China D28 Two-Dimensional Three-Dimensional Flexible Welding Table Combination Fixture And Accessories Can Be Designed and Customized
D28 2D/3D flexible welding workbench is a modular and high-precision tooling fixture system, mainly used in fields such as welding, assembly, inspection, and machining. Its core feature is the adoption of the D28 standard hole system (28mm hole diameter), providing extremely strong load-bearing capacity and high-precision positioning, which is suitable for the welding and manufacturing of medium and large workpieces.
This product supports two modes: 2D (plane positioning) and 3D (spatial three-dimensional positioning). It can be freely combined and expanded according to requirements, and is compatible with a variety of fixture accessories to achieve highly flexible production.
Product Specifications and Parameters
(1) Basic Dimensions
Standard unit size: 1000mm (length) × 2000mm (width) × 200mm (thickness)
Customizable range: length (500 - 4000mm), width (500 - 3000mm), thickness (100 - 300mm)
Splicing and expansion: Multiple workbenches can be connected by dowel pins and bolts to form a larger working area (such as 2000×4000mm, etc.).
(2) Hole System Standards
D28 series:
Hole diameter: 28mm (standard)
Hole pitch: 100mm × 100mm (internationally common grid layout)
Thread specifications: M16/M20 (optional)
(3) Material and Structure
Matrix material:
High-strength cast iron (HT300/350): Good shock absorption, suitable for high-precision machining.
Alloy steel (Q345/45# steel): Stronger load-bearing capacity, suitable for heavy-duty welding.
| Aspect |
Cast Iron |
Q355 (Structural Steel) |
| Material Category |
Iron-carbon alloy with high carbon content (2-4%), produced by casting. |
Low-alloy high-strength structural steel (GB/T 1591-2018), produced by rolling/forging. |
| Common Types |
Gray Iron, Ductile Iron. |
Replaces the old grade Q345. |
| Key Composition |
High carbon (2-4%), high silicon (1-3%), low manganese (0.1-1%). |
Low carbon (≤0.24%), low silicon (≤0.55%), manganese (1.0-1.6%), with microalloys (Nb, V, Ti). |
| Mechanical Properties |
- Tensile Strength: 120-400 MPa (low) |
- Tensile Strength: ≥355 MPa (actual: 470-630 MPa) |
| - Brittle, low toughness |
- High toughness, impact resistance |
| - High hardness (HB 150-300) |
- Moderate hardness (HB 130-180) |
| - Poor weldability. |
- Excellent weldability. |
| Manufacturing Process |
Casting (molten metal poured into molds). Ideal for complex shapes. |
Hot/cold rolling, forging. Easy to cut, weld, and machine. |
| Applications |
Engine blocks, machine tool bases, pipes, cookware (e.g., cast iron pans). |
Structural frameworks (buildings, bridges), ships, pressure vessels, machinery. |
| Advantages |
Cost-effective, wear-resistant, good vibration damping. |
High strength-to-weight ratio, ductile, suitable for dynamic loads. |
| Limitations |
Brittle, difficult to machine post-casting. |
Requires corrosion protection in harsh environments. |
2D welding table 3D welding table
D16 3D Welding Table
Material:a. HT300 casting, b. Q355 steel plate welding, c. High hardness steel plate welding, d. Stainless steel plate welding.
Aperture:A=φ16.065--φ16.149mm.
Hole spacing:L1=50±0.05mm.
Engraving:Graduation line spacing W1=50±0.05mm.
Flatness:0.1/1000mm.
Verticality:0.05/200mm.
Roughness:Ra3.2.
Load-bearing:Standard type: 2T, frame type: 5T.
Hardness:Material body hardness.
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.
China Lemar 3D/2D Multifunctional Flexible Welding Table
Typical application scenarios
(1) Heavy machinery manufacturing
Welding of construction machinery structural parts (such as excavator booms, crane beams).
Segmented assembly of pressure vessels and wind power tower barrels.
(2) Automotive & Rail transit
Welding fixtures for vehicle bodies, chassis positioning.
Assembly of high - speed rail/subway car frames.
(3) Aerospace
Positioning of aircraft skins and wing ribs.
Welding of rocket fuel tanks.
(4) General industry
Base platform for robot welding workstations.
Reference platform for coordinate measuring machines.
Core functions and features
(1) Modular design
Standardized D28 hole system: All fixtures, locating pins, and support components can be quickly installed and adjusted.
Scalable splicing: Multiple workbenches can be combined to adapt to workpieces of different sizes (such as large - scale steel structures, mechanical frames).
(2) 2D & 3D flexible positioning
2D mode: Suitable for planar welding and sheet metal part positioning.
3D mode: Through accessories such as columns and universal adjusting arms, three - dimensional space positioning can be achieved (such as pipeline welding, assembly of special - shaped parts).
(3) High precision & high rigidity
Planar accuracy: ≤0.05mm/m² (guaranteed by CNC machining)
Repeat positioning accuracy: ±0.02mm (suitable for precision welding)
Anti - deformation ability: Design of ribbed structure to reduce the impact of thermal deformation.
(4) Multifunctional compatibility
Compatible fixture types:
Quick - acting clamps, V - blocks, angle adjusters
Pneumatic/hydraulic fixtures (optional)
Vacuum suction cups (for fixing thin plates)
√ 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.
For more details or custmized welding table ,pls feel free to contact us ,thanks!
Request Custom Quote
Complete the configuration wizard or speak with our sales engineers
Q: What's the lead time for custom configurations?
A: Standard units ship in 3-5 business days. Custom builds require 2-3 weeks for production.
Q: Do you provide on-site installation?
A: Yes, our certified engineers offer global installation and calibration services.
Q: What warranty coverage is included?
A: 1-year limited warranty on mechanical components.
Shipping & Support
✓ FOB/CIF terms available
✓ DDU/DDP shipping to 50+ countries
✓ Trade assurance through PICC/Country bank
Suggestions for Use and Maintenance
Installation:
Ensure the foundation is flat to avoid deformation.
Use dowel pins during splicing to ensure alignment accuracy.
Maintenance:
Regularly clean the welding slag in the holes and apply anti-rust oil.
Check the tightening status of bolts (recommended torque is 50 - 60N·m).
Safety:
The load of heavy workpieces should be evenly distributed.
Avoid long-term local high temperature during welding.
Conclusion
Two-Dimensional Three-Dimensional Flexible Welding Table Combination Fixture And Accessories is a cost-effective tooling solution made in China, suitable for mid-to-high-end welding and assembly requirements. Its modular design, high load-bearing capacity, and customized services give it broad application prospects in fields such as heavy machinery, automotive manufacturing, and aerospace.
Enhance Your Welding Capabilities With Our China D28 Two-Dimensional Three-Dimensional Flexible Welding Table Combination Fixture And Accessories Can Be Designed and Customized !
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