Common Laboratory Equipment
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| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Circulating Constant-Temperature Bath |
| Circulation Mode | External Recirculation |
| Temperature Control | Dual-mode (Refrigeration & Heating) |
| Bath Volume | 5 L |
| Temperature Range | −40 °C to +99 °C |
| Temperature Stability | ±0.2 °C |
| Heating Power | 1500 W |
| Pump Flow Rate | 20 L/min |
| Maximum Pressure | 0.4 bar |
| Power Supply | 220 V / 50 Hz |
| Total Power Consumption | 2450 W |
| External Dimensions (L×W×H) | 415 × 365 × 740 mm |
| Net Weight | 56 kg |
| Housing Material | Cold-Rolled Steel with Electrostatic Powder Coating |
| Ambient Operating Temperature | 5–25 °C |
| Opening Diameter × Depth | Ø250 × 130 mm |
| Drain Valve | Integrated |
| Stirring System | Sealed Magnetic Stirrer with Optional Internal Secondary Stirring |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | DHJF-4010 |
| Instrument Type | Vertical |
| Temperature Stability | ±0.2 °C |
| Temperature Range (Heat Transfer Fluid Output) | −40 °C to +99 °C |
| Bath Opening Diameter | Ø210 mm |
| Bath Volume | 10 L |
| External Dimensions (W×D×H) | 485 mm × 590 mm × 935 mm |
| Net Weight | 84 kg |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | DHJF-4020 |
| Price | Upon Request |
| Refrigerant | R404A |
| Bath Volume | 20 L |
| Temperature Range | −40 °C to +99 °C |
| Temperature Stability | ±0.5 °C |
| Ambient Operating Conditions | 5–35 °C, ≤70% RH |
| Power Supply | 220–240 V~, 50 Hz |
| Total Power Consumption | 2870 W |
| Heating Power | 1500 W |
| Cooling Capacity | 2100 W (at 10 °C), 1750 W (at 0 °C), 1300 W (at −10 °C), 900 W (at −20 °C), 480 W (at −30 °C), 150 W (at −40 °C) |
| Circulation Pump | Stainless-steel shielded pump, 100 W, 20 L/min @ 0.4 bar |
| Stirring | Internal magnetic stirring, 50 W, 100–1000 rpm |
| Stirring Port Opening | Φ280 mm |
| Inner Bath Dimensions | Φ300 × 300 mm |
| Max Flask Capacity | 5000 mL (user-supplied) |
| Bath Material | 304 stainless steel |
| External Footprint | 535 W × 595 D × 1010 H mm |
| Net Weight | 95 kg |
| Brand | Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Circulating Constant-Temperature Bath |
| Circulation Mode | External Circulation |
| Temperature Control | Refrigeration & Heating Dual-Mode |
| Bath Volume | 5 L |
| Temperature Range | –80 °C to +99 °C |
| Temperature Stability | ±0.2 °C |
| Total Power Input | 3260 W |
| Power Supply | 220 V~, 50 Hz |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Constant-Temperature Circulating Bath |
| Circulation Mode | External Circulation |
| Temperature Control | Refrigeration & Heating Dual-Mode |
| Bath Volume | 5 L |
| Temperature Range | −80 °C to +99 °C |
| Temperature Stability | ±0.2 °C |
| Stirring | Integrated Magnetic Stirrer (Dual-Point: Bath & Sample Vessel) |
| Lid | Adjustable Telescopic Cover |
| Accessories | Universal Mounting Bracket for Burettes, Probes, and Sensors |
| Safety | Dry-Burn Protection (Heating Mode) |
| Brand | Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Equipment Type | Integrated Circulating Chiller |
| Cooling Method | Air-Cooled |
| Temperature Control Range | −15 °C to 25 °C |
| Temperature Stability | ±2 °C |
| Refrigeration Capacity | 400 W @ 0 °C |
