Industrial Grade D28 Welding Fixture Table with 28mm Holes

The Industrial Grade D28 Welding Fixture Table with 28mm Holes is a universal 3D flexible welding bench for industrial batch welding and inspection. Equipped with standard 28mm locating holes on all five working faces, it supports multi-angle clamping of large workpieces. With high-precision machining, strong load-bearing capacity and wear-resistant nitrided surface treatment, this D28 fixture table matches global standard D28 clamps perfectly. Multiple sizes and materials available, ideal for heavy steel frame, vehicle chassis and robotic welding workstation use.
Industrial Grade Standard Definition
Our table belongs to heavy industrial grade rather than light workshop benches:
- Thickened box rib reinforced structure, heavy load up to 5 tons per square meter
- Double stress relief treatment to eliminate internal stress permanently
- Full 5-axis CNC precision machining with strict geometric tolerance control
- QPQ salt bath nitriding hardening treatment for wear & spatter resistance
- Complete CE mechanical safety certification, meets EU factory production standards
- Pass full coordinate measuring machine inspection before delivery with official test reports
Core Technical Specifications
| Specification | Value |
|---|
| Hole Diameter | φ28mm (H7 precision tolerance: +0.065 ~ +0.149mm) |
| Grid Pitch | Standard 100mm × 100mm |
| Hole Center Deviation | ≤ ±0.03mm |
| Diagonal Tolerance | ≤ 0.05mm per meter |
| 5-sided machining | Top + 4 vertical sides all with D28 locating holes |
| Tabletop Flatness | ≤0.1mm / 1000mm (Precision robot version: ≤0.05mm / 1000mm) |
| Vertical Side Perpendicularity | ≤0.05mm / 200mm |
| Whole Plate Parallelism | ≤0.08mm |
Key Advantages

- 3D All-Side Clamping, High Production Efficiency: Five faces with D28 holes enable horizontal, vertical & angled clamping. Complete framing, welding & inspection in one single setup, no repeated workpiece flipping, cutting working hours by over 60%.
- Universal Modular Fixturing, Cut Tooling Cost by 70%: One welding table matches dozens of workpieces with interchangeable D28 clamps, positioning pins, angle blocks & supports. No need to manufacture dedicated fixed jigs for new products, save material, labor and storage space.
- Stable Precision & Ultra-Long Service Life: Double stress relief eliminates deformation risk. HT300 cast iron features natural shock absorption and low thermal expansion. QPQ nitrided tables maintain original flatness for 8-12 years under normal heavy industrial operation.
- Fully Interchangeable with Global D28 Standard Parts: 100% consistent international D28 hole standard, perfectly compatible with Siegmund, Demmeler and all mainstream brand D28 fixtures worldwide, customers can reuse existing clamping accessories.
- Multi-Scenario Multi-Process Integrated Platform: Not only for MIG/MAG, TIG, MMA welding, but also serves as measuring inspection bench, prototype assembly table and robot base datum platform, one machine covers multiple workshop procedures.
Matching Supporting System
1. Support Frame Options
- Fixed heavy-duty leg: Height adjustable, static heavy load production line
- Mobile caster stand: With brake wheels, only for empty table transfer
- Hydraulic lifting bracket: Custom for automated assembly lines
- Robot dedicated fixed base: Stable mounting for six-axis welding robots
2. Full Range D28 Fixture Kits (Optional Packages)
- Locating Parts: Straight pins, expansion pins, stepped pins, extended locating pins
- Clamping Parts: Quick spiral clamps, eccentric fast fixtures, vertical/side jacking bolts
- Support Parts: Step blocks, telescopic support posts, V-blocks for pipe welding
- Angle Positioning Parts: 90° angle blocks, 45°/60° dividing blocks, L-shaped stoppers
- Splicing Parts: Extension connecting pins, docking pressing blocks for large combined work surface
- Measuring Auxiliaries: Reference scale strips, height calibration blocks
- Package sets available: 32pcs / 55pcs / 79pcs / 105pcs full fixture kits
Customization Service
- Size Custom: Standard stock sizes or non-standard oversized spliced tabletops
- Structure Custom: Extra thick tabletop for 10-15 ton super heavy load, partial dense holes, reserved robot mounting holes
- Surface Custom: Choose raw cast or QPQ nitriding finish
- OEM Service: Laser engrave customer brand logo on tabletop, custom color carton packaging, customized fixture package quantity
- Document Custom: English operation manual, tailored inspection certificates for different countries
FAQ
Are your D28 holes compatible with European Siegmund fixtures?
Yes. Our 28mm hole with 100×100mm grid follows global unified D28 standard, fully interchangeable with all international D28 series clamps.
What is the difference between raw cast and QPQ nitrided surface?
Raw cast surface is low-cost without wear-resistant hardening layer. QPQ nitrided surface resists welding spatter, rust and abrasion, service life triple longer, highly recommended for export orders.
Can I get CE certificate for EU customs clearance?
All our industrial D28 welding tables are equipped with official CE mechanical safety documents, supporting smooth customs clearance in all EU countries.
What is the lead time for orders?
Standard size tables have stock, ship out within 7-15 working days. Custom non-standard sizes take 15-30 working days.
Will the welding table lose flatness after years of heavy load?
We apply double stress relief + thick reinforced rib design. After 5 years normal heavy-duty use, overall flatness deviation stays within 0.02mm.
Ready to upgrade your workshop with our Industrial Grade D28 Welding Fixture Table with 28mm Holes?
Whether you need standard size stock tables, customized oversized platforms or complete matched fixture kits, our professional engineering team can provide free layout solutions based on your workpiece drawings and production demands.
Send your specifications, workshop layout or project requirements via Email or WhatsApp now, we will reply with detailed quotation and technical drawings within 24 hours.