Guangzhou Liweishi Environmental Protection Technology Co., Ltd.

COOPERATION CASE
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Tailored cleaning automation for canteens, central kitchens and food processing.

FROM NEEDS ANALYSIS TO LONG-TERM EQUIPMENT OPERATION

PRE-SALES

Requirements Analysis

Solution Design

Equipment Selection

MANUFACTURING

Production

Assembly

Electronic control

Testing

DELIVERY

Installation

Commissioning

Training

AFTER-SALES

Maintenance

Spare Parts

Technical Support

ONE-STOP SERVICE SYSTEM

EXTENSIVE PROJECT EXPERIENCE

STANDARDIZED PROCESS MANAGEMENT

15-MINUTE QUICK RESPONSE

SOLUTIONS BY INDUSTRY​

Food Processing

Returnable Containers

Hardware Workpiece

Factory Canteen

Central Kitchen

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COOPERATION CASE

Case Overview

Liweishi focuses on commercial cleaning, delivering professional, efficient, and stable full-process cleaning solutions across industries.

School

Education
  • Beijing Normal University
  • South China University of Technology
  • Sun Yat-Sen University
School canteen

Company

Enterprise
  • Sinovac Biotech Co., Ltd.
  • Gongniu Group Co., Ltd.
  • Foxconn Technology Group (Shenzhen)
School canteen

Central Kitchen

Mass Catering
  • Guangzhou Duomeier Food Co., Ltd.
  • Zengrui Catering Group Co., Ltd.
  • Shenzhen Fanfanxiang Food Co., Ltd.
School canteen

Food Processing

Industry
  • Dongguan Euro Food Co., Ltd.
  • Ningxia Jiaxiaoguo Fruit Industry Co., Ltd.
  • Yangjiang Kangmei Food Co., Ltd.
School canteen

Featured Cases

Case 01
Client

Central Kitchen, 10,000+ meals/day

Need

Large tableware & container volume; low manual sorting and washing efficiency

Liweishi Solution

Dedicated auto-roller crate washer with integrated spray dishwasher

Equipment

Two-stage spray soaking, dual main wash & rinse, dual-dryer dishwasher

Result

Clean rate 99%, labor −60%, energy saving 30%

School canteen School canteen
Case 02
Client

Food factory, 2,000+ turnover crates/day

Need

Slow manual washing, inconsistent cleanliness, high labor cost

Liweishi Solution

Automatic crate washing & drying system

Equipment

Dual main wash, single air-knife, single-stage dryer

Result

Clean rate 99%, water −40%, labor −70%

School canteen School canteen
Case 03
Client

Bakery chain, 1,500+ baking trays/day

Need

Heavy tray grease, time-consuming manual washing, inconsistent cleanliness

Liweishi Solution

Automatic tray washing & drying line

Equipment

Four-stage main wash, single air-knife, three-stage dryer tray washer

Result

Clean rate 99%, de-greasing +50%, efficiency 3×

School canteen School canteen

FEATURED CASE · LINE-FLOW LAYOUT

Continuous cleaning lines engineered for every scenario

Automatic unboxing washing and stacking line
01
PALLET LOADING

A whole stack of dirty boxes is placed at the infeed of the line to start the process.

02
AUTOMATIC UNSTACKING

The machine automatically separates the stack layer by layer, releasing individual box stacks.

03
BOX SEPARATION

Each stack is further split into single boxes, which are then lined up in order to enter the washing tunnel.

04
AUTOMATIC OVERTURNING

Each box is turned 180° upside down to empty any solid food residue before washing.

05
MULTI-STAGE WASHING

Through multiple high-pressure spray stages, oil and residue are powerfully removed from both the surface and interior of the crate.

06
RINSING

Clean water is applied to flush away any remaining detergent and fine particles.

07
AUTOMATIC TURNING BACK

Boxes are flipped 180° again to return to their normal upright position for use.

08
AUTOMATIC STACKING

Clean and dry boxes are automatically arranged and stacked in preset layers.

09
FINISHED STACK OUTPUT

The completed stacks are conveyed to the discharge point and removed as a whole stack.

Central kitchen workflow line
LID SEPARATOR

Automatically separates lids from meal boxes and plates, allowing lids and containers to enter the washing process separately, avoiding cleaning dead spots caused by stacking and improving cleanliness and washing efficiency.

INTEGRATED DEBRIS REMOVAL, WASHING & DRYING DISHWASHER

Integrates debris removal, soaking, washing, rinsing, high-temperature sanitizing, and drying. After tableware enters, the entire process is completed automatically, outputting clean and dry tableware ready for direct use or temporary storage.

FOOD WASTE PROCESSOR

Crushes and dehydrates food waste, achieving a volume reduction rate of up to 80%, significantly reducing food waste disposal costs, preventing accumulation and decay, and keeping the washing room clean and odor-free.

CENTRAL KITCHEN DEBRIS REMOVAL SYSTEM

Full sets of tableware directly enter the debris removal machine. Large food residues are removed from surfaces by high-pressure water or mechanical means. Residue is automatically separated and discharged, reducing the load for subsequent washing.

School canteen workflow line
TABLEWARE SORTING SYSTEM

Automatically identifies and sorts tableware and food waste. Tableware is conveyed to the dishwasher for cleaning, while food waste is sent to the processing channel for classified treatment.

LONG LINE DISHWASHER

Large capacity design to meet a large number of tableware cleaning needs; High degree of automation, set cleaning, disinfection, drying in one, can be flexibly customized according to customer needs.

