Qingdao Hailong Machinery Technology Co., Ltd. is one of the leading manufacturers and suppliers of truck frame crossbeams in China, featured by quality products and good service. Welcome to buy durable truck frame crossbeams made in China here and get pricelist from our factory. Also, customized service is available.
Core Product Features
High-strength Materials & Heavy-load Adaptation
Optional high-strength carbon steel (Q345B/Q355B), alloy structural steel (20MnTiB/35CrMo), lightweight aluminum alloy (6061-T6) to meet different load requirements. Carbon steel crossbeams have tensile strength ≥355MPa and yield strength ≥315MPa, suitable for light/medium truck regular load; alloy structural steel crossbeams have tensile strength ≥700MPa and yield strength ≥550MPa, suitable for heavy truck 15-50 ton heavy-load scenarios; aluminum alloy crossbeams reduce weight by 30%-40%, suitable for new energy commercial vehicles, improving endurance capacity.
Structural Optimization & Excellent Rigidity
Through finite element analysis and mechanical simulation design, adopt channel/I-shaped/box-section structure + integrated reinforcing rib layout, torsional rigidity increased by 45%, bending strength over 450MPa; can effectively connect left and right longitudinal beams, disperse local carriage load, inhibit frame deformation, and ensure overall frame stability during vehicle driving.
Precision Manufacturing & Accurate Adaptation
Adopt CNC stamping, bending, robotic welding, forging and other processes, combined with 3D scanning modeling and CAD/CAM optimization, dimensional accuracy up to ±0.2mm, mounting hole error ≤0.3mm; perfectly fit with frame longitudinal beams, carriage floor and suspension supports, compatible with mainstream commercial vehicle brands such as Dongfeng, Jiefang, Foton, Sinotruk, Shaanxi Auto, directly assembled without modification.
Weather-resistant & Durable Quality
The surface is treated with multiple protections, carbon steel crossbeams adopt pickling phosphating + electrophoresis + spraying triple coating, no rust after 1200 hours of salt spray test; alloy structural steel crossbeams undergo quenching and tempering heat treatment + cathodic electrophoresis, double improvement of corrosion resistance and fatigue resistance; aluminum alloy crossbeams are anodized, film thickness ≥12μm, significantly optimized weather resistance; all crossbeams pass 10⁶ fatigue tests and high-low temperature cycle tests (-40℃~80℃), service life up to more than 15 years.
Full-scenario Adaptation & Function Expansion
Cover full series of light trucks (1-5 tons), medium trucks (5-15 tons), heavy trucks (15-50 tons), including core types such as channel crossbeams, I-shaped crossbeams, box-section crossbeams, through-type crossbeams, reinforced crossbeams; can customize extended/shortened dimensions, thickened flanges, integrated fuel tank installation positions, air reservoir brackets, wire harness fixing seats and other functions to meet the personalized needs of special vehicles.
Core Process Advantages
Precision Manufacturing Technology
Carbon steel crossbeams adopt CNC stamping + robotic welding process, welds are full and defect-free, welding strength reaches more than 98% of base metal; alloy structural steel crossbeams adopt hot rolling forming + CNC finishing, high dimensional accuracy and strong structural rigidity; aluminum alloy crossbeams adopt extrusion molding + CNC milling, balancing lightweight and strength, surface smooth and burr-free.
Surface Treatment Process
Carbon steel crossbeams go through five-step process of degreasing → pickling → phosphating → electrophoresis → spraying, coating adhesion reaches level 1 (cross-cut method), hardness ≥2H, scratch-resistant and anti-aging; alloy steel crossbeams adopt phosphating + cathodic electrophoresis + topcoat triple treatment, film thickness ≥70μm, significantly improved corrosion resistance; aluminum alloy crossbeams adopt hard anodization, wear resistance increased by 50%, suitable for humid and salt alkali environments.
Full-process Quality Control
Raw materials undergo material spectral analysis, tensile strength test, impact test and hardness test; the production process real-time monitors dimensional accuracy, welding quality and structural rigidity; finished products pass static load test, dynamic fatigue test, salt spray corrosion test and bending deformation test. Complete test reports are provided for each batch with traceable quality.

