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.
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 |
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.
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.
Factor 1: Scale-Up Predictability
The 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 Downtime
The 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 Protection
NTSJ'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/Cooling
All PGR models work with the same circulating water/oil baths and chillers. Your investment in thermal control equipment remains valuable as you scale up.
| If your batch size is… | And your viscosity is… | Then choose… |
|---|---|---|
| <2 liters | Low | PGR-3 |
| 2-4 liters | Medium | PGR-5 |
| 4-8 liters | Low to Medium | FPGR-10 |
| 4-8 liters | High | Two PGR-5 units (parallel) |
| 8-25 liters | Low | PGR-30 |
| 8-25 liters | Medium | PGR-50 (larger diameter improves mixing) |
| >25 liters | Low to Medium | PGR-100 or PGR-200 |
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.
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.
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 |
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.
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.
Factor 1: Scale-Up Predictability
The 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 Downtime
The 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 Protection
NTSJ'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/Cooling
All PGR models work with the same circulating water/oil baths and chillers. Your investment in thermal control equipment remains valuable as you scale up.
| If your batch size is… | And your viscosity is… | Then choose… |
|---|---|---|
| <2 liters | Low | PGR-3 |
| 2-4 liters | Medium | PGR-5 |
| 4-8 liters | Low to Medium | FPGR-10 |
| 4-8 liters | High | Two PGR-5 units (parallel) |
| 8-25 liters | Low | PGR-30 |
| 8-25 liters | Medium | PGR-50 (larger diameter improves mixing) |
| >25 liters | Low to Medium | PGR-100 or PGR-200 |
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.
