The Great Wall
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| 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 | Shanghai, China |
| Model | DLSB-5/20 |
| Temperature Range | −20 °C |
| Reservoir Capacity | 5 L |
| Pump Flow Rate | Adjustable, up to 20 L/min |
| Refrigeration Type | Mechanical compression (hermetically sealed compressor) |
| Construction | Corrosion-resistant fluid path |
| Control | Microprocessor-based digital temperature controller with LED display |
| Compliance | Designed for GLP-compliant lab environments |
| 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 | 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 | 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 | 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 | 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 | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | GR-20 |
| Capacity | 20 L |
| Vessel Material | GG17 Borosilicate Glass (3.3) |
| Operating Pressure | Low-pressure (up to 0.1 MPa gauge) |
| Vacuum Level | –0.098 MPa (absolute) |
| Jacket Configuration | Triple-layer (inner reaction vessel + dual insulating/temperature-control jackets) |
| Stirring Motor | AC Gearmotor with Frequency Control |
| Sealing System | PTFE-faced mechanical seal + ground-glass joints |
| Temperature Sensor | Pt100 RTD probe |
| Discharge Valve | PTFE-lined adjustable bottom valve |
| Frame | Stainless steel mobile column-type support structure |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | GR-20L (Adjustable Height & Rotatable) |
| Price Range | USD 2,800 – 7,000 |
| Usable Volume | 20 L |
| Vessel Material | Borosilicate Glass 3.3 |
| Operating Pressure | Atmospheric or Vacuum (Max. Vacuum: 0.098 MPa) |
| Jacket Volume | 6 L |
| Jacket Heat Transfer Area | 0.32 m² |
| Condenser Heat Transfer Area | 0.3 m² |
| Temperature Range | −80 °C to +200 °C |
| Thermal Shock Resistance | ΔT ≤ 90 °C |
| Motor Power | 90 W |
| Speed Range | 50–500 rpm |
| Speed Control | Frequency Inverter |
| Stirring Seal | Dual Mechanical Seal (PTFE-coated Stainless Steel Shaft & Bearings) |
| Bottom Discharge Valve | PTFE-lined, Zero-Dead-Volume Design |
| Base Construction | Parallel Steel Frame with Locking Casters |
| Overall Dimensions (L×W×H) | 660 × 535 × 1950 mm |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | GR-2L |
| Capacity | 2 L |
| Material | Borosilicate Glass 3.3 |
| Operating Pressure Range | −0.1 to 0 MPa |
| Vacuum Level | ≤ −0.098 MPa (≤ 2 kPa absolute) |
| Temperature Range | −80 °C to +200 °C |
| Stirring Speed | 50–500 rpm |
| Stirring Power | 70 W |
| Torque | 70 N·cm |
| Temperature Sensor | Pt100 (±0.1 °C accuracy) |
| Condenser Area | ~0.025 m² |
| Constant-Pressure Funnel Volume | 200 mL |
| Jacket Volume | ~0.6 L |
| Sealing Material | PTFE + FKM O-rings with PTFE coating |
| Electrical Supply | 220–240 V~, 50/60 Hz or 110 V~, 60 Hz |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | GR-30TEx |
| Usable Volume | 30 L |
| Vessel Material | Borosilicate Glass 3.3 (DIN ISO 3585) |
| Working Pressure Range | −0.1 to 0.0 MPa (vacuum only) |
| Maximum Vacuum | 0.098 MPa |
