MH-OSB
MINGHUNG
A complete OSB I-Joist production line is a highly specialized and automated system, typically consisting of two core sections: the OSB Panel Production Section and the I-Joist Assembly Section. Below is a detailed list of equipment required to achieve this capacity and product standard.
 | Part 1: OSB Oriented Strand Board Panel Production Equipment |
1. Raw Material Handling Section
Long Log Debarker: Efficiently debarks raw logs to ensure strand quality.
Drum Chipper: Chips logs into process chips that meet specifications.
Chip Screening and Re-crushing System: Screens for qualified chips; oversized chips are sent for re-crushing.
log debarker
wood chipper
2. Strand Preparation and Drying Section
Ring Flaker: Core equipment. Planes the wood chips into strands of specific dimensions. The morphology and quality of the strands directly determine the strength of the OSB.
Particle Dryer: Typically a triple-pass rotary drum dryer, uniformly drying the strands to the required moisture content (e.g., 2-4%).
Strand Screening and Storage System: Precisely screens dried strands by size into surface fines and core coarse particles, storing them separately.
wood flaker
drying machine
vibrating screen
3. Blending and Forming Section
Blending System: Includes weighing bins, high-speed blenders, and MDI/PMDI adhesive supply systems. Precisely applies isocyanate glue (MDI) and wax to surface and core strands.
Mechanical Oriented Former: Core technical equipment. Uses mechanical fingers or orienting heads to lay strands on the conveyor belt in preset directions (longitudinal or transverse) in layers, forming a mat with high strength orientation.
glue mixer system
OSB forming machine
4. Pressing and Finishing Section
Continuous Press: The heart of the production line. Subjects the formed mat to continuous high temperature and pressure for curing, forming dense, high-strength OSB panels. The continuous press ensures uniform density and stable performance.
Cooling and Star Cooler: Cools and sets the hot pressed panels, releasing internal stress.
Trimming Saws: Trims the continuous board into OSB panels of required sizes.
Sanding Machine: Sands the OSB panels to precise thickness and smoothness, preparing them for the subsequent precise processing into I-Joists.
continuous hot press
dryer rack
cross-cut saw
sander
| Part 2: I-Joist Assembly Production Line Equipment |
1. Raw Material Preparation Equipment
OSB Rip and Cross-Cut Saws: Precisely cuts large OSB panels into strips for manufacturing webs and flanges.
Lumber Cutting and Processing Equipment: Used to prepare wooden flanges (typically LVL or dimensional lumber).
2. I-Joist Assembly and Forming Equipment
Flange Notching Machine: Precisely machines tooth-like notches into the wooden flanges for interlocking with the OSB web.
Web Gluing System: Automatically and uniformly sprays high-performance structural adhesive (typically PUR hot melt adhesive) onto both edges of the OSB web.
Automatic Assembly Machine: Automatically aligns and assembles the top flange, bottom flange, and web into the "I" shape.
High-Frequency Press: Core bonding equipment. Applies pressure and high-frequency energy to the assembled I-Joist, rapidly curing the adhesive in a very short time to create a high-strength bond.
3. Finishing and Processing Equipment
Cut-off Saw: Precisely cuts the continuously pressed long joists to custom lengths.
Hole and Notch Drilling Machine: Precisely drills holes and notches in the joists for pipes and electrical wiring as required by building designs.
Automatic Stacking and Bundling System: Automatically stacks, bundles, and labels finished I-Joists.
4. Quality Control System (QCS)
Full-process Monitoring & MES System: Monitors and collects data from raw materials to finished products, enabling production traceability.
Online Testing Equipment: Such as a Stress Grader, which performs non-destructive testing on finished I-Joists to evaluate their mechanical properties and assign stress grades.
This production line represents a deep integration of OSB production technology and modern timber structure component manufacturing technology. Its core lies in oriented strand forming, continuous hot pressing, and high-frequency bonding assembly, ensuring the final product's high strength, high precision, and exceptional structural performance.
This production process is a highly integrated operation, divided into two core stages: OSB Panel Manufacturing and I-Joist Assembly. The entire process is connected by automated control systems to ensure efficient and stable output of high-quality structural I-Joists.
| Stage 1: OSB Panel Production Process (Preparing Webs and Flanges for I-Joists) |
1. Raw Material Preparation
Raw logs (typically fast-growing species like poplar or pine) are debarked and chipped into clean wood chips that meet process requirements.
2. Strand Preparation and Treatment
Washed chips are fed into a ring flaker and planed into specifically sized oriented strands.
