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

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BrandThe Great Wall
OriginHenan, China
Manufacturer TypeDirect Manufacturer
Origin CategoryDomestic
ModelGRF-100
Instrument ClassificationJacketed Glass Reactor
Vessel MaterialASTM E438 Type I, Class A 3.3 borosilicate glass
Effective Working Volume100 L
Minimum Agitation Volume~5 L
Operating Temperature Range−80 °C to +200 °C
Pressure Rating−0.1 MPa (vacuum) to 0 MPa (atmospheric)
Jacket Volume25 L
Jacket Pressure Limit≤0.03 MPa
Thermal Shock ResistanceΔT ≤ 80 °C
Vacuum Level≤ −0.098 MPa (absolute)
Stirring Speed Range50–500 rpm
Speed Accuracy±1 rpm
Motor Power250 W
Drive TypeThree-phase AC inverter-controlled motor
Stirring SealVacuum-rated mechanical seal with PTFE components
Stirrer ConfigurationTriple-layer impeller assembly (four inclined-blade open turbine + two four-flat-blade open turbines)
Impeller & Shaft Material06Cr19Ni10 (AISI 316L) substrate with full PTFE cladding
Bottom Valve Outlet IDφ21 mm
Discharge Port Diameterφ33 mm
Condenser Surface Area0.954 m²
Condenser Joint Size40/38
Constant-Pressure Addition Funnel Capacity10,000 mL
Solid Feed Port95# standard taper (φ338 mm flange)
Receiver Flask Capacity20,000 mL
Frame ConstructionHybrid structure — stainless steel 06Cr19Ni10 base, carbon steel frame with epoxy-polyester powder coating, and anodized aluminum uprights
CastersLocking heavy-duty polyurethane wheels
Drip TrayAISI 316L stainless steel
Temperature SensorPT100 RTD (IEC 60751 Class B), digital display, ±0.1 °C accuracy
Ambient Operating Conditions5–35 °C, ≤70% RH (non-condensing)
Overall Dimensions (W×D×H)1250 × 1000 × 2470 mm
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BrandThe Great Wall
OriginHenan, China
Manufacturer TypeDirect Manufacturer
Product CategoryDomestic
ModelGR-5
Instrument ClassificationReactor
Volume ClassSmall-Scale
Operating PressureLow-Pressure (Vacuum to Atmospheric)
Capacity5 L
Glass MaterialBorosilicate 3.3
Temperature Range−80 °C to +200 °C
Jacket Pressure Rating≤ 0.03 MPa
Thermal Shock Resistance80 °C
Stirring Speed Range50–500 rpm
Speed Accuracy±1 rpm
Motor Power90 W
Drive TypeThree-Phase Asynchronous Motor with Frequency Converter Control
Sealing SystemVacuum-Compatible Mechanical Seal with PTFE Components
Stirrer ConfigurationSingle-Layer Four-Inclined-Blade Open Turbine
Stirrer Shaft & Blades06Cr19Ni10 Stainless Steel Core with Full PTFE Cladding
Jacket Inlet/OutletRc 3/4 Threaded Fittings with Stainless Steel Insulated Flexible Hoses
Condenser Length435 mm
Condenser Surface Area~0.045 m²
Condenser Joint Size29/32
Dropping Funnel Capacity500 mL (29/32 Joint)
Temperature SensorPT100, Digital Display, ±0.1 °C Accuracy
Frame Material06Cr19Ni10 Stainless Steel + Powder-Coated Carbon Structural Steel + Powder-Coated Aluminum Alloy
Overall Dimensions (W×D×H)~650 × 550 × 1600 mm
Net Weight~34 kg
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BrandThe Great Wall
OriginHenan, China
Manufacturer TypeDirect Manufacturer
Country of OriginChina
ModelGR-1-3
Price RangeUSD 2,800 – 7,200 (FOB)
Usable Volume1.0 L (Micro-to-Small Scale)
Construction MaterialBorosilicate Glass 3.3
Operating Pressure Range−0.1 to 0.0 MPa (Vacuum to Atmospheric)
Jacket Capacity~0.3 L
Condenser Heat Transfer Area~0.025 m²
Constant-Pressure Funnel Capacity200 mL
Vacuum Level≤ −0.098 MPa (≤ 2 kPa absolute)
