Product Description
MS-25 FS Fully Automatic 3 Knife Book Trimmer Machine /book cutting machine/ book making machine and Book Edge Trimmer Is Best Three Knife Trimmer from factory
Changxing Inmai Machinery Co., Ltd. Is a leading manufacturer of three-knife trimmers and back-loop glue-binding lines in China.
With over 15 years of dedicated experience in the design and manufacturing of three-knife trimmers and over 25 years of expertise in the printing and finishing industry, we have successfully manufactured and installed hundreds of machines across China and all over the world, earning a leading market share and outstanding customer satisfaction. Renowned for their precision cutting, reliable performance, and user-friendly operation, our book trimmers have become the go-to choice for printing and bookbinding professionals.
To support perfect binding lines, we offer a comprehensive range of high-efficiency auxiliary equipment, including: three knife trimmer, weight machines, book stacker, steering machine, conveyors, helping clients achieve greater automation and smoother workflows in book making Machine.
The 15 Series is optimized for digital printing users.
The 25 Series caters to those producing commercial samples, hardcover books, and premium notebooks.
The 35 Series is specifically engineered for high-volume production of textbooks and supplementary educational materials.
Our products hold a significant market share in China and consistently receive outstanding customer satisfaction.
High-Precision Trimming | Smart Automation | Ideal for Perfect Binding Lines
The MS-25FS is a fully automatic three-knife trimmer designed to deliver clean, accurate cuts on all three edges of perfect-bound books. Engineered for both standalone use and inline integration with perfect binding systems, the MS-25FS ensures maximum efficiency, high cutting precision, and minimal manual intervention.
Key Highlights
- All-in-One Servo System
Equipped with multiple servo controls: book feeding, front knife, side knives, left stopper, book alignment, and main drive - ensuring smooth, synchronized operation.
- Integrated Pneumatic Systems
Pneumatic clamping and pressing systems ensure every book is securely held for consistent and clean cuts.
- Precision Three-Side Cutting
Efficiently trims the head, tail, and fore-edge of books with high accuracy - ideal for perfect-bound books.
- Anti-Scratch Feeding Path
The book feeding channel is fitted with a soft conveyor belt and anti-scratch rollers, reducing damage to book covers and bottom edges.
- Fast Setup & Format Changeover
With servo-driven adjustments and automatic start/stop functionality, switching between book sizes is quick and effortless.
- Compact Integrated Knife Platform
A simplified knife module minimizes mechanical complexity, reduces maintenance needs, and improves stability.
How It Works
- Book Alignment & Feeding
Books with rough edges are aligned and delivered to the pusher carriage via the servo-controlled feeding system.
- Clamping & Transport
The carriage clamps the book and moves it into the cutting station.
- Book Pressing & Cutting
The pneumatic pressing system holds the book in place.
- Side knives trim the left and right edges
- Front knife trims the leading edge
- All cuts are made in one smooth cycle
- Ejection
After cutting, the pressing system releases the book, and a secondary pusher transfers it to the delivery conveyor - completing one trimming cycle.
Ideal For
- Commercial book printers
- Short-run and on-demand print service providers
- High-end publishing operations
- Businesses requiring fast turnaround with premium finish quality
Why Choose MS-25FS?
• Three-Knife Precision: Achieves consistent, high-quality trimming on all three sides of the book for a professional finish.
• Servo-Driven Automation: Ensures high precision and reduces the risk of mechanical failure, even in high-volume operations.
• Adaptable to Your Workflow: Whether as a standalone unit or part of a larger finishing line, the MS-25FS integrates easily into your existing operations.
• Enhanced Cutting Speed and Efficiency: Faster setup times and quick format changes ensure that even short-run or on-demand projects are completed in record time.
Product Parameter
Item number |
Parameters |
Unit |
Remarks |
Max. cutting size A*B |
300*300 (standard)/ 390*300(Optional) |
mm |
A: Side knife B: Front knife H: Height |
Min. cutting size A*B |
150*90 |
mm |
Max. cutting height H |
70 |
mm |
Max. cutting speed |
25 times |
Min |
|
Overall power |
8 |
Kw |
|
Book pressing pressure |
5-10 |
Kn |
|
External size(L*W*H) |
3250 *3050 *1700 |
mm |
Standard size |
Net weight |
3200 |
Kg |
|
Layout for MS-25FS:
1.0 Overview
The MS-25FS Fully Automatic Three-Knife Trimmer is engineered to efficiently trim the three edges of books with rough or uncut sides. After the book block is aligned, it is clamped by a servo-controlled pusher carriage and automatically transported to the cutting station, where all three sides are precisely trimmed and then ejected. The system is primarily designed for perfect-bound books.
