Produkty dla drewna (327)

Siempelkamp also has the appropriate concepts for stacking the cut and sanded products. The stacking procedure that's best for how the stack is to be used may be selected from the dierent stacking systems and adapted to the demands being made on the nished product by the customer. Siempelkamp's stacking stations provide solutions for all types of board. High uptime and capacity are the priority here. At the same time, they give customers full exibility in regard to formats and quality grading. The stacking solutions may be extended by additional options, such as protection board handling and stacking conveyors Features and functions Stacking of 1.1. Single boards 1.2. Board packages 1.3. All board thicknesses 1.4. Widths from 4 to 10 feet 1.5. Individual lengths Stacking sorted according to type and quality Exact denition of board number in stacks or stacking height Large adjustment ranges for all stops for greatest possible production exibility

Benets of accurate moisture control Moisture measurement is one of the most-important parameters for ecient panel board production. A moisture content in raw material that is too high results in a slow-down in production speed with an increased risk of causing blows, if raw material becomes too dry excess energy will be consumed. Also the risk of re and explosion in the dryer is greatly increased. If moisture is monitored at dierent locations within the production process, valuable information will exhibit for optimization of the process. Multi-wavelength infrared light is used which is targeted to, and reected by the material surface. A certain wavelength of infrared light is absorbed by water molecules, thus more or less weakened. The weakened signal is compared to the unweakened signal. The resulting values indicate the Visualization-PC Material collector for drop chute applications (e.g. after dryer) Measuring through glass window (e.g. silo, bin, screw conveyor) moisture content Technical Data Technology:Infrared Materials:Fibers, particles, OSB-strands Results:O.D. (oven dry) or ATRO Stand-o distance:150 – 400mm [6 - 16”] Repeatability:+/- 0.1% Accuracy: +/- 1.0% of chosen rang Options Protection against freezing

The boards to be coated are fed to the raw-board-handling section where they are separated to allow their surfaces to be cleaned. Features, function A forklift truck is used to place the board stacks on to a roller table from where roller conveyors or horizontal transfer carriages equipped with roller conveyors transport them to one of the two separating station's places. A suction carriage removes the top board from the stack and places it on a conveyor that takes it to the surface-cleaning machine. Advantages The two redundant stacking places allow the short-cycle press to be supplied without interruption. They make it possible to feed new stacks of boards without the need to shut the machine down

Classic glue-blending systems in blowlines reach their limits when special glue systems need to be applied to bres. It is therefore not possible to apply glues that respond sensitively to higher temperatures before the dryer. Chute glue-blending systems constitute the answer to this challenge. This type of glue-blending system is used, for example, in the insulation-material industry

The light-board package consists of a special cylinder conguration with additional double-acting cylinders. Its concept enables the production of especially light engineered boards still comfortably within precise and tight thickness tolerances. Since light boards can be produced at specic pressing forces below the hot platen weight, the upper hot platens must be lifted by double-acting cylinders. When the light-board option has been installed, there is an abundant number of double-acting cylinders distributed across the hot platens to prevent any hot platen bending, thus maintaining the requested board thickness. Features Additional dierential cylinders operating as double-acting cylinders Additional hydraulic control circuits to enable precise control of the dierential cylinders. Advantages

The first examples of which were built by CMC TEXPAN in the early 1990s.They are aimed at cleaning the material ow fed into the machine byremoving any possible contaminants, the density of which is higher than that of the processed wood chips, e.g. stones, sand, metals, rubber, coarser chipsetc.The principle of operation is based on densimetric separation chieved in a vibratory box. In addition to the vibration of the machine casing, the materialow is subjected to a strong, pulsating air ow, enhancing the separationeect and providing for further “dry leaning” of chips. Heavy contaminants (e.g. stones, glass, rubber and plastic) are removed from the material ow,discharged from the machine side and conveyed to further re-classication,while clean chips are discharged from the machine’s front end.

