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Board equipment is the core equipment supporting industries such as wood processing, building materials manufacturing, and furniture production. It is necessary to build a full-chain equipment system of 'raw material pretreatment - forming processing - post-treatment - inspection' according to the material characteristics and production processes of board types (such as artificial boards, metal boards, and composite boards). Its core objective is to achieve 'efficient production, precise control, and green environmental protection', meeting the demands for key indicators such as the thickness, flatness, and strength of the plates in different scenarios. The following systematically analyzes the technical characteristics and application logic of sheet equipment from four major dimensions: equipment classification (by sheet type), core production processes and corresponding equipment, key technical parameters, and industry trends.

I. Classification of Sheet Equipment: Classified by sheet material and application scenarios

The production processes of boards made of different materials (such as artificial boards, metal boards, composite boards, etc.) vary greatly, and the corresponding equipment systems are also completely different. The following is the classification of core equipment for the three mainstream types of sheet materials:

1. Artificial board equipment (most widely used: furniture, decoration, packaging fields)

Artificial boards are made from wood waste (sawdust, shavings, wood fibers) or plant fibers (straw, bamboo fibers) through the process of 'crushing - mixing with glue - forming - hot pressing'. They mainly include three categories: particleboard, fiberboard (medium-density MDF, high-density HDF), and plywood. The corresponding equipment systems are as follows

Key equipment, functions and technical points of the core production process of artificial board types

Pre-treatment of particleboard raw materials → particle preparation → mixing with glue → laying → hot pressing → sanding → sawing 1. Wood crusher (drum type/hammer type)

2. Chipper (Ring type/disc type)

3. Rubber mixer (Double-shaft paddle type)

4. Paving forming machine (Air flow/mechanical paving)

5. Hot press (multi-layer/continuous flat press)

6. Sanding machine (Broadband sanding machine)

7. Longitudinal and transverse sawing machine - crusher: Processes wood with a diameter of ≤300mm, and the output particle size is ≤50mm;

- Wood chipper: Turns wood chips into qualified wood chips with a thickness of 0.3-1.5mm and a length of 5-20mm.

- Hot press: Temperature 180-220℃, pressure 2.5-4MPa, hot pressing time 30-60s/mm (sheet thickness);

- Sanding machine: The mesh size of the sanding belt is 80-120 mesh, and the flatness of the board after sanding is ≤0.1mm/m

Pre-treatment of medium density fiberboard (MDF) raw materials → fiber preparation → mixing with glue → drying → laying → hot pressing → sanding 1 Chipper (drum chipper)

2. Hot mill (Disc type/ring type)

3. Fiber Dryer (Pipeline type/Drum type)

4. Glue mixer (Spray type)

5. Continuous flat press hot press

6. Double sand frame broadband sanding machine - thermal mill: Grind wood chips into wood fibers with a fineness of ≥80 mesh (passing through an 80-mesh sieve), with a steam pressure of 0.8-1.2MPa;

- Dryer: Reduces the moisture content of fibers from 60%-80% to 8%-12%, with an outlet temperature of ≤60℃ (anti-gelation);

Continuous flat press hot press: Production speed 15-30m/min, sheet thickness tolerance ±0.1mm

Plywood log rotary cutting → veneer drying → gluing → assembly → hot pressing → edge sawing → sanding 1. Rotary cutting machine (CNC guilt-free rotary cutting machine)

2. Veneer dryer (mesh belt type/roller type)

3. Gluing machine (roller coating type/spray coating type)

4. Blank forming machine (manual/automatic blank forming table)

5. Multi-layer hot press

6. Edge trimming machine (straight edge trimming machine) - Rotary cutting machine: Rotary cutting veneer thickness 0.2-2mm, accuracy ±0.05mm, log diameter ≥200mm;

- Gluing machine: Gluing amount 150-200g/㎡ (dry glue), uniformity deviation of the glue layer ≤5%;

- Multi-layer hot press: Hot pressing temperature 120-160℃, pressure 1.2-2MPa, hot pressing time 60-120 seconds per layer

2. Metal sheet equipment (industrial and construction fields: such as steel plate and aluminum plate processing)

Metal sheet equipment uses 'cold-rolled steel plates, aluminum plates, and stainless steel plates' as raw materials. The core is to achieve forming processing such as 'cutting - bending - stamping - welding', meeting the requirements of equipment shells, building curtain walls, pressure vessels and other scenarios. The main equipment is as follows:

