Backbone Skiver

Eliminate "Dog Ears" with this Bolt-on upgrade.  Skiver addresses the area of thicker square-back books going though the side knives of the HT-trimmer. Our system has a course adjust and a fine adjust that can accurately position the blade to the book. The dual use blade, ramps to the book and registers itself up to 1/8" while cutting the backbone. Blades can be rotated to double up on life.

Bedplate mounted infeed guides

Replaces the top rail mounted infeed guides. Our hard annodized aluminum guides feature a wide mouth with a tapered guide blade to eliminate tape. These guides mount and adjust directly to the bead plates via large hand knobs.

Chainless infeed drive

Drives the infeed seprately from the trimmer. Uses a direct belt drive from the stitcher (in Saddle systems or the line shaft drive in perfect bind systems). Eliminates the drive chain from the trimmer's main crank to the infeed. Available on all HT trimmers

Chip Gate cross bar hold-down

Eliminates the crossbar bolted on the chipgate. Our crossbar is mounted firmly to the infeed, releaving the chipgate from the extra moving mass. Based on the HT-151, our cross bar is positioned near the front clamp and outfitted with flaps and teflon guides to keep the book down during the critical infeed lug to pusher finger tranfer, and forces the book under the clamp. Extra mounting holes to bolt on anything you can dream up to further aid in jam detection, and prevention.

Chip Gate Upgrade

(Bolt-on upgrade) Upgrades the chip gate carrier assembly where V-rollers are used. New system rides on horizontal linear shafts through oiless, self-aligning bearings. Results in a much more stout chip gate, and fewer parts to wear.

Available in ~HT-15V, ~HT-18, ~HT-20, ~HT-151

Front Clamp Upgrade

Replaces the hideous front clamp multi-linkage system in the HT-15 trimmer to a single link direct connection from the clamp to the lower camshaft. This greatly reduces clamp slop, allows the clamp to raise higher resulting in fewer knife jams, eliminates the chip gate cams, and greatly enhances performance. The Chip gate upgrade is INCLUDED with this front clamp upgrade.

Heavy Duty Jogger

(Bolt-on Upgrade) This upgrades the HT trimmer's original flimsy jogger to a more robust, heavy duty jogger. While the plate and contact spring is the same (what the book feels) the guiding and actuating mechanism is greatly improved. Jogger is now simpler, more rugged, and operates on linear bushings. Actuator arm is fully supported on two ends via a yoke, resulting in a firm, square, operation that will far outlast the original jogger. Remember the jogger plays a critical roll in the squareness of the book.

HT Anti Surge Infeed

Eliminates the infeed chain surging that plagues HT trimmers. Gives the book a smooth transition from the infeed chain lug to the pusher lug resulting in better trim squareness and fewer front knife jams. Available in all HT trimmers

HT Trimmer Guard

Gives the operator excellent access to the trimmer without the restrictions of older guards. Effortlessly open anywhere with powered lift assist. Works with taller operators and offers better visibility and noise reduction. Front and side knife housings can be lifted off without removing the guard support.

Reverse Jogger

Reverse Jogger based on our Heavy Duty Jogger. Available on all HT trimmers

Selective Jogger

Allows jogger to jog two (or more) different size books, or one book with two different cut-off sized signatures. Operator pre-sets the second book jogged setting (say, 3/16" wider for a certain selective sig) and the jogger will selectively jog to the proper dimension for the proper book. Selective Joggers are offered as stand alone where the user handles the control, or as closed loop where the jogger measures the book on the saddle and then automaticly responds when the book gets to the trimmer.

Selective Transporter

Allows trimmer to transport books with 100% page swings with user definable pressure to the book in key areas. Zero make-ready. Tooless. Available in all HT trimmers.

Side Knife Roller Clamp

Addresses the slipping and wrinkling problem associated with the original side knife clamps. Our clamps deal with the slightly disagreeing speed curves between the side knives and the lower transport belt be overcome by allowing the book to slide under our rolling clamp. They only exert downward pressure and hold the book side to side. They allow the transport to fully control book speed in relationship to the knives. The Rolling Clamp swaps in and out via 2 bolts on top of the knife housing.