| Circulating Pump Flow Rate | 17 L/min |
| Pump Pressure | 0.2 bar |
| Reservoir Volume | 3 L |
| Power Supply | 220–240 V~, 50 Hz |
| Refrigerant | R134a |
| Sensor | Pt100 |
| Display Resolution | 0.1 °C |
| Safety Protections | Compressor Delay Start, Thermal Overload Protection, Overcurrent Protection |
| Certifications | CE (TUV certified) |
| Ambient Operating Conditions | 5–35 °C, ≤70% RH |
| Reservoir Material | SUS304 Stainless Steel |
| External Connection | Ø10 mm OD, compatible with silicone tubing (Ø13×Ø9 mm) |
| Dimensions (W×D×H) | 260×410×550 mm |
| Net Weight | 26 kg |
| Brand | Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Country of Origin | China |
| Model | DL-400 |
| Pricing | Available Upon Request |
| Brand | Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Integrated Unit |
| Cooling Method | Water-Cooled |
| Temperature Range | −15 °C to 25 °C |
| Refrigeration Capacity | 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 Duty |
| Brand | Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | DL10-3000G |
| Price Range | USD 1,400–7,200 |
| Compressor | Copeland Scroll (Dual-Flex Design) |
| Condenser | Air-Cooled Finned-Tube with Oxygen-Free Copper Helical Tubes |
| Evaporator | 304 Stainless Steel Coil-in-Tank Type |
| Drier Filter | Danfoss DML Series (3A Molecular Sieve) |
| Circulation Pump | Imported High-Pressure Rotary Vane Pump (Adjustable Pressure) |
| Refrigerant | R134a (CFC-Free, ODP = 0) |
| Temperature Control Algorithm | PID |
| Temperature Stability | ±2 °C |
| Display | Digital (Pt100 Sensor) |
| Cooling Capacity | 3000 W (at 25 °C ambient, 15 °C coolant) |
| Minimum Operating Temperature (No Load) | −10 °C |
| Usable Temperature Range | −10 °C to (Ambient − 5) °C |
| Reservoir Volume | 30 L |
| Flow Rate | 16 L/min |
| System Pressure Range | 1–10 bar |
| Power Input | 220–240 V~, 50 Hz |
| Rated Power | 2200 W |
| Rated Current | 11.7 A |
| Ambient Operating Conditions | 5–35 °C, ≤70% RH |
| Reservoir Material | SUS304 Stainless Steel |
| External Port | Rc 1/2 Internal Thread |
| Coolant Fill Opening | Ø60 mm |
| Dimensions (W×D×H) | 495 × 760 × 860 mm |
| Net Weight | 108 kg |
| Safety Protections | Compressor Delay Start, High-Pressure Cut-off, Overload & Overcurrent Protection |
| Dual-Stage Filtration | At Fill Port & Reservoir Outlet |
| Level Indicator | Transparent Sight Tube |
| Pressure Gauge | Front-Mounted Analog Dial |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Model | DL10-3000G |
| Cooling Capacity | 3000 W (at 25°C ambient, 15°C coolant) |
| Temperature Range | –10°C to 25°C (with ΔT ≤ room temp – 5°C) |
| 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 |
| Power Supply | 220–240 V~, 50 Hz |
| Rated Power | 2200 W |
| Rated Current | 11.7 A |
| External Port | Rc 1/2 internal thread |
| Reservoir Fill Opening | Ø60 mm |
| 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 LED |
| Evaporator | 304 stainless steel coil-in-tank design |
| Condenser | Air-cooled finned-tube with oxygen-free copper spiral tubing |
| Compressor | Copeland Scroll (dual-flex design) |
| Dryer Filter | Danfoss DML series with 3A molecular sieve |
| Circulation Pump | Imported high-pressure rotary vane pump |
| Dual-stage filtration | at fill port and reservoir outlet |
| Liquid Level Indicator | Transparent sight tube |