The strands are dried (reducing moisture content to 2-4%), screened (separated into surface fines and core coarse particles), and stored in separate silos.
3. Blending and Oriented Forming
Surface and core strands are precisely weighed and then sent to high-speed blenders, where MDI resin and wax are applied uniformly.
Core Process: The resinated strands are laid in layers by a mechanical oriented former according to a preset direction (longitudinal or transverse), forming a mat with a high-strength orientation. This is the foundation of OSB's high mechanical properties.
4. Pressing and Finishing
The mat enters a continuous press where it is cured under high temperature and pressure, forming a dense OSB panel.
The pressed board is cooled, trimmed on all four edges, sanded to a precise thickness, and finally cut into large-format OSB panels. These panels are sent to the assembly line as raw material (webs and flanges) for the I-Joists.
| Stage 2: I-Joist Assembly Process |
1. Component Pre-processing
Flange Preparation: Lumber (or LVL) is cut into flange strips of the required width by a precision gang rip saw. A notching machine then mills precise tooth-like notches into the flanges.
Web Preparation: Large-format OSB panels are precisely cut into web strips of the designed height using rip saws and cross-cut saws.
2. Assembly and Gluing
The edges of the web strips are automatically coated with a uniform layer of PUR (Polyurethane) hot-melt adhesive by a gluing machine.
An automatic assembly machine accurately aligns and assembles the top flange, bottom flange, and web into an "I"-shaped blank.
3. High-Frequency Curing and Forming
The assembled I-Joist blank is fed into a high-frequency press. The HF field causes molecules in the glue to vibrate rapidly, generating heat. Under simultaneous mechanical pressure, the adhesive cures within seconds, creating a high-strength structural bond between the flanges and the web.
4. Cut-to-Length and Post-Processing
The cured continuous joist is sawn into custom lengths required by the customer using a cut-off saw.
According to architectural design drawings, CNC hole and notch drilling machines precisely create openings and slots in the joists for plumbing and electrical conduits.
5. Inspection and Packaging
Finished joists are non-destructively tested by a Machine Stress Rater (MSR) for grading and marking based on their mechanical properties.
Qualified I-Joists are finally stacked, bundled by automatic stackers, labeled, and prepared for shipment.
High-strength OSB I-Joists are core load-bearing components in modern wood-frame construction. Their excellent strength-to-weight ratio, dimensional stability, and green credentials have led them to gradually replace traditional steel and concrete joists in numerous construction fields. An annual capacity of 150,000 m³ indicates that this product is primarily targeted at large-scale, standardized commercial and industrial projects.
1. Residential Construction
Single-Family and Townhouses: Used as floor joists and roof trusses, easily enabling open-plan, column-free flexible space design and fast construction.
Multi-Story Apartments and Hotels: Used for floor systems. Their lightweight and high-strength properties reduce the overall building weight, lower foundation costs, and provide good fire and acoustic performance.
2. Commercial and Public Buildings
Schools and Hospitals: Used for floor and roof systems in classrooms and wards, providing a quiet, comfortable, and healthy environment.
Office and Retail Spaces: Ideal for venues requiring long spans and open layouts (e.g., shopping malls, gymnasiums, auditoriums), effectively reducing internal load-bearing columns and maximizing usable space.
Warehousing and Logistics Centers: Used for roof structures, capable of supporting heavy hanging loads (e.g., ventilation ducts, racks) with low corrosion and maintenance costs.
3. Industrial and Agricultural Buildings
Factories and Workshops: Used as roof trusses and purlins, offering fast construction speed and good thermal insulation for energy efficiency.
Farm Buildings and Storage Sheds: Used for roofs and loft platforms in barns, grain storage, etc., resistant to corrosive atmospheres in agricultural environments.
4. Other Special Applications
Building Renovation and Reinforcement: Used to replace rotten or inadequate wooden beams in old buildings or for adding new floors.
Modular and Prefabricated Construction: An ideal choice for modular homes due to precise dimensions and consistent quality, perfectly suited for rapid, mass production and assembly in factories.
Stage Sets and Temporary Facilities: Used for building temporary stages and roofs for concerts and theaters due to their lightweight and high strength.
Summary of Core Advantages:
The successful application of OSB I-Joists stems from their high structural efficiency, design flexibility, construction convenience, and environmental sustainability. A production capacity of 150,000 m³ per year ensures a stable supply for large projects, promoting the application of modern wood-frame construction in broader fields.
For more information, welcome contact us, we will reply you quickly and offer working videos with you.
