Empowering Scientific Discovery

Zhengzhou Great Wall Scientific Industrial & Trading Co., Ltd.

Categories
  • All
  • Favorite
  • Popular
  • Most rated
Added to wishlistRemoved from wishlist 0
Add to compare
BrandThe Great Wall
ModelDHJF-8002W
TypeHorizontal stirred reaction bath with integrated refrigeration and heating
Temperature Range−80 °C to +10 °C
Temperature Stability±2 °C
Bath Capacity2 L
RefrigerantsR404A / R23
Cooling Capacity200 W at −40 °C, 120 W at −60 °C, 60 W at −80 °C
Heating FunctionYes (with dry-run protection)
Magnetic Stirring Power50 W
Stirring Speed100–1000 rpm
Bath Opening DiameterØ140 mm
Bath Internal DimensionsØ160 mm × 105 mm depth
Max Vessel Capacity500 mL
Bath Material304 stainless steel
Overall Dimensions (W×D×H)410 × 610 × 495 mm
Net Weight68 kg
Power Supply220 V~, 50 Hz
Ambient Operating Conditions5–35 °C, ≤70% RH
Safety ProtectionsDelayed startup, overcurrent, overtemperature, dry-run (heating mode only)
Added to wishlistRemoved from wishlist 0
Add to compare
BrandGreat Wall
OriginHenan, China
Manufacturer TypeDirect Manufacturer
Country of OriginChina
ModelDL30-2500
Cooling Capacity (W)6000 @ 0°C
Temperature Range (°C)−30 to +5
Temperature Stability (°C)±2
Ambient Temp. Range (°C)5–35
Ambient Humidity (% RH)≤70%
Power Supply3-phase, 380 V, 50 Hz
RefrigerantR404A (non-CFC, ozone-friendly)
Reservoir Volume (L)40
Pump Flow Rate (L/min)30
Max. System Pressure (bar)1
External Port Size3/4" BSP/Female NPT
Reservoir MaterialSUS304 stainless steel
Dimensions (W×D×H, mm)650 × 1055 × 1070
Net Weight (kg)195
CompressorTecumseh (original imported hermetic piston type)
CondenserAir-cooled finned-tube with oxygen-free copper spiral tubing
EvaporatorFully brazed plate heat exchanger (AISI 316 stainless steel plates, design temp. −160 to +200°C)
Dryer-FilterDanfoss DML series with 3A molecular sieve core
Expansion ValveDanfoss serviceable thermostatic expansion valve (adjustable superheat)
Circulation PumpHigh-performance stainless steel centrifugal pump (leak-proof at low temperatures)
Control SystemMicroprocessor-based digital controller with Chinese-language UI (fully programmable setpoints, real-time monitoring)
Safety ProtectionsPhase sequence detection, delayed start, overcurrent, overtemperature, ground fault, and high-pressure cut-off
Enclosure IP RatingIP44
System TypeHermetically sealed closed-loop circulation
Integrated FeaturesLiquid level indicator, system pressure gauge, particulate filter, refrigerant charge monitoring
Added to wishlistRemoved from wishlist 0
Add to compare
BrandGreat Wall
ModelSY-20-160
Temperature Range+5 °C above ambient to 160 °C
Temperature Stability±0.5 °C
Heating Power3 kW
Circulation Flow Rate≤42 L/min
Max. Pressure2.8 bar
Pump Power370 W
Heat Transfer Fluid Capacity9 L
External Cooling CoilYes (water-cooled)
Protection FunctionsOvertemperature, leakage current, thermal overload, overcurrent, phase sequence
Power Supply220–240 V~, 50 Hz
IP RatingIP20
Pollution Degree2
Dimensions (W×D×H)430×690×1075 mm
