Glass Reactor Systems: Jacketed Vessel Solutions for Chemical Synthesis, Distillation & Filtration (3L-200L)
2026-07-09
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Product Overview
Nantong Sanjing Chemglass Co., Ltd., a premier chemical glass instrument manufacturer established in 2006, presents its comprehensive Glass Reactor Systems — the essential equipment for mixing, reaction, distillation, and filtration across the chemistry and pharmaceutical industries. Available in volumes ranging from 3L to 200L, these jacketed vessel systems deliver precise temperature control, full process transparency, and unmatched versatility for modern laboratory and pilot-scale applications.
The jacketed vessel design features a cooling or heating jacket surrounding the reactor, through which a temperature-controlled fluid is circulated. This enables precise thermal regulation of the contents — a critical requirement for reactions sensitive to temperature fluctuations. The fully transparent borosilicate glass construction allows operators to visually monitor every stage of the reaction in real time, making it an ideal testing platform for fine chemicals, biochemical research, pharmaceutical intermediates, precious metal purification, new graphene energy materials, and aerospace material development.
Key Specifications
Parameter
PGR-3
PGR-5
PGR-10
PGR-30
PGR-50
PGR-100
PGR-200
Volume (L)
3
5
10
30
50
100
200
Neck No. on Cover
4
5
6
6
6
6
6
Inner Vessel Dia. (mm)
150
180
230
330
365
460
600
Outer Vessel Dia. (mm)
200
230
290
365
410
500
650
Motor Power (W)
40
60
140
140
140
250
750
Vacuum Degree (Mpa)
0.098
0.098
0.098
0.098
0.098
0.098
0.098
Rotation Speed (rpm)
50-1400
50-600
50-600
50-600
50-600
50-600
50-600
Torque (Nm)
0.27
0.95
2.23
2.23
2.23
3.98
6.37
Advanced Customization Options
The glass reactor systems are fully customizable to meet diverse process requirements. Three key customization areas ensure optimal performance for any application:
Stirring Blades
Multiple blade configurations are available, including PTFE and stainless steel options. All blades can be securely clamped onto the stirring shaft for reliable operation across the full speed range.
Vacuum Jacket
An optional additional vacuum jacket provides superior thermal insulation, eliminates frost formation, and maintains crystal-clear visibility inside the vessel — essential for low-temperature reactions where visual monitoring is critical.
Thermo-Fluid Ports
Multiple connection options are offered for thermo-fluid ports, including glass barb, stainless steel barb, flange, and NPT thread configurations, ensuring compatibility with existing laboratory infrastructure.
Complete System Integration
Sanjing Chemglass provides comprehensive one-stop matching, keeping pace with evolving industry demands. Reactor systems can be integrated with circulating water multi-purpose vacuum pumps and high-low temperature circulation devices, delivering a complete reaction synthesis platform ready for immediate deployment. This turnkey approach spans from simple single-kettle setups to complex multi-step process systems, with free expansion capability to accommodate growing research needs.
Quality Packaging and Global Delivery
A strict packing process ensures the safety and completeness of every shipment. Each order receives sufficient inner protection with multiple material layers, followed by qualified wooden case or carton packaging tailored to the product specifications and customer requirements. The company's strategic location in Nantong City — just two hours from Shanghai — provides convenient transportation access for international logistics via air, sea, and express courier services.
Manufacturing Excellence
Operating from a 16,000 square meter facility with over 100 employees, Nantong Sanjing Chemglass achieves annual sales exceeding USD 20 million. The company's expertise spans design, manufacturing, equipment selection, instrument supporting, installation, commissioning, and maintenance — providing end-to-end solutions for clients in pharmaceuticals, chemicals, biological pharmacy, new materials, and precious metals processing. All glass reactor products come with comprehensive warranty coverage and responsive after-sales support, including free replacement parts during the warranty period and expert technical troubleshooting via email with photos or video documentation.
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Ex-Proof Vacuum Rotary Evaporator: Advanced Solvent Recovery System for Heat-Sensitive Material Processing
2026-07-09
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Product Overview
Nantong Sanjing Chemglass Co., Ltd., an established Chinese manufacturer of chemical glass instruments since 2006, proudly introduces its Ex-Proof Vacuum Rotary Evaporator series. Engineered with explosion-proof electrical apparatus for both motor and control components, this rotary evaporator is specifically designed for environments where safety against flammable solvents and volatile compounds is paramount.