Whatsapp: +8618769900191 +8615589105786 +8618954906501
Email: osbmdfmachinery@gmail.com
A complete OSB I-Joist production line is a highly specialized and automated system, typically consisting of two core sections: the OSB Panel Production Section and the I-Joist Assembly Section. Below is a detailed list of equipment required to achieve this capacity and product standard.
| Part 1: OSB Oriented Strand Board Panel Production Equipment |
1. Raw Material Handling Section
Long Log Debarker: Efficiently debarks raw logs to ensure strand quality.
Drum Chipper: Chips logs into process chips that meet specifications.
Chip Screening and Re-crushing System: Screens for qualified chips; oversized chips are sent for re-crushing.
log debarker
wood chipper
2. Strand Preparation and Drying Section
Ring Flaker: Core equipment. Planes the wood chips into strands of specific dimensions. The morphology and quality of the strands directly determine the strength of the OSB.
Particle Dryer: Typically a triple-pass rotary drum dryer, uniformly drying the strands to the required moisture content (e.g., 2-4%).
Strand Screening and Storage System: Precisely screens dried strands by size into surface fines and core coarse particles, storing them separately.
wood flaker
drying machine
vibrating screen
3. Blending and Forming Section
Blending System: Includes weighing bins, high-speed blenders, and MDI/PMDI adhesive supply systems. Precisely applies isocyanate glue (MDI) and wax to surface and core strands.
Mechanical Oriented Former: Core technical equipment. Uses mechanical fingers or orienting heads to lay strands on the conveyor belt in preset directions (longitudinal or transverse) in layers, forming a mat with high strength orientation.
glue mixer system
OSB forming machine
4. Pressing and Finishing Section
Continuous Press: The heart of the production line. Subjects the formed mat to continuous high temperature and pressure for curing, forming dense, high-strength OSB panels. The continuous press ensures uniform density and stable performance.
Cooling and Star Cooler: Cools and sets the hot pressed panels, releasing internal stress.
Trimming Saws: Trims the continuous board into OSB panels of required sizes.
Sanding Machine: Sands the OSB panels to precise thickness and smoothness, preparing them for the subsequent precise processing into I-Joists.
continuous hot press
dryer rack
cross-cut saw
sander
| Part 2: I-Joist Assembly Production Line Equipment |
1. Raw Material Preparation Equipment
OSB Rip and Cross-Cut Saws: Precisely cuts large OSB panels into strips for manufacturing webs and flanges.
Lumber Cutting and Processing Equipment: Used to prepare wooden flanges (typically LVL or dimensional lumber).
2. I-Joist Assembly and Forming Equipment
Flange Notching Machine: Precisely machines tooth-like notches into the wooden flanges for interlocking with the OSB web.
Web Gluing System: Automatically and uniformly sprays high-performance structural adhesive (typically PUR hot melt adhesive) onto both edges of the OSB web.
Automatic Assembly Machine: Automatically aligns and assembles the top flange, bottom flange, and web into the "I" shape.
High-Frequency Press: Core bonding equipment. Applies pressure and high-frequency energy to the assembled I-Joist, rapidly curing the adhesive in a very short time to create a high-strength bond.
3. Finishing and Processing Equipment
Cut-off Saw: Precisely cuts the continuously pressed long joists to custom lengths.
Hole and Notch Drilling Machine: Precisely drills holes and notches in the joists for pipes and electrical wiring as required by building designs.
Automatic Stacking and Bundling System: Automatically stacks, bundles, and labels finished I-Joists.
4. Quality Control System (QCS)
Full-process Monitoring & MES System: Monitors and collects data from raw materials to finished products, enabling production traceability.
Online Testing Equipment: Such as a Stress Grader, which performs non-destructive testing on finished I-Joists to evaluate their mechanical properties and assign stress grades.
This production line represents a deep integration of OSB production technology and modern timber structure component manufacturing technology. Its core lies in oriented strand forming, continuous hot pressing, and high-frequency bonding assembly, ensuring the final product's high strength, high precision, and exceptional structural performance.
This production process is a highly integrated operation, divided into two core stages: OSB Panel Manufacturing and I-Joist Assembly. The entire process is connected by automated control systems to ensure efficient and stable output of high-quality structural I-Joists.
| Stage 1: OSB Panel Production Process (Preparing Webs and Flanges for I-Joists) |
1. Raw Material Preparation
Raw logs (typically fast-growing species like poplar or pine) are debarked and chipped into clean wood chips that meet process requirements.
2. Strand Preparation and Treatment
Washed chips are fed into a ring flaker and planed into specifically sized oriented strands.
