Engineering reference · published by NHK Group
Hygienic machinery components, explained
Published by NHK Group ApS
Hygienic design starts with the components. The feet, bearing units, castors and conveyor parts on a machine decide how easy it is to clean, how much water and detergent cleaning takes, how often it stops for maintenance, and how high the contamination risk is. This site explains how to choose them.
- Selection methods
- Standards explained
- RFQ checklists
Topics
Hygienic design and standards
EHEDG, 3-A, ingress protection and the design principles behind cleanable machines.
Bearing units
Housed bearing units for washdown, wet and food-contact zones: housings, seals and lubrication.
Levelling feet and castors
Machine levelling feet, base feet and castors for floors that are cleaned every day.
Conveyor and machine components
Side guides, brackets, clamps and other parts that shape how a line is cleaned.
Materials and surfaces
Stainless steel grades, plastics, elastomers and surface finish in hygienic equipment.
Industries and applications
How requirements differ across dairy, meat and poultry, beverage, bakery and pharma.
Buyer's guides
Checklists and selection guides for specifying and sourcing hygienic components.
All articles →
Every article on the site, newest first.
Latest articles
All articles
420 Stainless Steel for Machine Parts: Properties and Limits
Is 420 stainless steel good for machine parts? AISI 420 and 420B properties, hardening, corrosion limits in washdown, where it fits and what to specify.
440 Stainless Steel for Bearings and Wear Parts
Is 440 stainless steel good? AISI 440 hardness, corrosion limits in washdown, why it is used for bearings and wear parts, and what to specify.
ATP Swab Test: Sampling, Limits and Cleaning Verification
Understand ATP and RLU limits, map machine sampling points, set criteria with the test supplier and QA, and investigate recurring cleaning failures.
Bakery and Confectionery Production Equipment: Hygiene and Parts
Map bakery and chocolate process risks to components: flour dust, dry cleaning, allergens, sugar, heat, inspection and supplier-document checks.
Bearing Failure Causes: Washdown Diagnosis and Prevention
Diagnose water ingress, corrosion, lubricant loss, misalignment, overload and fretting. Read bearing damage and specify seals, units and relubrication.
Belt Scraper: Food Conveyor Selection and Cleaning
Select a conveyor belt scraper for food lines: blade and splice compatibility, carry-back collection, hygienic mounting, fault checks and copyable RFQ.
Don't waste time searching
Tell us what your machine needs
Send a part number or describe the application – zone, cleaning method, load – and NHK's technicians will suggest the right component and send a detailed quote.
- Levelling feet, castors and bearing units
- Conveyor components and side guides
- EHEDG and 3-A standard components
Prefer email? HMP@nhkgroup.eu · (+45) 2492 5030
About the publisher
This site is published by NHK Group ApS in Assens, Denmark, which supplies hygienic machinery components for food processing, dairy, beverage, pharmaceutical and other hygiene-critical production. NHK has representative offices in Barcelona, Paris, Milano, Thessaloniki, Stuttgart, Rotterdam, Warszawa, Quebec, Manchester, Mongkok and Milwaukee.
NHK holds EHEDG certificates for a bearing (C2400043), a component (C2300067) and levelling feet (C2400039), and lists 3-A authorised levelling feet, supports and system components.