The Great Wall
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| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | DHJF-4002 |
| Instrument Type | Circulating Constant-Temperature Bath |
| Circulation Mode | External Circulation |
| Temperature Control | Refrigeration & Heating Dual-Mode |
| Bath Volume | 2 L |
| Temperature Range | −40 °C to +99 °C |
| Temperature Stability | ±0.2 °C |
| Stirring System | Sealed Magnetic Stirrer with Optional Internal Secondary Stirring |
| Bath Lid | Adjustable Aperture |
| Drain Port | Integrated Drain Valve |
| Compressor | Industrial-Grade Hermetic Compressor |
| Mounting Fixture | Standard Rod Holder for Probes, Burettes, and Sensors |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | DHJF-4005 |
| Temperature Range | −40 °C to 99 °C |
| Temperature Stability | ±0.2 °C |
| Reservoir Volume | 5 L |
| Reservoir Dimensions | Φ250 mm × 130 mm (D × H) |
| Opening Diameter | Φ210 mm |
| Max Flask Capacity | 2000 mL |
| Heating Power | 1500 W |
| Rated Flow Rate | 20 L/min |
| Maximum Pressure | 0.4 bar |
| Ambient Operating Temperature | 5–25 °C |
| Power Supply | 220–240 V~, 50 Hz |
| Cooling Capacity | 1000 W at 10 °C / 450 W at −20 °C / 40 W at −40 °C |
| Refrigerant | R404A |
| Total Power Consumption | 2450 W |
| Housing Material | Cold-Rolled Steel with Electrostatic Powder Coating |
| Overall Dimensions (W×D×H) | 400 mm × 535 mm × 790 mm |
| Net Weight | 56 kg |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Manufacturer |
| Product Category | Domestic |
| Model | DHJF-4005A |
| Instrument Type | Constant-Temperature Bath |
| Circulation Function | External Circulation |
| Temperature Control Mode | Refrigeration & Heating |
| Bath Volume | 5 L |
| Temperature Range | −40 °C to +99 °C |
| Temperature Stability | ±0.2 °C |
| Temperature Resolution | 0.01 °C |
| Total Power Input | 2450 W |
| Heating Power | 1500 W |
| Circulation Pump Power | 100 W |
| Flow Rate | 20 L/min |
| Maximum Pressure | 0.4 bar |
| Magnetic Stirring Power | 50 W |
| Stirring Speed Range | 100–1000 rpm |
| Refrigerant | R404A |
| Cooling Capacity (W) | 1100 @ 90 °C, 720 @ 10 °C, 640 @ −10 °C, 500 @ −20 °C, 310 @ −30 °C, 150 @ −40 °C |
| Power Supply | 220 V AC, 50 Hz |
| Ambient Operating Conditions | 5–35 °C, ≤70% RH |
| External Port | Rc1/2 |
| Opening Diameter | Ø210 mm |
| Bath Dimensions | Ø250 × 130 mm (D × H) |
| Max Flask Capacity Supported | 2000 mL |
| Bath Material | 304 Stainless Steel |
| Overall Dimensions | 385 W × 560 D × 735 H mm |
| Net Weight | 60 kg |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic Instrument |
| Model | DHJF-4010 |
| Instrument Type | Constant-Temperature Bath |
| Circulation Function | External Circulation |
| Temperature Control Mode | Refrigeration & Heating |
| Bath Volume | 10 L |
| Temperature Range | −40 °C to +99 °C |
| Temperature Stability | ±0.2 °C |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | DHJF-4020 |
| Price Range | USD 1,400–7,200 |
| Temperature Range | −40 °C to +99 °C |
| Temperature Stability | ±0.5 °C |
| Bath Volume | 20 L |
| Bath Dimensions (Ø × H) | 300 mm × 300 mm |
| Opening Diameter | 280 mm |
| Max Flask Capacity | 5000 mL |
| Heating Power | 1500 W |
| Refrigeration Capacity | 50–2480 W (at −40 °C to +20 °C ambient) |
| Pump Flow Rate | 20 L/min |
| Pump Pressure | 0.4 bar |
| Ambient Operating Temperature | 5–25 °C |
| Power Supply | 220 V, 50 Hz, Single-Phase |
| Total Power Consumption | 2870 W |
| Housing Material | Cold-Rolled Steel with Electrostatic Powder Coating |
| External Dimensions (L×W×H) | 595 × 535 × 1010 mm |
| Net Weight | 95 kg |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Horizontal |
| Temperature Stability | ±0.5 °C |
| Temperature Uniformity | ±0.5 °C |
