Engineering & Manufacturing of Industrial & Pharmaceutical Reactors Industrial & Pharmaceutical Reactors & Process Tanks A reactor is not just a pressure vessel; it is the heart of a production process. In an industrial or pharmaceutical reactor, mixing efficiency, heat transfer, temperature and pressure control, residence time, safety, cleanability, surface finish, and instrumentation precision all directly impact the final product quality. Based on engineering design, stainless steel fabrication, Hygienic Design principles, and GMP requirements, Fanpod designs and produces reactors for sensitive food, pharmaceutical, chemical, cosmetic, and biotechnology processes. View Applications Sample Calculations Mixing / Agitation Heating / Cooling Jacket CIP / SIP Compatible ASME / PED / GMP PROCESS EQUIPMENT Reactor, Mixer, and Process Tank in One Engineered System In many production lines, the reactor serves as the primary mixing unit, thermal vessel, storage tank, and controlled production unit simultaneously. 1 Controlled Mixing Impeller type, rotational speed, number of blades, baffles, and motor power are selected based on viscosity, density, working volume, and product sensitivity to ensure uniformity without destructive shear. 2 Heat Transfer Reactors can be equipped with heating/cooling jackets, internal coils, Half-Pipe coils, or Dimple jackets for precise temperature control during reactions, pasteurization, or maintenance. 3 Process Control & Safety Integration with temperature, pressure, level, load cell, pH, and conductivity sensors via PLC/HMI systems allows for precise control, data logging, and high production repeatability. Reactor Applications Across Industries Fanpod reactors are designed for Batch or Semi-Batch processes. Mechanical and process designs vary based on the product, hygiene level, pressure, temperature, and agitation requirements. Formulation and mixing of pharmaceutical products, syrups, and suspensions Production of creams, gels, lotions, detergents, and cosmetics Chemical processes, resins, polymers, additives, and industrial solutions Food processes, sauces, concentrates, syrups, and heat-sensitive compounds Fermentation, microbial culture, and biotechnology processes Powder-in-liquid dissolution, hydration, and primary homogenization MIXING PERFORMANCE Evaluating Mixing Performance in Reactors Mixing quality is not defined by rotation alone. Flow type, power input, viscosity, tank geometry, and impeller type determine how quickly and uniformly the product is mixed. Parameter Effect on Reactor Performance Design Note Product Viscosity Higher viscosity reduces vortex flow and increases required power. Anchor, Helical Ribbon, or Scraper mixers are better for viscous products. Impeller Type Propellers, turbines, hydrofoils, and anchors create different flow patterns. Selection depends on the process goal: mixing, suspension, or emulsification. Internal Baffles Baffles prevent mass fluid rotation, creating turbulence and effective mixing. Crucial for low-viscosity fluids and high-speed agitators. Rotational Speed Higher RPM increases mixing intensity but may cause foaming or shear damage. VFD (Variable Frequency Drive) is recommended for speed control. D/T Ratio The ratio of impeller diameter to tank diameter affects flow pattern and energy. Design must balance volume, geometry, and product characteristics. Heating & Cooling in Reactors In many processes, temperature control is as vital as mixing. Chemical reactions, pharmaceutical processes, and pasteurization require precise thermal energy management. Thermal jackets or coils can operate with steam, hot water, thermal oil, or glycol. Proper design ensures that the heat transfer area (A) and the overall coefficient (U) match the process demand. Conventional Jacket for general applications Half-Pipe Coil Jacket for higher pressure and better heat transfer Dimple Jacket for lightweight design and efficient cooling Internal Coil for specific high-thermal demand processes Basic Heat Transfer Equation: Q = m × Cp × ΔT Where: Q = Required heat energy m = Product mass Cp = Specific heat capacity ΔT = Temperature increase For jacket sizing: Q = U × A × ΔT_LMTD Where: U = Overall heat transfer coefficient A = Heat transfer area ΔT_LMTD = Log mean temperature difference SAMPLE CALCULATIONS Engineering Estimation for Energy & Mixing Power The following calculations provide an engineering baseline. Final designs must account for actual product properties, efficiency, and safety factors. Example 1: Product Heating Energy Assumed: 1000L of a water-like solution heated from 25°C to 85°C. Density ≈ 1000 kg/m³ and Cp ≈ 4.18 kJ/kg.K. Given: Volume = 1000 L = 1 m³ Density ≈ 1000 kg/m³ Mass = 1000 kg Cp = 4.18 kJ/kg.K ΔT = 85 - 25 = 60 K Q = m × Cp × ΔT Q = 1000 × 4.18 × 60 Q = 250,800 kJ ≈ 250.8 MJ If heating must occur within 60 minutes, the average thermal power is approx: 250.8 MJ ÷ 3600 s ≈ 69.7 kW. Actual service capacity must be higher to account for losses. Example 2: Agitator Power Estimation For low-viscosity fluids, power consumption is highly dependent on rotational speed and impeller diameter. Agitator Power Equation: P = Np × ρ × N³ × D⁵ Where: P = Power, W Np = Power number ρ = Density, kg/m³ N = Rotational speed, rev/s D = Impeller diameter, m Example Calculation: Np = 1.5 | ρ = 1000 kg/m³ | N = 2 rev/s (120 rpm) | D = 0.35 m P = 1.5 × 1000 × 2³ × 0.35⁵ ≈ 63 W In practice, motor power is selected considering viscosity, gearbox losses, safety factors, and startup conditions. Viscous products require significantly more power. ENGINEERING & COMPLIANCE Mechanical Design, Hygiene, and Fabrication Standards Reactor design must balance process, hygiene, safety, and control requirements. For sensitive projects, technical documentation and QC tests are vital deliverables. Material Stainless Steel 304, 316L, or special alloys based on product compatibility. Surface Finish Controlled Ra polishing, electro-polishing, and cleanable (Hygienic) design. Testing Leak tests, Hydro-tests, Dye Penetrant (PT), Passivation, and Weld inspection. Documentation MTC, WPS, WPQ, GA Drawings, QC records, and ASME/PED compliance if required. INSTRUMENTATION Instrumentation & Process Control in Reactors Modern reactors are controlled production systems. Proper instrumentation ensures safety, batch repeatability, and minimizes operator error. T Temperature Control Temperature probes, thermowells, and control valves for precise heating and cooling management. P Pressure Control Pressure gauges, transmitters, safety valves, rupture discs, and vacuum breakers for safe operation. L Level & Weight Control Level sensors, load cells, or sight glasses for material charging, dosing, and batch management. Reactor design should start from the process, not just the tank dimensions To correctly select volume, agitator type, motor power, jacket, material, and control systems, we must evaluate the product, temperature, pressure, viscosity, and standard requirements from the beginning. Fanpod's engineering team is ready to design your reactor based on your actual process needs. Request Technical Consulting View Process Equipment