Frame Stiffener Plate

Qingdao Hailong Machinery Technology Co., Ltd. is one of the leading manufacturers and suppliers of frame stiffener plate in China, featured by quality products and good service. Welcome to buy durable frame stiffener plate made in China here and get pricelist from our factory. Also, customized service is available.

• High-strength Materials & Enhanced Load-bearing: Optional high-strength carbon steel (Q355B/Q460/Q690), alloy structural steel (20MnTiB/35CrMo), lightweight aluminum alloy (6082-T6) to meet different load reinforcement requirements. Carbon steel plates have tensile strength ≥355MPa and yield strength ≥315MPa, suitable for regular load-bearing reinforcement of light/medium truck frames; alloy structural steel plates have tensile strength ≥700MPa and yield strength ≥550MPa, torsional stiffness ≥3000N·m/rad, suitable for heavy truck 15-50 ton heavy-load scenarios; aluminum alloy plates reduce weight by 35%-40%, balancing strength and fuel economy, suitable for lightweight needs of new energy commercial vehicle frames.​
• Optimized Structure & Torsion/Deformation Resistance: Through finite element analysis and load simulation design, adopt "straight plate/bent plate/reinforcing rib type" integrated structure, plate thickness 5-16mm (20mm thick type customizable), rib plate width 80-300mm, length 300-1500mm; add reinforcing ribs (height 15-30mm) at key stress-bearing parts, deformation resistance ≥400kN/m, which can effectively disperse local stress of the frame, inhibit frame bending and torsional deformation, and improve overall rigidity and service life of the frame.​
• Precision Processing & Accurate Adaptation: Adopt CNC laser cutting, CNC bending, robotic welding and other processes, dimensional accuracy reaches ±0.2mm, hole tolerance ≤0.1mm, fit error with frame longitudinal beams and crossbeams ≤0.3mm; preset bolt mounting holes and welding positioning grooves, supporting three installation methods: bolt connection, welding fixation, bolt + welding composite fixation, which is convenient and firm to install; compatible with frame models of mainstream commercial vehicle brands such as Dongfeng, Jiefang, Foton, Sinotruk, Shaanxi Auto, compatible with various frame structures such as channel beams, I-beams, box beams, realizing seamless fitting and reinforcement.​
• Corrosion Resistance & Long-term Protection: Carbon steel plates undergo five-step surface treatment of degreasing → pickling → phosphating → electrophoresis → spraying, coating thickness ≥80μm, adhesion reaches level 1 (cross-cut method), no rust after 1200 hours of salt spray test, hardness ≥2H; alloy structural steel plates undergo quenching and tempering heat treatment + cathodic electrophoresis + topcoat treatment, film thickness ≥90μm, double improvement of corrosion resistance and aging resistance; aluminum alloy plates undergo anodization treatment, film thickness ≥15μm, wear resistance and weather resistance, suitable for high and low temperature environment of -40℃~80℃, service life ≥10 years.​
• Multi-function Adaptation & Full Scene Coverage: Includes four core types: standard type, thickened reinforced type, torsion-resistant special type, new energy special type; standard type suitable for local reinforcement of regular freight frames, thickened reinforced type (plate thickness 12-20mm) suitable for heavy truck heavy-load frames, torsion-resistant special type (with multiple groups of reinforcing ribs) suitable for engineering/mining rough road conditions, new energy special type integrates battery pack mounting seat and wire harness channel, suitable for new energy commercial vehicle frame layout.​

Core Process Advantages​

 