Technical parameter requirements for the applicable scenarios of key equipment in processing procedures

Cutting and blanking 1. CNC shearing machine (gate type/pendulum type)

2. CNC laser cutting machine (Fiber laser)

3. Plasma cutting machine for cutting plates to a fixed size (such as cutting steel plates to 1220×2440mm) - CNC shearing machine: shearing thickness ≤30mm (steel plate), shearing accuracy ±0.1mm/m, stroke speed 10-30mm/s;

Fiber laser cutting machine: Cutting thickness ≤20mm (carbon steel), positioning accuracy ±0.03mm, cutting speed 5-15m/min

Bending forming 1. CNC bending machine (hydraulic/electro-hydraulic servo)

2. Plate rolling machine (three-roll/four-roll) bends plates into right angles, arcs and other shapes (such as bending equipment shells) - CNC bending machine: Bending thickness ≤40mm (steel plate), bending Angle accuracy ±0.1°, positioning accuracy ±0.02mm;

Three-roll plate bending machine: Rolls cylinders with a diameter of ≥300mm, plate thickness ≤25mm, and roundness deviation ≤0.5mm

Stamping forming 1. CNC punching machine (turret punching machine)

2. Press (hydraulic/mechanical press) sheet metal punching, blanking, stretching (such as punching steel plates for ventilation holes) - turret press: Punching diameter φ1-φ100mm, punching speed 300-1000 times per minute, positioning accuracy ±0.02mm;

- Hydraulic press: Nominal pressure 100- 10,000 kN, stroke accuracy ±0.05mm

Welding/Grinding 1. Laser welding machine (Fiber laser)

2. CNC grinding machine (robot grinding system) metal plate splicing, weld seam treatment (such as curtain wall plate welding) - laser welding machine: Welding thickness ≤10mm (stainless steel), weld seam strength ≥ 90% of the base material strength;

- Robot grinding: The surface roughness of the board after grinding is Ra≤1.6μm, and the grinding efficiency is 2-5 square meters per minute

3. Composite board equipment (High-end scenarios: such as insulation boards, decorative composite boards)

Composite boards are composed of multiple layers of 'base material + surface material + core material' (such as aluminum-plastic composite boards, polyurethane insulation boards, wood-plastic composite boards). The core of the equipment is to achieve 'interlayer bonding and curing forming' to ensure the composite strength and durability. The main equipment is as follows:

Key technical points of core production process and equipment for composite board types

Aluminum-plastic composite panel aluminum coil pretreatment → gluing → core material composite → hot pressing → slitting → film coating 1 Aluminum coil cleaning machine (Spray type

2. Roller coater (double-sided gluing)

3. Compound machine (three-roll compound)

4. Continuous hot press (roller press type)

5. CNC slitting machine - gluing machine: Gluing amount 5-10g/㎡ (dry glue), uniform glue layer without bubbles;

- Hot press: Temperature 80-120℃, pressure 0.5-1MPa, laminating speed 5-15m/min;

- Slitting machine: Slitting accuracy ±0.1mm, no burrs on the edges

Polyurethane insulation board base material laying → Polyurethane foaming → Composite pressing → curing → cutting 1. Polyurethane foaming machine (high-pressure foaming machine

2. Continuous composite production line (including base material unwinding, foaming and lamination)

3. Automatic cutting saw (CNC cutting)

4. Curing kiln (hot air circulation) - foaming machine: Foaming ratio 20-50 times, foam density 30-50kg/m³;

- Composite line: Production speed 2-5m/min, thickness tolerance of the composite sheet ±0.5mm;

Curing kiln: Temperature 50-70℃, curing time 2-4 hours

Wood-plastic composite board (WPC) : Wood powder/plastic mixing → extrusion molding → cooling → traction → cutting 1. Twin-screw extruder (conical twin-screw)

2. Molds (Special molds for sheet materials)

3. Cooling setting machine (vacuum setting)

4. Traction machine (crawler type

5. CNC cutting machine - extruder: Screw speed 30-60r/min, barrel temperature 160-200℃ (PP substrate);

- Setting machine: Vacuum degree -0.06 to -0.08MPa, the straightness of the sheet after setting ≤0.5mm/m;

- Traction machine: Traction speed 1-5m/min, stable traction force without slippage

Ii. Core Production Processes and Supporting Systems of Sheet Metal Equipment

No matter what type of board it is, its production process requires the coordination of 'main equipment + auxiliary systems' to ensure high efficiency, stability and environmental protection. Taking artificial board (medium density fiberboard) as an example, the complete production process and supporting equipment are as follows:

1. Raw material pretreatment stage (ensuring raw material quality)

Equipment combination: Chipper (cutting logs into 20×20×300mm wood chips) → wood chip screening machine (removing impurities and substandard wood chips) → wood chip washing machine (removing sand and reducing equipment wear);

Core requirements: The qualified rate of wood chips should be no less than 95% (thickness 2-5mm, length 50-300mm), and the impurity content should be no more than 0.5%.