| Jacket Volume | ~10 L |
| Condenser Heat Transfer Area | 0.341 m² |
| Temperature Range | −80 °C to +200 °C |
| Stirring Speed Range | 50–500 rpm |
| Motor Power | 180 W |
| Explosion Protection | Exd II BT4 (certified components) |
| Temperature Sensor | Pt100 (±0.1 °C accuracy) |
| Frame Material | SUS304 Stainless Steel |
| Dimensions (W×D×H) | 1200 × 750 × 2750 mm |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Origin Category | Domestic |
| Model | GR-5~100 |
| Capacity | 5–100 L |
| Vessel Material | Borosilicate Glass 3.3 |
| Working Pressure Range | −0.1 MPa to 0 MPa (gauge) |
| Vacuum Level | 0.095 MPa (absolute) |
| Temperature Range | −80 °C to +200 °C |
| Jacket Configuration | Double-jacketed (vacuum-insulated outer jacket option available) |
| Drive Motor Options | Three-phase induction motor or brushless DC motor |
| Explosion Protection Rating | Ex db IIB T4 Gb |
| Stirring Shaft Material | 06Cr19Ni10 stainless steel with PTFE cladding |
| Impeller Material | PTFE |
| Sealing System | Proprietary mechanical seal assembly |
| Frame Material | 06Cr19Ni10 stainless steel + aluminum alloy with epoxy powder coating |
| Mobility | Casters with locking brakes |
| Drain Valve | Zero-holdup PTFE-lined discharge valve |
| Jacket Fluid Inlet/Outlet | Stainless steel insulated flexible hoses |
| [Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Vertical |
| Temperature Range | −5 to 99 °C |
| Temperature Stability | ±0.05 °C (display resolution) |
| Display Resolution | 0.01 °C |
| Bath Volume | 5 L |
| Bath Opening | 141 W × 120 D mm |
| Bath Depth | 145 mm |
| External Dimensions | 270 W × 490 D × 650 H mm |
| Net Weight | 32 kg |
| Circulation Pump Flow Rate | up to 10 L/min |
| Max Pump Pressure | 0.2 bar |
| Heating Power | 1.1 kW |
| Total Power Consumption | 1.5 kW |
| Refrigerant | R134a |
| Communication Interface | RS-485 (Modbus RTU protocol) |
| Bath Material | 06Cr19Ni10 (AISI 304 stainless steel) |
| Enclosure Material | Powder-coated cold-rolled steel |
| IP Rating | IP20 |
| Pollution Degree | 2 |
| Operating Ambient | 5–35 °C, ≤70% RH |
| Power Supply | 220–240 V~, 50 Hz] |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | LT-100-80 |
| Instrument Type | Constant-Temperature Bath Chiller |
| Circulation Mode | Internal & External Loop |
| Temperature Control | Heating-Only Mode |
| Bath Volume | 10 L |
| Temperature Range | −80 °C to +40 °C |
| Temperature Stability | ±2 °C |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Model | LT-50-80 |
| Temperature Range | –80 °C to –40 °C |
| Temperature Stability | ±2 °C |
| Ambient Operating Conditions | 5–35 °C, ≤70% RH |
| Power Supply | 3-phase, 380 V, 50 Hz |
| Total Power Consumption | 9.8 kW |
| Refrigerants | R404A / R23 |
| Cooling Capacity | 5000 W at –40 °C, 3000 W at –60 °C, 1000 W at –80 °C |
| Bath Volume | 10 L |
| Circulation Pump | 280 W, 30 L/min, max. pressure 1.0 bar |
| External Port | 1/2″ threaded |
| Fill Port Diameter | Φ60 mm |
| Bath & Piping Material | SUS304 stainless steel |
| Heat Exchanger Core Material | SUS316 stainless steel plates |
| Dimensions (W×D×H) | 710 × 1230 × 1380 mm |
