Rotary Gear Pump

The Ajay Engineering Rotary Gear Pump is a positive displacement pump designed to deliver a steady, non-pulsating flow of liquid at uniform pressure.

It consists of two precisely machined gears a driver gear and an idler gear that rotate inside a close-fitting casing, creating suction and discharge action. This design allows efficient handling of thick, sticky, or viscous fluids while maintaining smooth flow and high volumetric efficiency.

Our rotary gear pumps are available in various models and materials, including Cast Iron, SS304, SS316, and Alloy 20, suitable for different process needs. Optional heating jackets ensure smooth operation when handling fluids that thicken at lower temperatures.

Key Features & Benefits

• Positive Displacement Design: Ensures uniform flow and accurate dosing regardless of pressure or viscosity.
• Handles Viscous Liquids Easily: Perfect for molasses, syrups, oils, and chemical transfer.
• Compact & Rugged Construction: Designed for continuous-duty industrial operation.
• Self-Priming Capability: Can handle suction lift applications without external priming.
• Corrosion & Wear Resistance: Made from high-grade Cast Iron, Stainless Steel, or special alloys.
• Heating Jacket Option: Maintains temperature for viscous or semi-solid fluids like molasses and bitumen.
• Leak-Proof Operation: Equipped with precision mechanical seals or gland packing.
• Smooth, Silent Running: Perfect gear alignment minimizes vibration and noise.
• Low Maintenance: Simple internal design allows easy inspection, servicing, and part replacement.
• Energy Efficient: High mechanical efficiency and low power consumption.

Applications

Ajay Engineering Rotary Gear Pumps are suitable for a wide range of industrial applications, including:

• Sugar & Distillery Plants: Pumping molasses, syrup, and viscous liquids.
• Oil & Lubrication Systems: Transfer of lubricating oils, furnace oils, diesel, and hydraulic fluids.
• Chemical & Petrochemical Plants: Handling viscous chemicals, resins, and solvents.
• Food & Beverage Industry: For syrups, glucose, chocolate, and edible oils.
• Paint & Varnish Units: Circulation of paints, varnishes, adhesives, and pastes.
• Bitumen & Asphalt Plants: Heating and transferring bitumen and heavy oils.
• Pharmaceutical & Cosmetic Plants: Handling viscous creams and liquids. 

Technical Specifications

Parameter	Specification
Pump Type	Rotary External / Internal Gear Pump (Positive Displacement)
Flow Rate	0.5 LPM - 1200 LPM (Custom up to 100 m3/hr)
Discharge Pressure / Head	Up to 20 bar (approx. 200 meters)
Viscosity Range	Up to 1,000,000 cP
Temperature Range	Up to 180 deg C (with heating jacket)
Material of Construction (MOC)	Cast Iron, SS304, SS316, Alloy 20, SG Iron
Seal Type	Mechanical Seal / Gland Packing
Bearing Type	Heavy-Duty Roller Bearings
Drive Type	Electric Motor / Gearbox / Belt Drive / Coupled
Mounting Type	Horizontal Foot Mounted / Base Frame Mounted
Direction of Rotation	Clockwise / Counterclockwise
Heating Option	Steam / Hot Oil Jacket Available
Testing	Hydrostatic & Performance Tested Before Dispatch

Why Choose Ajay Engineering

• Industry Pioneer: Ajay Engineering has decades of experience in manufacturing high-performance rotary gear pumps for demanding industries.
• Precision Engineering: State-of-the-art machining and assembly ensure superior performance and reliability.
• Customized Solutions: Pumps tailored for viscosity, temperature, and discharge needs.
• In-House Manufacturing: Complete quality control from casting to testing.
• After-Sales Service: Dedicated technical support, spares, and service backup.
• Stringent Quality Testing: Every pump undergoes hydrostatic, performance, and leak testing before dispatch.
• Trusted by Leading Industries: Installed in sugar mills, refineries, and chemical plants across India.

 

Ajay Engineering Setting Benchmarks in Rotary Gear Pump Design, Quality, and Performance.

 

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Frequently Asked Questions (FAQs)

Q1. What is a Rotary Gear Pump?

A rotary gear pump is a positive displacement pump that uses rotating gears to move fluid with consistent flow and pressure.

Q2. Why choose Ajay Engineering Rotary Gear Pumps?

Ajay Engineering is a pioneer manufacturer offering durable, efficient, and maintenance-free gear pumps built to handle even the toughest fluids.

Q3. Can these pumps handle high-viscosity fluids?

Yes our rotary gear pumps are designed to handle fluids up to 1,000,000 cP, such as molasses, bitumen, or thick oils.

Q4. Are heating options available?

Yes, optional steam or hot oil jackets maintain temperature to ensure smooth fluid transfer.

Q5. What materials are used for construction?

Available in Cast Iron, SS304, SS316, and special alloys to suit corrosive or food-grade applications.

Q6. Do you provide customized designs?

Yes, Ajay Engineering offers customized pump capacities, speeds, and materials to match client-specific requirements.