Site Search


Feature Item

Bruks 820 CM Chipper
Code: 2184

BRUKS stationary drum chippers are processing different kinds of input materials, like logs, slabs, sawmill wastes, butt ends, veneer wastes and other industrial wood wastes in all wood industry segments.


Name: Geoff Strang

Ph: +64 9 276 2402
Cell: +64 274 304 981
Contact Us

Optimisation | LHG with DataFusion™

Code: NM-OP-05-ELHGwithDataFusion
Category:  Sawmilling  >  New Equipment  >  Planermills  >  Optimisation

The Linear High Grader with DataFusion offers a true technical solution in the quest for fully automated grading. It integrates various complementary technologies to yield a highly accurate lumber grading system.

Modular Design Benefits

The modular design of the Linear High Grader enables this unique grading optimiser to grow step-by-step to meet your requirements or expand your mill’s capabilities.  Starting with the base model (geometric) you can expand your system to meet your personnel training, budget planning and product marketing requirements.

The LHG frame is designed to be compact yet accessible, and once installed it will receive additional modules without structural modifications and without interruption to production.

1.     Base Model (Geometric)

The base unit precisely determines all geometric features of a board including size, wane, skip, holes, crook, bow and twist.  This allows graders to focus on the visual defects longer, improving the quality of their decision and greatly reducing grader fatigue.  

The LHG evaluates the board's geometric characteristics and its grade solution is sprayed on the top of the board.  The board is tracked through the system using an ID that is printed on the bottom of the board as it exits the LHG.  The graders can agree with or downgrade the solution based on their visual data.  They can enter lumber line and non-lumber line grades and trims, plus choose an optional middle saw to aid in cut-in-two evaluation.  The optimiser determines the optimal grade and trim decision based on board profile data gathered by the scanner, the grader’s inputs, and product set-up values entered by mill personnel.

2.     MSR/MEL Module

Enhance the LHG’s abilities by packaging the pioneering x-ray technology from the proven X-Ray Lumber Gauge system into the base unit.  This feature allows the HHG to predict strength and moisture content, enabling the mill to market high value MSR/MEL lumber.

3.     E-Valuator Module

E-Valuator is the enhanced MSR module.  This module uses the non-contact deflection measurement and the density data to produce highly correlated MOE predictions.  Additionally this module can use the 4 face multi-spectral scanners to add grain angle and moisture data collected down the entire length of the piece, to further enhance the stiffness prediction algorithms.  This provides a greater yield compared with the other single technology systems available today.  This module has been operating since November 2005, consistently outperforming the HCLT every month in bin yields.

4.     Visual Defect Module

The Visual Defect Module combines 4-face, multi-spectral vision information with density data from the x-ray subsystem.  Through DataFusion, the information is evaluated to extract the defect information specified per the mill’s product parameters.  Included with the Visual Defect Module, users are automatically enrolled in one year of our Automated Grading Program.

This module is based on years of proven, patented x-ray-based grading technology used in other Newnes-McGehee optimisation products, a technology that we pioneered with industry partners and have perfected over the past decade.  This technology is operating in full production in a number of mills, and is available for all softwood species types.  Depending on species and the mill’s product profile, the Visual Defect Module will accurately grade for:

·         Knots (sound / unsound / bark encased)

·         Stain (blue stain, heart stain)

·         Splits and shake

·         Cambium / shallow face wane, steep edge wane

·         Planed bark as wane

·         Decay (rot w / voids, white spec, etc.)

·         Pith location down the entire length of the piece

With automated grading software enabled and utilizing the DataFusion approach, the LHG provides consistent biological defect recognition capability, offering the industry a truly automated grading solution.




PDF: NM-OP-05-ELHGwithDataFusiona

Enquire Today

Name  *
Company *
Phone *
Email  *
Address  *
Product of Interest 
Comments  *
Please enter the verification code in the image above *