| Net Weight | 350 kg |
| Protection Class | IP44 |
| Safety Features | Delayed start, overcurrent, overtemperature, high-pressure cutoff |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | MP-201Z |
| Instrument Type | Diaphragm Vacuum Pump |
| Product Category | Oil-Free Vacuum Pump |
| Ultimate Vacuum | 8 mbar (0.0992 MPa) |
| Pumping Speed | 25 L/min |
| Motor Power | 180 W |
| Power Supply | 220–240 V~, 50 Hz |
| Motor Speed | 1300 rpm |
| Inlet Port Diameter | Ø6 mm |
| Dimensions (W×D×H) | 300 × 230 × 170 mm |
| Weight | 10 kg |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer | The Great Wall Scientific Industrial & Trade Co., Ltd. |
| Model | R-1001VN |
| Capacity | 1 L |
| Rotation Speed | 20–180 rpm |
| Temperature Control Range | Ambient +5 °C to 95 °C |
| Condenser Cooling Area | 0.126 m² |
| Sealing | PTFE-modified + Fluoroelastomer Dual-Seal |
| Motor Power | 25 W |
| Condenser Type | Vertical High-Efficiency Dual-Return |
| Evaporation Rate (Water) | ~15 mL/min |
| Protection | Overcurrent & Short-Circuit Protection |
| Power Supply | 220–240 V~, 50/60 Hz |
| Dimensions (W×D×H) | 640 × 400 × 670 mm (extended height: 920 mm) |
| Weight | 9.5 kg |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Model | R-1001VN |
| Capacity | 2 L |
| Ultimate Vacuum | < 399.9 Pa (≤ 3 mmHg) |
| Rotation Speed | 10–180 rpm |
| Bath Temperature Range | Ambient to 180 °C |
| Temperature Control Accuracy | ±1 °C (PID-controlled) |
| Condenser Surface Area | 0.11 m² (1200 cm²) |
| Sealing System | Patented PTFE-modified + FKM dual O-ring |
| Evaporation Rate (Water) | ~15 mL/min |
| Power Supply | 220–240 V~, 50/60 Hz |
| Dimensions (W×D×H) | 640 × 400 × 670 mm (extended height: 920 mm) |
| Net Weight | 9.5 kg |
| Brand | The Great Wall |
|---|---|
| Model | R-1005 |
| Rotating Flask Capacity | 5 L |
| Rotation Speed Range | 20–140 rpm |
| Temperature Control Range | Ambient +5 °C to 95 °C |
| Temperature Control Accuracy | ±1.5 °C |
| Condenser Cooling Area | 0.278 m² |
| Heating Power | 2000 W |
| Rotational Motor Power | 250 W |
| Total Rated Power | 2300 W |
| Electric Lift Stroke | 0–150 mm |
| Lift Speed | 10 mm/s |
| Cold Trap Type | Dual-reflux condenser |
| Collection Flask Capacity | 3 L |
| Bath Material | 06Cr19Ni10 (AISI 304 stainless steel) |
| Sealing System | Modified PTFE + FKM dual-seal |
| Feed/Drain Valve | PTFE-plunger valve |
| Evaporation Rate (Water) | 2.0 L/h |
| Safety Protections | Leakage current protection, overcurrent cutoff, overtemperature cutoff, low-bath-level detection |
| Power Supply | 110 V~, 60 Hz or 220–240 V~, 50/60 Hz |
| Dimensions (W×D×H) | 840 × 520 × 1140 mm |
| Net Weight | 35 kg |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Origin Category | Domestic (China) |
| Model | R-1020 |
| Capacity | 20 L |
| Rotational Speed Range | 20–130 rpm |
| Temperature Control Range | Ambient +5°C to 95°C |
| Temperature Control Accuracy | ±1.5°C |
| Condensing Area | Main Condenser: 0.948 m² |
| Auxiliary Condenser | 0.358 m² |
| Heating Power | 6000 W |
| Rotating Motor Power | 250 W |
| Total Rated Power | 6300 W |
| Display | LCD Digital Display |
