520A Coil Binding Machine

The 520A is a heavy industrial double-coil binding machine listed on the company website. It is built for binderies and print finishers that produce coil-bound books in volume: notebooks, memo pads and wall and desk calendars, where a manual binder would be far too slow. The machine feeds coil automatically, binds the book and collects it to a conveyor, so the operator's job is loading paper and taking finished books away.

The specification values below are transcribed from the specification table published on the company website's product page for this model. The description's account of the machine's operation is reported alongside, as the description's own statements.

Specifications

Transcribed from the specification table on the company website's product page for the 520A. Where the product description gives a paper range that differs from the table's minimum width, the table value above governs.

Reading the Specifications

Working speed of 1,200 to 1,800 books per hour is the figure that places this machine in the industrial class. At that rate, a bindery can finish a run of several thousand notebooks or calendars in a single shift, provided paper supply and coil supply keep up. The range reflects different book sizes and thicknesses: smaller, thinner books run at the faster end, larger or thicker books at the slower end.

Maximum paper width of 520 mm and maximum binding width of 507 mm describe the largest book the machine handles. The 13 mm difference between the two is the margin the machine needs at the edges for the coil and the punching mechanism. Minimum paper width of 75 mm sets the smallest book the machine accepts, which covers small memo pads as well as full-size notebooks.

Double-coil wire diameter from 1/4 inch to 7/8 inch, at pitches of 1:2 and 1:3, describes the range of coil sizes the machine works with. Thicker books need thicker coil, and the pitch — the spacing of the loops — must match the punched holes. A buyer should confirm that the coil sizes and pitches they stock match this range before ordering.

Power and air requirements matter for installation planning. The main unit runs on 220V single-phase power at 0.2 kW, but the machine also needs a customer-supplied air compressor of 1.5 kW delivering 6 to 8 bar of air pressure. Floor space of 1,800 by 760 by 1,230 mm, and a main-unit weight of 510 kg, mean the machine needs a proper industrial floor position, not a desktop.

The product description adds automatic hook loading, a fault prompt, a Chinese and English display, and automatic book collection to a conveyor. Those features describe how the machine is operated day to day, and they are reported here as the description's own statements.