Temperature Range−80 °C to +200 °C
Stirring Speed50–500 rpm (Infinitely Variable)
Stirring Torque70 N·cm
Stirring Power70 W
Temperature SensorPt100 (±0.1 °C accuracy)
Sealing MaterialPTFE
Frame MaterialSUS304 Stainless Steel
Stirrer Shaft & BladesSUS304 with PTFE coating
Stirrer TypeAnchor/Paddle-type with PTFE blades
Electrical Supply110 V / 60 Hz or 220–240 V / 50–60 Hz
Ambient Operating Conditions5–35 °C, ≤70% RH
Overall Dimensions (W×D×H)~480 × 420 × 1100 mm
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BrandThe Great Wall
OriginHenan, China
Manufacturer TypeDirect Manufacturer
Country of OriginChina
ModelGRL-50
Price RangeUSD 7,000 – 14,000 (FOB)
Usable Volume50 L (Medium-Scale)
Construction MaterialBorosilicate Glass 3.3
Operating Pressure Range−0.1 to 0.0 MPa (Vacuum to Atmospheric)
Jacket Pressure Rating≤ +0.03 MPa
Maximum Vacuum Level0.098 MPa (absolute)
Temperature Range−80 °C to +200 °C
Temperature Differential Limit (Inner vs. Outer Wall)≤ 80 °C
Vacuum System Leak Rate≤ 2 kPa/h
Stirring Motor140 W, Three-Phase Asynchronous, Inverter-Controlled
Speed Range50–500 rpm
Speed DisplayDigital LED
Temperature SensorPt100 (SUS304 sheath, PTFE-insulated)
Temperature Display Accuracy±0.1 °C
Stirrer TypeAnchor/Flat Blade (PTFE-coated blades, SUS304 shaft with full PTFE cladding)
Sealing MaterialPTFE
Drain ValveSide-Mounted, Zero-Dead-Volume, Corrosion-Resistant
MobilityLockable Casters
Vertical Travel400 mm
Rotation Capability120° tilt
Condenser Heat Transfer Area~0.42 m²
Constant-Pressure Funnel Capacity1000 mL
Jacket Volume~16.0 L
Dimensions (W×D×H)~860 × 1100 × 2500 mm
Power Supply220–240 V~, 50/60 Hz
Ambient Operating Conditions5–35 °C, RH ≤ 70%
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BrandThe Great Wall
OriginHenan, China
Manufacturer TypeDirect Manufacturer
Origin CategoryDomestic
ModelGR-10T
Price RangeUSD 7,000–14,000 (FOB)
Vessel Capacity10 L
Instrument MaterialBorosilicate Glass 3.3
Operating Pressure Range−0.1 to 0 MPa (gauge)
Vacuum Level−0.098 MPa (absolute)
Jacket Volume~3.0 L
Condenser Heat Transfer Area0.234 m²
Constant-Pressure Dropping Funnel1000 mL
Distillation Column DimensionsØ85 × 715 mm
PackingGlass Raschig Rings
Number of Ports on Reactor Head6
Temperature Range−80 °C to +200 °C
Max Allowable ΔT (Jacket vs. Vessel)≤80 °C
Jacket Max Pressure+0.03 MPa
Stirring Motor Power90 W
Speed ControlFrequency Inverter
Speed Range50–500 rpm
Temperature SensorPt100 (SUS304 sheath + PTFE jacket)
Temp Display Accuracy±0.1 °C
Seals & ValvesPTFE
Bottom Discharge Valve Height320 mm
Agitator TypePaddle-type
Blade MaterialPTFE-coated SUS304 shaft & blades
Frame MaterialSUS304 stainless steel
MobilityLocking Casters
Power Supply220–240 V~, 50/60 Hz
Ambient Operating Conditions5–35 °C, ≤70% RH
Overall Dimensions (W×D×H)~1080 × 650 × 2380 mm
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BrandGreat Wall
OriginHenan, China
Manufacturer TypeDirect Manufacturer
Country of OriginChina
ModelCLZZ-30
Instrument CategoryOther Reactors
Usable VolumeMedium-Scale
Construction MaterialBorosilicate Glass 3.3 (Body), SUS304 Stainless Steel + Anodized 6061-F Aluminum (Frame)
Operating Pressure RangeVacuum to Atmospheric
Capacity30 L (Filtration Vessel), 20 L (Collection Flask)
Vacuum Level≤ −0.098 MPa (≤ 98 kPa absolute)
Filtration Area DiameterØ300 mm
Filter Disc MaterialPTFE Sintered Frit
Pore Size20–30 µm
