Magnetic Stirrers / Magnetic Mixers / Magnetic Agitators

Introduction

Application

Benefits

Design & Mfg.

Brochures

"Designed and Constructed
for Heavy Duty Continous 
Operation, High Reliability 
and Low Maintenance"

PUMA Drives Provide Engineered Solutions To Meet Your Mixing Needs

PDC Machines proudly introduces its PUMA Drive line of magnetically driven agitator systems. By using a single static seal instead of a dynamic or mechanical seal between the drive and the vessel, PUMA Drives have set the standard for environmental safety. Our technology assures leak-free, contamination-free and emissions-free mixing at high pressures and temperatures. It also protects the health of your personnel and the environment and ensures the integrity of your product. PUMA Drives are an ideal choice when working with toxic, hazardous, highly corrosive or high-purity materials.

The operating concept for the PUMA Drive is surprisingly simple yet thoroughly effective. Drawing on proprietary technology, PDC utilizes a magnetic coupling between an outer magnet assembly - driven by a motor - and an inner magnet assembly, separated by the PUMA Drive tube. When the outer magnet assembly rotates the torque is magnetically transferred through the stationary drive tube to the inner magnets attached to the drive shaft.

Belt Drive vs. Direct Drive

PUMA Drive's are quick and easy to maintain resulting in less down time and low operating costs. Within minutes, the PUMA Drive can be disassembled, for cleaning the drive tube and inner shaft or replacing the bearings, then reassembled without ever needing to touch the V-belt drive assembly. In contrast it is cumbersome and time consuming to perform the same service on a direct drive magnetic 

.

Compatibility to meet your processing needs:

PDC PUMA Drives can be manufactured from most machinable alloys to ensure compatibility with the intended process media. These include:

Metals

• 300 series SS, Hastelloy^®, Monel^®, Inconel^®, titanium, and many more machinable alloys for use in corrosive processes. Non-metallic coatings are available.

Static seal types

• All types of elastomeric o-rings
• Spiral wound gaskets from acceptable alloys and fillers
• Lens rings from high temperature applications

Bearing materials

• Carbon graphite
• Various grades of Rulon^®
• Non-lubricated, anti-friction ball bearings for special applications

PUMA Drives offer an extensive selection of custom-designed impellers to meet your mixing needs.

These impellers are suitable when blending low to medium viscous materials at high speeds to achieve solid suspension or dispersion. They are also suitable for generating the transfer for generating the transfer of heat between the process and reactor wall. Propellers are availble in multiblade configurations. 

Turbines are a good, general purpose Impeller choice. Availble with straight, pitched or retreat blades, they are ideal for processes with low viscosity and systended solids. When heat transfer withe the vessel wall is required with consistent performance from low to high speeds, the turbine is a fine choice.

Anchor-type impellers provide the most economical mixing of highly viscous materials at low speeds. Anchors require less horsepower thanhelical ribbons do for agitation, and the upright length can vary as required. Teflon wipers can be mounted on the anchor to provide complete tank mixing.

Exceptional Value

PDC Machines has refined the PUMA Drive magnetic mixer to the highest level of technical achievement and quality of construction. This results in a mixer requiring infrequent service, is simple to operate and maintain, and will provide many years of reliable low-cost operation. The advantages of the PUMA Drive magnetic mixer include:

• Straight-Through Bore Drive Tube:
  • All three bearings are identical, eliminating the need for multiple spare parts
  • Perfect bearing alignment extends bearing life and intervals between maintenance
  • Minimal vibration allows high-speed operation to 5000 RPM (on designated units)
  • Straight-through bore makes cleaning simple and easy
• Air-cooled drive tube isolates the heat of the vessel and removes the heat generated by the eddy currents of the magnets to retain the torque rating of the drive during operation
• V-Belt Drive uses no rotary or mechanical seals, never needs lubrication, is simple to maintain
• Proprietary speed sensor technology directly and accurately measures the drive shaft rotation and detects the event of a magnetic coupling failure
• Fixed or Variable Speed Drives uses AC or DC motors for any electric service, or air-driven motors

Electrical Codes and Standards

• Compliance with NEC or IEC regulations for any hazardous area environment

Customized Controls

• Speed-control panels with digital speed display and programmable VFD with input and output control communications with customer's DCS
• PDC systems engineer can provide system solutions from simple to complex integration issues

Installation and Mounting

• Special Adapter flanges and brackets to mate with any tank, vessel, or mounting configuration

Applications

For many years PUMA magnetic mixers or magnetic stirrers have been used in laboratories, pilot plants and small-scale production facilities for batch and continuously stirred vessel (CSTR) operation. PUMA magnetic drive mixing systems are ideal for:

• Liquids

• Solvents

• Lacquers

• Oils

• Synthetic Materials

• Specialty Chemicals

• Biotech

• Food Products

• Polymers

• Blends

• Fuels

• Slurries

• Starches

• Pulp and Paper

• Particle Synthesis

• Catalyst Preparation

• Multiphase Catalytic Reactions

Specially designed Impellers and Accessories

Pdc can design and manufacture special impellers to meet your specific requirements. Gas dispersion, folding impellers, hydro-foils, augers and others can be custom-designed. When vortex formation within a process becomes an issue, Pdc will provide retrofitted baffles designed specifically for the existing reactor. Contact a Pdc sales engineer to discuss you specific requirements.
             

"With our technical design expertise, manufacturing capabilities, and dedication to working with our customers, Pdc is a valuable partner that can provide engineered solution to satisfy your mixing needs."

With PUMA Drives, the Options are Endless....

We work hand in hand with our customers to provide the optimal mounting solution. PUMA Drives come with standard, threaded vessel connection that must be machined into an existing vessel. Pdc will custom manufacture alternative mounting solutions to accommodate specific customer requirements.

These Include, but are not bound by:

ANSI flanged mounting arrangements

Custom flanged or threaded arrangements to adapt to existing openings or nozzle styles.

Sanitary connections.

Experience, Reliability & Service

Pdc is committed to continous product improvement and the development of innovative designs and manufacturing processes to maximize the performance and value of PUMA Drives.

Utilizing a powerful combination of engineering expertise and a state-of-the-art manufacturing facility, Pdc designs and machines components precisely and economically. Critical components are manufactured and verified to exacting tolerances utilizing computer numerical controlled(CNC) machining and coordinate measurement(CMM) quality control.

After assembly, every PUMA Drive is subjected to rigorous In-house testing and is made available for customer inspection. Each unit includes an Operation and Maintenance Manual with drawings and component details. Pdc stocks critical spare parts for quick shipment and offers the most responsive technical and field support in the industry.

Representative: "AMARICAR ENGINEERING & SYSTEMS" 
No.61,Montieth lane,
Egmore, chennai-600008,India
Phone : + 91- 44- 28554689/28554230
Fax : + 91-44-52043674
E-mail : amaricar@eth.net

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