Central Hub: Torque Capacity 800-2000 Nm, Diameter 150-300 mm

Component Specifications

Definition

The central hub is a precision-engineered component that serves as the core structural element in industrial dough mixer impeller assemblies. It provides the mounting interface between the rotating drive shaft and multiple impeller blades, ensuring proper alignment, torque transmission, and mechanical stability during high-viscosity mixing operations. The hub's design directly impacts mixing efficiency, dough consistency, and equipment longevity.

Working Principle

The central hub converts rotational energy from the drive shaft into synchronized blade movement through rigid mechanical coupling. It maintains precise angular positioning of blades to create optimal dough folding, stretching, and kneading patterns while withstanding significant torsional and bending stresses during operation.

Materials

Stainless steel AISI 316L (food-grade), hardened to 40-45 HRC, with corrosion-resistant surface finish (Ra ≤ 0.8 μm)

Technical Parameters

Parameter	Typical range	Notes & selection driver
Weight	5-15 kg
Max RPM	120
Diameter	150-300 mm
Bore Size	40-80 mm (keyed)
Balance Grade	G6.3 per ISO 1940
Mounting Holes	4-8 × M12 threaded
Torque Capacity	800-2000 Nm

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 9001, ISO 22000, DIN 11850, 3-A Sanitary Standards

Parent Products

This component is used in the following industrial products

Industrial Dough Mixer Impeller Assembly

High-efficiency mixing component for industrial bakery dough preparation systems.

View Product Details

Spider Assembly

A structural component within a control rod assembly that provides radial support and positioning for control rod fingers or blades.

View Product Details

Engineering Analysis

Risks & Mitigation

Fatigue failure from cyclic loading
Corrosion in high-moisture environments
Improper installation causing imbalance

FMEA Triads

Trigger: Material fatigue from continuous high-torque operation
Failure: Crack propagation leading to catastrophic hub fracture
Mitigation: Regular non-destructive testing (ultrasonic or magnetic particle inspection) and preventive replacement schedules

Trigger: Improper cleaning allowing dough residue buildup
Failure: Corrosion and bacterial contamination
Mitigation: Implement strict sanitation protocols with food-safe cleaners and thorough drying procedures

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.05 mm on critical dimensions, concentricity within 0.1 mm TIR

Test Method

Dimensional verification with CMM, dynamic balancing test, torque testing to 150% rated capacity

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 Central Hub

Manufacturer profiles associated with Central Hub.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What maintenance does the central hub require?

Regular inspection for wear, cleaning after each use, torque verification of mounting bolts monthly, and replacement if any cracks or deformation are detected.

Can hubs be customized for different mixer models?

Yes, manufacturers typically offer custom bore sizes, mounting patterns, and material specifications to match specific mixer designs and capacity requirements.

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.

Central Hub