Compare a larger HFD group instead of assuming extra material can be crowded onto five trays.
HFD-5S model decision page
HFD-5S Freeze Dryer for 4–6 kg Small Batches
The HFD-5S sits at the upper end of Lanphan's compact range. It is a sensible model to review when a 2–3 kg test machine is too small, but a 10–12 kg HFD-8 would leave more capacity than the current workload needs.
- Batch reference
- 4–6 kg
- Tray count
- 5
- Cold trap
- -40°C
- Listed supply
- 220V*
*Voltage and the final electrical configuration must be confirmed in the written quotation.
Where it fits
Choose this size from a normal working batch, not a best-case load
The 4–6 kg figure is a starting reference. The useful load still changes with product size, water content, spacing and the depth placed on each tray.
HFD-5S is worth discussing when:
- Your regular raw batch is above the 2–3 kg group.
- Five trays match the way the product must be spread or separated.
- You are testing a repeatable small-batch routine rather than occasional samples only.
- A written process requirement does not call for a colder trap than -40°C.
Before comparing prices
Load one tray the way production will actually run
A photo and raw weight from one representative tray are more useful than a product name alone. They show whether pieces need gaps, whether slices overlap and how the listed batch range relates to the real loading pattern.
Product and piece size
Raw weight on one tray
Layer depth or spacing
Expected batches per week
Nearby model check
Compare HFD-5S with the nearest size and cold-trap options
This is the useful comparison set for a small-batch buyer. Moving to a different model should solve a real loading or process requirement.
| Model | Listed batch | Trays | Cold trap | Reason to compare |
|---|---|---|---|---|
| HFD-4 | 4–6 kg | 4 | -55°C | One fewer tray and a colder listed trap. |
| HFD-5 | 4–6 kg | 5 | -55°C | Same listed batch group and tray count, with a colder listed trap. |
| HFD-5S | 4–6 kg | 5 | -40°C | Current page: compact five-tray option. |
| HFD-8 | 10–12 kg | 8 | -60°C | Compare when the real tray load or routine batch has outgrown the compact group. |
Figures above come from the current Lanphan HFD model sheet. Ask for the final configuration and electrical details in writing.
Selection boundary
When HFD-5S is probably the wrong shortlist
Compare the -55°C or -60°C listed options and have the process requirement reviewed before pricing.
A larger dryer does not solve preparation, unloading or packing limits. Check the full batch-to-pack routine first.
Useful quotation input
Send enough detail to confirm the model, not just ask for a price
A useful reply should confirm whether HFD-5S remains the right comparison after the real tray load and site power are known.
- 01MaterialPhoto, size, thickness and condition before drying
- 02LoadRaw weight per tray or per normal batch
- 03RoutineBatches per day or week and packing plan
- 04SiteDestination country and available voltage
HFD-5S review
Have one real tray load checked before choosing the compact range
Send a product photo, tray load, batch routine, country and voltage. The reply can then compare HFD-5S with the nearest HFD option on the same basis.