| Working Distance | 1 m |
| Temperature Range | −40 °C to 99 °C |
| Bath Opening Diameter | Ø400 mm |
| Heating Power | 6 kW |
| Bath Volume | 50 L |
| External Dimensions | 810 W × 1390 D × 1335 H mm |
| Net Weight | 150 kg |
| Refrigerant | R404A |
| Cooling Capacity (kW) | 10.5 @ 10 °C, 9.2 @ 0 °C, 7.2 @ −10 °C, 4.75 @ −20 °C, 2.45 @ −30 °C, 1.5 @ −40 °C |
| Circulation Pump | 280 W, 30 L/min, 1 bar |
| Magnetic Stirring | 50 W, 100–1000 rpm |
| Power Supply | 3-phase 380 V, 50 Hz |
| Protection Features | Dry-run prevention, overcurrent, overtemperature, leakage, pressure, and delayed start |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | DHJF-8002 Vertical |
| Instrument Type | Constant-Temperature Bath |
| Circulation Mode | Internal Circulation |
| Bath Volume | 2 L |
| Temperature Range | −80 °C to +10 °C |
| Temperature Stability | ±2 °C |
| Rated Power | 1020 W |
| Voltage/Frequency | 220 V~, 50 Hz |
| 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 |
| Opening Diameter | Ø140 mm |
| Bath Dimensions | Ø160 × 105 mm (D × H) |
| Max Flask Capacity | 500 mL |
| Bath Material | 304 Stainless Steel |
| Overall Dimensions | 380 W × 450 D × 860 H mm |
| Net Weight | 60 kg |
| Ambient Operating Conditions | 5–35 °C, ≤70% RH |
| Safety Protections | Dry-run prevention (heating models), overcurrent, overtemperature, and delayed startup protection |
| 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 |
| 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 |
|---|---|
| Model | DHJF-8002W |
| Type | Horizontal stirred reaction bath with integrated refrigeration and heating |
| Temperature Range | −80 °C to +10 °C |
| Temperature Stability | ±2 °C |
| Bath Capacity | 2 L |
| Refrigerants | R404A / R23 |
| Cooling Capacity | 200 W at −40 °C, 120 W at −60 °C, 60 W at −80 °C |
| Heating Function | Yes (with dry-run protection) |
| Magnetic Stirring Power | 50 W |
| Stirring Speed | 100–1000 rpm |
| Bath Opening Diameter | Ø140 mm |
| Bath Internal Dimensions | Ø160 mm × 105 mm depth |
| Max Vessel Capacity | 500 mL |
| Bath Material | 304 stainless steel |
| Overall Dimensions (W×D×H) | 410 × 610 × 495 mm |
| Net Weight | 68 kg |
| Power Supply | 220 V~, 50 Hz |
| Ambient Operating Conditions | 5–35 °C, ≤70% RH |
| Safety Protections | Delayed startup, overcurrent, overtemperature, dry-run (heating mode only) |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | DHJF-8002W |
| Cooling Capacity | 60–200 W |
| Temperature Range | −80 °C to +10 °C |
| Temperature Stability | ±2 °C |
| Bath Volume | 2 L |
| Bath Material | 304 Stainless Steel |
| Stirring | Internal Magnetic Stirrer (50 W, 100–1000 rpm) |
| Power Supply | 220–240 V~, 50 Hz |
| Total Power Consumption | 1024 W |
| Refrigerants | R404A / R23 |
| Condenser Type | Air-Cooled Finned-Tube with Oxygen-Free Copper Coiled Tube |
| Evaporator Design | Immersed Coil-Type in Reservoir |
| Control System | Digital PID Controller with Chinese UI |
| Safety Protections | Delay Start, Leakage Current Protection, Overcurrent & Overtemperature Protection |
| Ambient Operating Conditions | 5–35 °C, ≤70% RH |
| Dimensions (L×W×H) | 450 × 380 × 860 mm |
| Net Weight | 68 kg |
| 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 |
|---|---|
| Model | DHJF-8005C |
| Type | Vertical |
| Temperature Range | −80 °C to +99 °C |
| Temperature Stability | ±0.2 °C |
| Display Resolution | 0.01 °C |
| Bath Volume | 5 L |
| Bath Opening Diameter | Ø210 mm |
| Heating Power | 1500 W |
| Cooling Capacity | 860 W at 90 °C, 410 W at 0 °C, 350 W at −40 °C, 260 W at −60 °C, 80 W at −80 °C |
| Refrigerants | R404A / R23 |
| Circulation Pump Power | 100 W |
| Flow Rate | 20 L/min |
| Max. Pressure | 0.4 bar |
| Magnetic Stirring Power | 50 W |