Temperature Range−80 °C to +200 °C
Frame Dimensions (W×D×H)Approx. 650 × 650 × 1600 mm
Port Standards40# Flange (Liquid Feed), 24/29# Standard Taper Ground Joints (Vacuum & Vent)
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BrandThe Great Wall
OriginHenan, China
Manufacturer TypeDirect Manufacturer
Origin CategoryDomestic
ModelGR-20
Instrument ClassificationJacketed Glass Reactor
Usable VolumeMedium-Scale
Construction MaterialBorosilicate Glass 3.3
Operating PressureLow-Pressure (Vacuum to Atmospheric)
Capacity20 L
Glass MaterialBorosilicate Glass 3.3
Temperature Range−80 °C to +200 °C
Internal Pressure Range−0.1 MPa to 0 MPa
Jacket Pressure Rating≤ 0.03 MPa
Thermal Shock Resistance80 °C
Stirring Speed Range50–500 rpm
Speed Accuracy±1 rpm
Motor TypeThree-Phase Asynchronous Motor
Motor Power90 W
Speed ControlFrequency Inverter
Stirrer Shaft Material06Cr19Ni10 (AISI 304) with PTFE Cladding
Impeller MaterialPTFE-Coated 06Cr19Ni10
Impeller TypeSingle-Layer Four-Inclined-Blade Open Turbine
Sealing SystemVacuum-Compatible Mechanical Seal with PTFE Support Bearings
Temperature SensorPT100
Temp. Display Accuracy±0.1 °C
Frame Material06Cr19Ni10 + Powder-Coated Aluminum Alloy
MobilityCasters with Brakes
Drain Valve Outletφ33 mm
Condenser Cooling Area~0.341 m²
Condenser/Port Interface40/38 standard taper
Addition Funnel Capacity2000 mL
Central Lid Port50#
Side PortsS51 (35#), 40/38, 34/35, 80# Solid Feed Port
Lid & Body MaterialBorosilicate Glass 3.3
Jacket Inlet/OutletRc 3/4
Overall Dimensions (W×D×H)~825 × 665 × 1960 mm
Net Weight~67 kg
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BrandThe Great Wall
OriginHenan, China
Manufacturer TypeDirect Manufacturer
Country of OriginChina
ModelGR-150L
Price RangeUSD 7,000–14,000 (FOB)
Usable Volume150 L (Large-Scale Lab Use)
Construction MaterialBorosilicate Glass 3.3
Operating Pressure Range−0.1 to 0 MPa (Low-Pressure / Vacuum Service)
Jacket Volume~45 L
Condenser Heat Exchange Area~1.32 m²
Feed Bottle Capacity10 L
Receiver Bottle Capacity20 L
Temperature Range−80 °C to +200 °C
Maximum ΔT (Inner/Outer Wall)≤80 °C
Jacket Pressure Rating≤+0.03 MPa
Vacuum System Leak Rate≤2 kPa/h
Stirring Motor Power370 W
Speed ControlFrequency Inverter
Speed Range50–300 rpm
Temperature SensorPt100 (±0.1 °C display accuracy)
Stirrer TypePaddle Agitator with PTFE Blades
Shaft MaterialSUS304 stainless steel sheathed in PTFE
Sealing MaterialPTFE
CastersLockable
Power Supply220–240 V~, 50/60 Hz
Ambient Operating Conditions5–35 °C, ≤65% RH
Overall Dimensions (W×D×H)~1250 × 1100 × 2700 mm
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BrandThe Great Wall
OriginHenan, China
Manufacturer TypeOEM/ODM Manufacturer
Country of OriginChina
ModelPSS-500 Series
Capacity Options5 L, 10 L, 20 L, 50 L, 100 L, 200 L
Reactor MaterialBorosilicate Glass 3.3 or ASTM A240 S31603 Stainless Steel
Lid MaterialPTFE or 316L SS
AgitationTop-mounted mechanical stirring (50–300 rpm)
Temperature Range0–70 °C
Filtration Plate316L SS or Polyethylene (PE)
Inert Gas PurgingIntegrated N₂/Ar sparging at reactor base and headspace
Solvent Delivery Accuracy≤ ±1% FS
Control SystemPLC-based with HMI interface
Data LoggingReal-time recording of temperature, agitation speed, flow rate, pressure
Safety Certification (Explosion-Proof Variant)ATEX/IECEx Zone 2, Group IIB, T4
ComplianceDesigned per ISO 9001
Power Supply220 V / 380 V AC, 50 Hz
Frame MaterialAnodized aluminum alloy