| Lift Mechanism | Electric Vertical Lift (0–190 mm行程) |
| Condenser Type | High-Efficiency Triple-Return Dual-Stage Condenser (Main + Auxiliary) |
| Rotary Flask Volume | 20.0 L (DN100 Flange) |
| Collection Flask Volume | 10.0 L |
| Bath Material | 06Cr19Ni10 Stainless Steel (Φ450 × 260 mm) |
| Vacuum Seal | Modified PTFE + Fluoroelastomer Dual-Seal System |
| Discharge Valve | PTFE-Core Valve |
| Evaporation Rate (Water) | 5.0 L/h |
| Safety Protections | Leakage Current Protection, Overcurrent Protection, Overtemperature Protection, Liquid-Level Monitoring |
| Operating Ambient | 5–40°C, ≤70% RH |
| Power Supply | 3-phase, 380 V, 50 Hz |
| Dimensions (W×D×H) | 1120 × 680 × 1900 mm |
| Net Weight | 90 kg |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer | Original Equipment Manufacturer (OEM) |
| Type | Domestic Industrial-Grade Rotary Evaporator |
| Model | R-1020EX |
| Capacity | 20 L |
| Ultimate Vacuum | ≤100 Pa (with compatible vacuum pump) |
| Rotational Speed Range | 20–130 rpm |
| Temperature Control Range | Ambient +5°C to 95°C |
| Temperature Accuracy | ±1.5°C |
| Heating Power | 6000 W |
| Total Rated Power | 6300 W |
| Condenser Surface Area | Primary: 0.948 m², Secondary: 0.458 m² |
| Bath Material | SUS304 Stainless Steel (Φ450 × 260 mm) |
| Rotation Motor Power | 180 W |
| Drive Type | Frequency-Controlled Variable-Speed Motor |
| Condenser Design | Vertical Dual-Stage (Primary + Secondary), Triple-Reflex Tubular |
| Flask Neck Diameter | Φ125 mm (ISO-KF 125 flange) |
| Collection Flask Volume | 10 L |
| Lift Mechanism | Manual, 0–190 mm Stroke |
| Sealing Technology | Dual-Seal System (PTFE + FKM-PTFE Composite Gasket) |
| Discharge Valve Core | PTFE |
| Evaporation Rate (Typical) | Water: 5 L/h |
| Ethanol | 14.3 L/h |
| Safety Protections | Overcurrent, Ground Fault, Overtemperature |
| Ambient Operating Conditions | 5–35°C, RH ≤65% |
| Power Supply | 3-phase, 380 V, 50 Hz |
| Dimensions (mm) | Main Unit: 1195 W × 740 D × 2040 H |
| Explosion-Proof Control Cabinet | 500 W × 455 D × 985 H |
| Weight | Main Unit: 115 kg |
| Control Cabinet | 58 kg |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Model | R-1020EX |
| Capacity | 20 L |
| Ultimate Vacuum | 0.098 MPa (98 kPa) |
| Rotational Speed Range | 20–130 rpm |
| Temperature Control Range | Ambient +5°C to 95°C |
| Temperature Control Accuracy | ±1.5°C |
| Condenser Surface Area | Main Condenser 0.948 m² |
| Heating Power | 6000 W |
| Total Rated Power | 6300 W |
| Vacuum System Pressure Rise Rate | ≤2 kPa/h |
| Rotation Motor Power | 180 W |
| Condenser Type | Vertical Dual-Stage (Main + Auxiliary), Triple-Reflex Design |
| Rotary Flask | 20.0 L, Flange Diameter Φ125 mm |
| Collection Flask | 10 L |
| Bath Material | SUS304 Stainless Steel (Φ450 mm × 260 mm) |
| Lift Mechanism | Manual, Stroke 0–190 mm |
| Sealing Technology | PTFE + Fluorinated Rubber Dual-Seal |
| Discharge Valve Core | PTFE |
| Evaporation Rate | Water 5 L/h |
| Safety Protections | Overcurrent, Ground Fault, Overtemperature |
| Operating Ambient | 5–35°C, RH ≤65% |
| Mobility | Lockable Casters |
| Power Supply | 3-phase, 380 V, 50 Hz |
