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Zanrosso ESA 12

Manufacturer: ZANROSSO Officine Meccaniche S.p.A. (Italy)
Type: ESA 12 hydraulic surface grinding machine
Production era: 1970s–1980s industrial design
The Zanrosso ESA 12 is a high-precision industrial surface grinding machine developed for the surface grinding of large-area components. The equipment features a robust cast-iron structure, hydraulic table movement, and a high-performance grinding spindle. The machine is suitable for the surface grinding of tool steel, machine parts, castings, and precision industrial components. The long hydraulic table travel allows for the machining of large workpieces, while the automatic feed ensures uniform surface quality. The large-diameter grinding wheel and stable column design enable high-precision and vibration-free machining. The machine is equipped with an industrial-grade hydraulic system and multiple electric drives.
Key technical specifications:
• Worktable size: approx. 1500 × 320 mm
• Automatic table stroke: approx. 1800 mm
• Maximum grinding length: approx. 1600 mm
• Table hydraulic feed rate: approx. 0 – 6000 mm/min
• Maximum distance between table and grinding spindle: approx. 940 mm
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• Grinding head maximum vertical travel: approx. 400 mm
• Grinding wheel diameter: approx. 350 mm
• Distance from grinding spindle centerline to column: approx. 380 mm
• Automatic feed: approx. 0.005 – 0.04 mm/stroke
• Grinding head vertical rapid travel: approx. 700 mm/min
Electric drives:
• Grinding spindle motor: approx. 10 HP – 1400 rpm
• Grinding spindle secondary speed: approx. 160 / 320 rpm
• Vertical rapid travel motor: approx. 0.75 HP
• Hydraulic motor: approx. 1 HP
• Coolant pump motor: approx. 0.13 HP
Dimensions and weight:
• Length: approx. 5160 mm
• Width: approx. 1280 mm
• Height: approx. 2290 mm
• Weight: approx. 2000 kg