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| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | OEM Manufacturer |
| Country of Origin | China |
| Model | DHJF-1020 |
| Quotation | Upon Request |
| Cooling Capacity | 600 W at −60 °C, 480 W at −80 °C, 180 W at −100 °C |
| Temperature Range | −100 °C to −60 °C |
| Temperature Stability | ±2 °C |
| Bath Volume | 20 L |
| Pump Flow Rate | 20 L/min |
| Maximum Pressure | 0.4 bar |
| Circulation Pump Power | 100 W |
| Total Power Consumption | 4 kW |
| Refrigerant | Mixed Cryogenic Refrigerant |
| Evaporator Type | Coil-in-Tank (Immersion) |
| Compressor | Panasonic Hermetic Scroll Compressor |
| Condenser | Air-Cooled Finned-Tube with Oxygen-Free Copper |
| Heat Exchanger Architecture | Single-Stage Compression with Series-Coupled Subcooling Stages |
| Control Interface | LCD Display with Digital Keypad |
| Safety Protections | Phase Sequence Monitoring, Overcurrent Protection, Overtemperature Cut-off, Delayed Start, Thermal Overload Relay |
| Ambient Operating Conditions | 5–35 °C, ≤70% RH |
| Power Supply | 3-phase, 380 V, 50 Hz |
| External Port Size | 1/2″ BSP |
| Bath Opening Diameter | 280 mm |
| Bath Dimensions (Ø × H) | 300 × 300 mm |
| Max Flask Capacity | 5000 mL |
| Bath Material | AISI 304 Stainless Steel |
| Footprint (W × D × H) | 810 × 1160 × 1310 mm |
| Net Weight | 154 kg |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | DHJF-8002W Horizontal |
| Instrument Type | Horizontal |
| Temperature Stability | ±2 °C |
| Operating Temperature Range | −80 °C to +10 °C |
| Bath Opening Diameter | Ø140 mm |
| Bath Volume | 2 L |
| External Dimensions | 410 W × 610 D × 495 H mm |
| Net Weight | 68 kg |
| Refrigerants | R404A / R23 |
| Cooling Capacity | 200 W at −40 °C, 120 W at −60 °C, 60 W at −80 °C |
| Magnetic Stirring Power | 50 W |
| Stirring Speed Range | 100–1000 rpm |
| Heating Protection | Dry-run prevention (heating models only) |
| Safety Protections | Delayed start, overcurrent, overtemperature |
| Power Supply | 220 V~, 50 Hz |
| Ambient Operating Conditions | 5–35 °C, ≤70% RH |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Model | DHJF-1050 |
| Cooling Capacity | 700 W at −60 °C |
| Temperature Range | −100 °C to −60 °C |
| Temperature Stability | ±2 °C |
| Bath Volume | 50 L |
| Pump Flow Rate | 20 L/min |
| Maximum Pressure | 0.4 bar |
| Circulation Pump Power | 100 W |
| Total Power Consumption | 4876 W |
| Display Resolution | 0.1 °C |
| Refrigerant | Mixed Cryogenic Refrigerant |
| Evaporator Type | Coil-in-Tank (Stainless Steel 304) |
| Compressor | Panasonic Hermetic Scroll Compressor |
| Condenser | Air-Cooled Finned-Tube with Oxygen-Free Copper |
| Heat Exchanger Architecture | Single-Stage Compression with Series-Connected Subcooling Stages |
| Safety Protections | Phase Sequence, Overcurrent, Overheat, Delayed Start |
| Ambient Operating Conditions | 5–35 °C, ≤70% RH |
| Power Supply | 3-phase, 380 V, 50 Hz |
| External Port Size | 1/2″ BSP |
| Bath Opening Diameter | 400 mm |
| Bath Dimensions (Ø × H) | 450 × 320 mm |
| Max Flask Capacity | 20 L |
| Unit Dimensions (W × D × H) | 1340 × 820 × 1310 mm |
| Net Weight | 265 kg |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Split-System |
