Fully Precision Machined Flat D28 Welding Table
Fully Precision Machined Flat D28 Welding Table is a professional-grade 5-sided CNC machined 3D modular welding table built for high-precision metal fabrication and industrial welding operations. Featuring a standard D28 (Φ28mm) 100×100mm grid system and ultra-flat machined surface, this nitrided welding table delivers exceptional dimensional accuracy, stable load-bearing capacity and long-lasting wear resistance.
Engineered to replace inefficient custom jigs and ordinary welding worktables, our precision D28 welding platform supports flexible 3D positioning, multi-station splicing and full modular fixture compatibility, serving robotic welding lines, heavy structural welding, mechanical assembly and precision quality inspection for global industrial manufacturers.
Product Technical Specifications
Standard Available Sizes
Custom OEM sizes supported
- 1000×1000mm
- 1200×1600mm
- 1500×2000mm
- 2000×3000mm
- 2000×4000mm
Max single piece size: 4000mm, unlimited splicing extension
Core Precision Data
| Surface Flatness |
0.02-0.1mm per 1000mm |
| Hole Diameter |
D28 (Φ28mm) |
| Grid Pitch |
100×100mm |
| Hole Position Tolerance |
±0.03mm |
| Verticality of Side Faces |
≤0.1mm/200mm |
| Surface Hardness after Nitriding |
HV480-800 |
Production Craft Introduction
Step 1: Stress Relief Treatment
Cast iron blanks undergo 20+ days natural aging; steel plate bodies go through high-temperature tempering to eliminate internal stress, avoid long-term natural deformation after delivery.
Step 2: Full 5-Sided CNC Rough & Finish Milling
One-time clamping complete five-face processing to guarantee consistent vertical benchmark, different from cheap tables only milled on top surface.
Step 3: CNC Precision Boring for D28 Holes
Uniform digital boring, smooth hole inner wall with chamfer, pins and bolts plug smoothly without jamming.
Step 4: Low-Temperature Plasma Nitriding
No dimensional distortion, form dense wear-resistant protective layer on the whole table surface.
Step 5: Full Precision Inspection
3D coordinate tester detects flatness, hole spacing and verticality, qualified products with official inspection report.
Advantages vs Ordinary Welding Tables
| Feature |
Our D28 Welding Table |
Ordinary Tables |
| Precision |
Full 5-face CNC milling |
Simple drilling only |
| Surface Flatness |
0.02mm/m |
0.5-1mm/m error |
| Surface Treatment |
Nitrided wear-resistant layer |
Thin paint, easy to rust and stick spatter |
| Stability |
Stress relief process |
Raw blank direct processing |
| Hole Tolerance |
±0.03mm |
Over ±0.1mm error |
| Total Cost |
Higher one-time investment, lower long-term costs |
Higher scrap rate and custom tooling expense |
Frequently Asked Questions
Q1: Can I splice multiple D28 welding tables together?
Yes. Our D28 platform adopts unified 100×100 grid standard. Splicing pins and locking blocks are available to connect multiple tables to form ultra-large working surface.
Q2: Does the nitrided layer wear off easily?
Plasma nitriding forms a metallurgical bonding hard layer, not surface coating. It is scratch-resistant and anti-spatter, keep precision for 5-8 years under normal workshop maintenance.
Q3: Can you customize non-standard sizes or special thickness?
We support full OEM & ODM customization, including custom length & width, thickened tabletop, double grid holes, customized fixture sets and laser customer logo engraving.
Q4: What certificates can you provide for customs clearance?
CE certificate, material spectrum test report, nitriding hardness report, flatness inspection certificate, commercial invoice and packing list for FOB/CIF/DDP shipment.
Q5: What's your delivery time?
Standard in-stock sizes: 7-15 working days. Custom non-standard models: 15-25 working days. Bulk full container orders support priority production.
Get Custom Quote for Your D28 Precision Welding Table
We provide one-stop solution including customized table sizes, complete fixture packages and matched support frames.
Send us your workshop size, load demand and workpiece type, our engineer will recommend the most cost-effective configuration for you.
