Parr Instruments 4561 300 ML Stainless Steel High Pressure Chemical Reactor with 4848 Controller

Used Parr 4561 | 300 mL T316 Stainless Steel High-Pressure Reactor

Product: Parr Instruments Model 4561 Jacketed Chemical Reactor (Used)

Series: Parr 4560 Series Mini Bench Top

Volume: 300 mL

Max Ratings: 2000 PSI @ 225°C (with FKM seals)

Included Controller: Parr 4848 Reactor Controller System

Overview

Accelerate your high-pressure catalytic research and process development without the burden of long OEM lead times. The pre-owned Parr Instruments Model 4561 is a compact, high-performance 300 mL stainless steel chemical reactor designed for demanding reactions requiring precise control over pressure, temperature, and multi-phase stirring.

Manufactured by the industry-leading Parr Instrument Company, this system features robust T316 stainless steel wetted parts and an external heating/cooling jacket for hyper-precise thermal management. Fully integrated with the included Parr 4848 Controller, this used reactor system provides research laboratories, pilot studies, and small-scale process developers with proven Parr reliability at a highly cost-effective price point.

Condition & Unit Details

• Condition: Used — Fully inspected high-pressure stirred reactor system in excellent working condition.

• Inspection: Vessel integrity, split-ring closure system, magnetic stirring drive, and controller functionality have been evaluated by HiTechTrader technicians for safe, reliable operation.

• Included Components: Parr 4561 Jacketed Vessel, Magnetic Stirrer Assembly, and Parr 4848 Controller.

• Warranty: Backed by HiTechTrader's standard 30-day limited warranty.

• Seller Track Record: Operating from Coatesville, Pennsylvania, HiTechTrader has outfitted laboratories worldwide since 1982.

Technical Specifications

Core System Advantages

External Jacket Temperature Control

Unlike standard electrically heated mantles, this Parr 4561 configuration includes an external jacket. This allows users to control the reactor's internal temperature via an external bath circulator. This design provides exceptionally stable heating and rapid cooling, making it indispensable for temperature-sensitive reactions and exothermic process control.

T316 Stainless Steel Construction

All wetted parts are machined from T316 Stainless Steel, providing superior resistance against oxidizing agents, acids, solvents, and elevated temperatures. This metallurgy ensures excellent mechanical strength, prevents contamination from reactive vessel walls, and guarantees a long service life in aggressive chemical environments.

Efficient Magnetic Stirring

Equipped with dual 4-blade impellers powered by a 1/8 HP variable-speed magnetic stirrer, the 4561 provides uniform, leak-free agitation. Efficient stirring maximizes gas-liquid contact, suspends solid catalysts, and eliminates thermal gradients, ensuring your experimental data is consistent and reproducible.

Parr 4848 Controller Included

This system includes the Parr 4848 Controller, delivering an integrated command center for your reaction. It provides precise digital temperature monitoring, automated process control, and adjustable stirring speeds, significantly improving operational safety and experimental repeatability.

Typical Applications

With its compact 300 mL footprint and 2000 PSI capability, the Parr 4561 is the ideal "bridge scale" reactor for both academic research and industrial R&D:

• Catalytic Reaction Studies: Testing and screening heterogeneous catalysts.

• High-Pressure Synthesis: Safe handling of aggressive or oxidizing reagents.

• Pharmaceutical Process Development: API synthesis and fine chemical research.

• Materials Science: Hydrothermal testing and advanced materials development.

Nationwide Shipping & GEO Availability

Avoid the 12–20 week OEM manufacturing delays that can stall your critical research. Operating out of our primary facility in Coatesville, Pennsylvania, HiTechTrader provides rapid, secure freight shipping to research institutions, biotech incubators, and industrial facilities nationwide.

Whether your lab is located locally on the East Coast, in the Gulf Coast petrochemical corridor, or in a West Coast innovation hub, we ensure your precision laboratory pressure equipment is carefully crated and arrives ready for immediate deployment.

Buy the Used Parr 4561 Reactor

HiTechTrader offers the used Parr Instruments 4561 300 mL Stainless Steel High Pressure Chemical Reactor with 4848 Controller for laboratories requiring uncompromising performance on a budget.

Contact HiTechTrader today to:

• Request pricing and confirm current inventory availability.

• Discuss compatibility with your laboratory’s external bath circulators.

• Arrange expedited freight shipping to minimize downtime.

• Learn more about financing and purchase options.

HiTechTrader | Coatesville, Pennsylvania | Est. 1982

Trusted partner for new and pre-owned scientific, laboratory, and industrial process equipment.

FAQs

What is a high-pressure stirred chemical reactor?

A high-pressure stirred chemical reactor is a sealed laboratory vessel designed to safely perform chemical reactions under precisely controlled elevated pressure, temperature, and agitation. Stainless steel reactors, such as the Parr 4561, are commonly used in catalytic chemistry, pharmaceutical research, synthesis reactions, and materials development because they provide exceptional corrosion resistance, uniform multi-phase mixing, and the safe containment of reactive and volatile materials.