Application Scenarios
Ordinary Freight Trucks
Long-distance trunk line transportation of light/medium trucks, suitable for regular cargo transportation such as general goods, building materials and agricultural products, strengthening frame connection rigidity and improving driving stability.
Heavy-duty Freight Trucks
Long-distance heavy-load transportation of heavy trucks, suitable for bulk cargo such as coal, steel and containers, dispersing heavy-load pressure and avoiding local stress concentration of frame longitudinal beams.
Engineering/Mining Trucks
Special engineering vehicles such as mining trucks, muck trucks and mixer trucks, adapting to rough road conditions and frequent bumping scenarios, resisting impact load and protecting frame structure.
Special-purpose Trucks
Special vehicles such as cold chain trucks, RVs and dangerous goods transport vehicles, customizable integrated functions, adapting to special equipment installation and load distribution needs.
New Energy Commercial Vehicles
Special crossbeams for pure electric/hybrid trucks, lightweight design reducing energy consumption, integrating battery pack installation brackets, adapting to new energy chassis layout.

Typical Application Cases
Heavy Truck Heavy-load Crossbeam
Customized 40-ton class frame crossbeam for a well-known heavy truck enterprise, adopting 20MnTiB alloy structural steel, box-section design, torsional rigidity increased by 50%, passing 10⁶ fatigue tests, suitable for container transportation dedicated lines, batch supporting more than 450,000 units, market failure rate less than 0.06%.
Engineering Muck Truck Crossbeam
Supplied special reinforced crossbeams for engineering muck trucks, adopting 35CrMo alloy structural steel, I-shaped section + double reinforcing ribs, compressive strength up to 600MPa, adapting to harsh road conditions of mines and construction sites, service life extended by 3 years compared with ordinary crossbeams, becoming a designated supporting product for many engineering vehicle enterprises.
New Energy Light Truck Crossbeam
Customized lightweight crossbeam for urban distribution new energy light trucks, adopting 6061-T6 aluminum alloy, weight reduction 35%, integrating battery pack installation positions and wire harness fixing grooves, suitable for 3-5 ton cargo transportation, has been batch supporting new energy commercial vehicle models, energy consumption reduced by 8%.

Quality Assurance
Test Reports
Provide raw material quality reports, dimensional accuracy test reports, welding quality test reports, load test reports, fatigue test reports, corrosion test reports, etc.
After-sales Commitment
For non-human damage, carbon steel crossbeams are warranted for 3 years, alloy structural steel crossbeams for 5 years, aluminum alloy crossbeams for 6 years; free replacement for quality problems such as deformation, cracking, rust and loose connections during the warranty period; professional technical team is online 24/7 to provide installation guidance and technical support.
Quality Standards
Strictly follow industry standards such as GB/T 3075 "Metallic Materials - Fatigue Testing - Axial Force Control Method", GB/T 10125 "Artificial Atmosphere Corrosion Testing - Salt Spray Testing", GB/T 3273 "Hot-rolled Steel Plates and Strips for Truck Frames", ISO 6431 "Commercial Vehicles - Chassis Components - Strength Requirements".

Main Technical Specifications (Standard Models)
|
Parameter Type |
Specification Range |
|
Material Type |
Carbon Steel (Q345B/Q355B), Alloy Structural Steel (20MnTiB/35CrMo), Aluminum Alloy (6061-T6) |
|
Core Performance |
Tensile Strength ≥355MPa (Carbon Steel);≥700MPa (Alloy Steel);Bending Strength ≥450MPa |
|
Surface Treatment |
Carbon Steel: Electrophoresis + Spraying;Alloy Steel: Quenching & Tempering + Cathodic Electrophoresis + Topcoat;Aluminum Alloy: Anodization (Film Thickness ≥12μm) |
|
Precision Requirement |
Dimensional Accuracy ±0.2mm;Mounting Hole Error ≤0.3mm;Welding Strength ≥98% of Base Metal |
|
Durability Performance |
No Rust After 1200 Hours Salt Spray Test;Fatigue Life ≥10⁶ Cycles;High and Low Temperature Resistance -40℃~80℃ |
|
Adaptable Vehicles |
Light Trucks (1-5 Tons), Medium Trucks (5-15 Tons), Heavy Trucks (15-50 Tons), New Energy Commercial Vehicles, Special Engineering Vehicles |
|
Crossbeam Types |
Channel, I-shaped, Box-section, Through-type, Reinforced, Lightweight Integrated |
Process

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