the low temperature of freezer

Product Name

Ultra-low Temperature Freezer

Model

LD-20W

LD-30W

LD-40W

LD-60W

LD-90W

LD-120W

LD-180W

Temperature Range ℃

-80°C~ -30°C

Cooling Capacity

At -60°C

30kW

45kW

60kW

90kW

135kW

180kW

270kW

25800Kcal/h

38700Kcal/h

51600Kcal/h

77400Kcal/h

116100Kcal/h

154800Kcal/h

232200Kcal/h

Cooling Capacity

At -75°C

20kW

30kW

40kW

60kW

90kW

120kW

180kW

17200Kcal/h

25800Kcal/h

34400Kcal/h

51600Kcal/h

77400Kcal/h

103200Kcal/h

154800Kcal/h

Circulation Pump

25m³/h

2.5bar max

25m³/h

2.5bar max

25m³/h

2.5bar max

35m³/h

2.5bar max

35m³/h

2.5bar max

50m³/h

2.5bar max

65m³/h

2.5bar max

Inlet & outlet connection size

DN-40 PN-10

DN-40 PN-10

DN-40 PN-10

DN-50 PN-10

DN-50 PN-10

DN-65 PN-10

DN-65 PN-10

Water-cooled type W

(cooling water at 30℃)

35m³/h

45m³/h

65m³/h

90m³/h

120m³/h

180m³/h

250m³/h

Cold storage tank (optional)

1000L

1200L

1500L

2200L

3000L

4000L

5000L

Expansion tank (standard)

500L

600L

750L

1000L

1350L

1800L

2200L

Compressor

Standard: HANBELL screw compressor
Optional: Bitzer screw compressor

Operation Panel

7-inch color touch screen display, temperature curve record, data export to excel format.

Control System

Standard: Single-chip microcomputer controller; Stepping control;

Set temperature difference of refrigeration on & off.

Optional: SIEMENS S7-200PLC & Module

Closed
circulation system

The whole system is a full closed circulation, there is no oil mist at high temperature

and no water vapor at low temperature, pressure do not rise up when system is running.

The system will supplement oil automatically at low temperature.

Circulation pump

Standard: Direct type magnetic pump

Optional: Increase the pipeline magnetic pump pressure in the pipeline

Evaporator

Standard: Braze welding plate heat exchager (BPHE)

Optional: Stainless steel tube heat exchanger

Condenser

Shell and tube type water cooled condenser

Intermediate heat exchanger

KAORI Plate heat exchanger

Dry Filter

Emerson

Drying filter core

Emerson

Expansion tank

Emerson

FDF

Emerson

Oil separator

Emerson

Pressure protector

Emerson

Reservoir

Standard: RSP

Optional: Emerson

Sight glass

Standard: SANHUA            Optional: Danfoss

Refrigeration ball valve

Standard: SANHUA            Optional: Danfoss

Electric

Schneider AC contactor, Schneider intermediate relay

Refrigerant

R404A

Secondary refrigerant

Schneider AC contactor, Schneider intermediate relay

Safety   protection

High pressure protect; Water supply cut-off protection; Over-current protection;

Leakage protection; Sequential and phase failure protection; High temperature protection;

Sensor Failure protection; Liquid low level protection etc. muti-safety protection.

Level Indicator

Adpot glass liquid level indication

Piping material

SUS304

Expansion tank material

SUS304

Case material

Steel channel + Square tube + Cold-rolled blanking plate  painting

Product size

235*145*175

350*150*205

350*150*205

400*180*205

450*200*205

450*200*205

650*220*235

Power

380V 50HZ

69kW max

380V 50HZ

101kW max

380V 50HZ

101kW max

380V 50HZ

200kW

380V 50HZ

295kW max

380V 50HZ

396kW max

380V 50HZ

588kW max

HP

80HP

120HP

160HP

240HP

360HP

480HP

720HP

dB

Within 80dB

Within 90dB

Weight

2200kg

3000kg

3500kg

4000kg

5000kg

6000kg

8000kg