The knives of knife-ring akers have to be sharpened and re-set at regular intervals. This can be a very timeconsuming and personnel-intensive job. The quality and precision of these tasks depend strongly on the accuracy and dedication of the individual worker. With the sharpening and setting robot PZSE the knives can be sharpened and set automatically. Features, Function safety housing fully automatic process ow transport to and clamping of the knife ring to the carrier disc determining the wear of all parts automatic readjustment of all wear shoes and knives sharpening of all knives in a wet grinding process cleaning torque control of clamping bolts detection of possible damage to the threads Advantages automatic sharpening and setting process setting of the knives with high accuracy electronic control of tightening torque of the knife xing bolts automatic monitoring of the thread quality of the xing bolts preventative maintenance program thanks to PLC-controlled integrated

VENTAPP radial fans are used in wood-processing plants where air or loaded air is conveyed under increased pressure. They convey gases, bres, and particles; they are used for wetting, drying or ltering of media. In energy plants, in bre drying, for mat formers and dust extraction systems they form integral parts of Siempelkamp plants. Features Pressures beyond 20,000 Pa Temperatures up to 700 °C Impeller wheel diameters up to 3,150 mm Circumferential speed up to 200 m/s Gas-tight and pressure-resistant design ATEX Advantages High eciency Smooth operation Robust design Low caking, high wear resistance High dependability and operational safety Diverse accessories Maintenance and repair service Variants Drive type Casing positioning Size of all components Angular position Material Colour

The ContiTherm is the optimally suited for the production of wood-based insulation material, the wood bres being preferably resinated with PMDI or thermoplastic melts. A steam/air mix is conveyed through the bre mat. During this process, the steam condenses at the bres or particles, heating them up. At the same time the gap between the upper and the lower hot platens is precisely maintained. This is essential for the production low-density boards of up to 250 kg/m³ approx. which exhibit outstanding thermal insulating propertie The dew point of the steam/air mix - thus the mat temperature - can be precisely set by varying the steam content. T sections (seen in working direction). Depending on the application these sections are designed for a unidirectional o with hot platens heated by thermal oil. The width of the steam boxes in an MDF-plant can be extended by additional segments to optimise steam-air conve

The boards are cut o the endless mat in the saw section. The process becomes a discontinuous one that is characterised by cycle times from this point on. The saw section includes the board edge-trimming and saw units. The board is cut by saws that are positioned at right angles to the endless board and that cut straight proportionally to the feed of the press. It is possible to change the tools without interruption to the production process depending on the number of individual units. longitudinal edge trimming device 2 edge-trimming units – no production possible while tools are being changed 2 edge-trimming units with the option for retrotting additional units 4 edge-trimming units for interruption-free changing of the saw blades Bevelling of the endless board after trimming Multi-diagonalsaw Up to two saw beams each with two units, i.e. four saws maximum Number of saws depending on the feed and desired board length

Boards requiring good mechanical properties need the glue mix to be evenly metered and the glue to be applied in the best way possible to the particles or bres. Siempelkamp's integrated metering systems help create precise mixes and accurately meter glues and other chemic ow meters to achieve the best possible metering results. Each unit is completely pre-assembled and to a large exte design means that it is easy to add more metering stations for the glue mix. Features, function Metering systems for dierent quantities and components Program-controlled metering using ow meters Metering tanks for each component equipped with pressure-controlled level controls Innovative software Metering containers and stations are completely pre-assembled.

Various heater types available, eciency and robustness characterise directly heated drum dryers by Büttner. They are used for drying wood particles, strands, sugar beet pulp and all free-owing types of wood, biomasses and bulk solids Features Water evaporation capacity of up to 80 t/h depending on the product Direct heating system with multi-fuel burners in combustion chambers Direct heating system using ue gases from energy plants Direct heating system using waste gases from turbines or engines All combinations of these types of heaters are possible. A ash tube may be used for pre-drying and oversize separation of material that is quite moist. Material separation via cyclones or drop boxes Function The material to be dried is admitted through an air-tight rotary air lock into a rotating single-pass drum dryer. The dryer drum can be tted with specic internal ights to suit the material to be dried. This results in an increase in surface area and thus an increase in eciency

