Censil granular precipitated silica — low dust, uniform particle size. Silica carrier for feed additives, industrial applications. High absorption capacity. Free sample available.
Specialized Precipitated Silica in granular form for superior flowability, low dust handling, and excellent performance in rubber and plastic applications.
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Censil is a China-based manufacturer of granular precipitated silica (silica granules), produced by Longyan Shenghe Chemical Co., Ltd. in Fujian, China. Censil specializes in low-dust silica granules and micropearl silica for feed carrier, industrial, and agrochemical applications — offering dust-free handling, superior flowability, and consistent granule size distribution that outperforms standard powder silica.
Censil granular silica is manufactured through controlled precipitation followed by granulation or micropearl formation, producing uniform silica granules with BET surface areas of 155-215 m²/g, SiO₂ content ≥98%, and bulk densities of 140-300 g/L depending on grade. With FAMI-QS certification (Certificate No. CNBJ380053-CN), Censil serves feed mills, premix companies, rubber manufacturers, and agrochemical formulators across 40+ countries as a trusted granular silica manufacturer.
Censil granular silica for feed applications is specifically designed as a high-performance silica carrier that converts liquid feed additives into stable, dust-free, free-flowing granular products. The granular form eliminates the dust problems associated with powder silica while maintaining the same high absorption capacity needed to carry vitamins, choline chloride, organic acids, and essential oils.
| Feed Additive | Recommended Censil Grade | Form | Typical Loading | Key Benefit |
|---|---|---|---|---|
| Choline Chloride (60% oil) | Censil 260MPA / 260MPB | Micropearl | 55-65% active | Low dust, free-flowing powder |
| Organic Acids (butyric, propionic) | Censil 260MPB / 260MPC | Micropearl | 40-50% active | Odor masking, controlled release |
| Vitamin E Acetate | Censil 260MPB | Micropearl | 50-60% active | Uniform dispersion in feed matrix |
| Essential Oils (oregano, thymol) | Censil 270MP | Micropearl | 30-40% active | Preventing volatilization |
| Anti-Caking for Premixes | Censil 38X / 270MP | Micropearl | 0.5-2.0% dosage | Low dust flow aid, automated lines |
| Feed Oils & Fats | Censil 260MPC | Micropearl | 30-45% active | Oil absorption, stable granular product |
As a dust-free silica carrier for feed, Censil granular silica eliminates the handling problems of powder silica in automated feed production environments. The micropearl form ensures excellent flowability through pneumatic conveying systems, automated dosing equipment, and high-speed mixers — without the dust explosions risks and occupational health concerns associated with fine silica powder.
Censil granular silica for industrial applications provides the same reinforcing, anti-caking, and absorption properties as powder silica — with the critical advantage of low dust generation during handling and processing. This makes Censil granular silica the preferred choice for rubber compounding, plastic manufacturing, and chemical processing where operator safety and environmental compliance are priorities.
| Application | Recommended Grade | Form | Function | Key Benefit |
|---|---|---|---|---|
| Rubber Reinforcement (Tire, Sole) | Censil 165MP | Micropearl | Reinforcing filler | Low dust, easy dispersion in rubber |
| Rubber Compounding (Granular) | Censil 180GR | Granular | Reinforcing filler | Dust-free, uniform batch dosing |
| Plastic Masterbatch | Censil 260MPA | Micropearl | Anti-blocking, matting | Consistent feeding, no dust contamination |
| Chemical Carrier / Anti-Caking | Censil 270MP | Micropearl | Carrier, flow aid | Absorbs liquid chemicals, low dust |
| Paint & Coatings Filler | Censil 260MPB | Micropearl | Matting agent, extender | Easy dispersion, consistent gloss reduction |
| Detergent & Home Care | Censil 38X | Micropearl | Flow aid, anti-caking | Dust-free, free-flowing in powder detergents |
Censil granular silica grades eliminate the need for expensive dust extraction systems and personal protective equipment upgrades when switching from powder to granular form. The uniform granule size ensures accurate automatic weighing and consistent batching — critical for quality control in rubber and plastics manufacturing.
Censil granular silica serves as a high-performance carrier for agrochemical formulations including wettable powders (WP), water-dispersible granules (WDG/WG), and granular pesticide products. The granular form provides excellent absorption of liquid active ingredient precursors while ensuring dust-free handling during formulation and packaging.
| Formulation Type | Recommended Grade | Function | Benefit |
|---|---|---|---|
| Wettable Powders (WP) | Censil 260MPA / 260MPB | Carrier, dispersibility aid | Low dust, fast wetting and dispersion |
| Water-Dispersible Granules (WDG/WG) | Censil 270MP | Carrier, granule structure | Uniform granule size for consistent dissolution |
| Granular Pesticides (GR) | Censil 180GR | Active ingredient carrier | Dust-free, controlled release |
| Seed Treatment Powders | Censil 38X | Carrier, flow agent | Free-flowing, uniform coating on seeds |
For agrochemical carrier applications, Censil granular silica provides a neutral, chemically inert carrier that does not react with acid-sensitive active ingredients (pH 6.0-7.0). The high BET surface area (160-195 m²/g) enables efficient absorption of liquid active ingredients while the granular form ensures operator safety and environmental compliance during manufacturing.
