Ultra-Low-Temperature Freezer
Salvum series

The Salvum Series from HAIER provide you with the highest level of sample protection and sustainability at the same time. The newly developed high-efficiency fan motors in combination with the VIP+Hybrid insulation ensure extremely low energy consumption. The exclusively used hydrocarbon (HC) refrigerant is also particularly climate-friendly.

  • Multiple door gaskets reduce loss of cold air from the compartments. There is only little influence to compartment temperature when a door is opened during normal operation.
  • High-efficiency and most reliable cooling blowers allow energy savings and safety on long-term storage (due to temperature control at the compressors)
  • Multiple alarm functions including high-temperature alarm, low-temperature alarm, sensor failure, low battery, high ambient temperature, power breakdown etc. lead to safety of product and equipment.
  • Best recovery time on the market 
  • Housing of painted steel sheet

Control system

Reliable performance

  • The temperature inside the cooling chamber can reach up to -86°C with uniformity within 5°C
  • Wide range of operational voltage from 200V to 260V ­which   allows operating the units even in areas of poor electric supply 

Temperature / Cooling system

  • Microprocessor control system, control range from -40°C to -86°C in increments of 1°C
  • Deep freeze system designed and manufactured under best known practice with components of highest possible quality

Ventilation technique by EBM Papst

  • Reliability test carried out and passed on all models, including ageing test of the control electronics at 85°C and 85% relative humidity
  • Special design of the control system for a well balanced cascade cooling system

Protection devices

  • UL and CE certified for safety in use
  • USB interface for downloading temperature data
  • Safety padlock at the outer door
  • Operable at ambient temperature from 10°C to 32°C
  • Input voltage and ambient temperature are displayed simultaneously to ease supervision of ambient conditions
  • Lockable door handle and/or individual key to avoid that other people, also having a deep freezer, can have access to your valuable samples. Furthermore there is space for an additional padlock for extra safety.
  • CO2 safety system including control, alarm backup and CO2 valve


  • 20 years: VIP+ isolation
  • 6 years: compressor (connected with a maintenance contract)


  • 72h-Battery-Back-Up: Accu-buffering for printer and microprocessor with touch-screen
  • Stainless Steel hinge: Massive hinges on the doors
  • Reindorced removable shelves: For maximum weight loading; adjustable in height
  • PT 100 temperature sensor: In stainless steel housing
  • Remote-alarm: Connection to the GLT in place
  • USB-Interface
  • Vacuum-Release: Port to vacuum drain
  • Prefilter: Simple to exchange


  • Circular paper disk printer: For temperature, fix installed in the control board. As standard equipped with power supply for permanent operation by battery (independent from mains). The removable circular printer paper disks are for 24 hours or 7 days. The actual temperature is written onto the diagram paper by a black felt-tip pen. The temperature is measured inside the chamber.
  • Storage Racks: Optional, ergonomic designed racks for easy storage; In different sizes available
  • CO2-Backup System
Model Type DW-86L338J DW-86L388J DW-86L490J DW-86L578J DW-86L728J DW-86L828J
Cooling performance (°C) -86 -86 -86 -86 -86 -86
Temp. range (°C) -40 – -86 -40 – -86 -40 – -86 -40 – -86 -40 – -86 -40 – -86
Power supply (V/Hz) 220-240/50 220-240/50 220-240/50 220-240/50 220-240/50 220-240/50
Power (A) 7,5 5,0 8,0 9,0 10,0 10,0
Capacity(l/cft) 338/11,9 388/13,7 490/17,3 578/20,4 728/25,7 828/29,2
Net/gross weight (ca.) (kg) 238/278 255/286 295/335 300/330 345/385 380/410
Inner dimensions (B×T×H, mm) 465 x 630 x 1165 465 x 716 x 1310 590 x 630 x 1310 620 x 716 x 1310 766 x 716 x 1310 870 x 716 x 1310
Outer dimensions (B×T×H, mm) 812 x 893 x 1846 812 x 980 x 1980 860 x 900 x 1980 903 x 980 x 1960 1049 x 980 x 1980 1145 x 980 x 1980