Reducing Technology - EWD

1 Reducing Technology PF19. QuadroLine DWK. VNK. FR12. NKU. FVHTK. TM. Reducing Technology Efficiency and Recovery with eWood- Technology For decades EWD Reducing Technology stands for custom made sawline solutions for medium to large size sawmills. 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. State of the art scanning and sensor Technology Professional optimization and operations software Powerful PLC control systems are the important factors besides the solid and time-proven machine design for the high efficiency and recovery of EWD Reducing Lines.

2 Reducing Technology is a sawmill industry term The Reducing Technology is able to handle a very describing a process using chipper canter units to large log diameter range from 10 cm to 75 cm. chip off the round slabs of the log and cant before The log length range varies from a 1,8 m log up to sawing machines cut off the side boards from the 14 m long logs. center product cant. The side boards are then sent to separate optimizing edger systems. EWD builds custom made solutions for the very individual needs of the international sawmill industry. EWD uses as sawing machines bandsaws as well The Reducing Technology is used for production as circular saw machines. capacities of 20 to 200 m log intake per hour. 2 3. PF19 Chipper head Universal chipper canter Straight knives / Spiral knives for medium to large Reducing The chipper canter PF 19 is used in Circular saw or The chipper canter PF 19 can be fitted with either and Profiling lines Reducer Bandsaw lines and also in Profiling lines straight knives, spiral knives or stepped knives heads.

3 For chipping of two parallel faces on logs or cants. The width adjustment of the chipper head supports The different head types are matched by the num- is done by servo-hydraulic setworks. ber of tools installed to the speed range desired. All heads are fitted with either pre- or post sawing circular saw rings, depending on the purpose. Technical data PF19 The produced chips meet the high quality require- Chipper head diameter ments of the pulp industry. Straight knives chipper head mm 1240. Spiral knives chipper head mm 1260 No. of main knives (straight knives head) pcs. 3, 4, 6. The chipper head revolutions are controlled by No. of spirals (spiral knives head) pcs. 3, 4, 5. frequency converter as a function of feed speed Chipping depth per head and desired chip lengths.

4 Straight knives chipper head mm 190. Spiral knives chipper head mm 180. Chipping height above chain bed max. Straight knives chipper head, pre-sawing mm 612. Straight knives chipper head, post-sawing mm 505. Spiral knives chipper head, pre-sawing mm 550. Distance between the chipper heads mm 60 700. Opening side for tool change mm 900. Feed speed m/min. 20 200. Drive power kW 2x75 2x250 (@ 1500 rpm). Machine weight with drive motors t 13,0. 4 5. QUadroLine QUadroLine Reducing Bandsaw line Reducing Bandsaw line EWD Bandsaw Technology stands The demanding job of the saw filing of bandsaw The reducer bandsaw allows to process large sawing for high recovery, flexibility and blades is now done automatically by a new gener- heights with a minimum saw kerf. The positioning high performance.

5 Ation of stellite-tipping, grinding-, levelling and of the saw lines and therefore the production of tensioning machines with highest reliability. any lumber size required is basically unlimited. New bandsaw steel qualities allow longer hours of Variable speed drives for the sawing speed allow operation with even thinner blade thickness. the adjustment of the sawing process to fit the different cutting conditions. With the modular design of the EWD Bandsaw FBS Flying Bandsaw Technology every conceivable task in today's saw- active saw guide system mill industry can be solved. with magnets The combination of bandsaw, circular saw and for: canter Technology is almost without limits. higher saw strain higher sawing accuracy With feed speeds in excess of 120 m/min, the re- higher feed speeds ducer bandsaw Technology not only satisfies highest longer operating hours recovery requirements, but also the need for high throughput.