| Cooling Method | Air-Cooled |
| Temperature Range | −30 °C to +10 °C |
| Refrigeration Capacity | 3.5 kW to 28 kW |
| Temperature Stability | ±2 °C |
| Circulating Pump Pressure | 2.2 bar |
| Circulating Pump Flow Rate | 67 L/min |
| Reservoir Volume | 200 L |
| Operation Mode | Continuous Duty |
| Key | Brand: The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | DL10-1000G Circulating Chiller |
| Pricing | Upon Request |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | VT-5000HC |
| Pricing | Available Upon Request |
| Cooling Capacity | 920 W at −10°C, 520 W at −20°C, 280 W at −30°C, 40 W at −40°C |
| Minimum No-Load Temperature | −40°C |
| Cooling Method | Indirect (Closed-Circuit Refrigeration) |
| Temperature Display | Digital, Pt100 Sensor |
| Temperature Setpoint Range | Adjustable Within Operating Range |
| Safety Protections | Delayed Start, Overcurrent Protection, Overtemperature Protection |
| Refrigerant | R404A |
| Cold Trap Chamber Dimensions | Ø250 × 250 mm (Stainless Steel 304) |
| Condenser Flask Dimensions | Ø50 × 300 mm |
| Condenser Flask Material | DIN 3.3 Borosilicate Glass (ISO 3585) |
| Quantity of Flasks | 3 |
| Vacuum Port Interface | Flexible Tubing Fitting, OD 12 mm |
| Ambient Operating Conditions | 5–35°C, ≤70% RH |
| Power Supply | 220–240 V~, 50 Hz |
| Total Power Consumption | 835 W |
| Rated Current | 3.8 A |
| Overall Dimensions (W×D×H) | 537 × 579 × 1094 mm |
| Net Weight | 85 kg |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | ZT-20-200-30H (Air-Cooled) |
| Temperature Range | −30 °C to 200 °C |
| Temperature Stability | ±0.5 °C |
| Power Supply | 220–240 V~, 50 Hz |
| Total Power Consumption | 4.7 kW |
| Cooling Capacity | 1.7 kW at 200 °C / 2.6 kW at 10 °C / 1.1 kW at −10 °C / 0.7 kW at −20 °C / 0.3 kW at −30 °C |
| Refrigerant | R22 |
| Bath Fluid Volume | 10 L |
| Heating Power | 3 kW |
| Pump Flow Rate | 30 L/min |
| Pump Pressure | 1 bar |
| Dimensions (W×D×H) | 580 × 825 × 1370 mm |
| Weight | 172 kg |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Model | ZT-20-200-80H |
| Temperature Stability | ±0.5 °C (at 15–65 °C) |
| Temperature Range | −80 to 200 °C |
| Cooling Capacity | 1.7 kW @ 200 °C, 4.3 kW @ 10 °C, 3.1 kW @ −10 °C, 2.3 kW @ −20 °C, 1.2 kW @ −30 °C, 2 kW @ −35 °C, 1.4 kW @ −60 °C, 0.45 kW @ −78 °C |
| Heating Power | 3 kW |
| Total Power Consumption | 7.9 kW |
| Pump Flow Rate | 30 L/min (max), Pressure: 1 bar (max) |
| Bath Volume | 12 L |
| Display | 7″ color TFT touchscreen, resolution 0.01 °C |
| Communication | RS485, USB |
| Refrigerants | R404A + R23 |
| Protection | Overtemperature, high-pressure refrigeration, leakage, phase sequence, thermal overload, overcurrent, compressor delay start |
| Enclosure | Cold-rolled steel with powder coating |
| IP Rating | IP20 |
| Pollution Degree | 2 |
| Dimensions (W×D×H) | 885 × 1315 × 1565 mm |
| Weight | 393 kg |
| Ambient Operating Conditions | 5–35 °C, ≤70% RH |
| Standard Accessories | 2.6 m insulated stainless-steel flexible hose |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Country of Manufacture | China |
| Model | DHJF-1020 |
| Quotation | Upon Request |
| Refrigerant | Mixed Cryogenic Refrigerant |
