3D Welding Fixture U Square Box
Application:Welding&Assemble
Process:CNC Machining
Surface treatment:Normal/Nitrided
Type:3D
Brand:Lemar
product introduction
3D welding fixture U square box
Working face: 5 high-precision machining faces (bottom, two side elevations, front end face, rear end face)
Hole system: All working surfaces are equipped with standard positioning holes (D28 series: Φ 28mm/100mm spacing; D16 series: Φ 16mm/50mm spacing)
Material: Q355/BHS steel or HT300 cast iron, hardened by quenching, nitriding, etc., wear-resistant, anti sticking welding slag, non deformed
Accuracy: Flatness, verticality, hole position accuracy * * ≤ 0.05mm * *, ensuring precise repeat positioning
For more detailed information, please contact-Amy
Product Specifications
Basic Info
Product name：3D Flexible Welding Fixture U‑shaped Square Box / U Square Box
System：D16 & D28 3D welding table system
Material：High‑strength cast iron HT300 / Q355 steel
Surface treatment：Nitriding (Fe₃N / Fe₄N), black oxide, or phosphating
Positioning accuracy：±0.05 mm
Hole pitch：
D16 system：50 mm × 50 mm
D28 system：100 mm × 100 mm
Standard Sizes
| D28 System(Φ28 mm hole) | D16 System(Φ16 mm hole) |
| U‑Box 200×100×100 mm | U‑Box 150×50×50 mm |
| U‑Box 300×100×100 mm | U‑Box 200×50×50 mm |
| U‑Box 300×150×150 mm |
U‑Box 300×100×100 mm |
| U‑Box 400×200×200 mm |
U‑Box 400×100×100 mm |
| U‑Box 500×200×200 mm |
U‑Box 500×100×100 mm |
| U‑Box 500×300×300 mm | -- |
| U‑Box 600×300×300 mm | -- |
Typical application scenarios
Construction machinery/steel structure: three-dimensional assembly and welding of large frames, bases, and trusses
Automotive/Rail Transit: Flexible Tooling for Body Skeleton, Chassis, and Carriage
Sheet metal/chassis: quick clamping of cabinets, distribution boxes, and metal cabinets
Robot welding: Multi layer and multi-faceted positioning, combined with robot workstations to achieve automation
Small batch/multi variety: quick changeover, replacing specialized fixtures, reducing costs and increasing efficiency
Advantages of use
3D welding fixture U square box
- Flexible universal: a set of multi-purpose, suitable for over 90% of structural components
- Efficient and fast: Complete tooling construction within 5 minutes, increase clamping efficiency by 60%+
- High precision stability: hole system positioning+rigid structure, small welding deformation, high consistency
- Long lifespan: hardened treatment+all steel structure, durable for 10 years+, almost maintenance free
- Low cost: reduce the investment in specialized fixtures and shorten the production preparation cycle
Core factory advantages
Our unique advantages
Modular clamping system, globally compatible
- Complete set of D16/D28 standard accessories: locating pins, clamping devices, square boxes, angle rulers, etc.
- 100% compatible with mainstream European brands, allowing customers to freely expand upon their options.
- Quick clamping reduces changeover time by 50%.
High cost-performance ratio, 30%–50% cheaper than European brands.
- Equal precision and quality, more competitive pricing
- Reduce intermediaries, direct factory supply to overseas customers
- Long-term partners enjoy bulk discounts and customized solutions
Company profile
LEMAR MACHINERY
Starting locally and expanding to serve welding fixture partners in over 30 countries worldwide, this is our growth story:
2005 🏭 Founding Vision: Rooted in China, dedicated to welding equipment R&D;
2007 🌍 Going Global: Initiating a globalization strategy and upgrading products to international standards;
2008 ⚙️ Comprehensive Upgrades: Added 3D welding platforms and other production lines, transitioning into a comprehensive solution provider;
2015 ✅ Quality Certification: Obtained CE/GS certifications and entered the high-end European and American markets;
Today 🌟, we are present worldwide, serving high-end manufacturing sectors such as automobiles, wind power, and shipbuilding, earning the trust of global clients with our expertise.
Certificate of Product Quality
Advantages of foreign trade services
we are here for you
WUXI LEMAR MACHINERY EQUIPMENTS CO.,LTD
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