The rotary evaporator operates on a proven principle: the glass flask containing materials rotates under constant temperature heating while the system maintains negative pressure to lower the boiling point of the solvent. As the liquid forms a thin film across the inner surface of the rotating flask, evaporation accelerates significantly. The vapor is then efficiently condensed through the glass coil condenser and collected in the receiving flask. This process makes it uniquely suited for concentration, crystallization, separation, and solvent recovery of heat-sensitive materials.
Key Specifications
Parameter
PR-2
PR-5
PR-10
PR-20
PR-50
Evaporation Flask
2L / 29#
5L / 50#
10L / 95#
20L / 95#
50L / 125#
Receiving Flask
1L
2L / 3L
5L
10L + 5L
10L + 10L
Motor Power (W)
40
90
120
120
180
Bath Power (kW)
1.5
2
3
5
5
Rotation Speed (rpm)
10-180
10-90
5-110
5-110
5-110
Evaporation Rate (L/h)
1.2
2
3.5
5
8
Power Supply (V)
220
220
220
220
220
Advanced Technology for Superior Performance
The ex-proof rotary evaporator incorporates advanced frequency conversion and electronic speed regulation technology, ensuring stable motor operation across its full speed range. This precision control not Pre-extends equipment longevity but also significantly improves evaporation and recovery rates — a critical advantage for laboratories handling expensive or rare solvents.
The integrated bath lifting mechanism and vacuum feeding system work together to minimize the risk of rotating glass flask breakage during operation. For low boiling point evaporation applications, the receiving flask can be immersed in an ice bath to effectively reduce secondary evaporation, maximizing solvent recovery efficiency.
User-Friendly Design Features
Explosion-Proof Certification — Motor and control parts fully rated for hazardous environments
Frequency Conversion Speed Control — Electronic regulation for precise rotation speed adjustment (5-180 rpm across models)
Bath Lift System — Smooth vertical movement for safe flask engagement and disengagement
Vacuum Feeding — Reduced glass breakage risk with controlled material introduction
Ball-Milling Mouth Connection — Receiving flask features easy-remove ball-joint connection with high-performance sealing
Ice Bath Compatibility — Secondary evaporation reduction for low boiling point operations
5 Model Options — From 2L bench-top units to 50L pilot-scale systems (PR-2 through PR-50)
Ideal Applications
This rotary evaporator is specifically designed for laboratories and production facilities working with heat-sensitive materials that require gentle, controlled evaporation. Primary applications include pharmaceutical R&D, chemical synthesis, natural product extraction, environmental analysis, and academic research. The ex-proof construction makes it particularly suitable for facilities handling flammable solvents such as ethanol, methanol, acetone, and various petroleum-based extracts.
Customization and OEM/ODM Services
Nantong Sanjing Chemglass maintains a strong development team capable of providing comprehensive OEM and ODM services. Products can be manufactured according to specific customer requirements, with flexible minimum order quantities and competitive pricing for bulk orders. The company accepts various delivery terms including FOB, CIF, door-to-door, and air freight — tailored to the customer's logistics preference.
Global Shipping and Packaging
Through established partnerships with international express carriers including DHL, UPS, FedEx, TNT, and major shipping lines, Nantong Sanjing Chemglass ensures safe and timely delivery worldwide. All glass equipment is carefully packed to protect fragile components during transit, with air and sea shipping options available for larger orders.
About Nantong Sanjing Chemglass Co., Ltd.
Established in 2006, Nantong Sanjing Chemglass Co., Ltd. has built a reputation as a reliable manufacturer and trader specializing in the research, development, and production of chemical glass instruments. The company's comprehensive product portfolio includes glass reactors, wiped film evaporators, rotary evaporators, short-path molecular distillation devices, and chemical glass tubing. With nearly two decades of industry experience, Sanjing Chemglass serves universities, research institutes, and production facilities globally, delivering high-quality laboratory equipment backed by professional technical support.
