How to Select the Optimal High Speed Three Knife Trimmer

If you are in the process of selecting a high-speed three-knife trimmer for your bookbinding business, our range of equipment offers the ideal solution for your three-side trimming requirements. These machines are engineered for both standalone (offline) operation and seamless integration into high-speed inline production environments, including perfect binding lines and glue-applying lines (for sewn book blocks). Our trimmers deliver stable, high-speed three-side trimming for both finished books and book blocks, achieving impressive output rates of up to 4,200 cuts per hour.

A key feature across our high-speed three-knife trimmer series is the integrated book pre-stacking function. This capability allows for the trimming of multiple books simultaneously, significantly multiplying production efficiency. To accommodate diverse facility layouts, the infeed direction can be configured for either left or right entry based on installation requirements. The trimming sequence is meticulously controlled: the first cut addresses the fore-edge, followed by the second cut which trims the head and tail concurrently. Post-trimming, books are handled precisely by a mechanical gripper and transferred onto a delivery conveyor belt.

All models within our high-speed three-knife trimmer series are managed via intuitive touchscreen controls, facilitating fully automatic format changeovers. Critical adjustments, including the side guide, front guide, side knife spacing, delivery belt height, and clamping station height, are all driven by high-precision servo motors. This ensures exceptional stability, reliability, and accuracy. Furthermore, the systems are designed for user-friendly operation and maintain consistent, dependable quality over prolonged operational lifetimes.

Recognizing that different users have unique needs, our high-speed three-knife trimmer series includes models with distinct advantages:

HX80DH High Speed Three Knife Trimmer

HX80DH High-Speed Three-Knife Trimmer

This model incorporates a pre-stacking hopper. Operators pre-set the desired number of books per stack. Once this count is achieved, the entire stack is automatically fed into the trimmer for multi-book, three-side cutting. This method of stacking and simultaneous trimming provides a substantial boost in productivity. The HX80DH is primarily optimized for integration into inline high-speed glue-applying lines, where it efficiently trims sewn book blocks (often used in hardcover production) after the gluing and back-lining stage.

HX120DH High Speed Three Knife Trimmer

HX120DH High-Speed Three-Knife Trimmer

This trimmer utilizes a belt conveyor system to separate individual books before directing them to dual pre-stacking stations. After the stack count is pre-set, books accumulate in the first station. Upon reaching the target number, a rapidly rotating collection unit instantly switches, diverting incoming books to the second station while the completed first stack is transferred to the pre-pusher infeed hopper. A pusher then advances the entire stack into the trimming section. Simultaneously, the second station continues accumulating books. This alternating cycle enables continuous multi-book stacking and trimming, resulting in multiplied production efficiency. The HX120DH is capable of synchronizing with high-speed perfect binding lines operating at speeds up to 12,000 books per hour.

HX150DH High Speed Three Knife Trimmer

HX150DH High-Speed Three-Knife Trimmer

Differentiated from the HX120DH, the HX150DH employs a shingled stream (overlapping) infeed method to transport books efficiently to the stacking station. By pre-setting key parameters (such as pusher activation based on stack height/count), books are formed into stacks and subsequently pushed into the trimmer for multi-book, three-side cutting. This approach also facilitates the stacking and simultaneous trimming of multiple books, significantly enhancing production throughput. Its more direct and streamlined feeding and pre-stacking mechanism allows for seamless inline connection with ultra-high-speed perfect binding lines running at up to 18,000 books per hour.

As demonstrated, HXCP's comprehensive range of high-speed three-knife trimmers leverages distinct pre-stacking methodologies to achieve various levels of high-speed trimming performance. This ensures that we can provide tailored solutions to meet the diverse and demanding requirements of the modern bookbinding and print finishing industry.