D28 Welding Table with 0.03mm Flatness Accuracy

Our D28 Welding Table with 0.03mm Flatness Accuracy is an ultra-precision 3D modular fixturing platform built for robotic welding lines and high-tolerance metal fabrication. Unlike standard D28 welding tables with 0.1mm/m flatness, this precision workbench delivers a benchmark flatness tolerance of ≤0.03mm per 1000mm, ensuring consistent dimensional accuracy for batch structural parts.

Manufactured with double stress relief and deep nitrided surface treatment, our 0.03mm flatness D28 welding table features fully 5-sided machined φ28 hole grids, compatible with full D28 modular clamping accessories to cut custom jig costs drastically. Ideal for automotive frames, rail transit components, engineering machinery and precision equipment bases, this heavy-duty D28 welding table maintains stable ultra-flat performance under long-time heavy load and continuous automated welding.

We offer customizable sizes, cast iron/Q355 steel materials and complete tooling sets to match your workshop production demands.

• Dual stress-relief process (vibratory stress relief plus high-temperature annealing) to eliminate subsequent deformation caused by mechanical stress or heat
• Monolithic milling using 5-axis CNC gantry machining—no segmented splicing or assembly
• Precision grinding in a temperature-controlled workshop (±2°C) to prevent dimensional deviations caused by thermal expansion or contraction
• Full-surface inspection of finished parts using CMM (Coordinate Measuring Machine), with individual flatness reports issued for every unit

A flatness of 0.03mm ensures the workpiece sits flush against the datum without warping, guaranteeing consistent dimensions across batches and reducing the need for rework or straightening; ideal for robotic automated welding.

A single platform—combined with positioning pins, quick-action clamps, V-supports, and angle blocks—can handle the clamping of various workpieces, eliminating the need for custom welding jigs; tooling adjustments for product changeovers take just 10 minutes.

Positioning is possible on the top, bottom, sides, and at angles, allowing complex frames, housings, and machine structures to be fully welded in a single clamping setup.

Standard painted surfaces are easily damaged by weld spatter, leading to pitting and a loss of flatness; the nitrided layer offers high-temperature and impact resistance, maintaining the original 0.03mm datum accuracy even after years of use.

Multiple D28 welding tables of identical precision can be joined using positioning pins while maintaining an overall flatness within 0.05mm, making them suitable for processing extra-long or massive structural components.

Main Tabletop Warranty: 12-month full-unit warranty; free repair and re-grinding/calibration provided if the factory-standard flatness precision degrades by more than 0.05mm (excluding damage caused by human-induced impact or high-temperature scorching).

Accessory Warranty: 6-month warranty on wear parts such as locking pins and clamps; replacement parts available at a discount for wear resulting from normal use.

• Remote video guidance for installation, leveling, and tooling configuration
• On-site precision re-verification and tabletop repair services (overseas customers may ship units back for re-grinding)
• Permanent supply of the full range of D28 tooling accessories; no risk of production discontinuation or stock shortages