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30L High-Efficient Jacketed Glass Reaction Kettle with Condenser: Precision Chemical Processing Solution
2026-07-09
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Product Overview
Nantong Sanjing Chemglass Co., Ltd., a leading Chinese manufacturer of chemical glass instruments since 2006, proudly presents its 30L High-Efficient Jacketed Glass Reaction Kettle with Condenser. This advanced laboratory reactor system is engineered to deliver exceptional performance across pharmaceutical, chemical, biological pharmacy, and new material research applications.
The complete system integrates a jacketed glass reactor, coil condenser, water-steam separator, glass collector, stirring driving motor, temperature and pressure measuring meters, and a comprehensive electrical control system — providing a turnkey solution for demanding chemical processing workflows.
Key Specifications
Parameter
FPGR-5
FPGR-10
FPGR-30
FPGR-50
Volume (L)
5
10
30
50
Neck No. on Cover
5
6
6
6
Inner Vessel Dia. (mm)
180
230
330
365
Outer Vessel Dia. (mm)
230
290
365
410
Motor Power (W)
120
120
180
180
Vacuum Degree (Mpa)
0.098
0.098
0.098
0.098
Rotation Speed (rpm)
50-600
50-600
50-600
50-600
Torque (Nm)
1.9
1.9
2.86
2.86
Premium Borosilicate Glass Construction
At the core of the reactor's reliability is G3.3 high borosilicate glass, capable of withstanding an impressive temperature range from -100°C to 250°C. This premium material offers outstanding thermal shock resistance and exceptional anti-corrosive properties, making it suitable for the most aggressive chemical reactions. Even under extreme temperature and pressure conditions, the borosilicate glass vessel maintains its structural integrity, ensuring long service life and operational safety.
Advanced Stirring and Control System
Each reactor is equipped with a carefully selected booster motor that delivers consistent stirring performance across the full speed range of 50-600 rpm. The 30L model features a 180W motor producing 2.86 Nm of torque, ensuring thorough mixing even with high-viscosity materials. The integrated temperature and pressure monitoring system provides real-time feedback, enabling precise control over reaction conditions.
Comprehensive System Components
Jacketed Glass Reactor — Dual-layer design for efficient heating and cooling circulation
Coil Condenser — High-efficiency vapor condensation for solvent recovery
Water-Steam Separator — Ensures clean separation of liquid and vapor phases
Glass Collector — Convenient product collection with visual monitoring
Stirring Drive Motor — 180W variable-speed motor with 50-600 rpm range
Temperature & Pressure Meters — Real-time monitoring gauges
Electrical Control System — Centralized control interface
Full Customization Capabilities
Nantong Sanjing Chemglass offers extensive customization options to meet specific laboratory and production requirements. With jacketed reactor volumes ranging from 1L to 200L (the largest available in China), single-wall options up to 250L, and triple-wall configurations from 1L to 50L, the company can accommodate virtually any process scale. A professional technical team provides complete engineering support, including custom design, equipment selection, instrumentation matching, installation, commissioning, and ongoing maintenance services.
Quality Assurance and Global Delivery
All glass equipment is securely packaged in non-fumigation standard wooden cases or export-grade plywood cartons, with both neutral and customized packaging available. For small-volume shipments, international express services including DHL, TNT, EMS, FedEx, and UPS are used. Larger orders are shipped by air freight or ocean freight based on customer preference. The company also provides supporting equipment such as vacuum pumps and heating/cooling systems to deliver complete, ready-to-use laboratory solutions.
About Nantong Sanjing Chemglass Co., Ltd.
Founded in 2006, Nantong Sanjing Chemglass Co., Ltd. has grown into a premier manufacturer and trader specializing in the R&D and production of chemical glass instruments. The company serves universities, research laboratories, and production facilities worldwide with a product portfolio that includes glass reactors, wiped film evaporators, rotary evaporators, short-path molecular distillation devices, and chemical glass tubing. With nearly two decades of industry experience, Sanjing Chemglass has established itself as a trusted partner for clients in pharmaceuticals, chemicals, biological pharmacy, new materials, and precious metal processing sectors.