| Dimensions (mm) | Main Unit 1195 W × 740 D × 2040 H |
| Weight | Main Unit 115 kg |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Model | R-1020EX |
| Capacity | 20 L |
| Ultimate Vacuum | 0.098 MPa (98 kPa) |
| Rotational Speed Range | 20–130 rpm |
| Temperature Control Range | Ambient +5°C to 95°C |
| Temperature Accuracy | ±1.5°C |
| Condensing Area | Main Condenser 0.948 m² |
| Heating Power | 6000 W |
| Total Rated Power | 6300 W |
| Vacuum System Pressure Rise Rate | ≤2 kPa/h |
| Rotation Motor Power | 180 W |
| Condenser Type | Vertical dual-stage (main + auxiliary), triple-reflux design |
| Flask Diameter (Flange) | Φ125 mm |
| Collection Flask Volume | 10 L |
| Bath Material | SUS304 stainless steel (Φ450 × 260 mm) |
| Manual Lift Stroke | 0–190 mm |
| Sealing Technology | PTFE + FKM double-seal |
| Discharge Valve Core | PTFE |
| Evaporation Rate | 5 L/h (water), 14.3 L/h (ethanol) |
| Safety Protections | Overcurrent, Ground Fault, Overtemperature |
| Operating Ambient | 5–35°C, ≤65% RH |
| Power Supply | 3-phase, 380 V, 50 Hz |
| Dimensions (mm) | Main Unit 1195W × 740D × 2040H |
| Weight | Main Unit 115 kg |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer | The Great Wall Scientific Industrial & Trading Co., Ltd. |
| Model | R-1050 |
| Capacity | 50 L |
| Rotation Speed | 20–110 rpm |
| Bath Temperature Range | +5 °C to 95 °C (ambient referenced) |
| Temperature Control Accuracy | ±1.5 °C |
| Condensing Area | Main Condenser 1.15 m² |
| Power Supply | 3-phase, 380 V, 50 Hz |
| Total Power Consumption | 6300 W |
| Rotating Motor Power | 250 W |
| Heating Power | 6000 W |
| Max. Water Evaporation Rate | 9 L/h |
| Sealing Leakage Rate | ≤0.03 kPa/min |
| Bath Material | 06Cr19Ni10 Stainless Steel (Φ550 × 320 mm) |
| Glassware | DIN/ISO-compliant borosilicate 3.3 glass |
| PTFE Valve | Yes |
| Quick-Release Flange Connection | Yes |
| IP Rating | IP20 |
| Pollution Degree | 2 |
| Dimensions (with glassware) | 1345 W × 770 D × 2230 H mm |
| Installed Footprint (min.) | 1445 W × 870 D × 2280 H mm |
| Weight (with glass) | 140 kg |
| Ambient Operating Conditions | 5–35 °C, ≤70% RH, ≤2000 m altitude |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | R-2020EX |
| Capacity | 20 L |
| Ultimate Vacuum | ≤2 kPa/h |
| Rotational Speed Range | 20–130 rpm |
| Temperature Control Range | Ambient +5°C to 95°C |
| Temperature Control Accuracy | ±1.5°C |
| Condensing Area | Main Condenser 0.948 m² |
| Heating Power | 4000 W |
| Total Rated Power | 4500 W |
| Rotation Motor Power | 370 W |
| Bath Material | SUS304 Stainless Steel (Φ450 × 260 mm) |
| Bath Lift | Electric, 0–160 mm Stroke |
| Sealing Technology | Dual-Seal System (PTFE + Fluorinated Rubber) |
| Explosion Protection Rating | Exd II BT4 |
| Enclosure IP Rating | IP65 |
| Safety Features | Overcurrent, Ground Fault, Overtemperature, and Liquid-Level Protection |
| Communication Interface | RS458 with MODBUS RTU Protocol |
| Dimensions (W×D×H) | 1210 × 740 × 2080 mm |
| Mobility | Lockable Casters |
| Display | LCD Control Panel |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Origin Category | Domestic |