2. Fiber preparation stage (Core process of artificial board)

Equipment combination: Thermal mill (grinding wood chips into wood fibers) → Fiber separator (separating fiber clusters to ensure uniform fibers) → Fiber dryer (reducing moisture content)

Key control: Steam pressure of the hot mill 1.0-1.2MPa, fiber fineness ≥80 mesh; After drying, the moisture content of the fibers is 8% to 12% (if it is too high, it may cause bubbling during hot pressing; if it is too low, it may cause the board to crack).

3. Forming and hot pressing stage (determining the strength and flatness of the sheet)

Equipment combination: Glue mixer (spray type glue application, with urea-formaldehyde resin or MDI as the adhesive) → laying and forming machine (air flow laying to ensure uniform board density) → continuous flat press hot press;

Process parameters: 8%-12% of rubber mixing (dry rubber accounting for the dry weight of fibers); The laying density is 600-800kg/m³ (medium density fiberboard). The hot pressing temperature is 180-200℃, the pressure is 3-4MPa, and the production speed is 20-25m/min.

4. Post-processing stage (Enhancing the precision and appearance of the sheet)

Equipment combination: Cooling conveyor (cooling the hot-pressed sheet to room temperature) → Sanding machine (double sanding frame wide band sanding, coarse sanding first, then fine sanding) → longitudinal and transverse edge sawing machine (cutting to standard size, such as 1220×2440mm) → Surface laminating machine (optional, covering PVC or decorative paper);

Quality requirements: After sanding, the thickness tolerance of the board is ±0.1mm, and the surface roughness Ra is ≤3.2μm. The diagonal deviation of the board after sawing is no more than 0.5mm.

5. Auxiliary System (Ensuring Production Stability and environmental Protection

Environmental protection system: Dust collector (pulse bag filter, dust emission concentration ≤10mg/m³) → waste gas treatment equipment (waste gas from the hot mill is burned + adsorbed by activated carbon, VOCs emission ≤30mg/m³) → Wastewater treatment equipment (water washing wastewater is settled + filtered, recycling rate ≥80%);

Control system: Central control system (PLC + touch screen, real-time monitoring of parameters such as temperature, pressure and speed of each device, automatic alarm when abnormal, and traceable production data).

Iii. Key Technical Parameters for Plate Equipment Selection (Pitfall Avoidance Guide)

Selection should focus on the three core aspects of 'production scale, board quality, and environmental protection requirements', and pay special attention to the following technical parameters to avoid 'excessive performance' or 'insufficient precision' :

Capacity matching (Select based on annual output or daily output)

Small-scale production line (annual output of 10,000 to 50,000 cubic meters of artificial boards) : A 'multi-layer hot press' (with 10 to 15 layers and a daily production capacity of 50 to 100 cubic meters) can be selected, and the equipment investment is relatively low.

Large-scale production lines (annual output of 100,000-300,000 cubic meters of artificial boards) : A 'continuous flat press hot press' (width 2.5-4.8 meters, daily production capacity 500-1000 cubic meters) should be selected, which features high production efficiency and stable board quality.

Metal sheet processing (such as curtain wall panels) : Select the type based on the 'daily processing area'. For example, for a CNC laser cutting machine, choose a '3000×1500mm worktable', with a daily processing area of 50-100 square meters (adjust according to the cutting thickness).

2. Precision control (directly affecting the quality of the sheet)

Thickness tolerance: For artificial boards, it should be ≤±0.1mm (medium density fiberboard); for metal sheets, the bending Angle tolerance should be ≤±0.1°; for composite boards, the interlayer bonding degree should be ≤0.1mm/m.

Positioning accuracy: The positioning accuracy of CNC equipment (such as laser cutting machines, bending machines) is ≤±0.03mm, and the repeat positioning accuracy is ≤±0.02mm.

Surface quality: The flatness of the plate after sanding by the sanding machine is ≤0.1mm/m, and the roughness Ra of the metal plate after grinding is ≤1.6μm.

