LBR-4020 Mixer Arm - Fatigue-Resistant High-Chromium Alloy Component

Engineered for the LBR-4020 series asphalt batching plants, this fatigue-resistant mixer arm is designed to withstand extreme cyclic loads and abrasive conditions in continuous hot mix production. Manufactured under ISO 9001-certified processes, each arm is precision-cast using advanced lost-foam casting (EPC) and vertical flaskless molding technologies. This integrated approach achieves a remarkable material density of 99.8%, eliminating micro-porosity and ensuring structural integrity under heavy operational stress, which directly contributes to a service life extension of over 50% compared to conventional arms.

The arm is crafted from a proprietary high-chromium alloy with a chromium content of 27-31%, enhanced with strategic additions of molybdenum and nickel. This specific composition, refined in our medium-frequency induction furnaces, creates a uniform carbide network within a robust metallographic structure, yielding an optimized surface hardness of 57-63 HRC. Independent tests verify these arms deliver a tensile strength of 485 N/mm² and an impact toughness of ≥8.5 J/cm², ensuring reliable performance under severe impact loads.

Our digital energy management system monitors the entire production process, guaranteeing dimensional accuracy to within ±0.15mm for perfect compatibility with LBR-4020 mixers and facilitating seamless installation. The specialized reinforcement design at high-stress points increases the flexural strength to 650 N/mm², preventing deformation under maximum load. Backed by our two decades of metallurgical expertise and comprehensive technical support, these mixer arms are the definitive solution for asphalt plants aiming to maximize operational uptime, reduce maintenance frequency, and lower the total cost of ownership.

• • Advanced Composite Structure: The high-chromium alloy (28-32% Cr) with molybdenum and vanadium additives ensures a hardness of 58-64 HRC, offering a balanced resistance to both severe abrasion and impact forces in asphalt mixing.

  • Precision Casting Technology: Our lost-foam casting (EPC) and vertical flaskless molding lines achieve a material density of 99.8%, eliminating defects and guaranteeing structural integrity for a longer operational lifespan.
  • Proven Extended Service Life: Independently verified to handle over 300,000 tons of asphalt mixing, providing up to a 50% longer service life compared to standard liners, which reduces replacement frequency and downtime.

 

• • Optimized Thermal Stability: The refined metallographic structure maintains dimensional stability and mechanical properties under continuous high-temperature operation, resisting deformation and thermal fatigue.

  • Anti-Adhesion Surface Design: The proprietary wave-pattern surface effectively reduces asphalt material buildup by over 60%, ensuring consistent mixing efficiency and reducing cleaning effort.

  • Comprehensive Quality Assurance: Manufactured under ISO 9001 certified processes with complete material traceability, supported by technical data sheets and after-sales service.

1、Vertical Flaskless Molding Line: Enables high-speed, large-batch production with minimal dimensional variance.

1.Q: Could you introduce your company’s business nature and production qualifications?
A: A: We are a professional manufacturer specializing in high-wear-resistant alloy components. Our in-house casting and machining facilities ensure full control over quality, cost, and lead time.

2.Q: How can I place an order?

A: Simply share your requirements via email or through our online system. We’ll promptly prepare a proforma invoice (PI) with detailed pricing and delivery terms for your confirmation.

3.Q: What core material systems do you utilize?
A: We employ engineered materials such as high-chromium cast iron, ductile cast iron, cast steel, and alloy steel. Material selection is scientifically optimized based on specific operational conditions and performance requirements.

4.Q: What payment methods do you support?
A: We accept international trade settlement methods including T/T and L/C. Flexible payment terms can be negotiated for long-term strategic partners.

5.Q: Do you offer customized branding services?
A: Yes, we provide end-to-end customization solutions covering industrial design, mold development, and product marking.

6.Q: How does your quality assurance system operate?
A: Our facility features professional-grade inspection equipment and a three-stage verification protocol: Incoming material inspection; Batch-specific process quality validation; Pre-shipment certification.