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

Parr 4560 Series System with 4842 Controller & A850HC Stand (3000 PSI @ 350°C)

Secure premium high-pressure reaction capabilities with exacting technical transparency. The pre-owned Parr Instruments 4561 is a 300 mL stainless steel high-pressure chemical reactor designed for demanding laboratory research, catalyst testing, and small-scale process development.

This specific configuration is built around a highly durable T316 Stainless Steel vessel (manufactured in 2016) with a premium Maximum Allowable Working Pressure (MAWP) of 3000 PSI at 350°C. Fully supported by the A850HC Stand and managed by the Parr 4842 Controller, this system provides the robust pressure containment and thermal control expected from Parr, at a highly cost-effective price point. Sourced and verified by HiTechTrader; your partner for scientific equipment since 1982—this reactor is ready for immediate deployment.

Condition & Unit Details

• Condition: Used — Fully inspected, powered on, and evaluated by HiTechTrader technicians for mechanical and electrical integrity.

• Wetted Material: T316 Stainless Steel (Head and Vessel) for superior corrosion resistance against acids, solvents, and oxidizing agents.

• Vessel Rating: Marked for 3000 PSI @ 350°C (Manufactured in 2016).

• Important Technical Note — No RPM Sensor: This specific unit does not include an RPM sensor. While stirring speed can still be adjusted, there is no digital RPM feedback. Buyers should confirm if exact RPM data logging is required for their specific validated workflows.

• Warranty: Backed by our standard 30-day limited warranty.

• Seller Track Record: Operating from Coatesville, Pennsylvania, we provide secure, crated shipping to laboratories nationwide.

Technical Specifications

Core System Advantages

3000 PSI High-Pressure Capability (2016 Vessel)

The reactor vessel (452HC) is explicitly marked with an MAWP of 3000 psi at 350°C. This expanded pressure envelope supports demanding advanced synthesis and catalytic reactions where safe containment and stable operation at extreme parameters are absolutely critical.

T316 Stainless Steel Construction

Both the 818HC reactor head and 452HC vessel are crafted from T316 Stainless Steel. This premium metallurgy provides strong resistance to many acids, solvents, and oxidizing agents, ensuring a long service life in aggressive research and pilot plant environments.

Parr 4842 Controller & A850HC Stand

The system is securely mounted on the A850HC bench-top stand for stable laboratory operation. The included Parr 4842 Controller (115V, 12 Amp) provides reliable reactor temperature control and safe process monitoring, ensuring consistent experimental repeatability.

The 300 mL "Bridge Scale"

The 300 mL capacity provides a practical balance between conserving valuable reagents and providing enough working volume for meaningful, scalable laboratory reaction studies.

Typical Applications

The Parr 4561 is the standard for laboratories requiring controlled reaction conditions in a compact format. Common uses include:

• Catalyst Testing & Screening: Evaluating heterogeneous catalysts under high pressure.

• High-Pressure Chemical Synthesis: Safe handling of aggressive chemistry.

• Materials Science & Polymerization: Precise temperature control for kinetic and stability studies.

• Pharmaceutical Process Development: Small-scale API pilot process work.

Nationwide Shipping & Availability

Avoid long OEM manufacturing delays that can stall critical R&D projects. Operating out of our primary facility in Coatesville, Pennsylvania, HiTechTrader provides rapid, secure freight shipping to research institutions, biotech hubs, and industrial facilities across the United States and globally.

Whether you are located in the Northeast corridor, the Texas Petrochemical region, or a West Coast technology hub, we ensure your Parr reactor is professionally crated and arrives safely, ready for immediate installation.

Frequently Asked Questions (FAQ)

Does the lack of an RPM sensor affect the stirring function?

No. The magnetic stirrer will still function and the speed can be adjusted manually via the 4842 Controller. The absence of the sensor simply means you will not get a digital readout of the exact RPM speed for your records.

What is the benefit of a T316 Stainless Steel Vessel?

T316 stainless steel contains molybdenum, which gives it superior resistance to pitting and crevice corrosion compared to standard 304 stainless steel. It is the preferred material for high-pressure chemical environments.

Is this system ready for benchtop use?

Yes, the inclusion of the A850HC stand ensures the heavy stainless steel vessel and head are securely mounted and easily accessible for standard laboratory benchtop workflows.

What is a high-pressure stainless steel chemical reactor?

A high-pressure stainless steel chemical reactor is a sealed laboratory vessel designed to safely perform chemical reactions under precisely controlled pressure and temperature conditions. Compact stirred reactors, such as the Parr 4561 (300 mL), are commonly used in catalyst testing, chemical synthesis, and pharmaceutical research because they provide extreme pressure containment (up to 3000 PSI), chemical resistance via T316 metallurgy, and repeatable laboratory-scale process control.

Buy the Used Parr 4561 Reactor

HiTechTrader offers this used Parr Instruments 4561 300 mL Stainless Steel High Pressure Chemical Reactor for laboratories requiring reliable high-pressure reaction equipment at a cost-effective price point.

Contact HiTechTrader today to:

• Confirm availability and request formal pricing.

• Discuss whether the absence of the RPM sensor impacts your specific process requirements.

• Arrange expedited freight shipping to your facility.

HiTechTrader | Coatesville, Pennsylvania | Est. 1982

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