Safety FeaturesEmergency stop, overtemperature alarm, flow deviation alert, pressure interlock
CustomizationFully configurable for resin loading, coupling/deprotection cycles, wash protocols, and solvent recovery integration
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BrandThe Great Wall
OriginHenan, China
Manufacturer TypeDirect Manufacturer
Origin CategoryDomestic
ModelGR-10Ex
Capacity10 L
Vessel MaterialBorosilicate Glass 3.3
Operating Pressure Range-0.1 MPa to atmospheric
Temperature Range-80 °C to 200 °C
Jacket Pressure Limit≤0.03 MPa
Stirring Speed Range50–500 rpm
Speed Accuracy±1 rpm
Motor Power180 W
Explosion-Proof RatingExdb II BT4 Gb
Stirring Shaft & Blade Material06Cr19Ni10 (AISI 304) with PTFE cladding
Sealing TypeVacuum Mechanical Seal
Flange Diameter215 mm
Bottom Valve IDφ21 mm
Discharge Port IDφ33 mm
Jacket Volume8 L
Thermal Shock Resistance80 °C
Condenser Heat Transfer Area~0.234 m²
Ambient Operating Conditions5–35 °C, ≤70% RH
Dimensions (W×D×H)~825×720×1780 mm
Net Weight~61 kg
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BrandThe Great Wall
OriginHenan, China
Manufacturer TypeDirect Manufacturer
Country of OriginChina
ModelGR-30TEx
Usable Volume30 L
Vessel MaterialBorosilicate Glass 3.3 (DIN ISO 3585)
Working Pressure Range−0.1 to 0.0 MPa (vacuum only)
Maximum Vacuum0.098 MPa
Jacket Volume~10 L
Condenser Heat Transfer Area0.341 m²
Temperature Range−80 °C to +200 °C
Stirring Speed Range50–500 rpm
Motor Power180 W
Explosion ProtectionExd II BT4 (certified components)
Temperature SensorPt100 (±0.1 °C accuracy)
Frame MaterialSUS304 Stainless Steel
Dimensions (W×D×H)1200 × 750 × 2750 mm
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BrandThe Great Wall
OriginHenan, China
Manufacturer TypeDirect Manufacturer
Country of OriginChina
ModelGFY-10L
Price RangeUSD 2,800–7,000 (FOB)
Usable Volume10 L
Vessel MaterialBorosilicate Glass 3.3
Operating Pressure Range−0.1 MPa to 0.0 MPa (Vacuum to Atmospheric)
Frame MaterialSUS304 Stainless Steel
Temperature Resistance−80 °C to +200 °C
Stirring Motor Power90 W
Speed ControlFrequency Inverter
Rotational Speed Range50–500 rpm
Lid Port ConfigurationOne 50# flange (stirrer), Two 34/35 standard taper joints (liquid feed & vent), Electrical Supply: 220–240 V~, 50 Hz
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BrandThe Great Wall
OriginHenan, China
Manufacturer TypeDirect Manufacturer
Origin CategoryDomestic
ModelGRL-20
Instrument ClassificationGlass Reactor
Usable VolumeMedium-Scale
Construction MaterialBorosilicate Glass 3.3
Operating Pressure Range−0.1 MPa to 0.0 MPa (Vacuum to Atmospheric)
Capacity20 L
Temperature Range−80 °C to +200 °C
Drive MechanismMotorized Speed-Controlled Stirring System with Adjustable Height & 120° Tilt Functionality
Frame Material06Cr19Ni10 Stainless Steel + Carbon Structural Steel with Powder Coating + Anodized Aluminum Components
Stirring Shaft06Cr19Ni10 Stainless Steel Core with PTFE Cladding
Impeller MaterialPTFE
Sealing SystemProprietary Magnetic or Mechanical Seal Assembly (Configurable)
Discharge ValveTop-Mounted Angled Drain Valve
Jacket Inlet/OutletStainless Steel Flexible Insulated Hoses
MobilityLocking Casters with Brake Mechanism
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BrandThe Great Wall
OriginHenan, China
Manufacturer TypeDirect Manufacturer
Equipment CategoryDomestic
ModelGR-2