View More
Nantong Sanjing Chemglass Launches Advanced Vacuum Rotary Evaporator for Chemical & Pharma Laboratories
2026-06-15
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Product Announcement
Nantong Sanjing Chemglass Co., Ltd, one of China's leading manufacturers of chemical glass equipment, today announced the availability of its advanced Chemical Lab Vacuum Rotary Evaporator series, designed to meet the growing demands of pharmaceutical, chemical engineering, and biopharmacy laboratories worldwide. This latest offering reinforces the company's commitment to delivering high-precision, reliable laboratory instrumentation to global markets.
About Nantong Sanjing Chemglass Co., Ltd
Nantong Sanjing Chemglass Co., Ltd is one of the largest professional manufacturers of chemical glass equipment in China. The company specializes in the design, production, and manufacturing of biological and chemical testing instruments and pharmaceutical glass equipment. Their comprehensive product lineup includes glass reactor series, rotary evaporators, chemical glass pipes, glass condenser series, glass reaction devices, bath pots, heating circulators, thermostatic baths, cooling circulators, constant speed stirrers, water circulation vacuum pumps, and laboratory consumables. These products are widely deployed across the pharmaceuticals, chemicals, biological pharmacy, new materials, and noble metals industries. In addition to manufacturing, the company provides end-to-end services including industry-specific design, equipment selection, instrument integration, installation, commissioning, and ongoing maintenance support.
Product Overview: Chemical Lab Vacuum Rotary Evaporator
The rotary evaporator is an indispensable laboratory instrument used for evaporation, concentration, crystallization, drying, separation, and solvent recovery. Developed on the principle of thermostat heating that enables thin-film evaporation under vacuum negative pressure conditions, this equipment serves as a cornerstone technology for modern chemical laboratories and industrial R&D facilities.
Operating Principle
The rotary evaporator utilizes stepless speed regulation to rotate a glass flask at a constant speed, forming a large-area, balanced thin film of material on the inner wall. A smart thermostat-controlled water bath heats the rotating flask, driving high-speed evaporation under vacuum conditions. Solvent vapor is then cooled by a high-efficiency glass condenser and recovered into a receiving flask, ensuring maximum solvent recovery efficiency while preserving sample integrity.
Key Features of the New Model
Superior Chemical Resistance: All product-contact components are fabricated from premium borosilicate glass 3.3 and PTFE, providing outstanding durability against corrosive substances and ensuring long service life in demanding laboratory environments.
Precision Motor System: A specialized, ultra-compact motor with intermeshed worm and worm gear transmission delivers exceptionally quiet, vibration-free operation, making it ideal for stability-sensitive laboratory workflows.
Safe Vacuum Architecture: The innovative downward-condensing vacuum connection design enhances operational safety and minimizes the risk of vacuum leaks or cross-contamination during extended use.
Modular Construction: Independently designed rotary and water bath modules simplify routine maintenance and enable straightforward future upgrades, maximizing equipment longevity and adaptability.
Convenient Auto-Lift Mechanism: The evaporating flask features an intuitive auto-lift function with a secure mechanical lock, allowing safe and effortless height adjustment without compromising vacuum integrity.
Digital Control Interface: A clear digital display provides real-time speed and temperature readings, ensuring simple, visual operation for laboratory personnel of all experience levels.
PID Precision Temperature Control: An integrated PID controller maintains highly accurate and stable temperature regulation, essential for temperature-sensitive pharmaceutical and biochemical processes.
One-Way Check Valve: The built-in check valve automatically seals during receiving flask drainage, preventing internal pressure fluctuations and supporting uninterrupted continuous operation.
Packaging and Global Shipping
To ensure safe international delivery, all glass components are individually wrapped with protective foam and packed in reinforced cartons, while the main body is secured in industrial-grade wooden cases. Both neutral and customized packaging configurations are available to accommodate diverse customer requirements. The company offers flexible shipping options through major international carriers including DHL, UPS, TNT, and EMS, allowing customers to select the most suitable method based on their delivery timeline and budget. Customers may also arrange shipment via their preferred freight forwarders.
Availability and Inquiries
The Chemical Lab Vacuum Rotary Evaporator series is available for immediate order. For pricing, technical specifications, or to request a quotation, interested laboratories and distributors are encouraged to contact Nantong Sanjing Chemglass directly through their official website or sales representatives.
