Three Dimensional Cast Iron Work Platform Welding Table is a high-precision, modular welding and assembly workbench. It is made of high-strength cast iron, and the tabletop is covered with standard D28 (28mm) positioning holes, enabling rapid positioning, clamping, and welding in three-dimensional space. The specifications are 2000mm (width) × 3000mm (length), which is suitable for high-precision welding, assembly, and inspection of large workpieces.
Core Features
(1) High-strength Cast Iron Material
HT250 or higher grade cast iron is adopted, which has good rigidity, shock resistance and wear resistance.
After aging treatment, internal stress is eliminated to ensure no deformation during long-term use.
The surface is precisely ground, and the flatness can reach 0.05 - 0.1mm/m² to ensure high-precision positioning.
(2) Modular D28 Hole System Design
The tabletop is covered with 28mm standard holes, and the hole pitch is usually 50mm, 100mm or customized, which is compatible with various fixtures and positioning pins.
It supports positioning at any angle in three-dimensional space and is suitable for complex welding, assembly and inspection requirements.
It can be used in combination with standard fixtures (such as M8/M10/M12 bolt fixtures) to achieve quick clamping.
(3) High Load-bearing Capacity
The static load-bearing capacity can reach 5 - 10 tons/m², which is suitable for welding heavy workpieces.
The structure is stable and has strong impact resistance, and is suitable for industries such as large machinery, automobiles, and aerospace.
(4) Multi-functional Expandability
It can be equipped with various accessories such as fixtures, support columns, angle adjusters, and quick clamps to meet different process requirements.
It is suitable for various processing scenarios such as welding, assembly, inspection, drilling, and milling.

1-side welding tables 5-side welding tables
D28 3D Welding Table
5-side welding tables
Material:a. HT300 casting, b. Q355 steel plate welding, c. High hardness steel plate welding, d. Stainless steel plate welding.
Aperture:A=φ28.065--φ28.149mm.
Hole spacing:L1=100±0.05mm.
Engraving:Graduation line spacing W1=100±0.05mm.
Flatness:0.1/1000mm.
Verticality:0.1/200mm.
Roughness:Ra3.2.
Load-bearing:Standard type: 2T, frame type: 5T.
Hardness:Material body hardness.
Typical application fields of
Three Dimensional Cast Iron Work Platform Welding Table Typical application fields
Automobile manufacturing: Body welding, chassis assembly
Aerospace: Aircraft structural component welding, engine component positioning
Heavy machinery: Construction machinery, ship, steel structure welding
Mold manufacturing: Large mold assembly and adjustment
Scientific research and education: Welding training, precision assembly experiments

(1) Main Advantages
✓ High Precision: Flatness ≤ 0.1mm, ensuring welding and assembly accuracy
✓ Modularity: The D28 hole system is compatible with various fixtures, with strong expandability
✓ High Rigidity: The cast iron material has strong anti-deformation ability, suitable for heavy-duty processing
✓ Long Service Life: Wear-resistant and rust-proof, with a service life of over 10 years
(2) Purchase Recommendations
Confirm whether the hole pitch (50mm/100mm) is in line with your fixture system.
Check whether the surface treatment (galvanizing or spraying) meets the rust prevention requirements.
Consider whether T-slots or additional expansion interfaces (such as pneumatic fixture interfaces) are needed.
Choose Lemarmachine to ensure long-term use support.
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√ Wuxi Lemar Machinery Equipments Co., Ltd. is a high-tech enterprise specializing in automated welding equipment and H-beam equipment. Our company has developed a series of professional equipment such as CNC cutting equipment, Beveling equipment, welding equipment, etc.
√ On the basis of continuously absorbing advanced technologies and processes domestic and abroad,our products are widely used in pressure vessels, petrochemicals, power stations, heavy machinery, ships, steel structure buildings and other industries.Most of the products have reached advanced international levels.
√ Lemar Machinery has won the praise of users with the corporate spirit of "motivational and enterprising, honest and trustworthy", and is wi ling to work hand in hand with friends from all walks of life to realize its vision.
How to use a Three Dimensional Cast Iron Work Platform Welding Table for better and quicker woking?
1.Consider the characteristics of the workpiece: select appropriate platform model according to the size, shape and weight of the workpiece. For example, D16 series platforms are often used for sheet metal and small steel structures, while D28 series platforms are often used for large steel structures and heavy machinery industry.
2.Selecting the Platform Structure: Flexible welding platforms are categorized into three main series based on their structural types: hole system combination fixtures, slot system combination fixtures, and combination punches. The slot system combination fixtures are available in three sizes: 16mm, 12mm, and 8mm, corresponding to large, medium, and small combination fixtures, respectively. Choose the appropriate structural type based on your specific requirements.
3.Select the right material and manufacturing process: Choose a platform produced by a regular manufacturer to ensure that the material meets national standards (such as cast iron HT200-300) and that the manufacturing process is excellent. Pay attention to checking the hardness of the working surface of the platform, which should be HB170-240 and has been properly heat-treated to ensure its stability and durability.
4.Consider the platform's scalability and adaptability: Evaluate whether the platform can be extended by adding support components (such as U-shaped square boxes, L-shaped square boxes, or angle iron supports) to accommodate larger workpieces. Assess whether the platform can be easily assembled and combined according to the shape and size of the workpiece.
Shipping & Support
✓ FOB/CIF terms available
✓ DDU/DDP shipping to 50+ countries
✓ Trade assurance through PICC/Country bank
Three Dimensional Cast Iron Work Platform Welding Table is an ideal choice for large-scale welding, assembly, and inspection, especially suitable for high-precision and heavy workpiece processing. Its modular design, high load-bearing capacity, and long lifespan make it a preferred equipment in industries such as automotive, aerospace, and heavy machinery.
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