All About Round Corner

Rounded corners are the unsung hero of specialty book binding options, and books with round corners are welcomed by most readers, first the shape reduces the wear and tear of corners since they are less likely to be bent than a pointed corner. 

These types of corners are standard for board books and a great option for any children's book as they protect children from accidental paper cuts. Since pointed corners are considered the norm, rounded corners can add a creative style and fuction to your products.

Especially, the addition of rounded corners to your notebooks delivers a contemporary feel and really is 'the finishing touch'. 

Now I will share different round corner making machine, some for the book block, some for the hardcover case, some are semi-auto, and some are connecting with production line.

Book Block Corner Rounding Trimmer

From cards/poker to folding leaflets, then to bound book blocks, whatever the saddle stitching, saddle sewing, lay-flat binding, sewn binding, and the perfect binding, etc., we have many machine choices on these book block's corner rounding.

Manual Corner Cutter

Manual Corner Cutter

Manual Corner Cutter is applicable for cutting the straight, round, and special corners of the cover paper and paper board bu manual, R3-R10 round corner trimming blades are for choosing, easy operation, and cutting accurately.

Electrical Corner Cutting Machine

Electrical Corner Cutting Machine

The function is the same as the Manual Corner Cutter, but driven by a reduction gearbox with electric power, controlled by the mechanical clutch, so the maximum trimming pile heigh can be 120mm, save labor, high efficiency, R2.5-R12 round corner trimming blades are for choosing, easy operation, cutting accurate.

Double Head Round Corner Cutting Machine

Double Head Book Block Round Corner Trimming Machine

Double Head Round Corner Cutting Machine is used to trim the paper, book block, paper board's two corners simultaneously, only needs one operator to feed the paper block from the front, is easy to operate, and keeps safe, the trimmer is driven by hydraulic, stable and cutting accuracy, the blades are available for different size radii.

Automatic Double Head Round Corner Cutting Machine

Automatic Double Head Round Corner Cutting Machine

Automatic Double Head Round Corner Cutting Machine is used to trim the paper, book block, and paper board's two corners simultaneously, with the automatic feeding and collecting sets, only need one operator to feed the paper block in the hopper, automatically send it to trim which derived by hydraulic, stable and cutting accuracy, easy operation and keep safe, the blades are available for different size radii.

Automatic High Speed Book Block Corner Rounding Trimmer

Automatic High Speed Book Block Corner Rounding Trimmer

Automatic High Speed Book Block Round Corner Trimming Machine is your ideal high productivity machine for the diarytebook, perfect binding book, board book and photo book's book block round corner trimming, can be connected with the three-knife trimmer, after the three-side trimmer, the book block will be sent to the trimmer stack with the automatic feeder, patented precise single-angle positioning trimmer system allows the book block's round corner is precise and smooth, and the corner mold is easy to change, automatic counting and stacking, all process is hand free and high effiency, the speed can be 40 pcs/min.

So, you may have discovered that all book block corner rounding machines are the corner trimmer with different radii blade.

Hardcover Case Corner Rounding Forming

Softcover book's cover can also be trimmed into a round corner shape, but how to round the hardcover case? 

We have two ways:

One is making the hardcover case in the hardcover case making machine directly, and the round corner board with the corner die-cutting star-shape cover materials is converted to the round corner hardcover case by molds, in the production process. 

The other is making the hardcover case, also in the hardcover case making machine, but the board with round corners, the cover materials no need to die-cutting the corners to the special star-shape, just cut the corner, then making the flat corner hardcover case (the corner is not solid due the round corner board), the next step is forming the four corners of the hardcover case by heating and compressing.

According to the different output and speed, here are some choices for you.

High Speed Hardcover Case Making Machine

High Speed Hardcover Case Making Machine

The High Speed Hardcover Case Making Machine with round corner molds, can make the round corner hardcover case at the speed of 60 cycles/min automatically.

Semi Auto Hardcover Book Case Corner Rounding Machine

HX500CR Semi Auto Hardcover Book Case Corner Rounding Machine

This Semi-Auto Hardcover Book Case Corner Rounding Machine is the ideal equipment for digital/short-run round corner hardcover case forming, whatever hardcover is made by machines or manually, just change the blades with different radios, heating and form one by one, easily operate with lower investment.

Automatic Hardcover Case Corner Rounding Machine

HX60R Automatic Hardcover Case Corner Rounding Machine

If you are running a high quantity of the round corner hardcover case, and you'd like to make the round corner by heating and compressing, some customers like smooth corner edges by heating, the Automatic Hardcover Case Corner Rounding Machine is fitting for you, it can be connected with the high-speed hardcover case making machine, pressed and formed the cases into round corners by the air cylinders and the hot press, the speed is matching the case maker.

Hardcover Case Wrapping and Corner Rounding Machine

Some stationery manufacturers' main products are PU cover materials and hardcover notebooks, the elastic and thick PU cover is difficult to fold and form to the round corner, so this machine's folding and heated forming function is fitting for these requirements.

Whatever the reason for having the round corner books, for the safety of the children board book, for the elegant and creative style of the book design, or the notebook/diary's basic function, you can choose the suitable corner rounding machines for the book block and the hardcover case.