| Stirring Speed | 100–1000 rpm |
| External Dimensions (W×D×H) | 455×585×1025 mm |
| Net Weight | 100 kg |
| Power Supply | 220 V~, 50 Hz |
| Protection | Over-temperature, over-current, leakage, delay-start, thermal cutoff |
| Communication Interface | RS485 (MODBUS RTU) |
| Compliance | JB/T 4088 (heater), ISO/IEC 17025-aligned manufacturing environment |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Vertical |
| Temperature Stability | ±0.5 °C |
| Operating Temperature Range | −80 °C to +99 °C |
| Bath Opening Diameter | Ø280 mm |
| Bath Volume | 20 L |
| External Dimensions | 760 W × 940 D × 1006 H mm |
| Net Weight | 200 kg |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | DHJF-8020 |
| Instrument Type | Vertical |
| Temperature Stability | ±0.5 °C |
| Operating Temperature Range | −80 °C to +99 °C |
| Bath Opening Diameter | Ø280 mm |
| Heating Power | 2000 W |
| Bath Capacity | Ø350 mm × 270 mm (depth) |
| External Dimensions | 760 W × 940 D × 1006 H mm |
| Net Weight | 200 kg |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Model | DL-400 |
| Instrument Type | Integrated Circulating Chiller |
| Cooling Method | Air-Cooled |
| Temperature Control Range | −15 °C to +25 °C |
| Refrigeration Capacity | 400 W (at 25 °C ambient) |
| Temperature Stability | ±2 °C |
| Circulating Pump Pressure | 0.2 bar |
| Circulating Pump Flow Rate | 17 L/min |
| Reservoir Volume | 3 L |
| Operating Mode | Continuous Duty |
| Power Supply | 220–240 V~, 50 Hz |
| Rated Power | 450 W |
| Refrigerant | R134a |
| Sensor Type | Pt100 RTD |
| Display Resolution | 0.1 °C |
| Safety Protections | Compressor Delay Start, Thermal Overload Protection, Overcurrent Protection |
| Certification | CE (TUV certified) |
| Reservoir Material | SUS304 Stainless Steel |
| External Connection Port | Ø10 mm OD, compatible with silicone tubing (Ø13 × Ø9 mm) |
| Ambient Operating Conditions | 5–35 °C, ≤70% RH |
| Dimensions (W×D×H) | 260 × 410 × 550 mm |
| Net Weight | 26 kg |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Model | DL-400 |
| Instrument Type | Integrated Unit |
| Cooling Method | Air-Cooled |
| Temperature Control Range | −15 °C to 25 °C |
| Refrigeration Capacity | 400 W at 0 °C |
| Temperature Stability | ±2 °C |
| Circulation Pump Pressure | 0.2 bar |
| Circulation Flow Rate | 17 L/min |
| Reservoir Volume | 3 L |
| Operating Mode | Continuous |
| Display Resolution | 0.1 °C (LCD) |
| Sensor Type | Pt100 |
| Safety Protections | Compressor Delay Start, Thermal Overload Protection, Overcurrent Protection |
| Refrigerant | R134a |
| Power Supply | 220–240 V~, 50 Hz |
| Ambient Operating Conditions | 5–35 °C, ≤70% RH |
| Reservoir Material | SUS304 Stainless Steel |
| External Connection | Ø10 mm OD fitting, compatible with silicone tubing (Ø13 × Ø9 mm) |
| Dimensions (W×D×H) | 260 × 410 × 550 mm |
| Net Weight | 26 kg |
| Certification | CE (TUV certified) |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Integrated Unit |
| Cooling Method | Air-Cooled |
| Temperature Range (Heat Transfer Fluid Output) | –15 to 25 °C |
| Refrigeration Capacity at 0 °C | 400 W |
| Temperature Stability | ±2 °C |
| Circulation Pump Pressure | 0.2 bar |
| Circulation Flow Rate | 17 L/min |
| Reservoir Volume | 3 L |
| Operating Mode | Continuous |
| Display Resolution | 0.1 °C |
| Temperature Sensor | Pt100 |
| Compressor Protection | Delayed Start, Thermal Overload, Overcurrent |
| Refrigerant | R134a |
| Power Supply | 220–240 V~, 50 Hz |
| Ambient Operating Conditions | 5–35 °C, ≤70% RH |
| Reservoir Material | SUS304 Stainless Steel |
| External Connection | Ø10 mm OD fitting, compatible with silicone tubing (Ø13 × Ø9 mm) |
| Dimensions (W×D×H) | 260 × 410 × 550 mm |
| Net Weight | 26 kg |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | DL10-1000 |
