The Great Wall
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| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | SY-200-200 |
| Circulation Mode | Internal & External Loop |
| Temperature Control | Heating-Only |
| Bath Volume | 22 L |
| Temperature Range | 5–200 °C |
| Temperature Stability | ±0.5 °C |
| Power Supply | 3-phase, 380 V, 50 Hz |
| Cooling Interface | Dedicated Inlet/Outlet for External Cooling Water |
| Safety Features | Overtemperature Alarm, Overcurrent Protection, Overload Protection |
| Control Method | PID Digital Temperature Control |
| Display | LCD Panel with Real-Time Temperature Readout |
| System Design | Fully Sealed Closed-Loop Circulation |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | BHK-C30 |
| Power | 800 W |
| Voltage/Frequency | 220 V / 50 Hz |
| Drying Tube Length | 170 mm (standard), customizable |
| Number of Drying Ports | 30 |
| Operating Temperature Range | 40–120 °C |
| Temperature Stability | ±2 °C |
| Outer Dimensions | Ø400 × 620 mm |
| Net Weight | 30 kg |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | CLZZ-50 |
| Vacuum Level | −0.098 MPa (98 kPa) |
| Operating Pressure Range | −0.1 MPa to 0.0 MPa |
| Temperature Range | −80 °C to +200 °C |
| Construction Material | Borosilicate Glass 3.3 (DIN ISO 3585) |
| Frame Material | Powder-Coated Q235 Steel + Anodized 6061-F Aluminum |
| Mobility | Locking Casters with Brake |
| Capacity | 50 L |
| Compliance | Designed for GLP-compliant laboratory filtration workflows |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | CT-40-V4 |
| Price | Upon Request |
| Empty Load Temperature | −40 °C |
| Cooling Method | Indirect (Glass Flask Immersion) |
| Temperature Display | Digital, Pt100 Sensor |
| Temperature Setting Range | Adjustable Within Operating Range |
| Safety Protections | Delay Start, Overcurrent, Overheat, High-Pressure Cut-off |
| Refrigerant | R404A |
| Cooling Capacity | 300 W at −10 °C, 250 W at −20 °C, 150 W at −30 °C, 50 W at −35 °C |
| Cryobath Dimensions | Ø160 × 250 mm |
| Cold Trap Flask Dimensions | Ø50 × 300 mm (Qty: 3) |
| Flask Material | Borosilicate Glass 3.3 (DIN ISO 3585) |
| Cryobath Material | 06Cr19Ni10 (AISI 304 Stainless Steel) |
| Drain Valve | Integrated |
| Vacuum Port | Ø12 mm Soft Tubing Fitting |
| Ambient Operating Conditions | 5–35 °C, ≤70% RH |
| Power Supply | 220 V~, 60 Hz |
| Total Power Consumption | 730 W |
| Rated Current | 4.2 A |
| Overall Dimensions (W×D×H) | 350 × 470 × 811 mm |
| Net Weight | 45 kg |
| Additional Functions | Pre-freezing Bath, Low-Temperature Constant-Temperature Bath |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | CT-40x |
| Pricing | Upon Request |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | CT-5000L |
| Pricing | Upon Request |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | CZLL-20 |
| Pricing | Available Upon Request |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | DHJF-1210 |
| Pricing | Upon Request |
| Refrigeration Principle | Single-Stage Compressor with Cascade Subcooling |
| Temperature Range | −120 °C to −60 °C |
| Bath Volume | 10 L |
| Temperature Stability | ±2 °C |
| Refrigerant | Mixed Cryogenic Refrigerant |
| Cooling Capacity | 160 W at −60 °C, 70 W at −80 °C, 40 W at −100 °C, 20 W at −120 °C |
| Stirring Power | 50 W |
| Stirring Speed | 100–1000 rpm |
| Display Resolution | 0.1 °C |
| Power Supply | 3-phase, 380 V, 50 Hz |