| Tank Capacity | 20 L |
| Temperature Range | −100 °C to −60 °C |
| Temperature Stability | ±2 °C |
| Refrigeration Capacity | 600 W at −60 °C |
| Circulation Pump Power | 100 W |
| Flow Rate | 20 L/min |
| Max. Pressure | 0.4 bar |
| Power Supply | 3-phase, 380 V, 50 Hz |
| Total Power Consumption | 4000 W |
| Tank Dimensions (Ø×H) | 300 mm × 300 mm |
| Opening Diameter | 280 mm |
| External Port Size | 1/2″ BSP |
| Compatible Flask Volume | Up to 5000 mL |
| Tank Material | AISI 304 Stainless Steel |
| Unit Dimensions (W×D×H) | 810 × 1160 × 1310 mm |
| Net Weight | 154 kg |
| Ambient Operating Conditions | 5–35 °C, ≤70% RH |
| Safety Protections | Phase sequence monitoring, overcurrent protection, thermal overload cutoff, startup delay logic |
| Operational Constraint | External circulation function disabled when bath temperature < −90 °C |
| Brand | Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic Laboratory Refrigeration Equipment |
| Model | DL10-3000G |
| Cooling Capacity | 3000 W (at 25°C ambient, 15°C coolant) |
| Operating Temperature Range | –10°C to 25°C (max. setpoint ≤ ambient – 5°C) |
| Temperature Stability | ±2°C |
| Control Algorithm | PID |
| Refrigerant | R134a (CFC-free) |
| Pump Flow Rate | 16 L/min |
| Reservoir Volume | 30 L |
| Reservoir Material | SUS304 Stainless Steel |
| External Port | Rc 1/2 internal thread |
| Power Supply | 220–240 V~, 50 Hz |
| Rated Power | 2200 W |
| Rated Current | 11.7 A |
| Dimensions (W×D×H) | 495 × 760 × 860 mm |
| Net Weight | 108 kg |
| Ambient Operating Conditions | 5–35°C, ≤70% RH |
| Safety Protections | Compressor delay start, high-pressure, overload, and overcurrent protection |
| Temperature Sensor | Pt100 |
| Display | Digital temperature readout with integrated level and pressure indicators |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | DLSB-ZC |
| Pricing | Available Upon Request |
| Cooling Capacity | 600–2550 W (at -10 °C to 25 °C) |
| Temperature Range | –10 °C to 25 °C (with ΔT ≥ 5 °C below ambient) |
| Temperature Stability | ±2 °C |
| Vacuum Level | 0.098 MPa (2 kPa absolute) |
| Dual-Function | Simultaneous vacuum generation and low-temperature circulation |
| Vacuum Pump Configuration | 3 independent pumping heads, 10 L/min per head |
| Reservoir Volume | 20 L |
| Circulation Flow Rate | 30 L/min (rated), 280 W pump power |
| Electrical Supply | 220–240 V~, 50 Hz |
| Total Power Consumption | 1650 W |
| Dimensions (W×D×H) | 595 × 475 × 925 mm |
| Compressor | Panasonic |
| Condenser | Air-cooled, custom-designed by Xin’ao |
| Dryer Filter | Danfoss |
| Expansion Device & Evaporator | Zhengzhou Great Wall |
| Controller | Haihong |
| Vacuum Chamber & Insulated Reservoir | Zhengzhou Great Wall |
| Circulation Pump | Jingyi |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | DL10-2000 |
| Instrument Type | Integrated Unit |
| Cooling Method | Air-Cooled |
| Temperature Control Range | −10 to 25 °C |
| Refrigeration Capacity | 2000 W @ 15 °C |
| Temperature Stability | ±2 °C |
| Circulation Pump Pressure | 1 bar |
| Circulation Flow Rate | 30 L/min |
| Reservoir Volume | 17 L |
| Operating Mode | Continuous |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | DHJF-8002W |