| Model | R-2050EX |
| Capacity | 50 L |
| Ultimate Vacuum | ≤2 kPa/h |
| Rotation Speed | 20–110 rpm |
| Temperature Control Range | Ambient +5°C to 95°C |
| Temperature Control Accuracy | ±1.5°C |
| Condensing Area | Main Condenser 1.15 m² |
| Heating Power | 6000 W |
| Total Rated Power | 6500 W |
| Motor Power | 370 W |
| Lift Stroke | 0–170 mm |
| Bath Material | SUS304 Stainless Steel (Φ560 × 340 mm) |
| Explosion Protection Mark | Ex d II BT4 |
| Enclosure Rating | IP65 |
| Communication Protocol | RS485 / MODBUS RTU |
| Safety Features | Overcurrent, Ground Fault, Overtemperature, Liquid-Level Protection |
| Mobility | Lockable Casters |
| Display | LCD Control Panel |
| Sealing Technology | Dual-Seal System (PTFE + Fluoroelastomer) |
| Feed Valve Material | PTFE |
| Evaporation Rate (Water) | ~9.0 L/h |
| Evaporation Rate (Ethanol) | ~24.5 L/h |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Model | R-2050Ex |
| Rotating Flask Capacity | 50 L |
| Ultimate Vacuum | 2 kPa/h |
| Rotation Speed Range | 20–110 rpm |
| Bath Temperature Range | +5 to 95 °C |
| Temperature Control Accuracy | ±1.5 °C |
| Total Condensing Area | 1.15 m² (Main Condenser) + 0.4 m² (Auxiliary Condenser) |
| Power Supply | 3-phase, 380 V, 50 Hz |
| Overall Dimensions (with glassware) | 1360 W × 770 D × 2250 H mm |
| Net Weight (with glass) | 270 kg |
| IP Rating | IP20 |
| Pollution Degree | 2 |
| Max. Evaporation Rate (Water) | 9 L/h |
| Sealing Leakage Rate | ≤0.03 kPa/min |
| Motor Power | 370 W |
| Total Power Consumption | 6500 W |
| Bath Material | 06Cr19Ni10 Stainless Steel (AISI 304 Equivalent) |
| Glass Material | DIN 3.3 Borosilicate Glass (e.g., Pyrex®-equivalent) |
| Sealing System | Dual PTFE + Fluoroelastomer Gaskets |
| Rotation Drive | DC Stepless Speed Control |
| Display | LCD for Real-Time Temperature & RPM Monitoring |
| Safety Features | Liquid-Level Protection, Dry-Burn Prevention, Electrically Actuated Bath Lift, Brake-Fitted Casters, Ex d b IIB T4 Gb Certified Explosion Protection |
| [Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer | The Great Wall Scientific Industrial & Trading Co., Ltd. |
| Model | R-2050EX |
| Capacity | 50 L |
| Ultimate Vacuum | ≤2 kPa/h |
| Rotation Speed | 20–110 rpm |
| Temperature Range | Ambient +5°C to 95°C |
| Temperature Control Accuracy | ±1.5°C |
| Condensing Area | Main Condenser 1.15 m², Auxiliary Condenser 0.4 m² |
| Heating Power | 6000 W |
| Total Rated Power | 6500 W |
| Motor Power | 370 W |
| Lift Stroke | 0–170 mm |
| Explosion Protection Mark | Ex d II BT4 |
| Enclosure Rating | IP65 |
| Communication Protocol | RS485 / MODBUS RTU] |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer | The Great Wall Scientific Industrial & Trading Co., Ltd. |
| Model | R-3001 |
| Collection Flask Capacity | 1000 mL |
| Rotation Speed Range | 10–280 rpm |
| Temperature Control Range | Ambient +5°C to 95°C |
| Condenser Cooling Area | 0.126 m² |
| Lift Stroke | 150 mm |
| Sealing Leakage Rate | ≤ 0.33 kPa/min |
| Motor Power | 40 W |
| Evaporation Rate (Water) | 23 mL/min |
| Dual Seal | PTFE-modified + Fluoroelastomer |
| Certified | CE (TUV) |