Product Description
Automatic Three Sides Children Book Cutting Machine 3 Knife Book Trimmer Paper Book Trimming Machine From China
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.
MS-25FS Fully Automatic Three-Knife Trimmer
High-Precision Three-Side Cutting for Books and Print Products
The MS-25FS is a fully automatic three-knife trimmer (also known as a three-knife book cutter or three-side trimmer) designed for efficient and accurate trimming of softcover books, manuals, magazines, and more. This professional-grade three-knife cutting machine can operate independently or be connected in-line with a perfect binding system, making it ideal for small to medium-sized print and publishing operations.
The MS-25FS is a fully automatic three-knife trimmer designed for both standalone operation and seamless integration with perfect binding lines. Its intuitive design ensures easy maintenance, superior reliability, and exceptional performance, making it the ideal choice for small to medium-sized book manufacturers and commercial print operations.
Versatile Applications
The MS-25FS three-knife trimmer is ideal for:
- Post-binding finishing for perfect-bound books
- Trimming softcover publications, catalogs, and instructional manuals
- On-demand and short-run digital book production
- Commercial printers handling varied formats and thicknesses
Whether trimming thousands of books a day or producing high-quality short runs, this three-knife book trimmer ensures consistent, professional results.
Key Features & Benefits
- True Three-Knife Cutting System
Designed for three-side trimming (head, foot, and face), the MS-25FS delivers clean, sharp edges with every cut. The integrated servo-controlled knife drives ensure smooth, synchronized motion for precision across all three blades.
- All-in-One Knife Platform
The compact, integrated three-knife platform reduces mechanical complexity and boosts reliability. Fewer moving parts mean less downtime and easier maintenance.
- Pneumatic Book Pressing & Clamping
Secure and accurate trimming is achieved through powerful pneumatic systems that keep the book block in place during the cutting cycle-essential for high-speed, high-precision operations.
- Fast Setup, Quick Changeovers
The MS-25FS supports tool-free adjustments for different book sizes and thicknesses. Servo-driven controls make switching formats fast and efficient, perfect for workflows with frequent job changes.
- Superior Book Quality Protection
With optimized book alignment and cutting control, the risk of cover damage or misalignment is greatly reduced-delivering a clean, professional finish on every trimmed book.
- User-Friendly Control System
A large, intuitive touchscreen interface makes operation simple. Operators can quickly adjust settings, monitor machine status, and reduce setup time-ideal for fast-paced production environments.
- Durable, Low-Maintenance Design
Built for long-term use, this three-knife cutting system features high-quality components, easy-access maintenance points, and stable performance under continuous operation.
Why the MS-25FS Three-Knife Trimmer Stands Out
- Professional-grade three-knife book trimmer for consistent and accurate finishing
- Perfect for both three-knife standalone trimming and inline finishing lines
- Enhanced with servo technology for smooth and stable three-knife operation
- Supports a wide range of book formats and sizes with fast, flexible adjustments
- Reduces wear and mechanical issues common in traditional three-side trimmers
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 |
|
1.0 Overview
The MS-25FS Fully Automatic Three-Knife Trimmer is designed for trimming the three edges of books that have a certain thickness and rough edges. After aligning the books, they are fed into the machine, clamped by the book pusher, and automatically moved to the cutting station where the three sides are trimmed and then ejected (primarily for perfect-bound books). The machine is equipped with various advanced functions, including pneumatic book clamping, pneumatic book pressing, servo-driven book feeding, front knife servo, side knife servo, left stopper servo, book alignment servo, main drive servo, and an integrated knife platform.
The book feeding channel is independently equipped with a feeding belt and an automatic start/stop function. Additionally, anti-scratch ball bearings are added to the feeding channel to minimize scratches on the bottom of some books, ensuring high cutting accuracy and fast adjustment speed, among other advantages. This makes the MS-25FS an ideal solution for commercial and high-end printing users.
1.1 Working Process (same as MS-25F)
Once the power is turned on, the book feeding mechanism sends the book to the book pusher, where it is clamped and moved to the cutting station. At this point, the book pressing device quickly presses the book down, and the book pusher releases the book and returns to its starting position for the next cycle. Meanwhile, the two side knives trim the two side edges, and the front knife trims the front edge. Once the front knife finishes its cut, it returns, and the book pressing device releases the book. The book is then pushed out by the second feeding mechanism onto the book delivery conveyor and ejected, completing one work cycle.
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.