| Price | Upon Request |
| Tank Capacity | 2 L |
| Temperature Range | −80 °C to +10 °C |
| Temperature Stability | ±2 °C |
| Total Power | 1020 W |
| Refrigerants | R404A & R23 |
| Cooling Capacity | 200 W at −40 °C / 120 W at −60 °C / 60 W at −80 °C |
| Magnetic Stirring Power | 50 W |
| Stirring Speed | 100–1000 rpm |
| Ambient Operating Temperature | 5–35 °C |
| Max. Relative Humidity | ≤70% |
| Power Supply | 220 V~, 50 Hz |
| Opening Diameter | Ø140 mm |
| Tank Dimensions | Ø160 × 105 mm (D × H) |
| Max. Flask Volume Supported | 500 mL |
| Tank Material | 304 Stainless Steel |
| Overall Dimensions | 410 W × 610 D × 495 H mm |
| Net Weight | 68 kg |
| Safety Protections | Dry-run prevention (for heating models), overcurrent, overtemperature, and startup delay protection |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | LT-100-80 Ultra-Low Temperature Circulating Chiller |
| Instrument Type | Integrated Unit |
| Cooling Method | Air-Cooled |
| Temperature Control Range | −80 °C to −40 °C |
| Refrigeration Capacity | 2.5–10 kW |
| Temperature Stability | ±2 °C |
| Circulating Pump Pressure | 1 bar |
| Circulating Pump Flow Rate | 30 L/min |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Equipment Type | Vertical |
| Temperature Stability | ±0.2 °C |
| Operating Temperature Range | −20 °C to 99 °C |
| Bath Opening Diameter | Ø210 mm |
| Heating Power | 1500 W |
| Bath Volume | 5 L |
| External Dimensions (W×D×H) | 385 mm × 560 mm × 735 mm |
| Net Weight | 55 kg |
| Refrigerant | R404A |
| Refrigeration Capacity | 570 W at 10 °C, 470 W at 0 °C, 385 W at −10 °C, 230 W at −20 °C |
| Circulation Pump Flow Rate | 20 L/min |
| Max. Pressure | 0.4 bar |
| Magnetic Stirring Power | 50 W |
| Stirring Speed Range | 100–1000 rpm |
| Input Power Supply | 220 V~, 50 Hz |
| Protection Functions | Dry-run prevention (heating), overtemperature, overcurrent, leakage current, thermal delay, and overheat safeguards |
| Ambient Operating Conditions | 5–35 °C, ≤70% RH |
| Bath Material | 304 Stainless Steel |
| Max. Flask Capacity Supported | 2000 mL |
| External Circulation Port | Rc1/2 |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Product Type | Integrated Circulating Chiller |
| Cooling Method | Air-Cooled |
| Temperature Control Range | −30 °C to +5 °C |
| Refrigeration Capacity | 300–1750 W (at −25 °C to 0 °C) |
| Temperature Stability | ±2 °C |
| Circulation Pump Pressure | 0.4 bar |
| Circulation Flow Rate | 20 L/min |
| Reservoir Volume | 17 L |
| Operating Mode | Continuous Duty |
| Refrigerant | R410A |
| Power Supply | 220–240 V~, 50 Hz |
| Rated Power | 1475 W |
| Rated Current | 7.8 A |
| Reservoir Material | 304 Stainless Steel |
| Dimensions (W×D×H) | 465 × 690 × 820 mm |
| Net Weight | 80 kg |
| Ambient Operating Conditions | 5–35 °C, ≤70% RH |
| Sensor Type | Pt100 |
| External Port | Rc 1/2 internal thread |
| Fill Opening Diameter | Ø60 mm |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | DHJF-8002W |
| Instrument Type | Horizontal |
| Temperature Uniformity | ±2 °C |
| Operating Temperature Range | −80 °C to +10 °C |
| Bath Opening Diameter | Ø140 mm |
| Bath Volume | 2 L |
| External Dimensions (W×D×H) | 410 mm × 610 mm × 495 mm |