| System Pressure Gauge | Front-panel analog gauge |
| 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 | Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | DL30-1000 |
| 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 Supply | 220–240 V~, 50 Hz |
| Refrigerant | R410A (non-ozone-depleting) |
| Reservoir Volume | 30 L |
| Pump Flow Rate | 20 L/min |
| Max. System Pressure | 0.4 bar |
| Reservoir Material | SUS304 Stainless Steel |
| External Port Size | 1/2" NPT |
| Dimensions (W×D×H, mm) | 495 × 760 × 860 |
| Net Weight | 100 kg |
| Safety Protections | Compressor delay start, leakage current protection, overcurrent cutoff, overtemperature shutdown |
| Controller | Microprocessor-based digital controller with Chinese-language interface (display only |
| Brand | Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | DL30-2500 |
| 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 Supply | 3-phase, 380 V, 50 Hz |
| Refrigerant | R404A (non-CFC, ozone-friendly) |
| Reservoir Volume (L) | 40 |
| Pump Flow Rate (L/min) | 30 |
| Max. System Pressure (bar) | 1 |
| External Port Size | 3/4" BSP/Female NPT |
| Reservoir Material | SUS304 stainless steel |
| Dimensions (W×D×H, mm) | 650 × 1055 × 1070 |
| Net Weight (kg) | 195 |
| Compressor | Tecumseh (original imported hermetic piston type) |
| Condenser | Air-cooled finned-tube with oxygen-free copper spiral tubing |
| Evaporator | Fully brazed plate heat exchanger (AISI 316 stainless steel plates, design temp. −160 to +200°C) |
| Dryer-Filter | Danfoss DML series with 3A molecular sieve core |
| Expansion Valve | Danfoss serviceable thermostatic expansion valve (adjustable superheat) |
| Circulation Pump | High-performance stainless steel centrifugal pump (leak-proof at low temperatures) |
| Control System | Microprocessor-based digital controller with Chinese-language UI (fully programmable setpoints, real-time monitoring) |
| Safety Protections | Phase sequence detection, delayed start, overcurrent, overtemperature, ground fault, and high-pressure cut-off |
| Enclosure IP Rating | IP44 |
| System Type | Hermetically sealed closed-loop circulation |
| Integrated Features | Liquid level indicator, system pressure gauge, particulate filter, refrigerant charge monitoring |
| Brand | Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | DL30-300 |
| Pricing | Upon Request |
| Brand | Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | DL30-700 |
| 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 Supply | 220–240 V, 50 Hz |
| Refrigerant | R410A (CFC-free) |
| Reservoir Volume (L) | 17 |
| Pump Flow Rate (L/min) | 20 |
| Max. System Pressure (bar) | 0.4 |
| Reservoir Material | SUS304 Stainless Steel |
| External Port Size | 1/2" NPT |
| Dimensions (W×D×H, mm) | 465 × 690 × 820 |
| Net Weight (kg) | 80 |
| Safety Protections | Delayed Start, Leakage Detection, Overcurrent, Overtemperature |
| Display | Digital Microcontroller with Chinese UI |
| Liquid Level Indicator | Integrated Visual Gauge |
| System Pressure Gauge | Installed |
| Filtration | In-line Particulate Filter |
| Dryer Filter | Danfoss DML Series with 3A Molecular Sieve |
| Compressor | Panasonic Wakō Scroll-Type Rotary Compressor |
| Condenser | Air-Cooled Finned-Tube with Oxygen-Free Copper Spiral Tube |