3. Environmental Protection and Energy Consumption (in compliance with national policy requirements)

Energy consumption index: The unit energy consumption of the artificial board production line is ≤800kWh/m³ (for medium density fiberboard), and the thermal efficiency of the hot press is ≥85%.

Environmental protection indicators: Dust emission concentration ≤10mg/m³ (in compliance with GB 13271-2014), VOCs emission ≤30mg/m³ (in compliance with GB 37822-2019), wastewater recycling rate ≥80%.

4. Degree of automation (Reducing labor costs)

Small enterprises: 'Semi-automatic equipment' (such as manual blank assembly, semi-automatic sanding) can be selected, with a labor requirement of 3-5 people per shift.

Large enterprises: It is recommended to use 'fully automatic production lines' (such as CNC rotary cutting, automatic laying, and robot grinding), which require 1-2 workers per shift, increase production efficiency by 30% to 50%, and offer higher quality stability.

Iv. Trends in the Sheet Metal Equipment Industry (Green, Intelligent, and Large-scale

With the tightening of environmental protection policies and the demand for industrial upgrading, sheet metal equipment is developing in the following directions:

1. Greening: Low energy consumption and low pollution

Heating method upgrade: The hot press has shifted from 'steam heating' to 'electromagnetic heating', increasing thermal efficiency from 80% to over 95% and reducing energy consumption by 15% to 20%.

Environmental protection equipment integration: The production line is standardly equipped with an integrated 'dust - waste gas - waste water' treatment system. Some equipment adopts 'glue-free molding technology' (for example, wood-plastic boards are physically fused and compounded to avoid formaldehyde release).

Waste recycling and utilization: Equipped with a 'leftover material crusher + reuse system', the sawing waste is crushed and reused in production, increasing the raw material utilization rate to over 98%.

2. Intelligence: Digitalization, unmanned operation

Intelligent monitoring: Through 'industrial Internet + sensors', parameters such as equipment temperature, pressure, and speed are collected in real time. AI algorithms predict equipment failures (such as early warning of aging of sealing rings in hot presses), reducing the failure rate by 40%.

Unmanned production: The large-scale artificial board production line has achieved full unmanned operation throughout the entire process from raw material entry to finished product exit. Raw materials are transported by AGV carts, and robots complete processes such as blank assembly and film coating, increasing production efficiency by 50%.

Flexible production: CNC equipment (such as laser cutting machines and bending machines) supports 'one-click production change', allowing for quick switching of sheet sizes and process parameters to meet the demands of small-batch and multi-variety orders (such as customized metal curtain wall panels).

3. Large-scale: High capacity and high efficiency

Equipment specifications have been expanded: The width of the continuous flat press hot press has been extended from 2.5m to 4.8m, and the daily production capacity has been increased from 500m³ to 1500m³, meeting the large-scale production demands of large wood-based panel enterprises.

Integrated design: The composite board production line has shifted from 'single-process equipment' to 'integrated production line' (for instance, the aluminum-plastic composite board production line integrates cleaning, gluing, lamination and slitting, with the production speed increased to 20m/min).

High-speed processing: The cutting speed of the metal sheet laser cutting machine has been increased from 10m/min to 30m/min (carbon steel thickness ≤10mm), and the stamping speed of the CNC punching machine has been raised from 500 times per minute to 1500 times per minute.

Summary: Core Logic of plate equipment selection and application

The selection of sheet material equipment should follow the principles of 'scene adaptation, parameter matching, and long-term sustainability' :

Scene adaptation: Determine the equipment system based on the type of board (artificial board/metal board/composite board) and application field (furniture/construction/industry). For example, in the furniture industry, 'medium density fiberboard production line + sanding machine + laminating machine' is preferred.

Parameter matching: Determine the equipment specifications based on production capacity requirements (for example, a continuous flat press hot press should be selected for an annual output of 100,000 m³ of artificial boards), and confirm the precision parameters according to quality requirements (for example, the roughness Ra of decorative boards should be ≤1.6μm by a sanding machine).

Long-term sustainability: Prioritize the selection of 'energy-saving and intelligent' equipment, taking into account both compliance with environmental protection policies and the demand for future capacity expansion, to avoid short-term cost savings leading to excessively high long-term operating costs.

Through scientific equipment selection and system configuration, the production of sheet materials can be transformed from 'inefficient and extensive' to 'efficient and precise', providing high-quality and highly stable sheet material products for downstream industries.