Reactor TypeJacketed Glass Reactor
Working Volume2 L
Vessel MaterialBorosilicate Glass 3.3
Temperature Range−80 °C to +200 °C
Pressure Rating−0.1 MPa to 0 MPa (Vacuum to Ambient)
Stirring DriveTop-Mounted, Tilted Discharge Configuration
Jacket Inlet/OutletStainless Steel Insulated Flexible Hoses
Frame Material06Cr19Ni10 (AISI 304) + Carbon Structural Steel with Epoxy Powder Coating + Anodized Aluminum
Stirring ShaftAISI 304 Core with PTFE Cladding
Impeller MaterialPTFE
Sealing SystemProprietary Magnetic Coupling & Mechanical Seal Hybrid Bearing Assembly
ControlElectronic Speed Regulation (0–600 rpm typical range)
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BrandThe Great Wall
OriginHenan, China
Manufacturer TypeDirect Manufacturer
Country of OriginChina
ModelGR-20
Capacity20 L
Vessel MaterialGG17 Borosilicate Glass (3.3)
Operating PressureLow-pressure (up to 0.1 MPa gauge)
Vacuum Level–0.098 MPa (absolute)
Jacket ConfigurationTriple-layer (inner reaction vessel + dual insulating/temperature-control jackets)
Stirring MotorAC Gearmotor with Frequency Control
Sealing SystemPTFE-faced mechanical seal + ground-glass joints
Temperature SensorPt100 RTD probe
Discharge ValvePTFE-lined adjustable bottom valve
FrameStainless steel mobile column-type support structure
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BrandThe Great Wall
OriginHenan, China
Manufacturer TypeDirect Producer
Country of OriginChina
ModelGFY-10L
Capacity10 L
Vessel MaterialHigh-Borosilicate Glass (DIN/ISO 3585 compliant)
Operating Pressure RangeMedium-pressure (up to 0.4 MPa gauge)
Ultimate Vacuum≤ –0.098 MPa (absolute, equivalent to ~2 mbar)
Valve TypePTFE/FKM rotary stopcock with precision flow control
StirringVariable-speed overhead mechanical stirrer (0–200 rpm, torque-regulated)
Application ClassPilot-scale liquid–liquid extraction
ComplianceDesigned per GB/T 21673–2008 (Laboratory Glassware — Specifications for Separatory Funnels), compatible with ISO 17025-accredited lab workflows
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BrandGreat Wall
OriginHenan, China
Manufacturer TypeDirect Manufacturer
Country of OriginChina
ModelGR-20TEx
Usable Volume20 L
Vessel MaterialBorosilicate Glass 3.3
Operating Pressure Range−0.1 to 0.0 MPa (gauge)
Jacket Volume~6.0 L
Condenser Heat Transfer Area~0.249 m²
Constant-Pressure Funnel Capacity2000 mL
Temperature Range−80 °C to +200 °C
Max. ΔT Between Vessel Interior and Exterior≤80 °C
Jacket Pressure Limit≤0.03 MPa
Stirring Motor180 W, 3-phase asynchronous, frequency-controlled, 50–500 rpm
Stirrer TypePaddle-type with PTFE blades
Shaft MaterialSUS304 stainless steel sheathed in PTFE
SealingHigh-performance mechanical seal with low-wear bearing
Temperature SensorPt100 (±0.1 °C display accuracy), PTFE-sheathed
Frame MaterialSUS304 stainless steel
Explosion ProtectionEx d IIB T4 Gb per GB/T 3836.1–2021 & IEC 60079-0:2017
Certified ComponentsAll explosion-proof components carry valid third-party certification from CNEX or equivalent accredited body
Power Supply220–240 V~, 50 Hz
Ambient Operating Conditions5–35 °C, RH ≤70 %
MobilityEquipped with locking casters
Bottom Discharge Valve Height~320 mm above floor level
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BrandThe Great Wall
OriginHenan, China
Manufacturer TypeDirect Manufacturer
Origin CategoryDomestic
ModelGR-150EX
Price RangeUSD 7,000–14,000 (FOB)