CHAIN CONVEYOR BELT

It is used for automatic recycling of tableware before cleaning, which can quickly and continuously transport tableware from the restaurant to the cleaning area, improve the efficiency of tableware recycling, improve the restaurant environment, and optional chopsticks spoon recycling cabinet.

FOOD WASTE PROCESSOR

Crushes and dehydrates food waste, achieving a volume reduction rate of up to 80%, significantly reducing food waste disposal costs, preventing accumulation and decay, and keeping the washing room clean and odor-free.

Factory canteen workflow line
CHAIN CONVEYOR BELT

It is used for automatic recycling of tableware before cleaning, which can quickly and continuously transport tableware from the restaurant to the cleaning area, improve the efficiency of tableware recycling, improve the restaurant environment, and optional chopsticks spoon recycling cabinet.

LONG LINE DISHWASHER

Large capacity design to meet a large number of tableware cleaning needs; High degree of automation, set cleaning, disinfection, drying in one, can be flexibly customized according to customer needs.

SLAG REMOVAL MACHINE

The cutlery is separated from the food residue, the cutlery is automatically transferred to a special cleaning area, and the residue collection device is included in the slag collector, and the residue is automatically filtered out into the reserved container.

BUBBLE POOL

Soaking and pre-washing the filtered tableware can quickly dissolve the grease and soften the caked stains on the tableware.

CORE TECHNOLOGY

HIGH-SPEED AIR KNIFE BLOW-OFF:
FAST REMOVAL OF SURFACE MOISTURE FROM CONTAINERS

Fans are matched according to container structure and conveying direction, creating a continuous and concentrated air-flow to blow off water droplets attached to container surfaces and edges. The air knife angle, height, and airflow coverage can be adjusted based on the product, reducing residual moisture after washing and seamlessly connecting with subsequent drying, palletizing, and turnover processes.

Before Blow-Off Before Blow-Off
➜
After Blow-Off After Blow-Off
SUS304 Air Knife
80~120m/s
➜
Water Removal Rate
≥98%
➜
Air knife blow-off
Configured on Demand: Fans Are Matched according to Container Size, Structure, And Conveying Speed.
Multi-Directional Water Removal: Configurable Top/Bottom/Side Air Knives Blow Off Droplets.
Flexible Fit: For Crates, Baskets, Trays, etc.
Easy Maintenance: Stainless Steel Air Knives for Easy Cleaning and Maintenance.
HIGH-PRESSURE SPRAY CLEANING TECHNOLOGY:
MULTI-DIRECTIONAL FLUSHING REMOVES ATTACHED SOIL

Liweishi matches water pumps, nozzles, and spray piping according to container structure and soil characteristics, flushing container surfaces with multi-directional water flow. By integrating cleaning temperature, detergent, and conveying speed, it creates cleaning solutions adapted to different operating conditions.

Before High-Pressure Spray Before High-Pressure Spray
➜
After High-Pressure Spray After High-Pressure Spray
Covers Inner & Outer Surfaces
Multi-Directional
Spray Layout
➜
Condition-Based Pressure & Flow
Pump and Nozzle Matching
➜
High-pressure spray cleaning
Pressure Matching: Configure Cleaning Pressure And Flow Based on Soil And Material.
Multi-Directional Coverage: Arrange Nozzles according to Container Structure, Covering Bottom And Side Walls.
Process Synergy: Integrate Temperature, Detergent, And Time to Match Cleaning Needs.
Flexible Fit: For Crates, Baskets, Trays, etc.

LIWEISHI DISRUPTIVE HEAT RECOVERY TECHNOLOGY

ENERGY-SAVING VS. TRADITIONAL DISHWASHER: OPERATING COST COMPARISON
Equipment Type Total Power(kW) Annual electricity consumption per unit(kW·h) Water Consumption(L/h) Annual Water Consumption per Unit(L)
Liweishi energy-saving model: e.g., LWS-EVC3800H 30.54kW 54900kW·h 280L/h 504000L
Traditional dishwashers on the market
56.4kW 101520kW·h 320L/h 576000L

Comprehensive Solutions

OVERALL SOLUTIONS AND OTHER SUPPORTING EQUIPMENT

CONVEYOR + RECOVERY CABINET SERIES
Conveyor + Recovery Cabinet Series

Flexible tableware recovery,
Efficient and stable conveying,
Customized on demand

WATER DEBRIS REMOVAL SERIES
Water Debris Removal Series

High-pressure powerful debris removal,
Three-stage filtration tank,
Labor saving

FOOD WASTE PROCESSING MACHINE SERIES
Food Waste Processing Machine Series

Automatic residue recovery,
85% volume reduction by compression,
Environment improvement

BUBBLE TANK SERIES
Bubble Tank Series

Pre-wash softens stains,
Reduces washing time,
Automatic heating

CONTAINER CLEANING
Container cleaning washer
Clean stacked crates
Clean Output
TABLEWARE CLEANING
Tableware cleaning washer
Clean trays and bowls
Clean Output

Success Stories

Selected Partner Case Studies

Food processing plant

Pharmaceutical processing plant

Food processing plant​

Factory Canteen

Factory Canteen

School Canteen​

Corporate Cafeteria

Hotel Canteen

Factory Canteen

获取方案

Need a custom cleaning line?

Send us your items to wash, capacity and site conditions — we reply within 24 hours.

Leave a message
Phone +86 18122453342
Email gzliweishi@gmail.com
WhatsApp 8618122453342
WeChat 13926737034
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