Armfield FT40 Multi-Function Food Processing Unit

Overview

The Armfield FT40 Multi-Function Food Processing Unit is a compact, benchtop-scale pilot plant system engineered for controlled, repeatable batch processing of liquid and semi-liquid food formulations. It operates on fundamental principles of heat transfer (via thermostatically regulated double-wall jacket), mechanical shear mixing (using a vertically mounted Silversen™ high-shear impeller), and time–temperature process control—enabling precise replication of thermal unit operations including pasteurization, homogenization, fermentation incubation, and rapid cooling. Unlike conventional kitchen-scale or generic lab mixers, the FT40 integrates thermodynamic, rheological, and microbiological process requirements into a single, self-contained architecture. Its 5–20 L working volume bridges the gap between small-scale formulation trials and industrial-scale feasibility studies, making it suitable for university food science departments, R&D laboratories in dairy and confectionery companies, and regulatory validation units conducting process challenge studies under ISO 22000 or FDA Food Code frameworks.

Key Features

• Stainless steel (316 grade) processing vessel with polished interior surface (Ra ≤ 0.8 µm) for hygienic compliance and ease of cleaning
• Dual-function thermostatic jacket capable of precise temperature control from 1 °C (refrigerated cooling) to 85 °C (pasteurization-grade heating), with ±0.3 °C stability over full range
• Integrated Silversen™ high-shear mixer with variable-speed drive (0–3000 rpm), optimized for emulsion formation, particle size reduction, and suspension stabilization
• Onboard touchscreen human-machine interface (HMI) providing real-time monitoring and manual/programmed control of temperature, agitation speed, and timer functions
• Embedded data logging capability (CSV export via USB) capturing timestamped values for temperature, RPM, and system status—supporting traceability in GLP and GMP environments
• Mobile chassis with casters and integrated leveling feet, enabling repositioning within shared laboratory spaces without recalibration

Sample Compatibility & Compliance

The FT40 accommodates a broad spectrum of food matrices—including dairy-based emulsions (e.g., ice cream base, margarine), fermented products (yogurt, kefir, sour cream), viscous suspensions (cocoa slurries, protein-fortified beverages), and low-viscosity liquids (juice blends, functional waters). Its design adheres to hygienic engineering principles outlined in EHEDG Guideline Doc. 8 and 3-A Sanitary Standards 01-05. The vessel geometry and impeller configuration minimize dead zones and support CIP-compatible cleaning protocols. While not certified as a commercial food production device, the FT40 meets essential requirements for laboratory-scale process validation per ISO/IEC 17025 and supports documentation necessary for FDA 21 CFR Part 11–compliant electronic records when paired with validated software configurations.

Software & Data Management

The FT40’s embedded controller records all operational parameters at user-defined intervals (1–60 s) and stores up to 30 days of continuous data onboard. Export is performed via standard USB flash drive in plain-text CSV format, ensuring compatibility with third-party analysis tools (e.g., MATLAB, JMP, Python pandas). No proprietary software installation is required. For laboratories requiring audit-ready workflows, optional integration with Armfield’s LabVIEW-based supervisory software enables remote monitoring, alarm logging, and automated report generation—including deviation flags for out-of-spec temperature or dwell time events. All logged data includes UTC timestamps, operator ID fields, and system firmware version metadata—facilitating alignment with ALCOA+ data integrity principles.

Applications

• Development and optimization of ice cream mix aging and freezing point depression profiles
• Rheological conditioning of butter oil/water emulsions for spreadable margarine formulations
• Controlled lactic acid fermentation kinetics studies in yogurt starter cultures under defined pH–temperature trajectories
• Thermal lethality validation for low-acid product pasteurization cycles (e.g., 72 °C for 15 s)
• Viscosity stabilization trials using hydrocolloids (e.g., carrageenan, xanthan) in plant-based beverage systems
• Cooling rate analysis for crystallization control in chocolate tempering pre-studies

FAQ

Is the FT40 suitable for sterile processing or aseptic trials?
No—the FT40 is not equipped with steam-in-place (SIP) or filter sterilization capabilities. It supports clean-but-not-sterile operation; users must implement external sterilization of media and post-process validation where microbiological sterility is required.
Can the Silversen™ mixer be replaced with alternative impellers?
Yes—vessel flange dimensions conform to ISO 2858/DIN 24255 standards, permitting retrofitting of axial-flow, radial-flow, or anchor-type impellers using compatible shaft couplings and torque-rated drives.
Does the system meet electrical safety standards for use in EU laboratories?
Yes—the FT40 carries CE marking under the Low Voltage Directive (2014/35/EU) and EMC Directive (2014/30/EU), with full test reports available upon request from Armfield Technical Support.
What maintenance intervals are recommended for long-term reliability?
Jacket coolant should be replaced annually; impeller shaft seals require inspection every 500 operating hours; temperature sensor calibration is advised quarterly using NIST-traceable reference baths.