The strands are dried (reducing moisture content to 2-4%), screened (separated into surface fines and core coarse particles), and stored in separate silos.
3. Blending and Oriented Forming
Surface and core strands are precisely weighed and then sent to high-speed blenders, where MDI resin and wax are applied uniformly.
Core Process: The resinated strands are laid in layers by a mechanical oriented former according to a preset direction (longitudinal or transverse), forming a mat with a high-strength orientation. This is the foundation of OSB's high mechanical properties.
4. Pressing and Finishing
The mat enters a continuous press where it is cured under high temperature and pressure, forming a dense OSB panel.
The pressed board is cooled, trimmed on all four edges, sanded to a precise thickness, and finally cut into large-format OSB panels. These panels are sent to the assembly line as raw material (webs and flanges) for the I-Joists.
| Stage 2: I-Joist Assembly Process |
1. Component Pre-processing
Flange Preparation: Lumber (or LVL) is cut into flange strips of the required width by a precision gang rip saw. A notching machine then mills precise tooth-like notches into the flanges.
Web Preparation: Large-format OSB panels are precisely cut into web strips of the designed height using rip saws and cross-cut saws.
2. Assembly and Gluing
The edges of the web strips are automatically coated with a uniform layer of PUR (Polyurethane) hot-melt adhesive by a gluing machine.
An automatic assembly machine accurately aligns and assembles the top flange, bottom flange, and web into an "I"-shaped blank.
3. High-Frequency Curing and Forming
The assembled I-Joist blank is fed into a high-frequency press. The HF field causes molecules in the glue to vibrate rapidly, generating heat. Under simultaneous mechanical pressure, the adhesive cures within seconds, creating a high-strength structural bond between the flanges and the web.
4. Cut-to-Length and Post-Processing
The cured continuous joist is sawn into custom lengths required by the customer using a cut-off saw.
According to architectural design drawings, CNC hole and notch drilling machines precisely create openings and slots in the joists for plumbing and electrical conduits.
5. Inspection and Packaging
Finished joists are non-destructively tested by a Machine Stress Rater (MSR) for grading and marking based on their mechanical properties.
Qualified I-Joists are finally stacked, bundled by automatic stackers, labeled, and prepared for shipment.
High-strength OSB I-Joists are core load-bearing components in modern wood-frame construction. Their excellent strength-to-weight ratio, dimensional stability, and green credentials have led them to gradually replace traditional steel and concrete joists in numerous construction fields. An annual capacity of 150,000 m³ indicates that this product is primarily targeted at large-scale, standardized commercial and industrial projects.
1. Residential Construction
Single-Family and Townhouses: Used as floor joists and roof trusses, easily enabling open-plan, column-free flexible space design and fast construction.
Multi-Story Apartments and Hotels: Used for floor systems. Their lightweight and high-strength properties reduce the overall building weight, lower foundation costs, and provide good fire and acoustic performance.
2. Commercial and Public Buildings
Schools and Hospitals: Used for floor and roof systems in classrooms and wards, providing a quiet, comfortable, and healthy environment.
Office and Retail Spaces: Ideal for venues requiring long spans and open layouts (e.g., shopping malls, gymnasiums, auditoriums), effectively reducing internal load-bearing columns and maximizing usable space.
Warehousing and Logistics Centers: Used for roof structures, capable of supporting heavy hanging loads (e.g., ventilation ducts, racks) with low corrosion and maintenance costs.
3. Industrial and Agricultural Buildings
Factories and Workshops: Used as roof trusses and purlins, offering fast construction speed and good thermal insulation for energy efficiency.
Farm Buildings and Storage Sheds: Used for roofs and loft platforms in barns, grain storage, etc., resistant to corrosive atmospheres in agricultural environments.
4. Other Special Applications
Building Renovation and Reinforcement: Used to replace rotten or inadequate wooden beams in old buildings or for adding new floors.
Modular and Prefabricated Construction: An ideal choice for modular homes due to precise dimensions and consistent quality, perfectly suited for rapid, mass production and assembly in factories.
Stage Sets and Temporary Facilities: Used for building temporary stages and roofs for concerts and theaters due to their lightweight and high strength.
Summary of Core Advantages:
The successful application of OSB I-Joists stems from their high structural efficiency, design flexibility, construction convenience, and environmental sustainability. A production capacity of 150,000 m³ per year ensures a stable supply for large projects, promoting the application of modern wood-frame construction in broader fields.
For more information, welcome contact us, we will reply you quickly and offer working videos with you.
Whatsapp: +8618769900191 +8615589105786 +8618954906501
Email: osbmdfmachinery@gmail.com