| Instrument Type | Integrated Unit |
| Cooling Method | Air-Cooled |
| Temperature Range | –10 °C to 25 °C |
| Temperature Stability | ±2 °C |
| Refrigeration Capacity | 1000 W @ 15 °C |
| Circulation Pump Pressure | 1 bar |
| Circulation Flow Rate | 30 L/min |
| Reservoir Volume | 10 L |
| Operation Mode | Continuous |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Equipment Type | Integrated Circulating Chiller |
| Cooling Method | Air-Cooled |
| Temperature Range (Heat Transfer Fluid Output) | −10 °C to 25 °C |
| Refrigeration Capacity | 1000 W (tested at 25 °C ambient) |
| Temperature Stability | ±2 °C |
| Circulating Pump Pressure Range | 1–10 bar |
| Flow Rate | 7 L/min |
| Operating Mode | Continuous |
| Refrigerant | R134a |
| Reservoir Volume | 10 L |
| Reservoir Material | 304 Stainless Steel |
| Power Supply | 220–240 V~, 50 Hz |
| Rated Power | 1165 W |
| Rated Current | 6.2 A |
| Dimensions (W×D×H) | 435 × 690 × 720 mm |
| Net Weight | 73 kg |
| Ambient Operating Conditions | 5–35 °C, ≤70% RH |
| Sensor Type | Pt100 |
| Display | Digital LED |
| External Port | Rc 1/2 internal thread |
| Fill Opening Diameter | Ø60 mm |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | DL10-1000G |
| Instrument Type | Integrated Unit |
| Cooling Method | Air-Cooled |
| Temperature Control Range | −10 °C to 25 °C |
| Refrigeration Capacity | 1000 W @ 25 °C |
| Temperature Stability | ±2 °C |
| Circulating Pump Pressure | 1–10 bar |
| Circulating Pump Flow Rate | 7 L/min |
| Reservoir Volume | 10 L |
| Operation Mode | Continuous |
| Refrigerant | R134a |
| Reservoir Material | 304 Stainless Steel |
| Power Supply | 220–240 V~, 50 Hz |
| Rated Power | 1165 W |
| Rated Current | 6.2 A |
| Ambient Operating Temperature | 5–35 °C |
| Max. Relative Humidity | ≤70% |
| External Port Thread | Rc 1/2 (internal) |
| Fill Opening Diameter | Ø60 mm |
| Dimensions (W×D×H) | 435 × 690 × 720 mm |
| Net Weight | 73 kg |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Model | DL10-1000G |
| Compressor | Embraco hermetic piston compressor (imported) |
| Condenser | Air-cooled finned-tube type with oxygen-free copper spiral tubing |
| Evaporator | 304 stainless steel coil-type, immersed in reservoir |
| Dryer Filter | Danfoss DML series with 100% 3A molecular sieve |
| Circulation Pump | Imported high-pressure vane pump, adjustable pressure output |
| Liquid Level Indicator | Transparent sight tube |
| Pressure Gauge | Front-panel analog gauge |
| Refrigerant | R134a (CFC-free, environmentally compliant) |
| Temperature Control | PID algorithm |
| Temperature Range (no-load) | –10 °C |
| Operating Temperature Range | –10 °C to 25 °C (Tmax ≤ ambient – 5 °C) |
| Temp. Stability | ±2 °C |
| Sensor | Pt100 RTD |
| Power Rating | 1165 W |
| Rated Current | 6.2 A |
| Cooling Capacity | 1000 W (at 25 °C ambient, 15 °C coolant) |
| Reservoir Volume | 10 L |
| Flow Rate | 7 L/min |
| System Pressure Range | 1–10 bar |
| Power Supply | 220–240 V~, 50 Hz |
| Ambient Operating Conditions | 5–35 °C, ≤70% RH |
| External Port | Rc 1/2 internal thread |
| Coolant Fill Opening | Ø60 mm |
| Reservoir Material | SUS304 stainless steel |
| Dimensions (W×D×H) | 435×690×720 mm |
| Net Weight | 73 kg |
| Safety Protections | Compressor delay start, high-pressure cut-off, overload & overcurrent protection |
| 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 |
| Product Category | Domestic |
| Model | DL10-2000G |
| Instrument Type | Integrated Unit |
| Cooling Method | Air-Cooled |
| Temperature Control Range | −10 °C to 25 °C |
| Refrigeration Capacity | 2000 W @ 15 °C |
| Temperature Stability | ±2 °C |
| Circulation Pump Pressure | 1–10 bar |
| Circulation Flow Rate | 7 L/min |