| Protection | Delayed Start, Overcurrent, Overtemperature |
| Bath Material | 304 Stainless Steel |
| Dimensions (W×D×H) | 670 × 780 × 1085 mm |
| Net Weight | 154 kg |
| Drain Port | 1/2″ NPT |
| Flask Capacity Support | Up to 3000 mL |
| Ambient Operating Conditions | 5–35 °C, ≤70% RH |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | DHJF-1250 |
| Cooling Capacity | 700 W at −60 °C, 580 W at −80 °C, 420 W at −100 °C, 125 W at −120 °C |
| Temperature Range | −120 °C to −60 °C |
| Temperature Stability | ±2 °C |
| Bath Volume | 50 L |
| Circulation Flow Rate | 20 L/min |
| Max. Pressure | 0.4 bar |
| Pump Power | 100 W |
| Total Power | 4000 W |
| Display Resolution | 0.1 °C |
| Evaporator Type | Coil-in-tank (stainless steel immersion coil) |
| Compressor | Hermetic scroll compressor |
| Condenser | Air-cooled finned-tube with oxygen-free copper tubing |
| Refrigerant | Mixed cryogenic refrigerant blend |
| External Port | 1/2″ NPT |
| Bath Opening Diameter | 400 mm |
| Bath Dimensions (Ø × H) | 450 × 320 mm |
| Max. Flask Capacity | 20 L |
| Bath Material | 304 stainless steel |
| Unit Dimensions (W × D × H) | 1340 × 820 × 1310 mm |
| Net Weight | 265 kg |
| Ambient Operating Conditions | 5–35 °C, ≤70% RH |
| Power Supply | 3-phase, 380 V, 50 Hz |
| Safety Protections | Phase sequence, overcurrent, overtemperature, delayed startup, thermal overload |
| 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 | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | DLSB-10/20 |
| Pricing | Upon Request |
| Refrigerant | R410A (CFC-free, eco-friendly) |
| Compressor | Panasonic rotary compressor |
| Condenser | Air-cooled finned-tube with oxygen-free copper spiral tubing |
| Evaporator | 304 stainless steel coil-type, immersed in reservoir |
| Pump | Low-temperature stainless steel shielded pump (AUS304 piping) |
| Reservoir | Sealed tank with level gauge, filtration inlet, and pressure gauge at outlet |
| Controller | LCD-based digital controller, 0.1 °C temperature resolution, CE-compliant |
| Safety Protections | Delay start, overcurrent, overheat, ground fault, high-pressure cut-off |
| Communication | RS485 interface, Modbus RTU protocol for remote monitoring & control |
| Electrical Components | Schneider-certified |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | DLSB-5/20A |
| Price | Upon Request |
| Compressor | Embraco hermetic piston compressor |
| Condenser | Air-cooled finned-tube type with oxygen-free copper spiral tubing |
| Evaporator | 304 stainless steel coil-in-tank design |
| Reservoir Material | SUS304 stainless steel |
| Controller | LCD interface with Pt100 sensor, ±0.1 °C display resolution, CE certified |
| Communication | RS485 interface, MODBUS RTU protocol |
| Electrical Components | Schneider brand |
| Refrigerant | R404A (CFC-free, environmentally compliant) |
| Safety Protections | Delayed start, overcurrent, overheat, grounding, high-pressure protection |
| Ambient Operating Range | 5–35 °C, ≤70% RH |
| Power Supply | 220–240 V~, 50 Hz |
| Temperature Range | –20 °C to +25 °C (ambient-dependent upper limit) |
| Stability | ±2 °C |
| Rated Power | 715 W |
| Cooling Capacity | 680 W @ 10 °C, 600 W @ 0 °C, 520 W @ –10 °C, 360 W @ –20 °C |
| Reservoir Volume | 5 L |
| Pump Flow Rate | 20 L/min |
| Max. Discharge Pressure | 0.4 bar |
| Ingress Protection | IP20 |
| Pollution Degree | Class II |
| Fluid Connection | R1/2″ BSP male thread |
