Mecfab design, build and install equipmentsfor the paper and pulp industryMecfab has the expertise and equipments required to design
machine, assemble and install a complete section in the wet end of the machine
Mecfab's mission is to become a prosperous companyby the increase of the industrial productivityof its customers in the pulp and paper industry.
We believe in complete partnership betweenour clients and our team of experts- We excel at coming up with unique approachesthat are "made to measure", and that respect budgetsand tight deadlines
Achievements - Custom design
Headbox
Headbox
Air pad
Primary
PRIMARY AIR PAD HEADBOX Mecfab has extensive experience in designing and manufacturing air pad headboxes for diverse papermaking applications. The headbox is a critical part of the paper machine, and its impact on the overall quality of the papermaking process is of prime importance. The headbox must transform the flow of stock to a homogeneous flow across the width of the machine, creating a paper sheet that is free of streaks and flocs. Mecfab’s rectifier roll headboxes are designed and manufactured to meet or exceed customers’ needs. All our designs are carefully thought out to ensure ease of operation and maintenance. Our primary objective is to provide a headbox that can accept a wide range of grade changes while ensuring the utmost degree of quality. Air Pad Headbox technical sheet OUR REALISATIONS: Air Pad Headbox for Kraft Paper (PDF) Air Pad Headbox for Linerboard (PDF) Air Pad Headbox for Corrugated Medium (PDF) Air Pad Headbox for Speciality Grades (PDF) Air Pad Headbox for Tissue (PDF)
Secondary
SECONDARY AIR PAD HEADBOX Mecfab can design and manufacture hydraulic and air-pad secondary headboxes for diverse papermaking applications. Secondary headboxes are generally used to provide a top layer of high-quality fiber relative to the bottom layer from the primary headbox. Paper machines operating at high speed and covering a limited range of basic weight require a hydraulic secondary headbox. Our secondary headboxes meet and exceed customers’ needs and requirements. Careful consideration is given to ensure ease of maintenance and operation. Secondary Headbox technical sheet OUR REALISATIONS: Secondary Heabox for Linerboard #1 (PDF) Secondary Headbox for Linerboard #2 (PDF).
Hydraulic
High speed
HIGH SPEED HYDRAULIC HEADBOX Mecfab has unparalleled experience in designing and manufacturing hydraulic headboxes for diverse high-speed papermaking applications. The headbox is a critical part of the paper machine, and its impact on the overall quality of the papermaking process is of prime importance. The headbox makes sure the flow of stock across the width of the machine is homogeneous to ensure the paper sheet is free of streaks and flocs. Mecfab’s hydraulic headboxes are carefully designed and manufactured to meet or exceed customers’ needs and to ensure ease of operation and maintenance. Hydraulic Headbox technical sheet OUR REALISATIONS: Hydraulic Headbox for Newsprint (PDF) Hydraulic Headbox for Towel white & brown (PDF).
Twin wire
TWIN WIRE HYDRAULIC HEADBOX Mecfab can design and manufacture any type of twin-wire hydraulic headbox for diverse process applications (i.e. top formers, hybrid formers and gap formers). Twin-wire hydraulic headboxes are used in conjunction with twin-wire formers for high-speed and quality requirements. These combined units, compared to a conventional headbox/fourdrinier arrangement, provide greater dewatering capacity and help improve formation. Twin Wire Hydraulic Headbox technical sheet OUR REALISATIONS: Twin Wire Hydraulic Headbox for Newsprint #1 (PDF) Twin Wire Hydraulic Headbox for Newsprint #2 (PDF).
With radial distributor
HYDRAULIC HEADBOX WITH RADIAL DISTRIBUTOR The hydraulic headbox is designed to accept the stock delivered from the radial distributor. It transforms the pipeline flow into a uniform rectangular flow equal to the width of the paper machine and at a uniform depth and velocity. The radial distributor takes the stock from the fan pump and, owing to its symmetry and the use of a diffusion block along with air bleeds, eliminates the flow pulsations emanating from the fan pump and bleed off any entraped air in the stock. The stock is then fed to the headbox through smooth-bore Teflon© hoses reinforced with an EPDM rubber cover. These hoses are of equal length to ensure an even stock flow across the machine width. Hydraulic Headbox with Radial Distributor technical sheet OUR REALISATIONS: Hydraulic Headbox with Radial Distributor (PDF).
With suction breast roll
HYDRAULIC HEADBOX WITH SUCTION BREAST ROLL The hydraulic headbox is designed to accept the stock delivered from the approach piping. It transforms the pipeline flow into a uniform rectangular flow equal to the width of the paper (or tissue) machine and at a uniform depth and velocity. Hydraulic Headbox for Suction Breast Roll technical sheet OUR REALISATIONS: Hydraulic Headbox with Suction Breast Roll for Facial and Toilet Tissue (PDF) Hydraulic Headbox with Suction Breast Roll for Facial 2 ply, Napkin & Tissue (PDF) Hydraulic Headbox with Suction Breast Roll for Tissue (PDF).
Dilution
DILUTION HEADBOX WITH RADIAL DISTRIBUTOR The headbox is the heart of the paper machine. Its role in the overall quality of the papermaking process is important. The headbox makes sure the flow of stock across the width of the machine is homogeneous to ensure the paper sheet is free of streaks and flocs. Mecfab’s headboxes equipped with a radial distributor ensure optimum sheet quality through control of stock pressure and velocity across the machine width. The easy-to-adjust dilution control system allows local basis-weight adjustments. Mecfab’s headboxes are carefully designed and manufactured to meet and exceed customers ’needs, and to ensure ease of maintenance and operation. Dilution Headbox with Radial Distributor technical sheet OUR REALISATIONS: Dilution Headbox with Radial Distributor (PDF).
Atmospheric
ATMOSPHERIC Headbox Atmospheric headboxes are used for low speed applications. Since the formation and uniformity of the final paper are dependent on the even dispersion of fibers and fillers, the design and operation of the headbox system are absolutely critical to a successful papermaking system. The Mecfab headboxes are designed to convey the stock delivered from the fan pump and transform the pipeline flow into a uniform rectangular flow equal in width to the paper machine and at uniform velocity in the machine direction. Our headboxes are designed to meet the following primary objectives: Spread stock evenly across the wire width of the machine Level-out cross currents and consistency variations Level out machine direction velocity gradients Create controlled turbulence to eliminate fiber flocking Discharge an even flow from the slice opening and adjustment for proper impingement on the wire at the correct location and angle. OUR REALISATIONS: Atmospheric Headbox (PDF).
Spare parts
Mecfab se spécialise dans la fabrication de machinerie pour la partie humide des machines à papier, telles les caisses d'arrivée et les fourdriniers et leurs composantes. Nous pouvons vous fournir la plupart des accessoires pour vos machines, que nous soyons le manufacturier original de vos équipements ou non. Mecfab possède l'expertise et les équipements nécessaires pour concevoir et fabriquer une gamme complète d'accessoires et d'options pour vos caisses d'arrivée et vos fourdriniers. Nous pouvons les fabriquer selon vos spécifications ou en suivant nos propres modèles de conception. De plus, lors d'arrêts de machines, nous pouvons démonter vos équipements et y installer les pièces que nous avons fabriquées. Notre équipe d'experts peut également vous aider à modifier vos équipements existants pour atteindre de nouveaux standards. Nous pouvons vous aider à transformer vos machines pour de nouvelles applications et les reconditionner et les moderniser si nécessaire. (Pour voir la liste de nos pièces les plus populaires, SVP activer le menu déroulant à gauche de cette page).