Weight60 kg
Added to wishlistRemoved from wishlist 0
Add to compare
BrandGreat Wall
OriginHenan, China
Manufacturer TypeDirect Manufacturer
Country of OriginChina
ModelDL30-700
Cooling Capacity (W)1750 @ 0°C
Temperature Range (°C)−30 to +5
Temperature Stability (°C)±2
Ambient Temp. Range (°C)5–35
Ambient Humidity (% RH)≤70
Power Supply220–240 V, 50 Hz
RefrigerantR410A (CFC-free)
Reservoir Volume (L)17
Pump Flow Rate (L/min)20
Max. System Pressure (bar)0.4
Reservoir MaterialSUS304 Stainless Steel
External Port Size1/2" NPT
Dimensions (W×D×H, mm)465 × 690 × 820
Net Weight (kg)80
Safety ProtectionsDelayed Start, Leakage Detection, Overcurrent, Overtemperature
DisplayDigital Microcontroller with Chinese UI
Liquid Level IndicatorIntegrated Visual Gauge
System Pressure GaugeInstalled
FiltrationIn-line Particulate Filter
Dryer FilterDanfoss DML Series with 3A Molecular Sieve
CompressorPanasonic Wakō Scroll-Type Rotary Compressor
CondenserAir-Cooled Finned-Tube with Oxygen-Free Copper Spiral Tube
EvaporatorImmersed Coil-Type in Reservoir
Circulation SystemHermetically Sealed, Leak-Proof Stainless Steel Loop
Added to wishlistRemoved from wishlist 0
Add to compare
BrandGreat Wall
OriginHenan, China
Manufacturer TypeDirect Manufacturer
ModelHX-3010
Temperature Range−30 °C to +99 °C
Temperature Stability±0.2 °C
Display Resolution0.1 °C
Heating Power1600 W
RefrigerantR404A
Max. Pump Pressure0.2 bar
Max. Flow Rate10 L/min
Reservoir Volume10 L
Reservoir Opening120 mm (W) × 141 mm (D)
Reservoir Depth145 mm
Dimensions (W×D×H)255 mm × 490 mm × 693 mm
Weight55 kg
Power Supply220–240 V~, 50 Hz
Total Power Consumption2160 W
Communication InterfaceRS485
Enclosure MaterialCold-Rolled Steel with Electrostatic Powder Coating
IP RatingIP20
Pollution Degree2
Operating Ambient5–35 °C, ≤70% RH
Added to wishlistRemoved from wishlist 0
Add to compare
BrandThe Great Wall
OriginHenan, China
Manufacturer TypeDirect Manufacturer
Country of OriginChina
ModelHT-1500
Cooling MethodAir-Cooled
RefrigerantR410A
Temperature Control ModePID
Ambient Operating Conditions5–40°C / 30–70% RH
Setpoint Range5–40°C
Cooling Capacity1500 W
Temperature Stability±0.2°C
Circulation Pump Max Pressure0.14 MPa
Circulation Pump Max Flow Rate40 L/min
Reservoir Volume5 L
Heat Transfer Fluid OptionsDeionized Water or 15% Ethylene Glycol Solution
Inlet/Outlet Port SizeRc1/2
Refill Pressure Range0.2–0.5 MPa
Refill Temp Range5–40°C
Refill Rate1 L/min
Refill Port SizeRc3/8
Overflow Port SizeRc3/4
Safety ProtectionsOverpressure, Overcurrent, Thermal Overload, Overheat, Low-Level Liquid Detection
Total Power Consumption1160 W
Input Current6.2 A
Power Supply220–240 V~, 50 Hz
Dimensions (W×D×H)403×576×645 mm
Noise Level68 dB(A) @ 1 m (front, no load, steady state)
Net Weight50 kg
Communication InterfacesRS485, RS232, ZigBee Wireless
Data LoggingInternal Auto-Storage + USB Export
Added to wishlistRemoved from wishlist 0
Add to compare
BrandThe Great Wall
OriginHenan, China
Manufacturer TypeDirect Manufacturer
Country of OriginChina