| Tubing | Silicone rubber hose (Φ13×Φ9 mm) |
| Dimensions (W×D×H) | 335×473×684 mm |
| Net Weight | 42 kg |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Model | DLSB-500/30 |
| Cooling Capacity | 500 W @ –30 °C |
| Temperature Range | –30 °C to +35 °C |
| Reservoir Volume | 50 L |
| Pump Flow Rate | Adjustable up to 25 L/min |
| Refrigerant | R404A |
| Construction | 304 Stainless Steel Circulation System |
| Safety Protections | High-Pressure Cut-off, Overheat Protection, Overcurrent Protection |
| Power Supply | 220 V / 50 Hz |
| Certifications | CE-marked (per EN 61000-6-3, EN 61000-6-2), ISO 9001 Quality Management Compliant |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic |
| Model | GR-20TEx |
| Instrument Classification | Reaction Vessel |
| Usable Volume | Small-Scale |
| Construction Material | Borosilicate Glass 3.3 |
| Operating Pressure | Low-Pressure |
| Capacity | 20 L |
| Vacuum Range | −0.1 MPa to 0.0 MPa |
| Jacket Volume | ~6.0 L |
| Condenser Heat Transfer Area | ~0.249 m² |
| Constant-Pressure Funnel Capacity | 2000 mL |
| Temperature Range | −80 °C to +200 °C |
| Max. ΔT (Jacket–Vessel) | ≤80 °C |
| Jacket Pressure Limit | ≤0.03 MPa |
| Number of Lid Ports | 6 |
| Temperature Sensor | Pt100 (±0.1 °C display accuracy) |
| Frame Material | SUS304 Stainless Steel |
| Mobility | Equipped with Locking Casters |
| Motor | 180 W Three-Phase Asynchronous Motor |
| Speed Control | Variable-Frequency Drive (50–500 rpm) |
| Stirrer Type | Paddle Agitator with PTFE Blades |
| Stirrer Shaft | SUS304 core with PTFE cladding |
| Sealing Bearings | Precision Ceramic-Enhanced |
| Explosion Protection | Exd II BT4 Certified (All explosion-proof components independently certified) |
| Feed/Discharge Valve | Corrosion-Resistant Side-Outlet Design with Zero Liquid Retention |
| Cooling/Heating Interface | Stainless Steel Flexible Insulated Hoses |
| Ambient Operating Conditions | 5–35 °C, ≤70% RH |
| Discharge Valve Height | ~320 mm above floor |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | GR-50EX |
| Price | USD 3,350 (FOB Henan) |
| Construction Material | Borosilicate Glass 3.3 (DIN ISO 3585) |
| Temperature Range | −80 °C to +200 °C |
| Pressure Rating | −0.1 MPa (vacuum) to 0 MPa (atmospheric only) |
| Frame | SUS304 stainless steel + 6061-F aluminum alloy with epoxy powder coating |
| Mobility | Locking casters (two with brakes) |
| Drive Motor & Control Box | Exd II BT4 certified explosion-proof (IEC 60079-1, GB 3836.1–2010) |
| Stirring Shaft | SUS304 core with full PTFE overmolding |
| Impeller | Solid PTFE blades |
| Sealing System | Proprietary dual-lip mechanical seal with graphite-impregnated PTFE stationary ring |
| Drain Valve | Zero-holdup PTFE-lined ball valve with bottom-mounted flush port |
| Jacket Inlet/Outlet | Dual 1/2″ NPT stainless steel ports with flexible insulated SS braided hoses (stress-relieved connection) |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | GRF-80CE |
| Instrument Category | Jacketed Glass Reactor |
| Volume Class | Medium-Scale |
| Construction Material | Borosilicate Glass 3.3 |
| Operating Pressure | Low Vacuum to Atmospheric (–0.1 to 0 MPa) |
| Capacity | 80 L |
| Ultimate Vacuum | –0.098 MPa |
| Jacket Volume | ~25 L |
| Condenser Heat Transfer Area | ~0.954 m² |
| Feed Bottle Volume | 10 L |
| Receiver Bottle Volume | 20 L |
| Temperature Range | –80 °C to +200 °C |
| Stirring Motor | 370 W DC Brushless |
