Freeze DryersQS-FD-20 · 3 configs
Industrial food drying & frying equipment · Shanghai
Industrial freeze dryers& vacuum fryers,factory-direct.
We design and build SUS304 freeze dryers, low-temperature vacuum fryers and washing machines for fruit, vegetable, coffee and snack producers — sized to your product, tested on video before it ships.
−55 °Ccold trap−40 °Cfreezing0 °Cice melts+50 °Csecondary drying+100 °Cvacuum frying+120 °Cmax. oil
3product lines: freeze drying, vacuum frying, washing
20–200 m²freeze-dryer shelf area, QS-FD-20 to QS-FD-200
5–300 kgvacuum-fryer capacity per batch
1 dayreply time on every inquiry
Product lines
From −55 °C to +120 °C. Three ways to take water out of food.
−55 °C cold trap3 models
Freeze Dryers
SUS304 vacuum freeze dryers (lyophilizers) from 20 m² to 200 m² shelf area for fruit, vegetables, coffee, dairy, candy and ready meals.
Explore freeze dryers
80–120 °C oil6 models
Vacuum Fryers
Batch vacuum fryers from 5 kg pilot units to 300 kg production machines, with centrifugal de-oiling under vacuum for low-oil fruit and vegetable chips.
Explore vacuum fryers
3 t/h throughput1 model
Washing Machines
Automatic 3 t/h stainless-steel oil washing machines for fruit, vegetables, olives, chicken and frozen food, in 380 V, 220 V and 110 V versions.
Explore washing machinesCapacity estimator
Which freeze dryer fits your daily output?
A planning estimate based on shelf area, loading density and cycle time. Confirm with a sample test.
Recommended
1 × QS-FD-100
- Required shelf area
- 100 m²
- Batches per day
- 1
- Estimated dry output
- ≈ 108 kg/day
- Loading density used
- 10 kg/m²
Estimate only. Final sizing depends on slice thickness, sugar content and a sample test run.
Featured machines
Most-requested models
Freeze DryersQS-FD-100 · 3 configs
QS-FD-100 Industrial Food Freeze Dryer
Freeze DryersQS-FD-200 · 3 configs
QS-FD-200 Large-Scale Lyophilization Plant
Vacuum Fryers300 kg
300 kg Vacuum Frying Line for Fruit Crisps
Vacuum Fryers100 kg
100 kg Low-Temperature Batch Vacuum Fryer
Washing Machines3 t/h
Automatic Oil Washing Machine for Fruit, Vegetables & Olives, 3 t/h
How we work
From your sample to a running line.
Sample test
Send your product. We run it, record the cycle and share photos and data.
Engineering
Sizing, layout drawing, utility list and a fixed-scope quotation.
Build & video FAT
Manufactured in SUS304, then run and filmed for your approval before shipping.
Install & support
Installation guidance, operator training and remote video support for life.
Projects
Lines we engineer
Freeze DryersFruit snacks
Freeze-Dried Strawberry Slice Line, 2 t/day
Two QS-FD-100 chambers on staggered cycles turn about 2 tonnes of prepared strawberries per day into crisp, colour-true slices for cereal, snack and baking brands.
Freeze DryersBeverages
Instant Coffee Lyophilization Plant
A QS-FD-200 Premium chamber dries frozen coffee-extract granules at low temperature to keep the aroma that makes freeze-dried coffee worth its price.
Freeze DryersConfectionery
Freeze-Dried Candy Production Room
A single QS-FD-20 running short cycles lets a confectionery brand puff and crisp hard candies, marshmallows and taffy several times a day in a small room.
The factory
Built by people who weld the chambers themselves.
Freeze Dryer Factory is the equipment brand of a Shanghai manufacturer focused on one thing: machines that remove water from food reliably, batch after batch.
- SUS304 stainless steel on every food-contact surface
- Every machine run and filmed before it ships
- Test reports and spare-parts lists with every order
What machines does Freeze Dryer Factory make?
We manufacture industrial vacuum freeze dryers (QS-FD-20, QS-FD-100 and QS-FD-200 in Standard, Advanced and Premium configurations), low-temperature vacuum fryers from 5 kg to 300 kg per batch, and 3 t/h fruit and vegetable oil washing machines — 10 models in total.
Where is the factory and do you export?
We are based in Shanghai, China and export worldwide. The operating company is Shanghai Mars Industrial Co., Ltd..
Can you test my product before I buy?
Yes. Send a sample and we run it on a test machine, then share cycle data, photos and a recommendation before quotation.
How do I choose the right freeze dryer size?
Divide your daily prepared wet input by the loading density (about 10 kg/m² for sliced fruit) and by batches per day. Use the estimator on this page for a quick answer.
What warranty and support do you provide?
Freeze dryers carry a lifetime warranty and vacuum fryers a long-term warranty, with terms set out in the contract. Every machine ships with an inspection video, manual, spare-parts list and remote video support.
How fast will I get a quotation?
We reply to every inquiry within one business day. Detailed engineered proposals with layout drawings usually follow within a few days.
Knowledge
Guides from our engineers
Freeze DryingOct 28, 2026
How Industrial Freeze Drying Works: The Lyophilization Cycle Explained
Freezing, primary drying and secondary drying explained for food plants: temperatures, vacuum levels, cycle times and what decides final product quality.
Buying GuideOct 21, 2026
How to Size an Industrial Freeze Dryer for Your Daily Output
A practical method to choose freeze dryer shelf area from daily raw material, loading density and cycle time — with worked examples for fruit, vegetables and coffee.
Vacuum FryingOct 14, 2026
Vacuum Frying vs Deep Frying: Oil, Colour, Nutrients and Cost
How low-temperature vacuum frying compares with atmospheric deep frying for fruit and vegetable chips: frying temperature, oil uptake, colour, acrylamide and equipment cost.
Next step
Have a product in mind? Let's size the machine.
Send your raw material, daily output and site details. An engineer replies within one business day.