• Torres@landu-china.com
  • (+86) 156 6582 8598
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Quality Control and Assurance

At LANDU, quality is the foundation of everything we manufacture.

LANDU's Quality Philosophy

At LANDU, quality is the foundation of everything we manufacture. Our comprehensive quality control and assurance system spans the entire production chain – from rigorous raw material selection through every production stage to final product testing and analysis. This philosophy cultivates a company-wide culture of quality consciousness. Every LANDU employee, from production line workers to senior management, shares the commitment to delivering the best products of uncompromising quality that meet our customers’ most demanding requirements.
With the major strategic integration of a takeover of ZOVAE, an eminent manufacturer of Redispersible Polymer Powder and Specialty Additives in China, LANDU is able to unlock profound synergistic potential for production and technologies. This alliance further improves quality control and assurance in LANDU’s advanced factories, where we deliver high-quality cellulose ether, redispersible polymer powder, and specialty additives for building materials.

Raw Material Quality Control

By integrating supply chain control, digital traceability, and strict testing, LANDU guarantees high-purity, reliable products for superior performance in applications.

Supply Chain Management

LANDU ensures strict control over our raw material supply chain, partnering only with certified and audited suppliers, such as Celanese and Sinope, to guarantee quality, consistency, and sustainability.

Batch Tracking System

To ensure full traceability and accountability, LANDU implements an advanced batch tracking system that monitors raw materials throughout production. Each raw material batch is assigned a unique ID for real-time tracking from receipt to final product.

Incoming Inspection

At LANDU, quality assurance begins before production starts. Our strict incoming inspection protocols ensure that only compliant raw materials enter our manufacturing process through advanced analytical testing to prevent defective materials from impacting production stability.

Advanced Production Facilities

  • LANDU 15,000m² warehouse + An annual 75,000 tons capacity = Quality Consistency
  • LANDU factories are equipped with vertical reactors, making the reaction more complete and the quality more stable compared with horizontal reactors.
  • LANDU adopts an automatic control system in production to reduce manual work, monitoring the whole process to ensure quality stability and consistency.
  • The mixing equipment that most factories opt for is mechanical mixing, while LANDU uses cyclone mixing. Through air stirring, the mixing is more complete, and the quality stability is improved.
  • LANDU uses super-large mixing equipment to ensure that customers receive products for each bag or pallet with consistent viscosity.

Manufacturing Process Control

At LANDU, our precisely controlled manufacturing processes ensure that every batch of cellulose ether additives meets strict specifications and global industry standards.

To maximize consistency and minimize human-induced variability, we operate a fully automated production line integrated with advanced process control systems:

  • 1.Distributed Control System (DCS) – Provides real-time monitoring and adjustment of temperature, pH, reaction time, and viscosity, ensuring optimal conditions throughout production.
  • 2. Reduced Batch-to-Batch Variation – Automated process control significantly decreases deviation, enhancing product uniformity and reliability.
  • 3.Data-Driven Adjustments – Continuous parameter tracking allows for immediate corrections, maintaining compliance with specified tolerances.

Final Product Quality Assurance

Comprehensive QC Testing

  • Performance tests such as particle size distribution & solubility testing
  • Specific test report according to your requirement

Regulatory Adherence & Certifications

  • ISO 9001, ISO 14001, REACH certification
  • Full documentation & batch records for audits

Customer-Centric Quality Assurance

  • Customizable QC reports per client specifications.
  • Technical support & troubleshooting to ensure product suitability.

Contact Us

LANDU is on standby here to help you find the right solution for your needs. Whether you need free consultation, technical guidance, product samples, or logistical support, our team is ready to assist!

Get In Touch Now

E-mail:

Torres@landu-china.com

Telephone:

+86 156 6582 8598

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LANDU-thoughtful-service-torres-tian

Torres Tian

Regional Sales Manager, Europe

Torres brings over 10 years of experience in the chemical and cellulose ether industry, specializing in HPMC applications across the construction, pharmaceuticals, personal care, and food sectors. With a deep understanding of market needs and regulatory standards, he is dedicated to helping customers in Europe find the right HPMC solutions for their unique requirements.

LANDU-Laboratory-technician-Cynthia-Sun

Cynthia Sun

Product and Sample Analyst and Tester

Cynthia combines technical precision with a problem-solving mindset, helping clients resolve challenges and optimize HPMC for their specific needs. She is responsible for quality control, performance testing, and failure analysis of HPMC across multiple industries. Whether you’re testing a new formulation or diagnosing inconsistencies, Cynthia provides data-driven insights for reliable results.

Our team ensures high standard!and flexible solutions for various
customer needs.

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