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Used Duplex Milling Machines in Guangdong, China

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Overview

Duplex milling machines are heavy-duty mills equipped with two milling heads or spindles, allowing simultaneous or staged machining operations for higher throughput and flexibility. They handle large, complex workpieces and are common in metal fabrication, die making, and heavy industry. With robust tables, long travel, and precision feeds, duplex mills support multiple cutters or fixtures to reduce setup time and increase production efficiency.

FAQ

What should I inspect when buying a used duplex milling machine?

Check spindle runout and bearings, bed and table wear, backlash in drives, electrical controls, lubrication systems, and maintenance records. Verify that both heads align and move smoothly and test all feeds and stops.

How do I handle shipping for a duplex mill?

Arrange heavy-equipment transport with experience in machine tools. Plan for crating or skidding, secure lashing points, and coordinate lifting with a crane or forklift rated for the machine’s weight and footprint.

Are there special site requirements for installation?

Yes. Ensure a level, reinforced concrete floor, adequate overhead clearance for the taller twin heads, proper power supply, grounding, and access for rigging and maintenance.

What maintenance keeps a duplex mill running reliably?

Regularly check and replace spindle oil and bearings, maintain ways and slides (cleaning and oiling), inspect gearboxes and belts, test electrical controls, and keep alignment and backlash within specs.

How easy is it to find spare parts and service?

Availability varies by make and age. Common wear parts (belts, bearings, gibs) are usually available; for vintage or proprietary heads you may need specialist suppliers or remanufacturing services.