I. Core Brand & Product Positioning
Yantai PHOEE Mining Technology Co., Ltd. operates its exclusive production facility — Laizhou Jingcheng Rubber Co., Ltd. Boasting more than ten years of experience in the rubber products sector, we are a professional enterprise integrating research & development, production and sales. Capitalizing on the industrial advantages of the Jiaodong Peninsula, we focus on technological innovation and quality upgrading of high-end rubber products, with food-grade conveyor belts as our core offering.
As one of the earliest domestic manufacturers of white rubber conveyor belts certified to U.S. FDA food contact standards, we uphold the tenet of Safety, Efficiency and Environmental Protection. We tailor our products to meet the rigorous requirements of food processing industries for conveying equipment, and develop food-grade conveyor belts that excel in material safety and operational adaptability.
Core Product Positioning
Formulated with a scientific combination of natural rubber and styrene-butadiene rubber and manufactured under full-process quality control, our food-grade conveyor belts comply with GB 4806.1-2016 National Food Safety Standard — General Safety Requirements for Food Contact Materials and Articles and the FDA 21 CFR 177 series standards. Applicable to all production stages from raw material conveying to finished product packaging, our products effectively resolve common drawbacks of conventional conveyor belts, including unsafe materials, contamination risks and short service life.
II. Core Materials & Scientific Formulations
2.1 Properties of Core Raw Materials
Natural Rubber (NR)We adopt Grade 3 or Grade 5 standard natural rubber in line with national standards. It delivers exceptional elasticity, flex fatigue resistance and tear strength, featuring low heat build-up and strong autohesion. The material perfectly accommodates high-frequency and long-duration operation on food production lines, preventing permanent deformation and cracking during prolonged use. Its inherent non-toxic property eliminates chemical migration risks from the source, fully satisfying the core safety requirements for food-contact materials.
Styrene-Butadiene Rubber (SBR 1502)We adopt food-grade dedicated SBR 1502. It outperforms natural rubber in chemical resistance, water resistance and electrical insulation. It can effectively resist erosion by acid, alkali solutions, grease and other substances in food processing. Meanwhile, it improves the belt’s aging resistance and processing stability, and reduces production risks such as scorching and over-vulcanization.
2.2 Optimized Formulation Systems
To cater to diverse working conditions in food processing, Jingcheng Rubber has developed three core formulations that strike a perfect balance between safety, wear resistance and cost-effectiveness.
General-Purpose Formula (for most food processing scenarios)NR 60 phr + SBR 20 phr + Butadiene Rubber (BR) 20 phr, together with food-grade sulfur 2.4 phr, composite accelerators 2.1 phr, zinc oxide 6 phr, stearic acid 2.5 phr, food-grade antioxidants 3 phr, silica 45 phr and pharmaceutical-grade calcium carbonate 45 phr.This formula balances elasticity and wear resistance. The belt surface is smooth and non-sticky, making it ideal for conveying baked goods, candies, snacks and other regular food products.
Oil-Resistant Formula (for grease-containing food)NR 50 phr + SBR 30 phr + BR 20 phr. The vulcanization system and oil-resistant additives are optimized to greatly enhance resistance to edible oil and grease sauces, and prevent material swelling and failure. It is widely used for fried food production, oil processing and condiment filling lines.
Cost-Effective Formula (for large-scale general applications)NR 40 phr + SBR 30 phr + BR 30 phr. While retaining full food-grade safety certifications, we optimize the filler system to cut production costs without compromising core performance. It is the preferred choice for bulk procurement by large food manufacturers.
Note: phr = parts per hundred rubber
2.3 Material Safety Management
All rubber compounds are produced with food-grade raw materials. We impose strict control over key safety indicators:
Heavy metal migration: Lead ≤ 0.01 mg/L, Cadmium ≤ 0.005 mg/L
Overall migration: ≤ 10 mg/dm²
Microorganism limit: Coliform bacteria ≤ 3 MPN/100 cm²
All products have passed third-party testing and certification, ensuring no potential safety hazards when in direct contact with food. Only food-grade additives are adopted throughout production. Plasticizers, phthalates and other harmful substances are strictly prohibited, realizing full-chain safety control from raw material incoming to finished product delivery.
