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LOG BANDSAW TECHNOLOGY

LOG BANDSAW TECHNOLOGY
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LOG BANDSAW TECHNOLOGY

Product catalog summary
Overview of Log Bandsaw Technology
The EWD Log Bandsaw Technology offers unparalleled flexibility in converting round logs into various products. Initially used for large diameter and hardwood logs, it is now economically viable for universal applications due to automation, dynamic electric drives, precise servo-setworks, and modern scanning and optimization processes.

Slanted Design Advantages
The 17° slanted design enhances efficiency by speeding up log loading, improving visibility of the sawn face, and facilitating gentle and safe transfer of lumber. This setup allows for easier further processing and supports a high degree of automation, enabling operation by a single operator.

Log Carriage EW2 Features
The EW2 carriage is robust, with shock-resistant steel construction and precision machined supports. It features independent servo-hydraulic positioning, hydraulic clamping, and customizable log turners. The carriage drive is powered by a dynamic electric system with optional energy recovery.

Bandmills Modul EBB
The bandmill wheels are made from high-quality spheroid graphite iron, ensuring durability. The saw strain system offers fast reaction times and maintains constant strain, enhancing sawing accuracy. The Flying Bandsaw Technology (FBS) uses intelligent magnets for precise blade tracking, increasing production and recovery.

eWood Optimization Software
eWood provides a comprehensive interface for EWD sawlines, offering features like real-time sawline display, log scanning, product optimization, and production reporting. It supports efficient operation with an intuitive user interface and ergonomic controls.

Technical Data and Productivity
The document provides detailed technical specifications for various components like the EW2, PF19, and EBB, including log diameter, carriage speed, and drive power. Productivity comparisons highlight the efficiency of different bandmill configurations.

Example Configurations
Several example setups are provided, showcasing combinations of slanted log bandsaw mills with various systems like edger/gang optimized systems and band resaw systems, tailored for different sawing heights and log lengths.
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Catalog excerpts

LOG BANDSAW TECHNOLOGY-2

LOG BANDSAW TECHNOLOGY slanted 17° LOG BANDSAW TECHNOLOGY faster – more gentle - easier more flexibility more value yield less operators No other sawing process offers the flexibility and individual possibilities to convert round logs into many different products as the Log Bandsaw Technology does. The 17° slanted bandsaw headrig and carriage gain more and more acceptance. Traditionally the log bandsaw was used for large diameter logs and especially for hardwood logs. The advantages of the slanted design are enormous: • The loading of the logs onto the carriage is significantly faster due to...

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LOG BANDSAW TECHNOLOGY-3

The headblocks The headblocks are made in extra heavy, shock-resistant welded steel construction and are moved on precision machined block supports. All lumber supports are hard-chrome plated and exchangeable. All headblocks have independent positioning by means of servo-hydraulic setworks with very high setting speeds and can therefore adjust to every log shape. The clamping is done hydraulically. The applied pressure can be adjusted stepless by remote control from the operator panel to suit the sawing requirements. The dogs can be adjusted independently from the headblocks. This function allows adjusting...

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LOG BANDSAW TECHNOLOGY-4

The bandmill wheels Due to the high stresses, both wheels are made from high quality spheroid graphite iron. The surface hardness of this material allows years of operation without needs to regrind the wheels. The design of the wheels has been optimized by FiniteElements computer calculations. The bottom wheel with it‘s considerably higher momentum always pulls the band through the cut. The saw strain system The sawing accuracy of a bandsaw depends heavily on the bandsaw strain system. The EWD strain system offers a very fast reaction time and instantaneous shock absorption. One short stroke,...

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LOG BANDSAW TECHNOLOGY-5

Log Bandsaw Controls/Operation eWood is a comprehensive optimization and user interface software from EWD. All modern EWD sawlines and machines share the same interface application software. The interface man-machine offers an intuitive and consistent user concept, allowing effective use of the functions after just a short training period. Controls and comfort of operation • Industrial type PC, operator terminal and color monitor • Windows operator interface with menu-driven controls • Permanent display of all important values and parameters • Extensive display of operation messages in plain language,...

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■ LOG BANDSAW TECHNOLOGY Technical data EW2, PF19, EBB HLOG BANDSAW TECHNOLOGY Productivity comparison TECHNICAL DATA EW2 Productivity comparison of the log bandmill versions under identical conditions. Dog opening vertical mm Track width mm Carriage speed max. m/min Carriage drive power (system) kW Slabber head diameter No. of main knives Chipping depth max. Chipping height above log support max. Set distance including park position Feed speed Drive motor size Machine weight with drive motor (132 kW) Wheel diameter Wheel face width Drive motor size Saw strain max. Saw blade speed...

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LOG BANDSAW TECHNOLOGY-7

• Log bandsaw mill 17° slanted with EW2, PF19, EBB1800 for log length up to 6 m. • Combined with a combination edger/gang optimized system CombiTE - BNK with 6 moveable saw heads plus fix mounted saw quills for sawing heights of 18 - 225 mm.

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LOG BANDSAW TECHNOLOGY-8

Log bandsaw mill Example 2 • Log bandsaw mill 17° slanted with EW2, PF19, EBB1800 for log length up to 6 m. • Combined with a combination reducing, profiling, edger/gang optimized system CombiTE-PF19 chipper canter, profiling unit FR15H. BNK with 6 moveable saw heads plus fix mounted saw quills for sawing heights of 22 to 225 mm.

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LOG BANDSAW TECHNOLOGY-9

• Log bandsaw mill 17° slanted with EW2, EBB1800 for log length up to 6 m. • Combined with a band resaw system EBT1800 and an edger/rip system DK90. lllllll www.ewd.de

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LOG BANDSAW TECHNOLOGY-10

Log bandsaw mill Example 4 • Log bandsaw mill 17° slanted with EW2, PF19, EBB1800 for log length up to 6 m. • Combined with a combination edger/gang opti mized system Combimes-DK90 with 4 moveable saw heads plus fix-mounted saw quills for sawing heights from 17-160 mm and a double arbor circular cant resaw NKU160 for 160 mm sawing height with fix mounted saws.

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LOG BANDSAW TECHNOLOGY-11

EWD Altotting - Head quarter Esterer WD GmbH Estererstrasse 12 84503 Altotting, Germany phone: +49 86 71 - 5 03 - 0 e-mail: [email protected] EWD Reutlingen - Branch office Esterer WD GmbH Taleswiesenstrasse 7 72770 Reutlingen, Germany phone: +49 71 21 - 56 65 - 0 e-mail: [email protected] Due to constant product improvements or developments the illustrations and specifications contained in this brochure are subject to change without notice.

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.