Industrial Mixing and Agitation Equipment GREC

Selection and sourcing of GREC industrial fluid mixing systems, heavy reduction gearboxes, agitators, and cartridge mechanical shaft seals.

Vertical Agitators with Worm Gearbox AVF

Vertical mixing units of the AVF series feature a worm reduction gearbox tailored for small and medium process vessels. The drive delivers steady low-speed agitation for liquid reagents, chemical solutions, and industrial suspensions across process treatment plants.

Worm gear reduction ensures quiet torque transmission to the mixing shaft
Connection flange sizes ranging from DN50 to DN150 fit standard tank nozzles
Stainless steel shafting delivers chemical endurance in aggressive mixtures
Permissible bending moment rating reaches three hundred newton meters continuously

Vertical Agitators with Helical Bevel Gearbox AVC

Industrial vertical mixers of the AVC series utilize a rigid helical-bevel gear reducer engineered for heavy fluid processes. These agitator drives handle demanding mixing duties with high torque absorption inside chemical reactors and neutralization tanks.

Helical-bevel gearing withstands operational torque ratings up to 3000 Nm
Reinforced bearing lantern absorbs axial dynamic loads up to 8000 newtons
Direct mounting compatibility with standard flanged electric motors IEC80-IEC160
Precision machined gear teeth deliver high mechanical power efficiency

Parallel Shaft Agitator Drive Units AVL

Vertical agitators of the AVL series incorporate parallel-shaft helical reduction gearboxes for heavy-duty industrial tasks. The robust drive assembly provides stable rotational speed control for extended mixing shafts in deep bioreactors and aeration basins.

Parallel shaft helical gearing manages high radial reaction overloads easily
Heavy tank mounting flanges from DN150 to DN400 match industrial vessel nozzles
Extended bearing span design stabilizes long overhung mixing shaft profiles
Synthetic lubrication filling extends scheduled maintenance service intervals

Side Entry Storage Tank Agitators ALF

Side-entry mixers of the ALF series feature a worm reduction gearbox engineered for horizontal mounting on tanks up to seventeen meters high. The mechanical layout permits shaft seal inspection and servicing without draining product inventory from the vessel.

Seal servicing without draining liquid stored inventory from the process vessel
Compact worm reduction mechanism minimizes external overhang footprint
Sanitary wetted component finishing utilizing polished AISI 316 stainless steel
Optimized angular shaft alignment prevents liquid settling and solids buildup

High Capacity Side Entry Mixers ALC

High-power side agitators of the ALC series incorporate a bevel gearbox for continuous liquid blending inside large diameter bulk storage tanks. The unit generates a strong jet plume to eliminate heavy bottom sludge accumulation in industrial storage terminals.

Bevel gear transmission delivers powerful torque for vigorous liquid turnover
Heavy-duty solid shafts endure intense hydrodynamic bending forces easily
Single and double cartridge seal modules support pressurized fluid storage
Hydrodynamically profiled marine prop impellers generate powerful axial flow

Cartridge Mechanical Agitator Shaft Seals

GREC cartridge mechanical seals ensure total hermetic sealing at the shaft penetration port of chemical reactors and pressure vessels. The pre-assembled module simplifies alignment and accelerates seal ring replacement during routine turnaround servicing.

Pre-assembled cartridge build prevents face misalignment during plant installation
Silicon carbide and tungsten carbide friction faces resist abrasive slurries
Fluoropolymer and elastomeric seals EPDM, FKM, FFKM suit chemical media
Compatible with external barrier fluid thermosiphon vessels and flush systems

Kinematics and Dynamics of AVF Worm Gear Vertical Mixers

GREC AVF series vertical agitators are engineered for fluid processes where stable rotational velocity and low operating noise levels are crucial.

The drive assembly relies on a precision-ground worm reduction gear mechanism that delivers smooth, vibration-free torque transmission to the mixing shaft. The heavy steel lantern bracket absorbs radial hydrodynamic bending loads, shielding the internal reducer gears from excessive strain.

Wetted components and impellers are fabricated from austenitic stainless steel alloys to resist corrosive chemical solutions, reagent slurries, and flocculation compounds in industrial wastewater treatment facilities.

Helical Bevel AVC Drives for High Viscosity Reactor Vessels

Heavy-duty AVC series mixing units are engineered for demanding industrial processes requiring vigorous agitation against viscous resistance. The orthogonal helical-bevel gear geometry delivers substantial output torque while keeping vertical equipment height compact above the vessel top nozzle.

A rigid intermediate lantern housing incorporates heavy-duty tapered roller bearings capable of managing high dynamic axial thrust loads generated by wide-diameter impellers.

Industry-standard IEC electric motor interfaces allow flexible coupling with explosion-proof or severe-duty electric drive motors.

Parallel Shaft Reducers in Heavy Duty AVL Agitator Units

AVL series vertical mixers equipped with parallel-shaft helical reduction gearboxes operate reliably in deep reaction tanks where long overhung shafting is required.

An extended center-to-center bearing distance within the lantern structure prevents dynamic lateral deflection and resonance vibrations along the mixing shaft.

Precision tooth grinding and comprehensive thermal hardening of helical gears ensure high mechanical transmission efficiency and reduced thermal buildup during continuous round-the-clock operations. Durable dual lip seals retain synthetic gear lubricant over extended operating cycles.

Tank Full Seal Replacement Technology on ALF Side Mixers

ALF series side-entry agitators are designed for horizontal flange mounting through sidewalls of storage vessels up to seventeen meters in height. The ALF-E model features an emergency mechanical shutoff mechanism built directly into the mounting flange.

During periodic inspection or turnaround servicing of the main mechanical seal, technicians shift the shaft into a forward maintenance position to isolate the tank liquid port.

This feature enables maintenance personnel to service wear rings and elastomeric gaskets without having to pump out hundreds of tons of liquid inventory.

Fluid Circulation in Large Diameter Bulk Tanks with ALC Mixers

High-power side-entry agitators of the ALC series prevent bottom sludge accumulation, wax deposition, and phase separation in large industrial storage vessels.

Positioning the unit at a precise angular offset relative to the tank centerline induces full-volume rotational blending throughout the liquid inventory.

The hydrodynamically profiled marine-style three-blade propeller produces a powerful axial jet stream, entraining surrounding fluid layers with minimal electrical power draw. Dynamic balancing of the impeller minimizes cavitation stresses on structural mounting nozzles.

Design and Maintenance of Cartridge Mechanical Shaft Seals

GREC cartridge mechanical seals provide an integrated, factory-tested pressure boundary assembly ready for rapid installation onto the mixer nozzle. Premium silicon carbide and tungsten carbide seal faces maintain exceptional wear resistance and low frictional heat generation in abrasive slurries.

For volatile or hazardous chemical environments, double pressurized cartridge seals utilize a dedicated thermosiphon reservoir to circulate barrier fluid across the sealing interface.

Sustained barrier pressure prevents process vapors from escaping into the facility, ensuring workplace environmental protection.

Grec and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of Grec and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.