Papers and carrier boards are combined in the batch laying section. In the simplest of cases, a batch that is ready for pressing consists of a sheet of decorative paper as the base layer, a carrier board and a sheet of decorative paper as the top layer. It may in certain circumstances be necessary to use of several types of paper. Features, function Papers soaked in resin are supplied to the plant in sheets lying on pallets. A suction bar separates the papers from the stack and pulls them on to a laying conveyor. A suction carriage delivers the board made from wood-based material. The laying conveyor conveys the batch from laying station to laying station / conveys the assembled batch to the facility core. The batch is statically charged in order to secure the papers on the carrier board for continued transport. Advantages The individual layout of the batch layer is based on coordinated standard modules.

Using a ContiTherm preheater upstream of the ContiRoll® press increases the production output of a wood-processing plant signicantly. It is an additional component integrated into the forming line and serves to preheat the mat before it is transferred to the ContiRoll® infeed to just below the temperature at which the glue starts to cure. A steam-air mix is conveyed through the mat. During this process, the steam condenses at the bres or particles, heating them up. The preheating temperature can be set most accurately by varying the steam content of the mix. The machine is separate into two to four sections (seen in working direction). Depending on the application these sections are designed for a unidirectional or a bidrectional steam injection or equipped with hot platens heated by thermal oil. The width of the steam boxes in an MDF-plant can be extended by additional segments to optimise steam-air conveyance.

The line for tree-length logs is designed for the processing of whole logs with lengths of up to20 meters: With the log feed, debarker, washingsystem, dosing system all the way to the highlyecient disc chippers, the production of highquality chips is guaranteed Key featuresFeeding of the wood from the truck or storage areaLarge gantry or rotating cranes for loads of up to 30 metric tons of woodExtremely robust longitudinal chain conveyors or chip chutesLarge conveying cross-sections and laterally arranged chutesDrum debarkersChipper feeding onveyors for large throughputs Metal sensor and roller conveyor cleaning systemDisc chipperAdvantagesGentle de-barkingMinimal ne material content among chipsHigh safety against jamming of logs

Double stream mills are used to grind core layer akes or course material rejects from screening processes to ne surface layer akes. In the wood-based materials industry they are the ideal solution when it comes to the further renement of akes. The produced ne akes are used in surface layers for particleboard, for example, in the furniture industry. Surface layer mills are part of a reliable machine technology. In the renement process of akes, which were primarily produced with knife-ring akers type PZKR, these mills produce high-quality surface layer akes Features, Function material feed via vibrating chute heavy-particle and magnetic separator pneumatically supported transport of the ground material inside the machine size reduction between beater plates and grinding segments selectable grinding track geometry interchangeable screens with dierent mesh sizes

An equaliser ex mat former levels the formed mat thus reducing the weight tolerances considerably Features, function System comprising six equalising rollers Level adjustment Roller tipping to homogenise the forming level in transversal direction Advantages No need for bre recycling w Rendering pneumatic conve Excellent surface texture Consistent mat height Material savings

The large maturing store is for storing and maturing the boards. The fully automated system with aisle vehicle and accompanying satellites is responsible for the stack transport. The aisle vehicle moves the stack in one direction and the satellites assume the task of transporting them into the rack aisles. The size depends on the required storage capacity and on local circumstances. The aisle vehicles are responsible for transfer movements, the satellites pick the stacks up or move them into the individual aisles. Advantages Expandable by modules Options ‘First in - rst out’ strategy ‘First in – last out’ strategy

The mat former for MDF production inuences signicantly the output and the quality of the nal product. Its components ensure the material ow from the metering bin inlet, the bin discharge front onto the forming heads underneath up to the levelled bre mat on the forming line. MDF usually requires a homogeneous one-layer mat to be formed on the forming belt. To realise this we use a mechanical forming head (Siempelkamp StarFormer). Features, function Controlled material feed into the bre bin Chute equipped with bre decelerators to reduce the dropping speed of the bres Bin casing providing a buer time of up to 5 minutes Controlled bin bottom belt Discharge front with oset disc rollers Flow-optimised chute Mechanical StarFormer incl. level and angle adjustment

