Impeller/Rotor: Diameter 50-500 mm, Efficiency 75-92%

Component Specifications

Definition

The impeller/rotor is a critical rotating element within feed pump modules, designed with curved blades or vanes that accelerate fluid radially outward when rotated. This component converts mechanical energy from the motor into kinetic energy and pressure in the fluid, enabling controlled fluid transport in industrial systems. Its hydrodynamic design directly impacts pump efficiency, flow rate, and pressure generation.

Working Principle

Operates on centrifugal force principles: as the impeller rotates at high speed, fluid enters axially at the eye, is captured by blades, and accelerated radially outward. This creates a pressure differential that moves fluid through the pump casing to the discharge outlet.

Materials

Typically manufactured from stainless steel (AISI 316/304), duplex stainless steel, cast iron, bronze, or engineered polymers (PP, PVDF) depending on fluid compatibility and operating conditions. Materials must resist corrosion, erosion, and cavitation.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Diameter	50-500 mm
Efficiency	75-92%
Blade Count	5-9 blades
Balance Grade	G6.3 per ISO 1940
Rotation Speed	1450-3500 RPM
Pressure Rating	Up to 25 bar

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 5199, ISO 2858, DIN 24256, ANSI/HI 1.3

Parent Products

This component is used in the following industrial products

Feed Pump Module

A modular pumping unit designed to deliver precise quantities of fluid or slurry feed material to downstream processes within an industrial system.

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Engineering Analysis

Risks & Mitigation

Cavitation damage
Corrosion failure
Imbalance vibration
Fatigue cracking
Erosion wear

FMEA Triads

Trigger: Material fatigue from cyclic loading
Failure: Blade fracture leading to catastrophic pump failure
Mitigation: Implement regular non-destructive testing (ultrasonic/eddy current), use fatigue-resistant materials, maintain proper alignment, and monitor vibration levels

Trigger: Abrasive particle contamination in fluid
Failure: Progressive erosion reducing efficiency and causing imbalance
Mitigation: Install filtration systems, use wear-resistant coatings (ceramic/tungsten carbide), select appropriate material hardness, and implement predictive maintenance

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.05 mm dimensional tolerance, ±0.01 mm balance tolerance

Test Method

Hydrodynamic performance testing per ISO 9906, material certification per ASTM/EN standards, dynamic balancing per ISO 1940-1, NDT per ASME V

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

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Manufacturers of Impeller/Rotor

Manufacturer profiles associated with Impeller/Rotor.

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Related Components

Upper Tool (Punch)

Upper Tool (Punch) is the active forming component in metal plate bending machines that applies precise downward force to create bends in sheet metal.

Main Frame

The main frame is the primary structural component of a hydraulic press, providing rigidity and stability to withstand high compressive forces during metal forming operations.

Shaft Bearing

Precision component supporting rotating shafts in vibration motors to reduce friction and maintain alignment.

Seal Groove

Precision-machined groove in aluminum bearing housings designed to accommodate sealing elements for fluid containment and contamination prevention.

Frequently Asked Questions

What causes impeller cavitation and how to prevent it?

Cavitation occurs when local pressure drops below fluid vapor pressure, forming bubbles that collapse violently on impeller surfaces. Prevention methods include maintaining proper NPSH (Net Positive Suction Head), reducing pump speed, using cavitation-resistant materials, and ensuring adequate inlet pressure.

How often should impellers be inspected and replaced?

Inspect impellers every 6-12 months depending on operating conditions. Replace when wear exceeds 10% of original blade thickness, efficiency drops by 15%, or vibration increases beyond ISO 10816 limits. Severe erosion, corrosion, or imbalance requires immediate replacement.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Impeller/Rotor