6 The FBS Technology achieves excellent production results in summer and winter operation. 6 7. TECHNICAL DATA TECHNICAL DATA. Modul Bandmills EBT 1400, 1600, 1800. 360 1900 500 500 2200 1000. 5800. 2900 2900. CL Round guide CL Round guide 2800. 750. 3250. EBT 1800. 720 3560 720. 5000 7000. TECHNICAL DATA OF Modul - BANDMILLS. Type EBT 1400 EBT 1600 EBT 1800. Wheel diameter mm 1400 1600 1800. Wheel face width mm 160/200 190/230 190/210/230. Saw blade width mm 180/206 206/250 206/230/250. Saw blade thickness max. mm 1,47 1,65 1,83. Saw blade strain max. N/mm2 200 200 200. Drive motor size kW 75-90 75-110 90-132. 8 9. LOG AND CANT RESAW SAW POSITIONING DISTANCES. DWK (in mm). stroke 450. 350. 160 100 150. Flexible double arbor circular saw for The flexible double arbor circular saw unit DWK 700.

7 Primary and secondary breakdown is used as primary-, secondary break down or with excess height cutters and hyd- combination machine in medium to large sawmills. raulically height-adjustable saw arbors. In total 6 pairs of saw heads can be positioned individually with very precise servo-hydraulic setworks. For a uniform distribution of the actual sawing heights on top and bottom saw blades, the saw arbors are automatically positioned in height. For the use as primary break down machine the DWK. 700 is fitted with excess height cutters, which are adjusted in height together with the saw arbors. This tool arrange- ment enables a very efficient sawing operation of even large diameter logs. 208 C B A B C 208. Machine opening outfeed side max. 800 mm 780 A = 18-650 mm C = 18-168 mm Saw arbor height 160.

8 B = 18-208 mm A max. = 1600 mm in tool change position adjustment distances Application examples DWK 700. Primary break down Secondary break down Cant and profile sawing 625 fix 380. 690. 370. height adjustment Hub H henverstellung 150. 360. 210. Stroke 205. 308 640 oben 640 top und unten and bottom 10 11. LOG AND CANT RESAW DWK / VNK. DWK / VNK. Flexible double arbor circular saw TECHNICAL DATA DWK 700. DWK with excess height cutters Log diameter (described in a tube) max. mm 700 (800). Log/cant length min. m 2,5. Sawing height primary breakdown with excess height cutters mm 380. Sawing height secondary break down mm 48 - 370. Saw sleeve length fix mounted saws per side mm 208. Saw sleeve diameter mm 205 Machine opening outfeed max. mm 800. Saw blade diameter top/bottom arbor mm 640.

9 Feed speed max. m/min 140. Drive motor size kW 2x132 - 2x250 (at 1500 rpm). Machine weight with drive motors (2x200 kW) t 25. Excess height cutters head diameter mm 308. head width mm 160. drive motors kW 4x30 - 4x37 (at 3000 rpm). High production reducer saw line with double arbor circular saw DWK. Flexible double arbor circular saw TECHNICAL DATA VNK 300 / VNK 360. VNK without excess height cutters Sawing height mm 75 310 (*75 360). Log/cant length min. m 2,4. Saw sleeve length fix mounted saws per side mm 115. Saw sleeve diameter mm 240 Machine opening outfeed max. mm 700. Saw blade diameter top/bottom arbor mm 610 (*655). Feed speed max. m/min 140. Drive motor size kW 4x132-4x200 (at 1500 rpm). Machine weight with drive motors (4x200 kW) t 20. *VNK 360.

10 Medium production reducer saw line with double arbor circular saw DWK. 12 13. RESAW FR12 RESAW NKU 150. Double arbor circular resaw with fix-mounted saw blades Double arbor circular resaw with fix-mounted saw blades The double arbor circular resaws FR12 and NKU 150. are each fitted with two individually height adjustable saw arbors with hydraulic lift/lowering. TECHNICAL DATA NKU 150. Sawing height mm 40 160. Passage height max. mm 180. Cant length min. m 1,0 (0,8). Cant width max. mm 620. Useable saw sleeve length mm 615. Machine opening infeed (with lumber guide bars) mm 625. Machine opening outfeed mm 900. Saw blade diameter top and bottom mm 390. Saw arbor diameter mm 110. Drive motor size kW 2x160 (at 3000 rpm). Feed speed max. m/min 100. TECHNICAL DATA FR12.