Other Three Knife Trimmers

Challenge CMT130TC
Standard Horizon HT-1000V
Standard Horizon HT-110
Standard Horizon HT-80
Standard Horizon HT-30C
data subject to change without notice
  • overview
  • specs
  • brochure
  • video

Challenge CMT330 Auto Set Up - Three Knife Trimmer (online configurator tool available here)

Short-run perfect binding has made great strides within our industry in recent years. Trimming duties have been carried out by traditional guillotines for many years, but this process is very time-consuming and less than ideal for the dynamic digital book publishers of today. The Challenge CMT330 three-knife trimmer brings cost-effective perfect-bound book trimming to your high-production digital book production facility.

The sturdy steel and cast-iron design of the CMT330 ensures years of trouble-free operation. Hydraulic clamping and cutting action provides strength to cut through up to 2” (50.8mm) thick books without hesitation. Standard features such as UHMW gib surfaces, composite bushings, and stepper motor technology require virtually zero maintenance. True three-knife trimming process provides consistent product quality. Simple knife change procedure cuts downtime dramatically.

The industry-exclusive modularity of the CMT330 provides added possibilities for future growth within your organization.

The CMT330 can be configured as a hand-feed off-line trimmer for cost-effective trimming. The optional high-capacity feeder permits up to 36” / 914 cm of books to be stacked and automatically fed into the trimmer. The optional vertical stacker allows up to 24” / 609 cm of books to be delivered. When these two items are combined, this near-line trimming solution permits the perfect binder operator to also feed and collect product from the CMT 330 solution. The CMT 330 can also be configured for true in-line trimming by substituting the book pile feeder with our infeed conveyor and cooling elevator. A variety of conveyors are available to interface your perfect binder with the CMT330.

The intuitive menu-driven controller allows variable mode data entry with up to 99 job storage. Swift size changes occur in approximately 20 seconds with no tools required! Machine self-diagnostics and error indication walk the operator through any difficulties. Third party control via serial communications allows integration of bar code readers/size change apparatus.

Proudly manufactured in the USA, the CMT330 provides consistent cut quality, durability, and industry-exclusive modularity that you have come to expect from Challenge products.


Minimum Book Size 4" x 6"
Maximum Book Size 9.5" x 12.5" / 241 mm x 317.5 mm
Maximum Book Thickness 2" / 50.8 mm
Minimum Trim 0.125" / 3.2 mm
Maximum Face Trim 5.5" / 140 mm
Speed Up to 400+ Books Per Hour
Memory 99 Book Jobs
Set-up Time for Book Size Change
15 Seconds


Overall Height 61" / 1549 mm
Overall Width* 34.5"* / 876 mm*
Overall Length 84" / 2134 mm
Net Weight (approximate)*
2500 lbs* / 1136 kg*
Shipping Weight (approximate)* 2800 lbs* / 1273 kg*

Electrical and Pneumatics

3 Phase, 60 Hz, AC
208/230 Volts, 25 Amps (service size 40 Amps)
U.L. Listed

Air Supply Requirements: 90 PSI, 5 CFM Unlubricated

Challenge reserves the right to make changes to any product or specification without notice and without incurring responsibility to existing units. *Width and weight based on the core 3-knife trimmer, not the feed in device or exit device.

Challenge CMT330 brochure pdf file

Download the brochure and call 877.460.1212 toll free to speak to a sales representative.