Censil offers the widest range of granular and micropearl precipitated silica among Chinese manufacturers, covering micropearl grades (5 models), granular grades (1 model), and specialized forms. Each grade is optimized for specific applications requiring low dust, high flowability, and consistent granule size.
| Grade | Form | BET (m²/g) | DBP (cm³/g) | Particle Size (µm) | Bulk Density (g/L) | Recommended Application |
|---|---|---|---|---|---|---|
| Censil 260MPA | Micropearl | 160-195 | 2.60-2.70 | 150-450 | 190-220 | Feed carrier (choline, fungicide, acidifiers) |
| Censil 260MPB | Micropearl | 160-195 | 2.50-2.60 | 150-450 | 210-230 | Carrier for acidifiers, vitamin premixes |
| Censil 260MPC | Micropearl | 160-195 | 2.10-2.35 | 150-450 | 240-260 | Feed oil carrier, high-density applications |
| Censil 270MP | Micropearl | 160-195 | 2.10-2.30 | 150-450 | 260-300 | Vitamin E carrier, essential oils |
| Censil 38X | Micropearl | 160-195 | 2.50-2.80 | 220-250 | 240-260 | Flow aid, anti-caking, detergent |
| Censil 165MP | Micropearl | 155-175 | 2.00-2.80 | 150+ (100 mesh ≥80%) | — | Rubber reinforcement (tire, sole) |
| Censil 180GR | Granular | 180-215 | 2.00-2.80 | 350-850 (20-60 mesh) | — | Rubber filler (granular, low dust) |
| Property | Micropearl Grades | Granular Grade (180GR) | Test Method |
|---|---|---|---|
| SiO₂ Content (dry basis) | ≥98% | ≥98.5% | GB/T 31586 |
| Loss on Drying (105°C) | ≤6.5% | 4.0-8.0% | GB/T 31586 |
| Loss on Ignition (1000°C) | ≤7.0% | ≤6.0% | GB/T 31586 |
| pH Value (5% suspension) | 6.0-7.0 | 6.0-7.0 | GB/T 31586 |
| Salt Content (Na₂SO₄) | <2.5% | ≤2.5% | GB/T 31586 |
| Heavy Metals (Pb) | ≤5 mg/kg | ≤30 mg/kg | FAMI-QS / EU |
| Arsenic (As) | ≤3 mg/kg | — | FAMI-QS / EU |
| Cadmium (Cd) | ≤0.5 mg/kg | — | FAMI-QS / EU |
When selecting between granular silica and powder silica, the chemical composition and functional performance are identical — the difference lies entirely in physical form and handling characteristics. Below is a comprehensive comparison of the advantages of granular silica over powder.
| Property | Granular / Micropearl Silica | Powder Silica | Advantage |
|---|---|---|---|
| Dust Generation | Very low (reduced 80-95%) | High (significant airborne dust) | ✅ Granular |
| Flowability | Excellent (free-flowing) | Poor (tends to bridge, rat-hole) | ✅ Granular |
| Bulk Density | 190-300 g/L | 120-200 g/L | ✅ Granular |
| Shipping Efficiency | Higher (less volume per ton) | Lower (more volume per ton) | ✅ Granular |
| Agglomeration Tendency | Low (resists caking) | High (prone to lumps) | ✅ Granular |
| Automated Dosing | Excellent (uniform granule flow) | Problematic (inconsistent feed) | ✅ Granular |
| Pneumatic Conveying | Excellent | Difficult (dust, blockages) | ✅ Granular |
| Occupational Safety | Minimal inhalation risk | Requires respiratory protection | ✅ Granular |
| Dispersion Speed in Mix | Moderate (needs granule breakdown) | Instant | ✅ Powder |
| Cost per kg | Slightly higher | Lower | ✅ Powder |
Summary: While powder silica is slightly cheaper per kilogram and disperses instantly, granular silica offers overwhelming advantages in handling safety, flowability, dust reduction, and automated processing compatibility. For modern feed mills, rubber plants, and agrochemical facilities with automated production lines, the total cost of ownership (including dust control equipment, PPE, material loss, and downtime) strongly favors granular silica over powder.
