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
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
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
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
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
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
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Machine Type
Double-Side Fine Grinding, Lapping & Polishing
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Models
ELC 500, ELC 900, ELC 1200, ELC 1500, ELC 2000, ELC 2500
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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 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.
Melchiorre ELC Series Technical Specifications
| Model | Wheel Motor Power / Max Speed | Carriers & 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 |











































