Technological process

Process flow

  1. Timber harvesting.
    Mechanized saw-log harvesting using felling machine ML-119A or manual felling by Husqvarna saws. Skidding of tree length logs using wheeled skidding machine ML-56 or chokerless skidding tractor TT-4M. Trimming-out using lopping machine LP-33. Loading of logs into log tracks KamAZ by timber loading fork LT-188.

  2. Timber transporting to the saw-mill in tracks.

  3. Logs reception.
    A log track offloading (of short log truck) is provided by caterpillar manipulator LT-72. Reception of saw-logs volume is carried out by inspectors using manual measuring devices. Then, one part of logs is to be accumulated, and another part is to be sorted.

  4. Saw-logs sorting.
    A log diameter gradation takes place on the grading line LT-86.. Depending on an order specification, logs of required dimension go to the saw mill shop.

  5. Lumbering (manufacturing of edged sawn timber). Sawing technology consists of the following successive steps:

    • Saw logs debarking using OK-63 machine;
    • logs processing into cants on the “ARTIGLIO” band saw machine CT-130;
    • Cants sawing into boards on the multifunction saw Multibi-18B by “STORTI” purpose;
    • An uncut board processing with an edge-trimming machine;
    • Slab-wood is processed into unedged timber using the CT-80 (ARTIGLIO) machine. Then, timber returned to the edge-trimming machine. Residual wood proceeds into wood chips through a chipping machine. Chipwood is realized to the Ust-Ilimsk Forestry Complex. Chips from sawing process are used as fuel in the local boiler house to heat the dry kilns, shops, administrative and other buildings.

  6. Timber drying. Moist edged boards are laid out and loaded in dry kilns. For sawn-timber drying the convective dry kilns of the Western European trade-marks “NARDI” and “Muehlboeck Vanicheck” are used. The loading volume one kiln is 150 cbm. Drying process continues from 5 to 12 days depending on the wood species, timber sizes and required end moisture content (usually from 10 to 16%). This drying process is supplied by means of heat exchanger with hot water and ventilators, which provide hot air circulation inside the drying kilns.

  7. Gradation of docked sawn timbers is performed in compliance with Russian state standard GOST 26002–83 and 8486–86. A part of sawn-timber is graded for a delivery as semifinished product to the second shop, which is responsible for the production of planed sawn goods, and another part is to be sorted into bundles of finished sawn goods.

  8. Production packing and transporting of finished goods to the warehouse. Bundles of finished goods are stringed with an anticorrosive steel band using hand banding machines “Fromm”. Upper layer of board is separated from other boards with waterproof film; another way is to pack a bundle with film packaging material on the 5 sides. Then transport bundles are proceeded to the warehouse of finished goods.

  9. Planed sawn goods manufacturing. After sorting phase a part of KD sawn timber is transferred as a semiproduct to the shop, which is completely equipped with German machinery of “Michael Weinig AG” for manufacture of planed sawn goods, used in Japan housing (domestic named “mabashira”, “taruki” and “neda”), and profiled wood products.

    A. S4S square lumber production (Japanese name “taruki”, “neda”). Edged boards are planed at four sides on the multisaw machine Hydromat 23. Finished S4S square lumber are graded in accordance with technical requirements and packed in mini-parcels by hand tool Moska. Next, mini-parcels are conveyed to the accumulating pockets for further piling into transport bundles and packed with film that is marked with the logo “Ruslesprom”. The bundles are carried by fork electric truck DAEWOO to the finished product storage.

    B. Planed boards (Japanese name “mabashira”) and mouldings manufacture. Production of calibrated and profiled goods (mouldings) is done using Unimat machine, which produces planed board (“mabashira”) or mouldings. Finished products are trussed into mini-parcels, which further are piled into transport bundles and packed with a film. Ready bundles are marked and transported with electric lift truck to the finished product warehouse.

    C. Finger-joint planed boards (Japanese name “mabashira”) and mouldings manufacture. Edged boards are processed using Opticut 204 machine, where they are cut into wood modules (practically, defectless work pieces); residual wood is processed into wood chips through a chipping machine. These modules are figured cut using Ultra machine and finger-jointed with application of glue Klebit 303.0 and hardener (quality is under European standard DIN/EN204, hardness group D4). Then finger-jointed boards are planed using Unimat machine. Finished planed products are trussed into mini-parcels, which then form transport bundles. They are packed with a logo film, marked and transported to the finished product warehouse.

  10. Transporting to the railroad loading point. Transport bundles are carried by fork truck DAEWOO to the loading point, where they are loaded into railway cars using diesel-electric crane.