III. Product Structure & Process Advantages
3.1 Integrated Multi-Layer Structure
The conveyor belt features an all-in-one structure composed of top cover rubber layer, bottom cover rubber layer, side rubber layers, carcass layer and adhesive layers. The carcass is laminated with multiple layers of food-grade polyester fabric via special adhesive, which greatly boosts tensile strength and tear resistance to adapt to different load requirements.
The thickness of cover rubber is precisely controlled. For standard specifications, the top cover is no less than 3.0 mm and the bottom cover no less than 1.5 mm. The robust rubber layers deliver outstanding wear resistance and impact resistance, extending the overall service life.
3.2 Precision Manufacturing Processes
Rubber CompoundingRaw rubber, minor ingredients, silica and food-grade oil agents are added in strict sequence. The mixture is blended in an internal mixer for 5 to 15 minutes to ensure even dispersion of all components and avoid performance defects caused by uneven compounding.
Calendering & FormingHigh-precision calendering equipment is used to produce cover rubber sheets, which fit closely with the carcass. This guarantees strong adhesion between rubber layers and the carcass, completely preventing delamination and peeling.
VulcanizationVulcanization parameters are accurately controlled: temperature at 149℃ ± 2℃, pressure ranging from 2 MPa to 3 MPa, with precisely regulated holding time. It ensures ideal crosslink density of rubber compounds, combining excellent elasticity, mechanical strength and aging resistance.
Surface TreatmentSpecial finishing technology is applied to achieve ultra-clean surface with no impurities or peculiar odors. The surface roughness (Ra) is controlled below 0.8 μm, which prevents food residue buildup and bacterial growth. The belt is easy to clean, well suited for frequent cleaning operations on food production lines.
IV.Core Performance Parameters
V. Application Solutions for Different Scenarios
5.1 Baked Food Industry
Designed for conveying bread, biscuits, pastries, mooncakes and other baked goods. The belt features high temperature resistance (up to 120℃), anti-sticking property and easy-to-clean performance. Its smooth surface prevents food adhesion and resists mild grease and steam generated during baking. It works reliably for conveying before and after ovens, protecting the appearance and quality of baked products.
5.2 Dairy Industry
Suitable for milk, yogurt, cheese, milk powder and other dairy products. Made of acid-resistant and water-resistant materials, it resists corrosion from acidic ingredients in dairy products. Being non-toxic and odorless, it will not contaminate food and fully complies with hygiene standards for dairy production. It serves the whole workflow of filling, transit and packaging.
5.3 Meat Processing Industry
Ideal for cutting, transit and packaging of pork, beef, mutton, poultry and other meat products. It withstands low temperatures down to -30℃ and repeated water flushing. The antibacterial surface inhibits bacterial reproduction and reduces cross-contamination risks when contacting fresh meat. Its superior flexibility adapts to complex routing of meat processing lines.
5.4 Fruit & Vegetable Processing Industry
Applicable to cleaning, sorting and packaging of fruits and vegetables. It resists water and acid-alkaline cleaning solutions used in production. The smooth surface will not damage fruit and vegetable peels, and avoids mildew caused by residual juice. With good durability and corrosion resistance, it performs steadily in high-frequency and high-humidity working environments.
5.5 Condiment Industry
Perfect for conveying soy sauce, vinegar, sauces, salt, granulated sugar and other condiments. Featuring excellent resistance to oil, acid, alkali and corrosion, it avoids erosion and contamination from condiment ingredients. The non-stick and impermeable surface preserves the purity and quality of condiments during filling and transit.
VI. Specifications & Customization Services
6.1 Standard Specifications
Belt Width: 200 mm, 300 mm, 400 mm, 500 mm, 600 mm, 800 mm, 1000 mm, 1200 mm. Custom extra-wide belts up to 2000 mm are available for large-scale food production lines.
Fabric Plies: 2-ply, 3-ply and 4-ply polyester canvas core with tensile strength from 15 MPa to 25 MPa, applicable for light, medium and heavy load conditions respectively.
