Stirrer Drives

Stirrer Drives

Stirrer Drives are robust mechanical drive units engineered to deliver controlled rotational energy to stirring shafts in glass reactors, agitated vessels, and process columns. They are designed for continuous-duty operation, ensuring uniform mixing, repeatable process performance, and long service life under demanding operating conditions.

These drives are fully compatible with bellow seal systems, mechanical seal assemblies, and PTFE-lined stirring shafts, making them suitable for laboratory, pilot, and industrial-scale installations.

Construction & Mechanical Design

• Heavy-duty electric motor with precision gearbox
• Vertically mounted drive configuration
• Rigid drive housing in powder-coated mild steel or stainless steel
• Hardened output shaft with accurate concentricity
• High-quality bearings for axial and radial load absorption
• Provision for seal assemblies (bellow / mechanical)

Key Features & Advantages

• Stable torque output across full speed range
• Smooth, vibration-free rotation
• Low operational noise
• High mechanical efficiency
• Long maintenance intervals
• Easy installation and alignment
• Reliable operation in corrosive environments (with SS construction)

Operating Capabilities

• Variable speed operation via external controller
• Accurate RPM control for process optimization
• Capability to handle varying viscosities
• Designed for continuous batch or cyclic operation

Technical Specifications

Parameter	Specification
Drive Type	Electric motor driven, geared
Speed Range	Variable (typically 10–300 RPM)
Power Rating	0.25 HP to 3 HP (customizable)
Torque Output	As per vessel size & viscosity
Mounting Orientation	Vertical, top-mounted
Housing Material	Powder-coated MS / SS 304 / SS 316
Output Shaft	Hardened steel / SS
Duty Class	Continuous
Speed Control	VFD / electronic controller
Seal Compatibility	Bellow seal / mechanical seal
Protection Class	IP55 / IP65 (on request)
Operating Temperature	Ambient to moderate process limits

Drive Integration & Compatibility

• Glass reactor assemblies
• SS and PTFE-lined stirrer shafts
• Propeller, turbine, paddle, and blade stirrers
• Bellow seal drive units
• Mechanical seal stirring assemblies

Typical Applications

• Chemical reaction vessels
• Pharmaceutical formulation reactors
• Pilot-scale process development
• Resin and polymer processing
• Solvent mixing and blending systems

Selection Criteria

Proper selection of a stirrer drive depends on:

• Reactor volume
• Process viscosity
• Required mixing intensity
• Operating RPM
• Seal type
• Operating temperature and pressure

Optional Accessories

• Digital RPM indicator
• Torque monitoring
• Vibration dampers
• Mounting frames and brackets
• Remote control panel integration

Quality & Compliance

• Designed for industrial process reliability
• Manufactured with precision machining standards
• Suitable for GMP and pilot plant environments
• Factory-tested for performance and safety