D28 series 3D welding table Steel Q355 4000*2000*200mm

1. Tabletop Design
   D28 Hole System Layout: φ28mm positioning holes are distributed in a 100mm×100mm array. The hole walls are precision bored with a surface roughness of Ra1.6 and a positioning accuracy of ±0.05mm, supporting quick positioning and clamping.
   Grid Line Marking: 100mm×100mm grid lines are etched onto the surface, with a line width of 0.5mm, facilitating quick workpiece alignment and dimensional measurement.
   Five-Sided Positioning: The tabletop and all four sides (5 surfaces in total) have positioning/connecting holes, enabling three-dimensional positioning of workpieces and supporting the splicing and expansion of multiple welding tables for extra-large workpieces.
2. Table Body and Reinforcement Ribs
   Q355 Steel Forming: Made from ≥200mm thick Q355 steel plates, either integrally cut and welded or assembled from multiple plates, followed by overall tempering to release internal stress and prevent deformation after welding.
   Bottom Reinforcement Ribs: Intersecting longitudinal and transverse reinforcement ribs enhance the rigidity of the table body, reduce bending deformation under heavy loads, and ensure the flatness of the tabletop.
3. Surface Treatment and Protection
   Nitriding Treatment (Optional): Increases surface hardness to over HV600, improves wear resistance by 3-5 times, enhances corrosion resistance, and extends service life.
   Basic Protection: Sandblasting removes scale, and an anti-rust primer is applied, suitable for long-term storage and marine transportation protection.

1. High Load Capacity and High Precision
   Superior Load-Bearing Capacity: Q355 steel material + reinforced rib design, uniform load capacity ≥15 tons, concentrated load capacity ≥5 tons, meeting the welding needs of extra-large workpieces.
   High-Precision Positioning: D28 hole system positioning accuracy ±0.05mm, flatness reaching Grade 0/1, ensuring dimensional consistency and accuracy of welded workpieces.
2. Outstanding Flexible Combination Capabilities
   Rapid Fixture Setup: Compatible with D28 series positioning pins, clamps, support columns, and other accessories, reducing fixture setup time by more than 60%, suitable for multi-variety, small-batch production of heavy workpieces.
   Multi-Unit Splicing and Expansion: Connection holes are reserved on all four sides, allowing for quick splicing into larger work surfaces (e.g., 4000mm×4000mm, 8000mm×2000mm), adapting to different workpiece specifications.
3. Strong Durability and Adaptability
   Material Advantages: Q355 steel has good low-temperature impact toughness, suitable for outdoor and heavy-duty working conditions, and has stronger deformation resistance and corrosion resistance than ordinary carbon steel.
   Automation Compatibility: Compatible with robotic welding and automated clamping systems, supporting flexible production line integration, improving welding efficiency and quality stability.
4. Cost and Efficiency Optimization
   Reusable: Flexible tooling can be repeatedly disassembled and combined, reducing the cost of dedicated tooling and lowering production costs by more than 30%.
   Shorter Cycle Time: Rapid positioning and clamping reduce workpiece alignment and adjustment time, shortening the welding cycle by 40% and improving production line efficiency.

1. Standard Packaging
   Inner packaging: The tabletop is wrapped with PE waterproof film + EPE foam corner protectors (8 pieces, protecting the corners) + thickened bubble wrap (≥0.1mm); the sides of the table body are wrapped with non-woven fabric, and key stress points are fixed with foam blocks.
   Outer packaging: Five-layer corrugated cardboard box (B flute, burst strength ≥1200kPa), with EPE foam filling the gaps inside the box, and reinforced with cross-shaped strapping tape on the outside; alternatively, fumigated solid wood pallets + stretch film + strapping tape packaging can be used, suitable for sea and land transportation.
   Packaging dimensions: 4200mm×2200mm×300mm (including packaging), gross weight per unit approximately 1700kg.
2. Transportation Suitability
   Sea freight: Suitable for 40-foot high cube containers, 2-3 units per container (adjustable depending on stacking method), space utilization rate ≥85%.
   Land transportation: Suitable for flatbed truck transportation, each unit needs to be secured to prevent tilting and collision.
   Labeling requirements: The outer box should be marked with information such as “D28 Series 3D Welding Table”, “Model: LMR-D28-4020-Q355”, “G.W.: 1700kg”, “N.W.: 1600kg”, “MADE IN CHINA”, “CE”, “Keep Dry”, “Do Not Drop”, “This Side Up”, etc.

1. Warranty Period
   The entire machine is covered by a 12-month warranty (starting from the shipping date).  During the warranty period, free repair or replacement of parts will be provided for structural deformation, wear of positioning holes, and other issues not caused by human error.
2. Repair and Maintenance
   Lifetime repair services are provided. After the warranty period, a fee will be charged for parts and labor. Regular maintenance guidance is provided, including surface cleaning, rust prevention, and positioning hole maintenance.
3. Parts Supply
   We provide a long-term supply of D28 series positioning pins, fixtures, support columns, and other parts, ensuring compatibility and timely availability to meet our customers' long-term production needs.

WUXI LEMAR MACHINERY EQUIPMENTS CO.,LTD has 16 years of experience in manufacturing welding tables.  With a 10,000 square meter production base and a professional R&D and production team, our annual production capacity exceeds 10,000 units. All products are made from high-quality Q235 and Q355 steel, undergoing rigorous quality control and precision machining to achieve an accuracy of ±0.05mm.  With a maximum load capacity of 15 tons, our products offer both stability and durability and are exported to over 50 countries worldwide.