About Nantong Sanjing Chemglass
Key Information
Details
Headquarters
Nantong, Jiangsu Province, China
Specialization
Chemical glass equipment and laboratory instrumentation
Core Products
Glass reactors, rotary evaporators, condensers, circulators, stirrers, vacuum pumps, lab consumables
Industries Served
Pharmaceuticals, chemicals, biopharmacy, new materials, noble metals
Services
Design, manufacturing, equipment selection, installation, commissioning, maintenance
View More
Selection Guide & ROI Analysis – Choosing the Right Borosilicate Glass Reactor for Your Lab or Pilot Plant
2026-05-12
Selection Guide & ROI Analysis – Choosing the Right Borosilicate Glass Reactor for Your Lab or Pilot Plant
Title: Glass Reactor Selection Guide: How to Choose Between 3L, 10L, 50L, and 200L NTSJ PGR Series for Maximum ROI
Meta Description: Selecting the wrong glass reactor costs time and money. Compare NTSJ PGR series models from 3L to 200L. Learn which double jacketed borosilicate reactor fits your application, budget, and scale-up roadmap.
Investing in a glass reactor is a strategic decision. Choose too small, and you cannot scale your process. Choose too large, and you waste materials, energy, and bench space. Nantong Sanjing Chemglass (NTSJ) offers the PGR series of double jacketed borosilicate glass reactors in seven standard sizes from 3 liters to 200 liters. But which model is right for your specific application? This article provides a systematic selection guide, comparing specifications, use cases, and return-on-investment considerations for each major model, with special focus on the popular FPGR-10 (10L) and its larger siblings.
The Core Question: R&D, Pilot, or Production?
Before reviewing specifications, define your operational stage:
Stage
Typical Volume
Recommended NTSJ Model
Key Priority
Academic / Method Development
1-5L
PGR-3 or PGR-5
Low cost, small footprint
Process Optimization
5-20L
PGR-5, FPGR-10
Reproducibility, instrumentation ports
Kilo-Scale / Pilot
20-50L
PGR-30, PGR-50
Scale-up accuracy, vacuum integrity
Small Production
50-200L
PGR-50, PGR-100, PGR-200
Throughput, durability, automation
Model-by-Model Comparison
1. PGR-3 (3 Liters) – The Entry Point
Dimensions: 320×350×900 mm – fits on standard benchtop.
Motor: 40W, 50-1400 rpm (widest speed range in series).
Neck Count: 4 – sufficient for basic reflux, addition, and sampling.
Torque: 0.27 Nm – suitable for low-viscosity fluids.
Best For: Undergraduate teaching labs, initial route scouting, expensive catalysts (small volumes minimize cost per experiment).
Limitation: Only 4 necks limits simultaneous additions; lower torque unsuitable for viscous polymers.
2. PGR-5 (5 Liters) – The Teaching Lab Standard
Dimensions: 450×450×1200 mm.
Motor: 60W, 50-600 rpm.
Torque: 0.95 Nm – nearly 3.5× the PGR-3.
Best For: Industrial R&D groups, contract labs, essential oil distillation.
Upgrade from PGR-3: More robust stirring, 5 necks allow additional monitoring probes.
3. FPGR-10 (10 Liters) – The Sweet Spot (Most Popular)
Dimensions: 650×650×1900 mm – requires dedicated floor space or cart.
Motor: 140W, 50-600 rpm – same motor as 30L and 50L models.
Torque: 2.23 Nm – capable of moderate viscosities.
Neck Count: 6 – full instrumentation (stirrer, condenser, addition funnel, thermometer, gas inlet, sampling).
Best For: New material synthesis, pharmaceutical intermediates, pilot studies before 50L scale-up.
ROI Advantage: Shares motor and torque with larger units, meaning process parameters (speed, power draw) scale predictably to 30L and 50L.
4. PGR-30 (30 Liters) – The Pilot Plant Workhorse
Dimensions: 700×500×2100 mm.
Inner vessel diameter: 330 mm vs. FPGR-10's 230 mm – much larger surface area.
Vessel height: 730 mm – deeper immersion for coils.
Best For: Kilo-to multi-kilo batch production, contract manufacturing.