| Speed Range | 20–500 rpm |
| Speed Accuracy | ±1 rpm (display), ±0.7% (≤300 rpm), ±1% (>300 rpm) |
| Max Torque | 5.4 N·m |
| Power Supply | 100–240 V AC, 50/60 Hz |
| Frame Material | Q235 + 6061-F Aluminum + SUS304 |
| Drip Tray Material | SUS316L |
| Stirrer Shaft & Blade | SUS304 core with PTFE cladding / PTFE blades |
| Sealing | Proprietary PTFE-coated bearing assembly |
| Temperature Sensor | PT100 (PTFE-sheathed) |
| Max ΔT (inner/outer wall) | ≤80 °C |
| Drain Valve | Zero-holdup PTFE-lined valve, 380 mm above floor |
| Interface | RS485 port on control panel |
| Port Configuration | 7 standard ground-glass and flanged openings (60# stirrer, 35# temp sensor, 50# condenser, dual 34# liquid feed, 40# feed bottle, 95# solid feed) |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | LT-50-80 |
| Cooling Capacity at −80 °C | 1000 W |
| Temperature Range | −80 °C to −40 °C |
| Temperature Stability | ±2 °C |
| Power Supply | 3~ 380 V, 50 Hz |
| Total Power Consumption | 9.8 kW |
| Refrigerant | R404A/R23 |
| Pump Flow Rate | 30 L/min |
| Max. Pressure | 1.0 bar |
| Reservoir Volume | 10 L |
| Dimensions (L×W×H) | ≈1200×710×1280 mm |
| Weight | 350 kg |
| Evaporator | Brazed Plate Heat Exchanger |
| Pump Type | Cryogenic-Optimized Magnetic Drive Circulating Pump |
| Construction | SUS304 Stainless Steel Reservoir & Tubing |
| Cabinet Material | SPCC Electrostatic Powder-Coated Steel |
| Cooling Method | Air-Cooled |
| Safety Protections | High/Low Pressure, Oil Pressure, Leakage, Overload, Overheat |
| Refrigerant Compliance | GB/T 7778–2008, EU F-Gas Regulation Compliant |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | RJHS-2020 |
| Quotation | Available Upon Request |
| Empty Chamber Temperature | −10 °C |
| Operating Temperature Range | −10 °C to 20 °C |
| Ultimate Vacuum Pressure | 50 mbar |
| Ambient Temperature Limit | ≤25 °C |
| Ambient Relative Humidity Limit | ≤60% RH |
| Power Supply | 220–240 V~, 50 Hz |
| Temperature Display | Digital |
| Pumping Speed | 25 L/min |
| Total Power Consumption | 545 W |
| Rated Current | 2.5 A |
| Dimensions (W×D×H) | 320 mm × 450 mm × 570 mm |
| Net Weight | 61 kg |
| Brand | The Great Wall |
|---|---|
| Origin | Shanghai, China |
| Model | SHB-III |
| Pump Type | Water-Circulating Vacuum Pump |
| Oil-Free Design | Yes |
| Air Displacement Rate | 10 L/min |
| Ultimate Vacuum | 0.098 MPa (20 mbar) |
| Dimensions (W×D×H) | 385 × 280 × 420 mm |
| Weight | 9.5 kg |
| Motor Power | 180 W |
| Water Tank Capacity | 15 L |
| Operating Temperature Range | 5–35 °C |
| Relative Humidity Limit | ≤70% |
| IP Rating | IP20 |
| Dual Vacuum Ports | Yes |
| Integrated Check Valve | Yes |
| Motor Shaft Material | 304 Stainless Steel |
| Sealing Material | Fluoroelastomer (FKM) |
| Fluid Silencer | Integrated |
| Water Reuse System | Closed-loop Circulation |
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Authorized Distributor |
| Region of Manufacture | Domestic (China) |
| Model | ZN-3000 |
| Quotation | Upon Request |
| Temperature Range | −50 °C to 300 °C |
| Temperature Control Accuracy | ±1 °C |
| Stirring Speed Range | 10–300 rpm |
| Stirring Speed Accuracy | ±5 rpm |
| pH Range | 0–14 |
| pH Control Accuracy | ±0.4 pH |
| Dosing Pump Speed Range | 0–100 rpm |
| Dosing Speed Accuracy | ±0.4 rpm |
| Dosing Duration Range | 0–9999 min |
| Torque Display Range | 0–10 N·m |
| Programmable Control Segments | 50 |