• Formed by CNC laser cutting in one time, the cut is flat without burrs, dimensional accuracy error ≤0.2mm; bent rib plates are precisely bent by CNC bending machine, angle error ≤0.5°, no wrinkles or cracks; reinforcing ribs and main plates are fixed by robot submerged arc welding/tungsten inert gas welding, welding point spacing ≤20mm, welding strength ≥500N, welding joint strength reaches more than 95% of the base metal, avoiding falling off and deformation.​
• Strengthening Treatment Technology: Quenching and tempering heat treatment of alloy structural steel plates adopts "quenching + high-temperature tempering" process, hardness reaches HB220-260, balancing tensile strength and toughness; carbon steel plate spraying adopts electrostatic powder coating, uniform coating without sagging, excellent scratch and impact resistance; aluminum alloy plates can be customized with black, silver and other colors after anodization, adapting to frame appearance needs.​
• Full-process Quality Control: Raw materials undergo material spectral analysis, tensile strength test, impact test, hardness test; the production process real-time monitors dimensional accuracy, welding quality, reinforcing rib height; finished products pass static load test, dynamic fatigue test, torsional stiffness test, corrosion resistance test, installation adaptability test, complete test reports are provided for each batch, and the quality is traceable.​

Application Scenarios​

 

• Ordinary Freight Trucks: Long-distance trunk line transportation of light/medium trucks, suitable for regular cargo transportation such as general goods and agricultural products, reinforcing key stress-bearing parts such as frame crossbeam-longitudinal beam connections and suspension mounting positions to improve load-bearing stability.​
• Heavy-duty Freight Trucks: Long-distance heavy-load transportation of heavy trucks, suitable for bulk cargo such as coal and steel, thickened reinforcement plates strengthen the load-bearing capacity of key frame parts, avoiding frame deformation and cracking caused by heavy loads.​
• Engineering/Mining Trucks: Special engineering vehicles such as mining trucks, muck trucks and mixer trucks, adapting to rough road conditions and frequent bumping scenarios, torsion-resistant special rib plates inhibit frame torsional deformation, resisting gravel impact and external collision.​
• Special-purpose Trucks: Special vehicles such as cold chain trucks, dangerous goods transport vehicles and RVs, can be customized to integrate equipment mounting seats and protective structures, adapting to the local load increase demand caused by the installation of special equipment.​
• New Energy Commercial Vehicles: Frame reinforcement of pure electric/hybrid trucks, lightweight aluminum alloy rib plates reduce vehicle energy consumption, integrating battery pack mounting seats and charging interface reserved positions, adapting to new energy chassis layout and load distribution.​

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Typical Application Cases

 

• Heavy Truck Heavy-load Frame Reinforcement Plate: Customized 40-ton class frame reinforcement plate for a well-known heavy truck enterprise, adopting 35CrMo alloy structural steel, 16mm plate thickness + triple reinforcing rib design, torsional stiffness up to 3800N·m/rad, passing 10⁶ fatigue tests, suitable for container heavy-load transportation scenarios, batch supporting more than 250,000 units, market failure rate less than 0.04%.​
• Engineering Vehicle Torsion-resistant Reinforcement Plate: Supplied special frame reinforcement plates for mining trucks, adopting Q690 high-strength carbon steel, 18mm plate thickness + wear-resistant coating treatment, adapting to mining rough road conditions, effectively dispersing local frame stress, avoiding torsional deformation, service life extended by 5 years compared with ordinary rib plates, becoming a designated supporting product for many engineering vehicle enterprises.​
• New Energy Light Truck Lightweight Reinforcement Plate: Customized frame reinforcement plate for urban distribution new energy light trucks, adopting 6082-T6 aluminum alloy, weight reduction 38%, integrating battery pack mounting seat and wire harness channel, suitable for 3-5 ton cargo transportation, has been batch supporting new energy commercial vehicle models, energy consumption reduced by 4%.​

Quality Assurance​

 

• Test Reports: Provide raw material quality reports, dimensional accuracy test reports, welding quality test reports, tensile strength test reports, torsional stiffness test reports, corrosion resistance test reports, etc.​
• After-sales Commitment: For non-human damage, carbon steel plates are warranted for 3 years, alloy structural steel plates for 5 years, and aluminum alloy plates for 6 years; free replacement is provided for quality problems such as deformation, cracking, rust and welding detachment during the warranty period; a 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 - Frame Structure Strength Requirements》.​

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