| Evaporator | Immersed Coil-Type in Reservoir |
| Circulation System | Hermetically Sealed, Leak-Proof Stainless Steel Loop |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Equipment Type | Integrated Circulating Chiller |
| Cooling Method | Water-Cooled |
| Temperature Range | -30°C to +5°C |
| Refrigeration Capacity | 700 W |
| Circulation Pump Pressure | 0.4 bar |
| Circulation Flow Rate | 20 L/min |
| Construction | Stainless Steel (SUS Standard) & Chemical-Resistant Polymer Components |
| Refrigerant | CFC-Free, Environmentally Compliant (R-404A or equivalent) |
| Safety Features | Low-Level Protection, Freeze Prevention, Clog Resistance, Pressure Monitoring, Overload-Protected Compressor |
| Compliance | Designed for GLP-compliant lab environments |
| 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 |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Product Type | Integrated Circulating Chiller |
| Cooling Method | Air-Cooled |
| Temperature Range | –20 to 25 °C |
| Temperature Stability | ±2 °C |
| Refrigeration Capacity | 360–680 W (varies with setpoint) |
| Pump Max Flow Rate | 22 L/min |
| Pump Max Pressure | 1.1 bar |
| Reservoir Volume | 5 L |
| Display Resolution | 0.1 °C |
| Communication Interface | RS485 with Modbus RTU protocol |
| Refrigerant | R404A |
| Power Supply | 220 V~, 50 Hz |
| IP Rating | IP20 |
| Ambient Operating Conditions | 5–35 °C, ≤70% RH |
| Reservoir Material | 304 Stainless Steel |
| Dimensions (W×D×H) | 335 × 473 × 684 mm |
| Net Weight | 40 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 | Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | DLSB-5/20D |
| Instrument Type | Vertical |
| Temperature Stability | ±2 °C |
| Temperature Setting Accuracy | ±2 °C |
| Bath Volume | 5 L |
| Heating Power | 635 W |
| Overall Weight | 41 kg |
| Dimensions (W×D×H) | 335 mm × 473 mm × 684 mm |
| Circulating Medium | Ethanol |
| Refrigerant | R404A (CFC-free) |
| Compressor | Hermetic Piston Compressor (Embraco) |
| Condenser | Air-Cooled Finned-Tube with Oxygen-Free Copper Coils |
| Evaporator | 304 Stainless Steel Coil-in-Bath Type |
| Pump | 304 Stainless Steel Shielded Low-Temperature Circulation Pump |
| Max. Flow Rate | 22 L/min |
| Max. Pressure | 1.1 bar |
| Protection Features | Delay Start, Overcurrent, Overheat, High-Pressure, Ground Fault |
| IP Rating | IP20 |
| Ambient Operating Range | 5–35 °C, ≤70% RH |
| Power Supply | 220 V~, 50 Hz |
| Communication Interface | RS485, MODBUS RTU Protocol |
| Controller | LCD Display with 0.1 °C Resolution, CE Certified |
| Brand | Great Wall |
|---|---|
| Model | DLSB-ZC |
| Origin | Henan, China |
| Power Supply | 220–240 V~, 50 Hz |
| Operating Temperature Range | −10 to 25 °C |
| Ambient Temperature Range | 5 to 25 °C |
| Temperature Stability | ±2 °C |
| Reservoir Capacity | 20 L |
| Refrigeration Capacity | 600–2550 W |
| Circulation Pump Power | 280 W |
| Rated Flow Rate | 30 L/min |
| Maximum Vacuum | 0.098 MPa (2 kPa) |
| Number of Vacuum Ports | 3 |
| Single-Port Pumping Speed | 10 L/min |
| Pressure Rating | 1.0 bar |
| Overall Dimensions (W×D×H) | 595 × 475 × 925 mm |
| Total Power Consumption | 1650 W |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | DLSB-ZC |
| Operating Temperature Range | −10 °C to 25 °C |
| Ambient Temperature Range | 5 °C to 25 °C |
