▼ Industry Background
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Food additives and ingredients are the cornerstone of the modern food industry. Liquid flavors and colorants in beverages, enzymes and vitamins for baking, thickeners and acidity regulators in sauces—all require precise dosing down to gram or even milligram levels. Excessive dosage compromises flavor and regulatory compliance, while insufficient dosage fails to deliver expected process effects. Preservatives and acidity regulators are often corrosive or highly viscous, imposing dual stringent requirements on wetted material compatibility and metering accuracy for transfer equipment. Conventional peristaltic pumps suffer poor chemical resistance; rotary pumps inflict severe shear damage; diaphragm pumps generate heavy pulsation with low precision. All three types fail to satisfy the triple demands of micro-dosing, pinpoint accuracy and stable delivery.

▼ Industry Pain Points
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▎Flavors & Colorants: ppm-level dosing with minor deviations causing sensory defects
Liquid flavors and natural colorants only account for 0.01%~0.5% of total product mass. Flavors are mostly oil-soluble or water-soluble low-viscosity fluids, while colorants deliver strong tinting power at low concentrations. A mere ±5% dosing deviation leads to off-taste or unacceptable color variation. Peristaltic pump tubing adsorbs flavor compounds, resulting in inconsistent performance across batches.

▎Preservatives & Acidity Regulators: Dual challenges of corrosive media and regulatory compliance
Common preservatives and acidity regulators including sodium benzoate, potassium sorbate, citric acid and lactic acid are weakly to moderately acidic solutions that corrode standard metallic pump components. Some preservatives exist as suspensions, where particulate sediment inside pump chambers causes jamming and accuracy drift. Additive dosage is strictly governed by China GB 2760; over-dosing constitutes regulatory violation. Metal ion leaching and out-of-spec dosing create two critical compliance risks.

▎Vitamins & Enzymes: Shear-induced deactivation and temperature rise reduce potency
Vitamin C, B-group vitamins and enzymes (amylase, protease, pectinase, etc.) are highly sensitive to mechanical shear and temperature spikes. Violent agitation from high-speed centrifugal or rotary pumps destroys the 3D structure of enzyme proteins, cutting enzyme activity by 30%~50%. Internal temperature rise accelerates oxidative degradation of vitamins and continuous potency loss. Fluid transfer must feature low shear, minimal temperature elevation and short residence time.

▎Thickeners: Pulsation and stick-slip during high-viscosity transfer
Solutions of xanthan gum, guar gum and CMC (sodium carboxymethyl cellulose) reach viscosities of thousands to tens of thousands mPa·s. Under high viscosity, heavy pulsation from diaphragm pumps triggers violent fluctuations in downstream flowmeter readings and destabilizes inline mixing ratios. Traditional gear pumps exhibit stick-slip at low rotational speeds, delivering discontinuous output and residual caking inside pump chambers.

▼ JONSN Solutions: Four Additive Categories Fully Covered Across Material, Accuracy, Shear & Viscosity Metrics
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▎Flavor & Colorant Micro Metering – Core Application of MPG Micro Series

The MPG micro series delivers a single-revolution displacement of only 40 μL/rev, paired with servo motors to achieve wide flow coverage of 1–280 mL/min, with linear accuracy of ±0.5% and repeat accuracy of ±0.2%. For ppm-level dosing of flavors and colorants, the ultra-small displacement enables stepless micro-metering:

• 40 μL per revolution, minimum flow 1 mL/min, one order of magnitude higher displacement resolution than peristaltic pumps

• PEEK pump body + zirconia ceramic gears ensure zero adsorption of flavors and colorants, eliminating cross-contamination during product changeovers

• Pulsation-free output delivers far more consistent online color concentration than extrusive pulsation of peristaltic pumps

• Servo drive achieves startup/shutdown within 50 ms; multi-channel parallel independent control supports one-click formula switching

          Recommended: MPG Micro Series (40 μL/r), multi-pump parallel independent N-channel control

▎Preservatives & Acidity Regulators – Corrosion-resistant Fully Inert MRA Series

The MRA Series (100–2000 mL/min) features PEEK pump bodies with optional Hastelloy wetted channels, fully resistant to food-grade acids and preservatives:

• PEEK complies with FDA 21 CFR food contact standards; Hastelloy withstands strong acids (phosphoric, citric, lactic acid)

• Zirconia ceramic gears eliminate metal ion leaching at source to prevent heavy metal contamination

• Magnetic drive removes dynamic shaft seals, eliminating leakage risks of corrosive fluids and safeguarding operator safety

• Suspended particles pass through without jamming or flow drift; ±0.5% accuracy guarantees compliance with GB 2760 dosage limits

          Recommended: MRA Series (100–2000 mL/min), PEEK pump body with Hastelloy option

▎Vitamins & Enzymes – Low-shear Activity Preservation via MPG/MRA Series

MPG and MRA Series maintain stable output at low rotational speeds (1–100 rpm) without stick-slip. Precisely engineered gear meshing clearances deliver far lower internal shear rates than centrifugal and rotary pumps:

• Internal temperature rise controlled below 5°C to minimize vitamin oxidative degradation

• Enzyme activity retention rate >98%, delivering fundamental improvement over severe activity loss in rotary pumps

• Positive displacement design maintains consistent flow regardless of ±1°C viscosity fluctuations of enzymatic solutions

• 316L pump heads with FFKM seals fully comply with FDA, GB and EU food contact regulations

          Recommended: MPG Micro Series (40 μL/r) / MRA Series (100–2000 mL/min)

▎Thickeners – Core High-viscosity DP Series

The high-viscosity DP Series adopts large-displacement positive displacement design (0.2–100 cc/r) for transfer of thickener solutions ranging 500–50,000 mPa·s:

• Positive displacement principle delivers consistent flow dependent only on rotational speed, unaffected by dramatic viscosity shifts of xanthan gum, CMC or guar gum

• Continuous multi-tooth meshing restricts pressure fluctuation below ±1%, stabilizing downstream inline flowmeter readings

• 316L pump head with compact dead-space-free structure prevents residual caking during CIP inline cleaning

• Magnetic drive eliminates dynamic shaft seals, delivering leak-free operation and zero seal wear under high-viscosity loads

          Recommended: DP High-viscosity Series (0.2–100 cc/r), food-grade 316L construction

▼ Product Selection Guide
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▼ Food Safety & CIP Compatibility
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• 316L stainless steel pump heads with mirror polishing Ra ≤0.8 μm, no dead spaces for residue retention

• FFKM perfluoroelastomer gaskets compliant with FDA 21 CFR 177.2600 and EU 10/2011

• PEEK gears and pump bodies meet FDA 21 CFR 177.2415 and GB 9685-2016

• Zirconia ceramic gears eliminate metal ion leaching to satisfy FSSC 22000 requirements

• Full magnetic drive without dynamic seals eliminates seal wear debris falling into process media

• CIP inline cleaning cycle: 85°C hot water rinse → 2% NaOH alkaline wash → pure water rinse → 1% HNO₃ acid wash → final pure water rinse

• Entire MPG/MRA Series withstand 121°C SIP steam sterilization for 30 minutes

• Dead volume <0.5 mL; ATP test reading <10 RLU after changeover cleaning to block allergen cross-contamination

• Optional Tri-Clamp / DIN 11851 sanitary connections; quick-disassembly design enables pump head removal within 3 minutes

▼ Core Values
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▎ppm-level micro precision ensures consistent batch-to-batch quality
 40 μL/rev micro displacement of MPG plus ±0.2% repeat accuracy delivers identical flavor and colorant dosing between Batch 1 and Batch 10,000. For large food groups, uniform taste across factories and production lines represents core brand equity. Replacing peristaltic pumps prone to tubing aging drift, JONSN positive displacement metering eliminates the primary variable causing batch quality inconsistency.

▎Fully inert materials eliminate contamination and corrosion at source

PEEK pump bodies, zirconia ceramic gears and optional Hastelloy flow paths satisfy FDA, GB and EU triple food contact standards. Corrosive preservatives and acidity regulators feature zero metal leaching and zero leakage; no foreign substances are introduced into vitamin and enzymatic media. Food manufacturers exporting to Europe, America, Japan and Korea require no pump replacement.

▎Viscosity-immune positive displacement technology across all product lines

From low-viscosity flavors, suspended preservatives to high-viscosity thickeners, positive displacement gear pumps maintain stable flow purely based on rotational speed, unaffected by material state changes. This technology shifts food additive production from operator experience-dependent manual adjustment to standardized parameterized control.

▎Low-shear design retains activity with enzyme retention >98%

Precisely controlled gear meshing clearances deliver far lower internal shear rates than centrifugal and rotary pumps. Whereas rotary pumps lose 30%~50% enzyme activity via shear damage, JONSN magnetic gear pumps preserve over 98% enzyme potency. Vitamins experience negligible oxidative degradation with temperature rise limited below 5°C, fully retaining their efficacy.

▎Low total lifecycle cost with 20,000-hour maintenance-free operation

PEEK and zirconia ceramic gears deliver a service life exceeding 20,000 hours, over 5 times more wear-resistant than conventional stainless steel gears. Magnetic drive removes consumable dynamic seals for zero routine maintenance. Compared with peristaltic pumps requiring silicone tube replacement every few hundred hours, JONSN pumps deliver markedly lower total cost of ownership over the full service cycle.

▎Quick disassembly & easy cleaning minimize production downtime

Pump head disassembly takes only 3 minutes with dead volume <0.5 mL. Switching production between flavors, vitamins/enzymes and thickeners only requires CIP flushing; production restarts immediately once ATP testing reads <10 RLU.