K8 Perfection Combi Buckle/Knife Folder


The K8 Perfection series of combi-folders from MBO are capable of production speeds up to 230 m/min.   A common 25″ x 38″ USA sheet would fold up to 13,930 sph!  This represents a substantial increase in production output over nearly any vintage folding machine in use today.  The K8 series machines are feature rich with enhancements to help the machine run fast, stay running longer, and help the operator clear paper after the inevitable jam.  With a full buckle plate section in the parallel unit and crossfold variations of the S-KTL and S-KTZ, fold patterns can match nearly any requirement.  To achieve its high ROI, the machine tackles all 4 channels of production operation:  1. Fast Makeready,  2. High Speed,  3. High Uptime,  4. Low Labor requirement.  The ROI impacts  the press room also being able to maximize their press usage, and in the bindery being able to plan for product sooner.  Jobs can come in and out of the door faster than ever before.  With a maximum production speeds up to 13,930 sph this folder series can outrun most vintage offset presses on the market today and closes the gap on new presses also.


  • Enhanced 230 m/m (9,055 ipm) folder running speed
  • Maximum configuration options for a combi folder
  • “Z” configuration option in the last crossfold to make standard USA U-U-D signature folds
  • Pallet style or continuous style feeding for customized application

Standard Features and Benefits:

  • MBO’s advanced M1 control system and graphic HMI for ease of use
  • R800 Dualfeed continuous feeder standard for versatile long run applications
  • Vivas (Double-Vacubelt and Vacutable) for constant sheet pull and best registration
  • Ultrasonic double sheet control in the feeder/ alignment table for additional machine security
  • Anti-static lattice alignment table for consistent sheet control during registration
  • MBO’s exclusive, low maintenance, silent belt drive for low cost of operation and high quality
  • Virotec fold rollers for the ultimate paper grip at the lightest pressure possible
  • Slitter shaft cassette in the parallel fold for fast makeready and kit style tooling changes
  • Wide open knife folding area access at the crossfold for operator access at a moments notice
  • Ejection device at the head stop of the first cross fold for bad sheets to avoid nuisance and time consuming shutdowns and achieving more uptime
  • Retractable knife folding area at the third fold knife area for fast, full operator access
  • 4 or 6 NIRO style non-corroding buckle plates in the parallel fold unit, first fold
  • SKTL, SKTLT, SKTZ knife fold configurations for customized performance

Optional Features:

  • FP800/120 palletized feeder with Vaculift III feeder head for superior paper feed control and high cycle rates
  • Extended pallet stack height to 120cm (47.2″) for additional paper supply for continuous run time
  • Pre-slitter shaft at entrance to parallel fold buckle plates for additional tooling like scores and perfs
  • Gatefold plate in the parallel unit for enhanced folding capability for two fold and three fold gates
  • DATAMANAGER 4.0 connection to the K8 series M1 controls for data gathering and machine preset data
  • M1 controls advanced automation of buckle plates, fold rollers, and knife unit components
  • Ultrasonic double sheet control for additional protection of misfeeds or doubles
  • Edge trim,  center bleed trim, score tooling and perforation tooling
  • Waste sheet ejection at the crossfold knife stop to remove bad sheets with out stopping the machine
  • The K8 series can interface to many automated deliveries, and even robots, to allow the high running speeds without operator fatigue
  • MBO Combi-Plate II that combines the sheet stop with the deflector bar which eliminates the need to remove the plate at makeready