| Temperature Stability | ±2 °C |
| Total Power Consumption | 1650 W |
| Electrical Supply | 220–240 V~, 50 Hz |
| Reservoir Volume | 20 L |
| Refrigeration Capacity | 600–2550 W |
| Circulating Pump Power | 280 W |
| Rated Flow Rate | 30 L/min |
| Maximum Pressure Output | 1.0 bar |
| Ultimate Vacuum Level | 0.098 MPa (2 kPa) |
| Number of Vacuum Ports | 3 |
| Single-Port Pumping Speed | 10 L/min |
| Dimensions (W×D×H) | 595 × 475 × 925 mm |
| Brand | Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | DRT-SX 3000 mL |
| Price | Upon Request |
| Power Supply | 220 V / 50 Hz |
| Rated Power | 650 W (typical for 3000 mL capacity) |
| Temperature Stability | ±1 °C |
| Operating Temperature Range | Ambient to 300 °C |
| Insulation Resistance | >500 MΩ·cm |
| Control System | Microcontroller-based PID with dual thermocouple feedback (internal & external) |
| Safety Features | Overcurrent protection, thermal cut-off |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | GFY-10L |
| Price Range | USD 2,800–7,000 |
| Usable Volume | Small-Scale |
| Construction Material | Borosilicate Glass 3.3 (DIN ISO 3585) |
| Operating Pressure Range | -0.1 MPa to 0.0 MPa (Vacuum to Ambient) |
| Maximum Working Temperature | -80 °C to +200 °C |
| Stirring Motor Power | 90 W |
| Speed Control | Frequency Inverter |
| Rotational Speed Range | 50–500 rpm |
| Main Lid Ports | One 50# DIN standard flange (stirrer shaft), Two 34/35 standard taper ground joints (liquid feed & vent), Stainless Steel 304 Frame |
| Electrical Supply | 220–240 V~, 50 Hz |
| Brand | Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Origin Category | Domestic (China) |
| Model | GR-1 |
| Instrument Classification | Jacketed Glass Reactor |
| Usable Volume | Small-Scale |
| Vessel Material | Borosilicate Glass 3.3 |
| Capacity | 1–5 L |
| Operating Temperature Range | −80 °C to +200 °C |
| Pressure Rating | −0.1 MPa to 0 MPa (Vacuum Only) |
| Jacket Inlet/Outlet | Stainless Steel Insulated Flexible Hoses |
| Drain Valve | Zero-Dead-Volume PTFE-Lined Valve |
| Frame Construction | Hybrid Structure — 06Cr19Ni10 (AISI 304) + Carbon Steel with Epoxy Powder Coating + Anodized Aluminum |
| Drip Tray Material | 06Cr19Ni10 Stainless Steel |
| Stirring Shaft | AISI 304 Core with Full PTFE Cladding |
| Impeller Material | Solid PTFE |
| Sealing Bearings | Imported High-Precision Radial Ball Bearings |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Producer |
| Model | GR-100 |
| Capacity | 100 L (Working Volume) |
| Jacket Volume | 30 L |
| Jacket Heat Transfer Area | 1.09 m² |
| Condenser Heat Transfer Area | 0.5 m² |
| Material | ASTM E438 Type I, Class A Borosilicate 3.3 Glass |
| Support Frame & Fittings | AISI 304 Stainless Steel |
| Operating Temperature Range | −80 °C to +200 °C |
| Pressure Rating | Ambient or Vacuum (Max. Vacuum: −0.098 MPa gauge / ≤ 2 kPa abs) |
| Agitator Motor | 370 W, Variable-Frequency Drive (VFD) |
| Stirring Speed | 50–500 rpm |
| Sealing System | PTFE-lined magnetic coupling with corrosion-resistant ceramic bearing |
| Discharge Valve | Side-mounted, zero-dead-volume PTFE-sealed valve |
| Power Supply | 220 V AC, 50/60 Hz |
| Overall Dimensions (L×W×H) | 1200 × 790 × 2480 mm |
| Temperature Sensor | Fluoropolymer-coated 304 SS probe |
| Stirrer Type | Propeller-type, shaft and blade fully clad in PTFE |