| Net Weight | 68 kg |
| Refrigerants | R404A and R23 |
| Magnetic Stirring Power | 50 W |
| Stirring Speed Range | 100–1000 rpm |
| Cooling Capacity | 200 W at −40 °C, 120 W at −60 °C, 60 W at −80 °C |
| Heating Protection | Dry-run prevention (for heated variants) |
| Safety Protections | Delayed startup, overcurrent, and overtemperature protection |
| Power Supply | 220 V~, 50 Hz |
| Ambient Operating Conditions | 5–35 °C, ≤70% RH |
| Bath Material | 304 Stainless Steel |
| Max Flask Capacity Supported | 500 mL |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | DLSB-ZC |
| Operating Temperature Range (°C) | –10 to 25 |
| Ambient Temperature Range (°C) | 5 to 25 |
| Temperature Stability (°C) | ±2 |
| Total Power Consumption (W) | 1650 |
| Electrical Supply | 220–240 V~, 50 Hz |
| Reservoir Capacity (L) | 20 |
| Refrigeration Capacity (W) | 600–2550 |
| Circulation Pump Power (W) | 280 |
| Rated Flow Rate (L/min) | 30 |
| Maximum Output Pressure (bar) | 1.0 |
| Ultimate Vacuum (MPa) | –0.098 (equivalent to 2 kPa absolute) |
| Number of Vacuum Ports | 3 |
| Single-Port Pumping Speed (L/min) | 10 |
| Dimensions (mm) | 595 W × 475 D × 925 H |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | LT-100-80 |
| Output Temperature Range | −80 °C to −40 °C |
| Temperature Stability | ±2 °C |
| Temperature Display | Digital |
| Sensor Type | Pt100 |
| Safety Protections | Compressor Delay Start, High-Pressure, Overload, Overcurrent, Phase Sequence, Liquid Overflow |
| Rated Input Power | 19300 W |
| Rated Current | 34.5 A |
| Cooling Capacity | 10000 W at −40 °C, 6000 W at −60 °C, 2500 W at −80 °C |
| Refrigerants | R404A & R23 |
| Heat Transfer Fluid Volume | 24 L |
| Circulation Pump Power | 280 W |
| Flow Rate | 30 L/min |
| Max. System Pressure | 1 bar |
| Power Supply | 3-phase, 380 V, 50 Hz |
| Ambient Operating Temp. | 5–35 °C |
| Relative Humidity Limit | ≤70% |
| External Port | Rc 1/2 internal thread |
| Fluid Fill Opening Diameter | Ø60 mm |
| Reservoir Material | SUS304 stainless steel |
| Dimensions (W×D×H) | 867×1475×1598 mm |
| Net Weight | 600 kg |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Product Type | Integrated Circulating Chiller |
| Cooling Capacity | 680 W at 10°C |
| Temperature Stability | ±2°C |
| Operating Temperature Range | −20°C to +25°C |
| Reservoir Volume | 5 L |
| Controller | LCD with Pt100 Sensor (0.1°C Resolution) |
| Refrigerant | R404A |
| Pump Flow Rate | 22 L/min (Max), 1.1 bar (Max Pressure) |
| Power Input | 220 V~, 50 Hz, 670 W |
| Protection | Overcurrent, Overheat, High-Pressure, Ground Fault, Delayed Start |
| IP Rating | IP20 |
| Ambient Operating Conditions | 5–35°C, ≤70% RH |
| Reservoir & Piping Material | 304 Stainless Steel |
| Evaporator | 304 Stainless Steel Coil-in-Tank Design |
| Compressor | Hermetic Piston Type |
| Condenser | Air-Cooled with Oxygen-Free Copper Finned Tube |
| Expansion Device | Capillary Tube |
| Communication Interface | RS485 / MODBUS RTU Protocol |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Integrated Unit |
| Cooling Method | Air-Cooled |
| Temperature Range | −30 °C to +200 °C |
| Refrigeration Capacity | 0.3 kW (at −30 °C) to 1.7 kW (at +200 °C) |