Usable Volume150 L (Large-Scale Lab Use)
Construction MaterialBorosilicate Glass 3.3
Operating Pressure Range−0.1 MPa to 0.0 MPa (Vacuum to Atmospheric)
Jacket Capacity~45 L
Vacuum Performance≤ 2 kPa/h pressure rise rate
Condenser Heat Exchange Area~1.32 m²
Stirring Power370 W
Speed Range50–300 rpm (Variable-Frequency Drive)
Temperature Range−80 °C to +200 °C
Temperature SensorPt100 (±0.1 °C display accuracy)
Sealing MaterialPTFE
Stirrer TypePaddle-type with PTFE-coated blades
Shaft MaterialSUS304 stainless steel with PTFE cladding
Jacket Inlet/Outlet3/4″ NPT female threads
Overall Dimensions (W×D×H)~1250 × 1100 × 2700 mm
Ambient Operating Conditions5–35 °C, ≤65% RH
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BrandThe Great Wall
OriginHenan, China
Manufacturer TypeDirect Manufacturer
Origin CategoryDomestic
ModelGR-5~100
Capacity5–100 L
Vessel MaterialBorosilicate Glass 3.3
Working Pressure Range−0.1 MPa to 0 MPa (gauge)
Vacuum Level0.095 MPa (absolute)
Temperature Range−80 °C to +200 °C
Jacket ConfigurationDouble-jacketed (vacuum-insulated outer jacket option available)
Drive Motor OptionsThree-phase induction motor or brushless DC motor
Explosion Protection RatingEx db IIB T4 Gb
Stirring Shaft Material06Cr19Ni10 stainless steel with PTFE cladding
Impeller MaterialPTFE
Sealing SystemProprietary mechanical seal assembly
Frame Material06Cr19Ni10 stainless steel + aluminum alloy with epoxy powder coating
MobilityCasters with locking brakes
Drain ValveZero-holdup PTFE-lined discharge valve
Jacket Fluid Inlet/OutletStainless steel insulated flexible hoses
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BrandThe Great Wall
OriginHenan, China
Manufacturer TypeDirect Manufacturer
Origin CategoryDomestic
ModelGR-10
Instrument ClassificationJacketed Glass Reactor
Usable VolumeMedium-Scale (10 L)
Construction Material3.3 Borosilicate Glass
Operating Pressure RangeVacuum to Atmospheric (–0.1 MPa to 0 MPa)
Jacket Pressure Rating≤ 0.03 MPa
Temperature Range–80 °C to +200 °C
Thermal Shock Resistance80 °C
Stirring Speed Range50–500 rpm
Speed Accuracy±1 rpm
Motor Power90 W
Drive TypeThree-Phase Asynchronous Motor with Frequency Inverter Control
Stirrer Shaft & Blades06Cr19Ni10 Stainless Steel Core with PTFE Cladding
Sealing SystemVacuum-Compatible Mechanical Seal with PTFE Bearings
Condenser Surface Area0.234 m²
Standard Ground Joint Sizes40/38, 35/30, 29/22, 80/60
Main Flask Flange Diameter215 mm
Bottom Valve Inner Diameterφ21 mm
Drain Port Outletφ33 mm
Chiller Hose ConnectionRc 3/4
Temperature SensorPT100 (±0.1 °C accuracy)
Frame Material06Cr19Ni10 Stainless Steel + Powder-Coated Aluminum Alloy
MobilityLocking Casters with Brake
Dimensions (W×D×H)≈ 825 × 665 × 1780 mm
Net Weight≈ 48 kg
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BrandThe Great Wall
OriginHenan, China
Manufacturer TypeDirect Manufacturer
Country of OriginChina
ModelGR-150
Price RangeUSD 2,800 – 7,000 (FOB)
Usable Volume150 L (Large-Scale Lab Reactor)
Construction MaterialBorosilicate Glass 3.3
Operating Pressure Range−0.1 to 0.0 MPa (Vacuum to Atmospheric)
Jacket Volume~45 L
Condenser Heat Exchange Area~1.32 m²
Feed Bottle Capacity10 L
Receiver Flask Capacity20 L
Temperature Range−80 °C to +200 °C
Max. ΔT (Inner–Outer Wall)≤80 °C
Jacket Max. Pressure≤+0.03 MPa
Vacuum System Leak Rate≤2 kPa/h
Stirring Motor Power370 W
Speed ControlVariable-Frequency Drive (VFD)
Speed Range50–300 rpm