| Port Configuration | 7 standardized openings (including 60 mm agitator flange, dual 34# standard taper joints, 40# constant-pressure funnel port, 50# spherical joint for condenser, 95# solid-feed flange, DN15 circulation ports) |
| Brand | Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | GR-100 |
| Instrument Category | Glass Reactor / Solvent Recovery Unit |
| Working Volume | 100 L |
| Construction Material | Borosilicate Glass (3.3) + Stainless Steel Frame (304/316) |
| Operating Pressure | Low-pressure, Vacuum-Driven |
| Maximum Vacuum Level | 0.098 MPa (≈ 735 mmHg) |
| Explosion Protection Rating | Ex dⅡBT4 |
| Condenser Type | Horizontal Shell-and-Tube Glass Condenser |
| Secondary Condenser | Integrated |
| Collection Configuration | Dual Collection Vessels with Independent Valve Control |
| Connection Method | Flanged Glass Joints (ISO-KF or DIN 28, depending on configuration) |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Equipment Category | Domestic |
| Model | GR-2 |
| Reactor Type | Benchtop Glass Reactor |
| Vessel Capacity | 2 L |
| Vessel Material | Borosilicate Glass 3.3 |
| Operating Pressure Range | –0.1 MPa to 0 MPa (vacuum to ambient) |
| Temperature Range | –80 °C to +200 °C |
| Jacket Volume | 1.7 L |
| Jacket Pressure Rating | ≤ 0.03 MPa |
| Stirring Speed Range | 40–500 rpm |
| Speed Accuracy | ±1 rpm |
| Motor Type | Brushless DC |
| Motor Power | 50 W |
| Stirrer Shaft Material | 06Cr19Ni10 (AISI 304) with PTFE cladding |
| Impeller Material | PTFE-coated 06Cr19Ni10 |
| Sealing | Vacuum-rated mechanical seal |
| Stirrer Configuration | Single-layer four-blade inclined turbine |
| Temperature Sensor | PT100, ±0.1 °C accuracy |
| Display | Digital LED for speed and temperature |
| Power Supply | Stirrer: 100–240 V AC, 50/60 Hz |
| Control Box | 220–240 V AC, 50/60 Hz |
| Dimensions (W×D×H) | ~480 × 420 × 1100 mm |
| Weight | ~20 kg |
| Compliance | Designed for GLP-compliant laboratory environments |
| Accessories | Standard condenser (326 mm length, 0.025 m² cooling area), 200 mL constant-pressure dropping funnel (24/29 joint), 24/40 and 19/26 standard taper ports, φ20 discharge valve, Rc 3/4 & Rc 1/2 jacket inlet/outlet threads |
| Brand | Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | GR-2 |
| Price Range | USD 2,800–7,000 (FOB) |
| Usable Volume | 2 L |
| Construction Material | Borosilicate Glass 3.3 (DIN ISO 3585) |
| Operating Pressure Range | −0.1 MPa to 0 MPa (gauge) |
| Maximum Vacuum Level | 0.098 MPa (absolute) |
| Temperature Range | −80 °C to +200 °C |
| Sealing Components | PTFE/FKM stopcocks and discharge valves |
| O-rings | FEP-coated FKM elastomers |
| Integrated Gauges | Analog vacuum gauge + digital temperature display |
| Available Volumes | 1 L, 2 L, 3 L, 5 L |
| Brand | Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | GR-20 |
| Capacity | 20 L |
| Vessel Material | 3.3 borosilicate glass |
| Operating Pressure Range | –0.1 MPa to atmospheric pressure |
| Temperature Range | –80 °C to +200 °C |
| Vacuum Performance | ≤ –0.095 MPa (absolute) |
| Sealing Components | PTFE stopcocks and discharge valve |
| Jacket Configuration | Dual-layer (inner heating/cooling jacket + outer vacuum-insulated jacket optional) |
| Application Class | Synthesis, distillation, concentration, reflux |