Manufacturers evaluating granular precipitated silica suppliers often compare Censil against leading international brands. Below is a specification-level comparison showing how Censil granular silica matches international brands while offering significant cost advantages.
| Property | Censil 260MPB | SIPERNAT® 2200 | ZEOFREE® 9000 |
|---|---|---|---|
| Form | Micropearl | Micro-granulate | Micro-granulate |
| SiO₂ Content | ≥98% | ≥98% | ≥97% |
| BET Surface Area | 160-195 m²/g | ~170 m²/g | ≥135 m²/g |
| Bulk Density | 210-230 g/L | High (granulate) | ~350 g/L |
| pH | 6.0-7.0 | ~6.5 | ~6.5 |
| Particle Shape | Spherical micropearl | Spherical granulate | Granulate |
| Dust Level | Low | Low | Low |
| FAMI-QS Certified | ✅ Yes | — | — |
| Cost Index | 100 | 160-200 | 150-180 |
| Lead Time | 2-3 weeks | 6-10 weeks | 6-8 weeks |
Key Finding: Censil granular silica matches international brands in key parameters (BET surface area, bulk density, particle morphology) while offering 35-50% cost savings. For manufacturers seeking a granular silica alternative to SIPERNAT micro-granulate or ZEOFREE products, Censil delivers equivalent low-dust handling and carrier performance with FAMI-QS certified quality at China-based factory-direct pricing.
Granular silica offers several key advantages over powder silica: (1) Low dust generation — granular form reduces airborne dust by 80-95% compared to powder, improving workplace safety and reducing material loss; (2) Superior flowability — spherical or uniform granule shape enables free-flowing behavior ideal for automated feeding systems and pneumatic conveying; (3) Reduced agglomeration — granular silica does not cake or form lumps during storage and transport like fine powder; (4) Easier handling — granules are easier to weigh, dose, and mix without specialized dust containment equipment; (5) Better bulk density — granular form (190-300 g/L) has higher bulk density than powder (120-200 g/L), reducing shipping volume and cost. While powder silica disperses slightly faster, the total cost of ownership strongly favors granular silica for modern automated production facilities.
Choosing the right granule size depends on the application: (1) For feed carrier applications, micropearl granules (150-450 µm) offer excellent flowability and uniform mixing in premixes — Censil 260MP series is the standard choice; (2) For rubber compounding, larger granules (350-850 µm, 20-60 mesh) are preferred for easy dispersion during Banbury or internal mixer processing — Censil 180GR is designed for this; (3) For agrochemical carriers, medium-size granules (200-400 µm) provide optimal absorption of liquid active ingredients in WP and WDG formulations; (4) For industrial anti-caking, fine granules (150-300 µm) ensure rapid dissolution and dispersion. Censil offers granular silica in multiple size ranges — from fine micropearl (150-450 µm) to coarse granular (350-850 µm) — to match your specific application requirements.
Censil granular precipitated silica is used in three main application areas: (1) Feed carrier — as a carrier for liquid feed additives including choline chloride, vitamins (E, A, D3), organic acids, essential oils, and antioxidants, converting liquids into free-flowing granular powders for compound feed and premixes; (2) Industrial applications — as a low-dust reinforcing filler and anti-caking agent in rubber (tire, sole, conveyor belts), plastics, paints, detergents, and chemical manufacturing; (3) Agrochemical carrier — as a carrier and free-flow agent for wettable powders (WP), water-dispersible granules (WDG/WG), and granular pesticide formulations. Across all applications, the granular form eliminates dust problems and ensures consistent, automated processing.
Censil granular silica is designed as a low-dust silica product. The granular and micropearl forms reduce airborne dust by 80-95% compared to standard powder silica. The spherical granule shape minimizes fine particle generation during handling, pouring, and mixing. For applications requiring the lowest possible dust levels, Censil micropearl grades (260MP series) offer superior dust reduction with excellent flowability. This makes Censil granular silica ideal for automated feed production lines, premix facilities, and any environment where dust control is a priority — including rubber plants, agrochemical packaging operations, and food-grade manufacturing.
Yes. Censil granular silica provides the same chemical composition and performance properties as powder silica — identical SiO₂ content (≥98%), BET surface area (160-215 m²/g), and absorption capacity. The primary difference is physical form — granular silica offers lower dust, better flowability, and easier handling. In most formulations, granular silica can directly replace powder silica without any changes to the formulation recipe. The granules break down during mixing to the same primary particle size as powder, delivering identical functional performance. The only adjustment may be slightly longer mixing time to allow granule breakdown, which is typically offset by easier dosing and reduced cleanup.
Yes. Censil granular silica is manufactured by Longyan Shenghe Chemical Co., Ltd. in Fujian, China, with over 20 years of precipitated silica production experience. Censil holds FAMI-QS certification (Certificate No. CNBJ380053-CN, audited by Bureau Veritas, valid through March 2027), making it one of the few Chinese granular silica manufacturers certified for feed applications. Additional certifications include ISO 9001, ISO 22000, HACCP, as well as Halal and Kosher. Censil offers 7 granular/micropearl grades — the widest range among Chinese manufacturers — serving customers across 40+ countries with factory-direct pricing and 2-3 week lead times.