The MS-25FS is equipped with a full suite of automation features, including pneumatic book clamping and pressing, servo-driven mechanisms for book feeding, front knife, side knives, left alignment stopper, book alignment, and main drive - all integrated into a compact and robust knife platform.
The independent infeed channel features a dedicated belt conveyor with automatic start/stop functionality. To further enhance product quality, anti-scratch roller balls have been added to the feeding path to reduce potential damage to the bottom edges of books. With its high cutting accuracy, rapid adjustment capability, and user-oriented design, the MS-25FS is an ideal finishing solution for commercial and high-end printing environments.
1.1 Working Process (same as MS-25F)
After the machine is powered on and initialized, the book feeding mechanism delivers a book to the pusher carriage. The carriage clamps the book and transports it to the cutting station. At this point, the pneumatic pressing system securely holds the book in place. The carriage then releases the book and quickly returns to the home position, ready for the next cycle.
The side knives first trim both edges simultaneously, followed by the front knife, which cuts the leading edge. After the trimming is completed, the pressing system releases the book. The finished book is then pushed by the second feed mechanism onto the delivery conveyor, completing one full trimming cycle.
1.2 Book Size Adjustment
a. Input the dimensions for the left and right side knives based on the book trimming length in the computer.
b. Input the dimension for the front knife based on the book trimming width in the computer.
c. Manually adjust the left stopper size based on the book trimming length.
d. Manually adjust the book alignment brush size based on the book trimming width.
1.3 Book Pressing Device
The book pressing device is pneumatic and requires no adjustment of stroke or pressure, making it easy for customers to operate.
1.4 Book Pusher Carriage
The book pusher carriage uses pneumatic clamping (no adjustment needed for thicknesses up to 30mm) and servo-driven book feeding. This ensures easy operation and high positioning accuracy.
Packaging & Shipping
1)Normal package is Strong Export Wooden box(or Three-plywood box) with stretch film.
2) Customized Packing
Our service
You can expect satisfactory customer service with long tradition. We are highly devoted to the most optimal solid and liquid separation solutions to meet your specific needs. We have the effective service system to ensure professional and flexible management of any affairs.
1.Pre-sales technical consultation
2.Model selection
3.Machine guidance
4.Operation & maintenance training
5.Maintenance service
6.Quick supply of spare parts
7.Customer satisfaction track
FAQ
Q1: Are you a manufacturer ?
A1: Manufacturer, and we focus on the development and production of three-knife trimmer for more than 10 years
Q2:Can your machine be customized?
A2: Of course, OEM & ODM both are available.
Q3: How about your package?
A3: Our machines are well wrapped by plastic film to be water proof first. If by FCL(full container loading) we might use the plywood box.
Q4:How do you ship the finished products?
A4:By Sea. By railway.
Q5:What's the delivery time?
A5:Within 30-45 days after get the deposit. Depends on different machines.
Q6: What is your after sale service?
A6: Any questions will be responded within 24 hours by email, call or Whatsapp/Wechat. In addition, we have professional engineer available for overseas service... Q7: How about your quality control? A7: Our professional QC wil check the quality during the production and do 100% quality test before shipment.
Q8:Does it easy to operate and what can ido if it doesn't work?
A8: First, our machine is stable and easy to operate by one man. What you do is just learn some basic thing like loading the jumbo roll paper, start the machine and cutting the paper. And we will sent you manual and video.we suggest you to come to visit our factory to learn more thing by yourself , and if there is something goes wrong,you can call us video-chat email us. And we will give solutions within 36 hrs.
Q9:Guarantee?
A9: There is 1 year guarantee of each Inmai machinery brand Machines since customer got the machine. Within one year, the damaged spare parts(not including blades and cutting sticks) can be changed for free, and we provide life time technology support on line.