| Temperature Stability | ±0.5 °C |
| Circulation Pump Pressure | 1 bar |
| Circulation Flow Rate | 30 L/min |
| Reservoir Volume | 20 L |
| Operating Mode | Continuous Duty |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Model | VT-2000H |
| Cooling Capacity | 640 W at −10°C / 400 W at −20°C / 200 W at −30°C / 20 W at −40°C |
| Minimum No-Load Temperature | −40°C |
| Cooling Method | Direct refrigeration |
| Temperature Display | Digital, Pt100 sensor |
| Setpoint Range | Adjustable within operational range |
| Safety Protections | Delayed start, overcurrent protection, overtemperature cutoff |
| Dehumidification Capacity | Up to 1 kg (water-based systems) |
| Refrigerant | R404A |
| Trap Chamber Dimensions | Ø160 × 240 mm |
| Chamber Material | 06Cr19Ni10 (AISI 304 stainless steel) |
| Condenser Options | Stainless steel chamber or optional borosilicate glass cold trap flask |
| Compatible Media | Water, ethanol (stainless chamber) |
| Vacuum Port | Flexible hose fitting, OD Ø12 mm |
| Ambient Operating Conditions | 5–35°C, ≤70% RH |
| Power Supply | 220–240 V~, 50 Hz |
| Input Power | 819 W |
| Input Current | 3.7 A |
| Overall Dimensions (W×D×H) | 360 × 590 × 889 mm |
| Net Weight | 60 kg |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Model | DLSB-5/20B |
| Cooling Capacity | 650 W at 10°C, 580 W at 0°C, 490 W at −10°C, 280 W at −20°C |
| Temperature Range | −20°C to +25°C (ambient ≤35°C) |
| Temperature Stability | ±2°C |
| Temperature Display Resolution | 0.1°C |
| Refrigerant | R404A (CFC-free, ozone-friendly) |
| Compressor | Embraco hermetic piston compressor |
| Condenser | Air-cooled finned-tube with oxygen-free copper coil |
| Evaporator | 304 stainless steel coiled tube immersed in reservoir |
| Circulating Pump | 304 stainless steel shielded pump, leak-proof at low temperatures |
| Reservoir Volume | 5 L |
| Flow Rate | 20 L/min |
| Max. Pressure | 0.4 bar |
| Power Supply | 220–240 V~, 50 Hz |
| Rated Power | 635 W |
| Protection | Delay start, overcurrent, overheat, grounding, high-pressure |
| Enclosure Rating | IP20 |
| Pollution Degree | Class II |
| Communication Interface | RS485, MODBUS RTU protocol |
| Safety Certification | CE compliant |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Country of Origin | China |
| Model | DHJF-1205 |
| Quotation | Upon Request |
| Refrigeration System | Single-stage compression with cascade sub-cooling technology |
| Temperature Range | −120 °C to −60 °C |
| Temperature Stability | ±2 °C |
| Bath Volume | 5 L |
| Refrigerant | Mixed refrigerant blend |
| Cooling Capacity | 110 W at −60 °C |
| Stirring Power | 50 W |
| Stirring Speed | 100–1000 rpm |
| Display Resolution | 0.1 °C |
| Input Power | 820 W |
| Voltage/Frequency | 220–240 V~, 50 Hz |
| Bath Material | 304 stainless steel |
| External Dimensions (W×D×H) | 630 × 795 × 790 mm |
| Net Weight | 125 kg |
| Ambient Operating Conditions | 5–35 °C, ≤70% RH |
| Drain Port | 1/2″ BSP |
| Bath Opening Diameter | Ø210 mm |
| Bath Internal Dimensions | Ø220 × 180 mm |
| Max Flask Capacity | 2000 mL |
| Safety Protections | Delayed start, overcurrent, and overtemperature protection |
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