Fibre sifters are used for processing softwood and rubberwood bres. They serve to remove tramp material, glue clots or latex particles from the resinated and pre-dried bre ow. Only a meticulous preparation like that can ensure a homogeneous board surface without any stains. In addition, sifting is an eective protective measure for the steel belt in the subsequent pressing process. The sifter is fed from the top. Disintegrating rollers mounted in the feed chute loosen up and homogenise the bre ow. Air is introduced from the bottom. The calculated volume ensures that the acceptables, which are lighter, are conveyed upwards, while the heavier rejects drop downwards to be discharged via rotary air lock. The entire sifter and all its ducts and piping are calculated and optimised precisely to the bre ow. This enables the pressure losses to be minimised and the energy eciency of the sifter to be improved signicantly compared to other systems..

Siempelkamp's continuous saws are a tried-and-tested solution for plants with highest outputs. The saw throughput does not depend on the number of cuts and is therefore superior to other cutting solutions, particularly for large master boards. Continuous saws also permit in-line quality grading. This means that the combined sanding and saw line is able to deliver sorted stacks of nished boards from the master boards in a single stage of work. This allows investment and operating costs to be minimised. The cut-to-size saws may be combined in-line with a sanding machine or set up separately just as a cutting system Features and functions Continuous saws for longitudinal and horizontal cuts Scoring unit and main saw blade for top-quality edges Reliable guiding of the board using chains and/or rollers to ensure accurate cutting Trimming of the edges directly by the tool, no additional conveyors and follow-up work required

Following product changes or a surface defect detected by the monitoring equipment, the aected mat section has to be rejected and discharged in time before reaching the ContiRoll®-infeed. This is ensured by Siempelkamp’s reject mat system. It is an in-line element of the forming line. Thanks to its modular design, it can be adjusted to the product parameters, enabling reliable press protection and a quick and material ecient plant restart. Features Drive/reject mat unit including track support Reject mat hopper Integration in the belt drive station Motor-adjustable table including belt deection nose Motor-adjustable belt cleaning brush Advantages Distance-controlled activation for an optimised material discharge and minimised rejects volume Options Including disintegrating rollers Including dust ap Hydraulic reject mat drive Nose stroke 3000 mm or 4000 mm

A homogeneous compaction of the formed mat is indispensable because this is the only way to realise high production speeds and smooth mat transfer to the ContiRoll®. Adequate compaction is provided by the prepress suitable for the production of MDF from 1 to 42 mm. Features, function Two air evacuation zones, the angles and levels of which are adjustable 1.1. zone 1 with a long degassing section incl. a dust extraction system (optional) 1.2. zone 2, medium-pressure zone and degassing via pressure rollers High-pressure zone incl. pressure rollers and hydraulic position control Three circulating belts 1.1. upper air evacuation belt for the degassing zone incl. motorised belt tracking 1.2. perforated press belt (top strand) for the medium- and high pressure zones 1.3. press belt (lower strand) to relieve the circulating forming belt Belt cleaning systems incl

Siempelkamp has developed the energy-ecient drive system EcoDrive for the ContiRoll® main drives. This system meets tomorrow’s legal and standard demands on the energy eciency of drive systems already today. It comprises frequency converters, motor and gearbox - all well-tuned to one another. In addition to the energy eciency our R&D-work focussed on an improved precision and controllability of the entire drive system. The focus is on high belt speeds, precise r.p.m. for a synchronous operation of the steel belts, torques adjusted to the characteristic load line in connection with the hydraulic pressure/position control, good performance, good uptimes and ease of maintenance. This corresponds to the demand on a very high product quality and an on-demand energy consumption even in partial load operation. This new drive system is able to save more than 10 % of the electrical drive energy compared to traditional Solutions.

