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Home » Turnkey Solutions » Fruit & Veg Drying / FD » Solutions for Freeze-Dried Fruit and Vegetable Crisps
Industrial Turnkey Plant Engineering (EPC)

Solutions for Freeze-Dried Fruit and Vegetable Crisps

Turnkey vacuum freeze-drying (FD) plant from pre-treatment, IQF blast freezing, vacuum sublimation chamber to nitrogen packaging for healthy snack chips.

Design Plant Capacity 50 kg - 2,000 kg / batch
Target Agro-Produce Strawberry, Mango, Apple, Banana, Sweet Corn, Okra, Durian
Workshop Footprint 150 - 600 m² (Custom CAD)
Automation Architecture Central Siemens PLC Linked
Inquire for Complete EPC Line Proposal » Request 3D CAD Layout

System Engineering Description & Technical Scope

Plant Architecture
Solutions for Freeze-Dried Fruit and Vegetable Crisps

Hadof Machinery turnkey Freeze-Drying (FD) plants represent the gold standard in premium shelf-stable food preservation. By sublimating moisture directly from ice to vapor under deep vacuum (< 20 Pa), cellular morphology, natural colors, vitamins, and mouthfeel are preserved without thermal degradation. Ideal for strawberries, durian, mango, sweet corn, and instant soup cubes.

Key System Features

  • Deep Vacuum Sublimation: High-efficiency diffusion and Roots pumps ensure rapid sublimation and low residual moisture (< 2%).
  • Radiation Heating Plates: Highly uniform heating shelves maintain consistent temperature across all product trays.
  • Clean-In-Place Integration: Sanitary chamber design with CIP/SIP capabilities meets FDA and EU GMP food plant standards.

Key Line Machinery & Workshop Installation Gallery

Verified SUS304 Builds

Featured sanitary machinery and turnkey workshop integration units custom fabricated for Solutions for Freeze-Dried Fruit and Vegetable Crisps. Precision engineered for high continuous yield and zero cross-contamination:

Heavy SUS304 Vacuum Sublimation Cylinder Vessel Unit 01

Heavy SUS304 Vacuum Sublimation Cylinder Vessel

Industrial insulated vacuum chamber with thermal oil heating plates for balanced ice crystal sublimation.

Internal Radiation Heating Plates & Tray Rails Unit 02

Internal Radiation Heating Plates & Tray Rails

Multi-shelf sanitary stainless guide rails ensure uniform radiant heat across all product trays.

Deep Sublimation Cold Trap & PLC Control Console Unit 03

Deep Sublimation Cold Trap & PLC Control Console

Ultra-low temperature ice condensation trap with Siemens automated PLC recipe touchscreen console.

End-to-End Processing Flowchart & Stage Pipeline

Automated Continuous Flow

The processing line operates as an uninterrupted sanitary sequence. Raw agricultural produce transitions through sequential mechanical, hydraulic, and thermal treatment zones synchronized by Siemens variable-speed frequency drives:

STAGE 01

Sanitary Wash & Peeling

Input: Fresh Ripe Strawberries/Apples

Gentle bubble washing and abrasive skin removal engineered for delicate high-value fruits and vegetable slices.

STAGE 02

Uniform Precision Slicing

State: Uniform 5-8mm Slices

High-accuracy dicer/slicer producing identical thickness slices for balanced ice sublimation rates.

STAGE 03

Rapid Blast Freezing (-40°C)

State: Solid Micro-Crystal Ice

Industrial blast freeze tunnel creates ultra-fine ice crystals without rupturing fruit cell walls.

STAGE 04

Vacuum Chamber Loading

State: Suspended Tray Trolleys

Automated rail transfer brings frozen trays into the deep vacuum cylinder without thermal temperature rise.

STAGE 05

Sublimation Vacuum Drying

State: Residual Moisture <3%

Deep vacuum (<10 Pa) sublimates ice directly into water vapor, retaining 98%+ original color, vitamins, and aroma.

STAGE 06

Humidity-Controlled Clean Pack

Output: Premium Crisps Pouch

Nitrogen-flushed sealing within dehumidified cleanroom (<30% RH) prevents hygroscopic moisture re-absorption.

Complete Line Machinery Configuration Matrix

100% SUS304 Standard

Every component is built with food-contact certified SUS304 stainless steel and IP65 waterproof electric enclosures:

Process Workstation Core Equipment Unit Installed Power Sanitary Material Standard Interlocked Automation Role
01. Reception & Prep Raw Produce Infeed & Soaking Elevator 1.5 - 2.2 kW SUS304 Sanitary Grade Ultrasonic level sensors pace infeed automatically based on washing capacity.
02. Primary Washing High-Pressure Vortex / Bubble Washer 4.0 - 7.5 kW SUS304 + Nylon Brushes Timed air agitation and water cycling pump with automated overflow skimming.
03. Precision Processing Industrial Slicer / Dicer / Peeling Station 3.0 - 5.5 kW Hardened SUS420J2 Blades Variable inverter motor adjusts cutting RPM to produce harvest hardness.
04. Sanitization & Wash 4°C Chilled Ozone Sanitizing Tank 5.5 - 11.0 kW SUS304 Double Jacketed Continuous temperature loop and digital ORP ozone dosage regulation.
05. Dewatering / Dry Continuous Air Knife / Belt Dryer 7.5 - 18.5 kW SUS304 Perforated Mesh High-static centrifugal blowers strip surface moisture down to target standard.
06. Central Automation Central Siemens Touchscreen PLC Panel 24V DC Logic IP65 Enclosure with A/C Centralized one-touch start/stop, individual speed synchronization, and fault alarms.

Plant Utility & Energy Balance Sheet

Project Feasibility Benchmarks

Engineered for maximum resource efficiency, our lines feature closed-loop water recirculation and low heat radiation losses:

Electric Power Supply

35 - 120 kW (380V/220V/440V, 50/60Hz 3-Phase). Tailored to client local electrical transformer specs.

Clean Water Demand

1.5 - 3.5 m³/h make-up water. High-efficiency rotary drum filtration reduces freshwater usage by 60%.

Steam / Heating Energy

300 - 800 kg/h saturated steam (Optional: Integrated natural gas burner or high-efficiency heat pump).

Compressed Air Source

0.6 - 0.8 MPa dry clean air. Required for pneumatic sorting flappers, peeling jets, and packaging cylinders.

HADOF 4-Stage EPC Turnkey Delivery Protocol

Full Lifecycle Guarantee
Phase 01: Engineering
Custom 3D CAD Planning

We provide full CAD/3D building layouts, floor drainage plans, and electrical drop schedules tailored to your facility footprint.

Phase 02: Manufacturing
100% FAT Factory Acceptance

Continuous 48-hour water, electrical, and raw product load testing in our factory with live HD video streaming prior to container packing.

Phase 03: Field Deployment
Overseas Commissioning

Senior mechanical engineers and electrical technicians dispatched to your jobsite for physical assembly, wiring, and operator training.

Phase 04: Plant Lifecycle
72-Hour Rapid Spare Parts

Stocked inventory of critical mechanical seals, bearings, heating elements, and blades with global air courier dispatch within 72 hours.

Overseas Commissioned Plants & Case Studies

View All Project Cases →

Request Complete Plant Engineering Proposal & Factory CAD

Speak directly with our senior process engineers. Submit your raw material condition, planned output, and workshop space for a customized quotation within 24 hours.

Direct Senior Engineering Desk

WhatsApp: +86 15239453015

Email: [email protected]

Hours: Monday – Saturday (8:00 – 18:00 GMT+8)

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