JINFLEX acid & alkali resistant conveyor belts are used for transporting corrosive materials, widely applied in chemical plants, paper mills, fertilizer plants, mines (acidic ore processing), ports (acidic/alkaline bulk cargo), and electroplating workshops—suitable for conveying sulfuric acid-containing ore, alkaline fertilizer, paper pulp, and chemical sludges.
Our acid & alkali resistant conveyor belts comply with China’s industrial standards (HG4-846, HG/T3714) and international standards, including the United States (RMA), Germany (DIN22131), Japan (JIS6369), Australia (AS1333), and South Africa (SABS).
Product description
Acid & Alkali Resistant Cover Rubber:
Synthetic rubber blend (e.g., chloroprene rubber, EPDM) with low chemical reactivity—volume change ≤10% after 72h immersion in 20% H₂SO₄ or 20% NaOH (25℃).
Carcass:
Multi-ply fabric (EP/NN/CC) with anti-corrosion coating (polyester film), preventing acid/alkali from penetrating and damaging the fiber structure.
Core Rubber:
Acid-alkali resistant core rubber with strong adhesion, ensuring layer bonding strength ≥6.5N/mm even after chemical contact.
Sealed Structure:
Full-edge sealing and cover rubber thickening (top ≥4mm) block acid/alkali from entering the belt interior.
Resists 5%-30% sulfuric acid, hydrochloric acid, and 5%-25% sodium hydroxide, potassium hydroxide; volume change ≤10% and weight change ≤8% after 72h immersion.
EP/NN carcass has tensile strength up to 400N/mm, no strength loss after 30 days of acid/alkali exposure; cover rubber wear rate ≤0.12mm/month.
Works normally at -10℃~80℃, no performance degradation in high-temperature acidic environments (e.g., chemical reactor discharge).
Cover rubber is non-toxic and non-polluting, no heavy metal additives—meeting environmental standards for chemical industry use.
In 20% H₂SO₄ transport scenarios, service life is 2-3x longer than ordinary belts; low replacement frequency reduces downtime.
Special Options: Combined acid-alkali-heat resistance (≤125℃), acid-alkali-oil resistance.
Support small-batch orders with no MOQ:
backed by 20M meters annual capacity, we deliver small batches (e.g., chemical plant trial, acidic ore processing matching) on time.
Offer full customization:
Customize corrosion resistance level (for low/high concentration acid/alkali) and belt structure according to your material’s chemical properties.
Deliver high cost-effectiveness:
National-level laboratory tests verify corrosion resistance; optimized formula reduces costs without compromising performance.
Reference Specification:
Carcass Type | Tensile Strength (N/mm) | Belt Width (mm) | Cover Thickness (mm) | Volume Change (%) | Weight Change (%) | Adhesion Strength (N/mm) |
---|---|---|---|---|---|---|
Top | Bottom | (20% H₂SO₄, 72h) | (20% NaOH, 72h) | |||
CC56/70 | 56/70 | 400-2200 | 3-6 | 2-4 | ≤10 | ≤9 |
EP/NN 100-200 | 100-200 | 400-2200 | 4-8 | 3-6 | ≤9 | ≤8 |
EP/NN 250-400 | 250-400 | 400-2200 | 5-12 | 4-8 | ≤8 | ≤7 |
Acid-Alkali-Heat Type | 100-400 | 400-2200 | 5-12 | 4-8 | ≤8 | ≤7 |
This table is for reference only. Please consult JINFLEX business personnel for details
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