Drum chippers are used to process long and short logs, wood pieces, saw mill waste, veneer waste, residual wood, and other wood waste to high-quality chips. Depending on the size and design of the drum chipper, the machine can be adjusted to the type of wood to be processed and the desired chip quality. The most suitable chipper size is determined by the maximum trunk diameter to be processed and the desired production capacity. The desired chip length also inuences the performance of the chipper. Key features Adv Large draw-in rollers for process-reliable wood feed at constant speed Pivoting feed system for automatic adjustment to loading height Hydraulic ywheel drive for consistent contact pressure and the damping of impacts Robust, well-balanced rotor Large ywheel inertia to compensate for short-term peak loads Generously dimensioned V-belt drive Startup process via Pony-motor to reduce spikes in power supply during acceleration of the rotor

The EcoPulser by Siempelkamp uses a completely new almost wear-free, bladeless process to achieve an additional size reduction of chips and particles. Shock waves, generated by interferences of wavefronts aect the bulk material by breaking up its structure. Even the most abrasive particles can be processed using this non-contact treatment because the particles are broken up in the air. The EcoPulser disintegration bases on two counter rotating impeller wheels, which generate by their fast rotation extreme air oscillation and negative pressures. This air current takes in the chips or particles through the rotor so that their wood cells lled with air, water or ice tear apart by the negative pressure impact with the bres separating along their grain. The length of the wood bre nearly remains unchanged thus ensuring a higher board stability

Wind formers convey especially ne particles to the top faces, thus creating ne board surfaces. This is because ner particles are conveyed much farther in an air ow than coarser ones. The forming system of a particleboard line usually comprises two wind formers located at its front and rear ends, as they form the top and the rear board surfaces. The ecoFormer SL by CMC Texpan has been developed from the traditional wind former technology. This was because we wanted to improve the separation of coarse and nes particles to create the optimal board surface. The air ow was simulated using the CFD method (Computational Fluid Dynamics) and optimised with respect to its aerodynamic behaviour thus improving its energy eciency. The ecoFormer SL can also be easily retrotted into existing mat formers, since its outer dimensions are compatible with the conventional wind formers oered by CMC. Features, function

The cooling and stacking line, which is downstream of the ContiRoll®, is the rst part of the nishing line. This is where the continuous process becomes a discontinuous one and the boards are cut from the endless mat. The cooling and stacking line is the rst section of an intralogistical concept that Siempelkamp develops with the customer: We work with the plant owner to dene the best master-board formats that will allow the later end-product formats to be made without ocuts. We develop all downstream processes for the master board and product on the basis of optimum material ows in constant dialogue with the customer. To this end, Siempelkamp sets up a team of experts that will act as the reliable partner throughout the process – from the intralogistical concept, technical implementation, assembly and commissioning/start-up to ongoing support Features and functions Saw section Rejects area Cooling section High-stack forming

The boards are trimmed, cleaned, checked and (if necessary) cooled in the nishing line. Features, function Any excess material caused by the decorative paper being larger than the carrier board is removed from edges on the nished boards in the edgetrimming unit. Rotating brushes then remove any residues that are clinging to the surface. A member of sta will visually assess the quality of the coated board on both sides at the inspection station. The boa station so that it can be inspected from the bottom. The board is then placed in the stack appropriate for its quality Advantages The modular design allows basic modules and optional modules to

The forming line consists of machines for orienting and forming a multi-layer strand mat for OSB production. The forming line consists of two mat formers including disc orienter heads to create the surface layer and one or two mat formers including pocket orienter heads to create the core layer. The threelayer strand mat thus produced enables high orienting degrees and is a prerequisite for meeting the relevant OSB-standard requirements. Additional devices for quality monitoring complete the function of Siempelkamp’s forming line. The plant modules can be adjusted to the respective requirements thus preparing the mat optimally for its compaction in a ContiRoll®. The equipment is designed to produce board thicknesses between 6 and 38 mm without any problem. The forming belt conveyor is a modular design as well tuned to plant output and feasible board formats.