ModelSY-100-250
Temperature Range+5 °C above ambient to 250 °C
Temperature Stability±0.5 °C
Circulation Flow Rate120 L/min
Maximum Pressure1.5 bar
Heating Power12 kW
Total Power Consumption12.75 kW
Pump Power750 W
Heat Transfer Fluid Capacity17 L
External Cooling InterfaceR2 3/4
Power Supply3-phase, 380 V, 50 Hz
IP RatingIP20
Pollution Degree2
Dimensions (W×D×H)640×940×1585 mm
Weight185 kg
Safety ProtectionsOvertemperature, leakage current, thermal overload, phase sequence, and overcurrent protection
Heat Transfer MediumThermal oil
Added to wishlistRemoved from wishlist 0
Add to compare
BrandGreat Wall
OriginHenan, China
Manufacturer TypeDirect Manufacturer
Country of OriginChina
ModelDL30-300
PricingUpon Request
Added to wishlistRemoved from wishlist 0
Add to compare
BrandGreat Wall
OriginHenan, China
Manufacturer TypeDirect Manufacturer
Country of OriginChina
ModelDL30-1000
Cooling Capacity (W)2800 @ 0°C
Temperature Range (°C)−30 to +5
Temperature Stability (°C)±2
Ambient Temp. Range (°C)5–35
Ambient Humidity≤70% RH
Power Supply220–240 V~, 50 Hz
RefrigerantR410A (non-ozone-depleting)
Reservoir Volume30 L
Pump Flow Rate20 L/min
Max. System Pressure0.4 bar
Reservoir MaterialSUS304 Stainless Steel
External Port Size1/2" NPT
Dimensions (W×D×H, mm)495 × 760 × 860
Net Weight100 kg
Safety ProtectionsCompressor delay start, leakage current protection, overcurrent cutoff, overtemperature shutdown
ControllerMicroprocessor-based digital controller with Chinese-language interface (display only
Added to wishlistRemoved from wishlist 0
Add to compare
BrandGreat Wall
OriginHenan, China
Manufacturer TypeOriginal Equipment Manufacturer (OEM)
Country of OriginChina
ModelDL-400
PricingAvailable Upon Request
Added to wishlistRemoved from wishlist 0
Add to compare
BrandThe Great Wall
OriginHenan, China
Manufacturer TypeDirect Manufacturer
Country of OriginChina
ModelSY-200-200
Temperature Range+5 °C above ambient to 200 °C
Temperature Stability±0.5 °C
Circulation Flow Rate150 L/min
Maximum Pressure2.5 bar
Heating Power24 kW
Total Power Consumption24.75 kW
Pump Power750 W
Heat Transfer Fluid Capacity25 L
External Cooling InterfaceR21 (cooling coil supplied)
Power Supply3-phase, 380 V, 50 Hz
IP RatingIP20
Pollution Degree2
Dimensions (W×D×H)610 × 940 × 1590 mm
Weight240 kg
Safety ProtectionsIndependent overtemperature cutoff, earth leakage protection, thermal overload protection, phase sequence monitoring, overcurrent protection
Added to wishlistRemoved from wishlist 0
Add to compare
BrandThe Great Wall
ModelHX-2505G
Temperature Range−25 °C to 200 °C
Temperature Stability±0.2 °C
Display Resolution0.1 °C
Heating Power1.1 kW
Refrigeration Capacity0.07 kW @ −25 °C to 0.5 kW @ 200 °C
Pump Flow Rate≤10 L/min
Pump Pressure≤0.2 bar
Bath Volume6 L
External PortM16×1
Dimensions (W×D×H)376×554×740 mm
Weight50 kg
Power Supply220–240 V~, 50 Hz
IP RatingIP20
RefrigerantR404A
Ambient Operating Conditions5–35 °C, ≤70% RH
Show next
InstrumentHive
Logo
Compare items
  • Total (0)
Compare
0