What materials does Frigate recommend for mixing acidic or salt-rich food products?

Frigate recommends 316L stainless steel for standard acidic exposure and Hastelloy C-22 for high-chloride or low-pH environments. Both materials resist pitting, crevice corrosion, and stress corrosion cracking. For abrasive slurries, Frigate applies carbide coatings on critical edge zones. Material selection is based on actual ingredient composition and cleaning agents.

Food Processing Mixer Blade

Name: Food Processing Mixer Blade | Stainless Processing Agitator – Frigate
Price: 249.00 USD
Availability: InStock

Food Processing Mixer Blade geometry directly influences batch uniformity in high-viscosity and particulate-heavy formulations. Poor blade pitch or ineffective surface profiles often cause dead zones and inconsistent mixing patterns. Multi-plane flow is achieved through helical or anchor-type blade configurations, ensuring complete material turnover and predictable shear distribution throughout the vessel.

Blade Geometry/Profile

Paddle (high shear), Propeller (axial flow), Ribbon (gentle mixing), Anchor (viscous materials)

Overall Dimensions

Length – 100–1500 mm; Width – 20–200 mm; Thickness – 3–20 mm (Custom per mixer capacity)

Material Specification

Food-Grade SS 304L/316L, Hardened SS 420 (for abrasive mixes), Titanium (corrosive environments)

Shaft Mounting Interface

Bore Diameter – 25–100 mm; Keyway – 6×6 mm to 16×10 mm; Bolting Pattern – 4–8 M8–M16 holes (flange-mounted)

Surface Finish (Food Contact)

Ra ≤ 0.4 µm (Mirror polish), Electropolished (per FDA/EC 1935), Passivated (for SS)

Product Description

Food Processing Mixer Blade surfaces often present sanitation risks due to weld porosity, sharp internal corners, or non-passivated zones. To comply with CIP protocols, all blade contact surfaces are manufactured using electropolished 316L stainless steel, with fully radiused edges and continuous welds meeting ASME BPE and 3-A standards. This reduces microbial harborage and facilitates chemical cleaning.

Weld Quality/Finishing

TIG Welded (full penetration, no cracks), Seamless Grinding (hygienic finish)

Balance Requirements

Static – ≤ 1 g·cm (ISO 1940-1 G6.3); Dynamic – ≤ 0.5 g·cm (G2.5 for high-speed mixers)

Hardness

SS 304L/316L – 150–200 HV; Hardened SS 420 – 45–55 HRC (for wear resistance)

Corrosion Resistance

Salt Spray Test – ≥ 500 hrs (ASTM B117), Pitting Resistance; Equivalent (PRE) – ≥ 35 (SS 316L)

Certification Standard

FDA 21 CFR 175.300, EC 1935/2004, 3-A Sanitary Standards (18-03), ISO 9001

Technical Advantages

Food Processing Mixer Blade performance affects motor load and drive component fatigue. Incorrect rake or attack angles generate uneven torque, leading to accelerated bearing wear and gearbox strain. Each blade is dynamically balanced to ISO 1940 standards and designed to maintain laminar flow at process RPMs, minimizing axial thrust and vibration under full load.

Exposure to chlorides, organic acids, or abrasive particulates leads to rapid degradation of conventional Food Processing Mixer Blades. Application-specific alloys such as Hastelloy C-22, duplex stainless steel, or thermal spray-coated surfaces are offered to maintain mechanical integrity under high chemical or erosive stress, extending blade service life in critical environments.

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Industry Applications

Meat and Poultry Processing

Used for uniform protein dispersion, fat emulsification, and particulate suspension in ground meat and formed product formulations.

Bakery and Dough Mixing

Facilitates hydration of flour, gluten development, and homogenous blending of high-viscosity dough under controlled shear conditions.

Dairy Product Manufacturing

Ensures even mixing of curds, cream, and stabilizers in cheese, yogurt, and spreadable dairy product preparation processes.

Sauce and Emulsion Production

Provides controlled shear and laminar flow to maintain stable emulsions in oil-based sauces, dressings, and condiments.

Confectionery and Chocolate Processing

Maintains thermal consistency and shear uniformity during blending of sugar syrups, cocoa, and emulsifiers in viscous environments.

Beverage Premix Blending

Enables consistent dissolution and dispersion of soluble solids, flavor additives, and acidulants in batch and continuous beverage systems.

Process-Specific Customization

Food Processing Mixer Blade selection must align with rheological behavior, fill volume, and vessel geometry. Configurations are available for ribbon, paddle, gate, or plow systems with parameters like blade width, helix pitch, sweep clearance, and tip speed engineered per batch characteristics. This ensures shear-sensitive and high-solid products are processed without stratification or overmixing.

Replacement of Food Processing Mixer Blades often involves challenges in hub alignment, bore tolerances, and shaft interface. Blades are supplied with machined fits for keyed, spline, or taper lock assemblies, compatible with existing agitator shafts. Optional modular hub designs and precision flange patterns reduce downtime during retrofitting or planned maintenance.

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How does Frigate ensure dimensional accuracy in Food Processing Mixer Blades for retrofit applications?

Frigate uses 3D scanning and reverse engineering to capture exact dimensions of existing shafts and mounting interfaces. Precision machining ensures ±0.05 mm tolerances for bore, keyway, and flange alignment. This allows seamless replacement without modifying existing equipment. Each blade is trial-fitted and dynamically balanced before dispatch.

How does Frigate control vibration in large-diameter Food Processing Mixer Blades?

Frigate performs static and dynamic balancing according to ISO 1940 Grade G2.5 standards. Blade mass distribution and center of gravity are validated using simulation and spin tests. Vibration dampening hubs are integrated for high-inertia systems. This protects bearings, seals, and gearboxes from long-term misalignment and fatigue.

How does Frigate validate blade performance for non-Newtonian food fluids?

Frigate uses CFD (Computational Fluid Dynamics) modeling to simulate blade flow in shear-thinning and yield-stress fluids. Blade profiles are optimized to maintain flow under varying viscosities. Physical testing is done in scaled prototypes with rheology-matched simulants. This ensures reliable mixing of products like tomato paste or peanut butter.

How does Frigate reduce cleaning time for blades used in allergen-sensitive processing lines?

Frigate manufactures blades with fully radiused internal corners and polished welds to eliminate residue traps. Surface finish is controlled below Ra 0.6 µm using electropolishing. Modular designs allow tool-less disassembly for visual inspection. These features minimize cleaning validation time in cross-contamination-critical environments.

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