manual or hydraulic alternatives with cutting-edge features:

  • Laser-Guided Precision:
    Ensures consistent hem width (±0.1mm tolerance) across all materials, even at 0.4mm thickness.

  • Rapid Tooling Adjustments:
    Switch between open and closed hem configurations in under 10 minutes with tool-free clamps.

  • Energy Efficiency:
    The 4 kW servo motor reduces power consumption by 30% compared to hydraulic systems.

  • Durability:
    Hardened tooling withstands 150,000+ cycles, minimizing downtime for replacements.

  • Smart Automation:
    Store up to 50 hem profiles for repeat jobs, with real-time diagnostics to prevent errors.

    pittsburgh machine 7.jpg

Applications Across Industries

  • HVAC Systems: Reinforced edges on spiral ducts, elbows, and fittings.

  • Automotive Manufacturing: Closed hems for door panels, hoods, and trunk lids.

  • Appliance Production: Open hems on washing machine drums, oven doors, and refrigerator panels.

  • Architectural Metalwork: Clean edges for roofing sheets, cladding, and signage.

Why Preda Machine Stands Out

  1. Proven Expertise: Over three decades of innovation in sheet metal machinery.

  2. Global Standards Compliance: CE, ISO, and OSHA certifications ensure safety and quality.

  3. Comprehensive Support: On-site training, 24/7 technical assistance, and a 2-year warranty.

Conclusion
Preda Machine’s Electric Sheet Metal Edge Hemming Machine is a game-changer for manufacturers seeking precision, speed, and flexibility. With its ability to produce 10mm open or closed hems on materials as thin as 0.4mm, this machine streamlines production while delivering industrial-grade durability. Whether you’re crafting HVAC components, automotive parts, or consumer appliances, Preda’s technology ensures every edge meets the highest standards of quality and performance.

Elevate your production line with Preda Machine—where innovation meets excellence.

SEO Keywords:
Electric sheet metal hemming machine, 10mm edge hemmer, open and closed hem machine, China sheet metal equipment, Preda hemming machinery.

Meta Description:
Preda Machine’s Electric Edge Hemming Machine creates precise 10mm open/closed hems on 0.4mm–1.5mm sheet metal. Features PLC control, 10m/min speed, and CE/ISO certification.


Company Information

Anhui Preda Machinery Manufacturing Co., LTD. is a manufacturing company. Our company is committed to the production of HVAC duct production machines. Our company has more than 10 years of production and export experience. Anhui Preda Machinery Manufacturing Co.,LTD is located in Hongyang Industrial Park, Bowang Town, Bowang District, Ma'anshan City, Anhui Province, China. It is only 20 kilometers away from Nanjing International Airport, which also facilitates customers from all over the world to come to our factory to have a convenient face-to-face conversation and visit.

We manufactured and exported auto duct lines, CNC plasma cutting machine, TDF flange forming machine, pittsburgh lock forming machine, spiral duct forming machine, elbow making machines, TDC flange forming machine, oval duct forming machine and so on. All our machines are popular in the ventilation pipe manufacturing industry. We also exported CNC hydraulic press brake machine, CNC hydraulic shearing machine with factory price and best quality. All of our duct machines are in stock, we will manufactured the most of standard commonly used machine as inventory, so if our customers need, we will arrange delivery all the time.

We also have our after-sale servie teams, we support our engineers overseas service. When you met the problems, we will help you solve the problem in time, and all the machines we will have a lifetime warranty. We use our sincerity to serve our customers and expect more customers to choose Anhui Preda Machinery Manufacturing Co., LTD.

Packaging & Shipping

Delivery details

Customers purchase our auto duct lines and we will ship them through containers. The auto duct line 3 and the aut duct line 2 will be transported through the 20' container, and the auto duct line 5 and U-shape auto duct line will be transported through the 40' container. CNC plasma cutting machine will also be transported through the 20' container. All machines transported through the container are inside the container which we will pull the two sides of the machine with thick wire ropes and hooks so that they do not shake during shipping and cause the machine to collide. A certain amount of movable space is reserved between the machine and the machine to ensure that the machine is intact when it reaches the customer's factory.
The packaging of small machines such as the duct TDF flange forming machine, the pittsburgh lock forming machine, and the elbow making machine will be packed in wooden cases. The chassis is welded by channel steel and the bottom is reserved for 10cm for easy loading and unloading. It will be fixed with wooden boards around to avoid collisions during transportation.

FAQ

1. How to get a accurate quotation from Preda Machine?

Provide the machine name you want, the specifications you need and the quantity of machine, we shall quote accordingly!

2. What's the shipping cost from China to your country?
Please kindly tell us your nearest port to your place. We have reliable shipping forwarder to insure cheap, safe, convenient and timely delivery via sea.

3. Payment terms, MOQ, warranty, FOB.
Payment terms: 20% TT paid in advance, the balance of 80% before the shipment.
Minimum order quantity: 1 set of any machine of Preda Machine.
Delivery time : 5days after order confirmation. As a real manufacturer, we normally stock our machine in at least 5-10 sets including auto duct line 5, auto duct line 3, auto duct line 2!
And at least 20 sets each for TDF flange forming machine, Pittsburgh lock former, TDF folding machine, Pneumatic folder and etc...

Shipping terms : FOB, CFR, CIF and etc.. according to your requirements.
Warranty:24 months after our machines arriving at you.


4. What's the package?
Fumigation-free plywood case for LCL and nude package for full container basis such duct production line 5, duct auto line 3, duct line 2...

5. What about commissioning service?
We can offer commissioning service, the buyer need to pay for all the transport, salary, hotel, meals for Preda Machine technicians caused during the service period.

6. What's policy for guarantee and broken parts?
Warranty period of equipment is two years, during which the broken parts and spares caused by quality can be offered free. After guarantee period, all broken parts or easy wearing parts will be charged in a most competitive price ever in the market!