Cover Rubber Thickness: Top cover: 3.0 mm ~ 4.5 mm; Bottom cover: 1.5 mm ~ 2.0 mm. Reinforced thickened covers can be customized per working conditions.
Surface Patterns: Smooth surface (for most hygiene-focused scenarios), dimple pattern (high friction to prevent material slipping), herringbone pattern (for centralized material conveying). Custom special patterns are supported.
6.2 Customization Services
Material Customization: Adjust the ratio of natural rubber and SBR as well as additive formulas to meet requirements of oil resistance, high temperature resistance, acid and alkali resistance.
Dimension Customization: Custom extra-wide belts (over 2000 mm), thickened cover rubber and special lengths for non-standard production lines.
Functional Customization: Anti-static, antibacterial, flame-retardant and other functional versions are available for special scenarios, such as anti-static belts for puffed food lines and flame-retardant belts for baking workshops.
Installation Support: We provide one-stop services including belt joint processing, roller matching and on-site commissioning, ensuring perfect compatibility with production lines and cutting down installation costs and lead time.
VII. Quality Assurance & Service System
7.1 Full-Process Quality Control
Raw Material Control: We maintain long-term strategic partnerships with renowned domestic suppliers of natural rubber and SBR. Quality inspection reports are provided for every batch of incoming materials to guarantee purity and safety.
Production Control: We implement the ISO 9001 Quality Management System. Inspection stations are set up at every working procedure including compounding, calendering, vulcanization and final inspection. Professional testing equipment is deployed to conduct full inspection on tensile strength, tear resistance, food safety and other key indicators.
Finished Product Certification: Each batch of products is accompanied by valid FDA and GB 4806.1-2016 certification documents. Third-party re-inspection is acceptable for clients.
7.2 Comprehensive Service System
Technical Consultation: Our professional technical team offers free services including product selection guidance, formula optimization and working condition analysis.
Customized Solutions: We provide one-to-one tailored solutions covering materials, dimensions, patterns and functions according to clients’ production line demands.
After-Sales Support: We adhere to the service policy: Free return within six months, free repair within one year and lifelong service. Our after-sales team responds within 24 hours to resolve on-site problems. We also provide regular maintenance guidance to extend the service life of products.
Logistics: Leveraging the superior geographical location of Laizhou, we cooperate with multiple logistics providers to ensure fast nationwide delivery. International shipping is also supported to serve overseas food manufacturers.
VIII. Brand Strength & Industry Reputation
Laizhou Jingcheng Rubber owns a modern production base covering 48,000 square meters, with fixed assets of over 90 million RMB. The company has more than 450 employees, including over 90 professional technicians. The annual output of rubber products reaches 5,400 tons, with annual sales revenue hitting 150 million RMB, ranking us among the leading manufacturers in the domestic industry.
We hold 33 national invention patents and utility model patents, and have established long-term research cooperation with Central South University, University of Science and Technology Beijing and other prestigious universities to continuously upgrade the technology of food-grade conveyor belts.
Our products are widely used by food manufacturers across the country, covering baking, dairy, meat processing, fruit & vegetable processing, condiment and other fields. With reliable quality, scientific formulations and considerate services, we have earned high recognition from clients and become a core supplier for food safety production. Our products are also exported to Germany, Russia, Brazil and many other countries and regions, winning wide acclaim in the global market.
IX. Conclusion
Food-grade conveyor belts from Yantai PHOEE & Jingcheng Rubber take the scientific blend of natural rubber and styrene-butadiene rubber as the core. Supported by advanced craftsmanship, strict quality control and full-scenario adaptability, we deliver safe, efficient and durable conveying solutions for the food processing industry.
Whether for small food workshops or large-scale production enterprises, standard operating conditions or special working environments, Jingcheng Rubber can provide customized products and services. We safeguard every link of food safety production, and help food enterprises improve production efficiency and guarantee product quality.
Choose PHOEE & Jingcheng Rubber Food-Grade Conveyor Belts — Choose Safety, Quality and Reliability.
