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Melchiorre ELC Series – Precision Fine Grinding & Polishing Systems

Ecotech Machine Tool offers high-precision double-side fine grinding, lapping, and polishing machines manufactured in Italy by Melchiorre (a SpeedFam company). Designed for high-volume manufacturing, the Melchiorre ELC series delivers exceptional surface finish quality with sub-micron tolerances.



High-Precision Double-Side Finishing | Melchiorre ELC Series

Engineered for Automotive, Aerospace, Hydraulics & Technical Ceramics Manufacturing
The Melchiorre ELC double-side fine grinding series excels in high-volume, flat-surface production across demanding industries—including automotive diesel fuel pumps, mechanical seals, bearings, hydraulic rotors, and technical ceramics. It integrates ball-screw feedback pressure control and in-process sizing for peak operational efficiency.

The Melchiorre ELC family offers machine configurations ranging from compact models up to heavy-duty ultra-large production platforms, providing all-in-one solutions for double-sided fine grinding, lapping, and polishing.

Unmatched Accuracy & Tolerances

Engineered to satisfy demanding international precision standards, Melchiorre ELC fine grinders guarantee extreme component accuracy and repeatable quality control down to 0.01 micron using statistical methods (Cpk/Cmk).

  • Parallelism & Flatness: Tolerances less than 1.0 micron (sub-micron capable)
  • Surface Finish: Exceptionally low surface roughness (Ra) on flat parts
  • In-Process Sizing: Real-time contact piece measuring system with sub-micron resolution

Melchiorre ELC Machine Models

Melchiorre ELC 500

Melchiorre ELC 900

Melchiorre ELC 1200 / 1500

Melchiorre ELC 2500

Built around heavy-duty monolithic C-frame structures for maximum mechanical rigidity, Melchiorre ELC machines feature independent drives for the upper wheel, lower wheel, and internal gear ring. This enables precise speed and torque coordination across all fine-grinding variables.

  • Electronic Retroactive Control: Precise grinding force control via ball screw execution.
  • Anti-Vibration Oscillation System: Automatically locks upper grinding wheel oscillation during grinding stages.
  • Thermal Management: Advanced cooling control systems with real-time temperature feedback directly on the operator interface.
  • Automated Production: Seamlessly pairs with automatic carrier loading/unloading systems, inline cleaning, and washing stations.
  • Intuitive Control Interface: Touchscreen color panel with graphical self-learning cycle programming.

Primary Applications

  • Automotive & Diesel Components: Fuel injection pumps, stators, rotors, piston rings, and cover pumps
  • Fluid Power & Hydraulics: Mechanical seals, valve plates, pump palettes, and wear plates
  • Advanced Materials: Technical ceramics, hard metals, sensor discs, and silicon wafers
  • Precision Engineering: Bearing rings, compressor parts, optics, watch parts, and sapphire glass

Frequently Asked Questions

What materials and components are best suited for the Melchiorre ELC Series?

The ELC Series processes a wide range of hard and sensitive materials including technical ceramics, hard metals, silicon, optics, and watch glasses. Key components include automotive fuel pumps, diesel injection parts, mechanical seals, bearing rings, piston rings, hydraulic rotors/stators, sensor discs, and valve plates.

What level of surface finish and dimensional tolerance can these machines achieve?

The ELC series delivers sub-micron performance, achieving flatness and parallelism tolerances under 1.0 micron. The system also supports high-resolution quality control down to 0.01 micron using statistical methods (such as Cpk and Cmk) to ensure tight batch-to-batch consistency.

How does the in-process piece measuring system function?

The machines incorporate an integrated contact measuring system that measures workpieces in real-time during grinding with a resolution under 1 micron. Non-contact, indirect measurement options are also available to monitor part height and stock removal without stopping the machine.

How does the machine design minimize vibration and control grinding pressure?

Built around a monolithic C-frame structure for maximum rigidity, the machine uses electronic retroactive pressure control via a ball screw mechanism. It features an automatic oscillation locking system that stabilizes the upper grinding wheel during critical cycle stages to suppress vibration.

Can the ELC Series be integrated with automated loading and washing systems?

Yes, the ELC series supports fully automated carrier loading and unloading systems (even with the grinding wheel lowered) and can be connected directly to inline brushing, washing, and drying stations for high-volume automated production lines.

What machine sizes and power configurations are available?

The series ranges from compact units like the ELC 500 (550 mm wheel diameter, 5.5 kW grinding motor) up to heavy-duty production units such as the ELC 2000 (2,000 mm wheel diameter, 75 kW motor) and the massive ELC 2500 (2,500 mm outer wheel diameter with ~200 kW total power).


General Information

  • Machine Type

    Double-Side Fine Grinding, Lapping & Polishing

  • Models

    ELC 500, ELC 900, ELC 1200, ELC 1500, ELC 2000, ELC 2500

  • Wheel OD Range

    550 mm – 2,500 mm
    21.6 in – 98.4 in

  • Tolerances

    < 1.0 µm (Parallelism / Flatness)
    Measurement resolution < 0.01 µm

  • Manufacturer

    Melchiorre Srl (a SpeedFam company)


About Melchiorre

Melchiorre - A SpeedFam Company

Melchiorre Srl, part of SpeedFam Group, is a premier Italian machine tool manufacturer specializing in high-precision fine grinding, flat lapping, and polishing technology.

Melchiorre provides tailored, complete production solutions featuring high material removal rates, automated loading, and sub-micron quality control systems.


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Melchiorre ELC Series Technical Specifications

ModelWheel Motor Power / Max SpeedCarriers & Max Piece Size
ELC 500
5.5 kW | 200 RPM | Weight: 2,500 kg

5-6 Carriers (Ø 160 mm) | Max Piece: 150 mm

ELC 900
18.5 kW | 350 RPM | Weight: 6,000 kg

5-6 Carriers (Ø 254 mm) | Max Piece: 230–280 mm

ELC 1200
37 kW | 120 RPM | Weight: 10,000 kg

4-5 Carriers (Ø 430 mm) | Max Piece: 400–480 mm

ELC 1500
37 kW | 100 RPM | Weight: 12,000 kg

5 Carriers (Ø 520 mm) | Max Piece: 495–620 mm

ELC 2000
75 kW | 90 RPM | Weight: 35,000 kg

4-5 Carriers (Ø 720 mm) | Max Piece: 690–750 mm

ELC 2500
~200 kW Total | 60 RPM | 4.5m x 4.0m

4 Work Carriers (Ø 1050 mm) | Ultra Large Format

Technical Machine Documentation

ELC Series
Catalog

Melchiorre ELC Machine Range (500–2000)

ELC 2500
Datasheet

Heavy-Duty Ultra Large Fine Grinder Specs

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