Temperature SensorPt100 (±0.1 °C display accuracy)
Stirrer TypeAnchor/Paddle with PTFE-coated blades
Stirrer ShaftSUS304 stainless steel with PTFE sheath
Seals & GasketsPTFE
Feed PortsTwo 34# standard ground joints, one 95# flange (solid feed), two 40# ground joints (feed bottles), 50# standard spherical joint (condenser), 60# flange (stirrer), 35# flange (Pt100)
Insulated Stainless Steel Flexible Hoses3/4″ male NPT
Discharge Valve Height~370 mm
Footwheel DesignLockable casters
Power Supply220–240 V~, 50/60 Hz
Ambient Operating Conditions5–35 °C, RH ≤65%
Overall Dimensions (W×D×H)~1250 × 1100 × 2700 mm
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BrandGreat Wall
OriginHenan, China
Manufacturer TypeDirect Manufacturer
Origin CategoryDomestic (China)
ModelGR-1
Instrument ClassificationJacketed Glass Reactor
Usable VolumeSmall-Scale
Vessel MaterialBorosilicate Glass 3.3
Capacity1–5 L
Operating Temperature Range−80 °C to +200 °C
Pressure Rating−0.1 MPa to 0 MPa (Vacuum Only)
Jacket Inlet/OutletStainless Steel Insulated Flexible Hoses
Drain ValveZero-Dead-Volume PTFE-Lined Valve
Frame ConstructionHybrid Structure — 06Cr19Ni10 (AISI 304) + Carbon Steel with Epoxy Powder Coating + Anodized Aluminum
Drip Tray Material06Cr19Ni10 Stainless Steel
Stirring ShaftAISI 304 Core with Full PTFE Cladding
Impeller MaterialSolid PTFE
Sealing BearingsImported High-Precision Radial Ball Bearings
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BrandThe Great Wall
OriginHenan, China
Manufacturer TypeDirect Manufacturer
Origin CategoryDomestic
ModelGR-5
Instrument ClassificationJacketed Glass Reactor
Volume ClassSmall-Scale
Vessel MaterialBorosilicate Glass 3.3
Operating PressureLow Pressure (Vacuum to Atmospheric)
Capacity5 L
Vacuum Level0.098 MPa (absolute)
Temperature Range−80 °C to +200 °C
Jacket Pressure Rating≤ 0.03 MPa
Thermal Shock Resistance80 °C
Stirring Speed Range50–500 rpm
Speed Accuracy±1 rpm
Motor Power90 W
Drive TypeThree-Phase Asynchronous Motor with Frequency Converter Control
Sealing TypeVacuum-Compatible Mechanical Seal
Stirrer Shaft & Blades06Cr19Ni10 Stainless Steel Core with PTFE Cladding
Stirrer GeometrySingle-Layer Four-Inclined-Blade Open Turbine
Condenser Surface Area~0.045 m²
Condenser Length435 mm
Standard Ground-Glass Joints29/32 and 50/50
Bottom Valve Outlet Diameterφ25 mm
Temperature SensorPT100, Digital Display, ±0.1 °C Accuracy
Frame Material06Cr19Ni10 Stainless Steel + Powder-Coated Carbon Steel + Anodized Aluminum
Overall Dimensions (W×D×H)~650 × 550 × 1600 mm
Net Weight~34 kg
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BrandThe Great Wall
OriginHenan, China
Manufacturer TypeDirect Producer
Country of OriginChina
ModelGR-5
Price RangeUSD 2,800 – 7,000 (FOB)
Working Volume1–5 L (Standard Configurations: 1 L, 2 L, 3 L, 5 L)
Vessel MaterialHigh-Borosilicate Glass (GG-17 / DIN 7080 equivalent)
Jacket MaterialBorosilicate Glass
Operating Pressure Range−0.1 MPa to 0 MPa (gauge)
Maximum Vacuum Level−0.098 MPa (absolute)
Temperature Range−80 °C to +200 °C
Stirring Speed50–500 rpm
Max Torque300 N·cm (3.0 N·m)
Jacket Capacity1.5 L
Power Supply220–240 V~, 50/60 Hz
Dimensions (W×D×H)535 × 450 × 1230 mm
Sealing ComponentsPTFE/FKM composite stopcocks and discharge valves
Control InterfaceIntegrated digital vacuum gauge and PT100 temperature display module
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