About us
We build the machines that take water out of food.
Freeze Dryer Factory is the export equipment brand of Shanghai Mars Industrial Co., Ltd., a Shanghai manufacturer of industrial freeze dryers, vacuum fryers and washing machines.

Who we are
A focused factory, not a catalogue reseller.
We concentrate on three machine families that share the same engineering core — vacuum, refrigeration, heat transfer and hygienic stainless-steel fabrication:
- Industrial freeze dryers — QS-FD-20, QS-FD-100 and QS-FD-200 chambers in three configurations.
- Low-temperature vacuum fryers — 5 kg to 300 kg per batch.
- Oil washing machines — 3 t/h for fruit, vegetables, olives and poultry.
Because the same team designs, welds, wires and tests each machine, we can adapt voltage, heating, controls and layout to your plant without passing you between subcontractors.
What we stand for
Three promises on every order
Tested before it ships
Every machine is assembled, run and filmed. You approve the video before we crate it — and machinery test reports are included.
Honest sizing
We size from shelf area, loading density and your real product, not from headline numbers. If a smaller machine does the job, we say so.
Support for the machine's life
Lifetime warranty on freeze dryers and long-term warranty on fryers, with remote video support and a spare-parts list from day one.
Process
How a project runs
Consult & test
We review your product, output and site, and run your sample on a test machine.
Engineer
Sizing, layout, utility list and a fixed-scope quotation with lead time.
Build & inspect
Fabrication in SUS304, factory acceptance test on video, export packing.
Install & train
Installation guidance, operator training and remote commissioning support.
Company facts
At a glance
| Brand | Freeze Dryer Factory |
|---|---|
| Operating company | Shanghai Mars Industrial Co., Ltd. |
| Location | Shanghai, China |
| Product lines | Industrial freeze dryers · Vacuum fryers · Oil washing machines |
| Models | 10 |
| Materials | SUS304 stainless steel on food-contact parts |
| Quality | Video outgoing inspection · machinery test reports |
| Markets | Export worldwide |
| Languages | English, Chinese |
| Contact | [email protected] · WhatsApp +86 176 2154 1688 |
Next step
Visit the factory, or let us visit your product.
Book a video call or factory visit in Shanghai, or send a sample for a free test run.