| Reservoir Volume | 17 L |
| Operation Mode | Continuous |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Product Type | Integrated Circulating Chiller |
| Cooling Method | Air-Cooled |
| Temperature Range | −10 °C to 25 °C |
| Cooling Capacity | 3000 W @ 15 °C |
| Temperature Stability | ±2 °C |
| Circulation Pump Pressure | 1 bar |
| Circulation Flow Rate | 30 L/min |
| Reservoir Volume | 30 L |
| Operation Mode | Continuous |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | DL10-3000G |
| Instrument Type | Integrated Unit |
| Cooling Method | Air-Cooled |
| Temperature Control Range | -10 to 25 °C |
| Refrigeration Capacity | 3000 W @ 15 °C |
| Temperature Stability | ±2 °C |
| Circulation Pump Pressure | 1–10 bar |
| Circulation Flow Rate | 16 L/min |
| Reservoir Volume | 30 L |
| Operation Mode | Continuous |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | DL20-900 |
| Instrument Type | Vertical |
| Temperature Range | −20 °C to +25 °C |
| Minimum Empty-Tank Temperature | −20 °C |
| Temperature Stability | ±2 °C |
| Temperature Display | Digital (Pt100 Sensor) |
| Refrigerant | R410A |
| Cooling Capacity | 1650 W at 0 °C, 950 W at −10 °C, 500 W at −20 °C |
| Power Consumption | 1275 W |
| Circulating Pump | 100 W, 20 L/min @ 0.4 bar |
| Reservoir Volume | 10 L |
| Reservoir Material | 304 Stainless Steel |
| External Port | Rc 1/2 internal thread |
| Fill Port Diameter | Ø60 mm |
| Dimensions (W×D×H) | 435 × 690 × 720 mm |
| Net Weight | 70 kg |
| Ambient Operating Conditions | 5–35 °C, ≤70% RH |
| Safety Protections | Compressor delay start, high-pressure cut-off, thermal overload, overcurrent, leakage current, and real-time liquid level monitoring |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Region of Origin | Domestic (China) |
| Model | DL249 Circulating Chiller |
| Instrument Type | Integrated Unit |
| Cooling Method | Air-Cooled |
| Temperature Range | −20 °C to +40 °C |
| Refrigeration Capacity | 900 W |
| Temperature Stability | ±0.5 °C |
| Reservoir Volume | 9 L |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Equipment Type | Integrated Circulating Chiller |
| Cooling Method | Air-Cooled |
| Temperature Control Range | −20 °C to +40 °C |
| Refrigeration Capacity | 900 W at 0 °C |
| Maximum Circulation Pressure | 1.2 bar |
| Maximum Flow Rate | 23 L/min |
| Power Supply | 220–240 V~, 50 Hz |
| Temperature Stability | ±0.5 °C (PID-controlled, Pt100 sensor) |
| Refrigerant | R404A |
| Reservoir Volume | 9 L |
| Reservoir & Evaporator Material | 06Cr19Ni10 (AISI 304 stainless steel) |
| Pump Type | Brushless DC (BLDC) |
| Tubing Material | Silicone Rubber (Φ13×Φ9 mm) |
| Communication Interface | RS-485, Modbus RTU protocol |
| Protection Features | Delayed startup, overheat, overcurrent, high-pressure cutoff |
| IP Rating | IP20 |
| Pollution Degree | Class 2 |
| Dimensions (W×D×H) | 300×480×630 mm |
| Net Weight | 38 kg |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | DL249 |
| Instrument Type | Integrated Unit |
| Temperature Control Range | −20 °C to +40 °C |
| Cooling Capacity | 1300 W @ 20 °C ambient |
| Temperature Stability | ±0.5 °C |
| Circulating Pump Flow Rate | Up to 23 L/min |
| Power Supply | 220–240 V~, 50 Hz |
| Refrigerant | R404A |
| Reservoir Volume | 9 L |
| Reservoir Material | 06Cr19Ni10 (AISI 304 stainless steel) |
| Dimensions (W×D×H) | 300 × 480 × 630 mm |
| Weight | 38 kg |
| Protection Class | IP20 |
| Pollution Degree | 2 |
| Safety Protections | Compressor delay start, overheat, overcurrent, and high-pressure protection |
| Temperature Sensor | Pt100 platinum resistance thermometer |
| Display | Digital LED |
| Inlet/Outlet Port | G1/2 BSP |
| Hose Compatibility | Silicone rubber tubing, Φ13 × Φ9 mm |
| Max. Pump Pressure | 1.2 bar |