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.
Product Core Specifications
| Parameter |
0.03mm Ultra-Precision D28 Welding Table |
Conventional D28 Welding Table |
| Flatness Accuracy |
≤0.03mm/1000mm (00-level) |
≤0.1mm/1000mm (1-level) |
| Hole System Standard |
φ28mm, 100×100mm grid, hole center distance tolerance ±0.03mm |
φ28mm, 100×100mm grid, hole center distance tolerance ±0.05mm |
| Material Options |
Q355B precision steel / HT300 high-strength gray cast iron |
Ordinary steel / HT200 cast iron |
| Stress Relief Process |
Vibration aging + high-temperature annealing (double treatment) |
Single simple stress relief |
| Surface Treatment |
Deep nitriding (0.25-0.35mm nitrided layer) |
Ordinary spray painting |
| Machining Equipment |
5-axis gantry integrated grinding (constant temperature workshop) |
Ordinary CNC milling (segmented processing) |
| Static Load Capacity |
2-10 tons/㎡ |
1-5 tons/㎡ |
| Suitable Scenarios |
Robotic welding, precision batch production, high-precision structural parts |
Manual ordinary heavy welding, rough machining |
How is ultra-high flatness of 0.03 mm achieved?
- 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
Core Product Advantages
Ultra-high positioning accuracy eliminates dimensional deviations in welding
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.
Modular, flexible tooling significantly cuts costs
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.
Five-sided machining for all-around clamping
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.
Nitrided finish ensures long-lasting wear resistance and accuracy
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.
Infinitely expandable through modular connection
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.
Warranty and After-Sales Service System
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.
Value-Added After-Sales Services
- 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
Ready to upgrade your welding station with superior precision? Our D28 Welding Table with 0.03mm Flatness Accuracy effectively reduces rework rates and improves robotic welding consistency.
Feel free to contact us for catalogs, real case videos, factory prices and detailed technical parameters.
We reply to all inquiries promptly and arrange worldwide safe export packaging & delivery.
