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D28 3D Welding Table with CNC Machined Top for Flatness
Our D28 3D Welding Table with CNC Machined Top for Flatness is a heavy-duty 3D modular welding bench built with fully CNC machined surfaces for superior flatness control. Offered in HT300 cast iron or wear-resistant nitrided S355 steel, it adopts a universal Φ28 100×100mm hole system for full 3-sided clamping.
Compatible with all D28 clamping kits, it speeds up product switching and reduces waste in metal fabrication. Ideal for vehicle frames, engineering machinery, steel structures and robotic welding cells, various ready sizes and custom dimensions are supported with global export packaging.
Standard Size Specification Table
Table Size (L×W, mm)
Side Height
Panel Thickness
Standard Hole System
1000 × 800
200mm
25mm
Φ28mm H7 precision holes
1200 × 1000
200mm
25mm
Φ28mm H7 precision holes
1500 × 1000
200mm
25mm
Φ28mm H7 precision holes
2000 × 1000
200mm
25mm
Φ28mm H7 precision holes
2400 × 1200
200mm
25mm
Φ28mm H7 precision holes
3000 × 1500
200mm
25mm
Φ28mm H7 precision holes
4000 × 2000
200mm
25mm
Φ28mm H7 precision holes
CNC Integral Machining
All our welding tables are processed using large-scale gantry CNC machining centers. A single-setup process handles the milling of the top surface and all four sides, thereby eliminating machining errors caused by multiple re-clamping operations.
Rough milling: Removes casting or welding scale, leaving a 0.3mm allowance for finishing.
Semi-finish milling: Uniformly calibrates the overall datum to ensure consistent height and perpendicularity across all five faces.
Precision boring: All Φ28 positioning holes are bored simultaneously; hole diameter tolerance is +0.065 to +0.149mm, with center coordinate error ≤±0.03mm.
Precision face milling: Final milling ensures flatness ≤0.1mm/1000mm (Grade 1 standard); ultra-high precision customization can achieve 0.05mm/m (Grade 0, robot-grade).
Edge chamfering & scale engraving: Millimeter grid scales are etched onto the four edges of the table surface to facilitate quick measurement and positioning.
Factory Quality Inspection Standards
Each welding table ships with a printed quality inspection report; inspection tools include granite straightedges, dial indicators, CMMs (Coordinate Measuring Machines), and squareness testers.
Hole spacing accuracy: Overall error for the 100×100 grid is within ±0.05mm.
Five-face squareness: Perpendicularity between side faces and the tabletop is ≤ 0.1mm/200mm.
Hole diameter and depth are uniformly inspected; all locating pins insert and remove smoothly without binding.
Spot checks performed on nitriding/cast iron hardness; wear resistance tested against weld spatter and burn marks.
Static load-bearing test conducted on the entire unit; no permanent deformation observed after 24 hours of pressurization.
Global Warranty Policy
Two-year warranty on the entire machine (includes free replacement or repair for issues regarding table machining precision, housing structure, or weld cracking on the legs)
Six-month warranty on consumable parts (hold-down clamps, locking pins)
Online technical support for overseas customers, including English manuals for installation, leveling, and maintenance
Choose the D28 3D Welding Table with CNC Machined Top for Flatness for stable, high-precision welding production.
Contact us to get customized specs, full accessories list and best factory price!