Consideration: Requires 220V power and substantial ceiling height.
5. PGR-50 (50 Liters) – The Production Starter
Dimensions: 800×600×2300 mm.
Torque still 2.23 Nm – adequate for low-to-medium viscosity at this scale.
Best For: Small-batch specialty chemicals, cosmetic emulsions, food extracts.
Note: At 50L, glass weight becomes significant; ensure floor loading capacity.
6. PGR-100 (100 Liters) – Industrial Scale
Motor: 250W, torque increased to 3.98 Nm.
Cover diameter: 340 mm – large opening for cleaning and solid charging.
Best For: Commercial production of high-value pharmaceuticals, fine chemicals.
7. PGR-200 (200 Liters) – Maximum Glass Reactor
Dimensions: 1200×900×3200 mm – requires forklift for installation.
Motor: 750W, torque 6.37 Nm – nearly triple the 50L model.
Best For: Full-scale manufacturing where stainless steel is unsuitable (acidic media, visual monitoring required).
Limitation: Maximum vacuum remains 0.098 MPa – identical to 3L model, demonstrating excellent seal design consistency across the range.
Matching Reactor to Application
Application: New Material Synthesis (Nanoparticles, MOFs, Battery Materials)
Recommended: FPGR-10 or PGR-30
Reason: Requires 6 necks for full instrumentation; visual monitoring critical; moderate torque sufficient.
Application: Strong Acid Reactions (HCl, H2SO4, Aqua Regia)
Recommended: Any PGR model (all use borosilicate glass + PTFE)
Reason: Only glass and PTFE contact media – no metal corrosion.
Application: High-Viscosity Polymers (＞10,000 cP)
Recommended: PGR-5 (small scale) or PGR-100/PGR-200 (large scale)
Reason: Lower viscosity limits at mid-range. For 10L scale with high viscosity, consider custom anchor stirrer.
Application: Solvent Recovery Under Vacuum
Recommended: Any model – all achieve 0.098 MPa
Reason: Mechanical sealing maintains vacuum even at speed.
ROI Considerations Beyond Purchase Price
Factor 1: Scale-Up PredictabilityThe FPGR-10, PGR-30, and PGR-50 share identical 140W motor and 2.23 Nm torque. This means tip speed and power-per-volume scale linearly – a significant advantage for process transfer.
Factor 2: Cleaning DowntimeThe separated kettle cover and body design applies to all models. Disassembly time is comparable whether cleaning a 3L or 200L unit – a major labor savings at production scale.
Factor 3: Transit Damage ProtectionNTSJ's policy – seller bears transport damage – applies equally to all models. For a 200L reactor, replacement glass could cost thousands. This policy eliminates that risk.
Factor 4: Modular Heating/CoolingAll PGR models work with the same circulating water/oil baths and chillers. Your investment in thermal control equipment remains valuable as you scale up.
Practical Recommendation Matrix
If your batch size is…
And your viscosity is…
Then choose…
25 liters
Low to Medium
PGR-100 or PGR-200
Final Recommendation: Start Smart, Scale Confidently
For most laboratories and pilot plants, the FPGR-10 (10L) offers the optimal balance: the same 6-neck configuration and motor specification as production-scale 30L and 50L units, but in a manageable 650×650×1900 mm footprint. Begin your process development on the FPGR-10, validate your scale-up parameters, then transfer directly to PGR-30 or PGR-50 without re-engineering your mixing or heating profile.
For academic or budget-constrained labs, the PGR-5 provides exceptional value with 5 necks and 0.95 Nm torque – sufficient for 80% of standard organic synthesis tasks.
For commercial production requiring maximum throughput, the PGR-200 delivers 200L working volume with 750W of spark-free, frequency-controlled power, backed by the same mechanical sealing and vacuum integrity as the smallest PGR-3.
Contact NTSJ today for a consultation. Their engineering team can recommend the correct model based on your specific reaction chemistry, available utilities, and scale-up timeline – and they will customize neck configurations, frame materials, and drive systems to match your exact requirements. With ISO9001 certification, CE marking, and a seller-borne transit damage policy, your glass reactor investment is protected from delivery through decades of reliable service.
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