Selected speciality lubricants for chains and conveyors 

Industry Upper service temp,approx. Speciality lubricant from Klüber Lubrication
Food-processing and pharmaceutical industries 650 °C Klüberfood NH1 CH 6-120 SUPREME
250 °C Klüberfood NH1 CH 2-220 Plus
250 °C Klüberfood NH1 CH2-460
120 °C Klüberfood NH1 C8-80
120 °C Klüberoil 4 UH1-32, 46, 68, 100, 150, 220, 320, 460 N
Other industries    
  1,000 °C WOLFRAKOTE TOP FLUID
  500 °C Klüberoil YF 100
Aqueous graphite suspension for chains subject to high
thermal stress, free from solvents, low nuisance through smoke or odour.
  Klüberplus S01-004
Conveyor systems with drying oven
Conveyor chains in hardening furnaces
250 °C Klübersynth CHM 2 series,
Klübersynth CH 2-100 N or other 
viscosities of the Klübersynth CH 2 series 
High-temperature oil used in car body painting.   Klübersynth CHX 2-220
For continuous fibreboard presses. Mainly for conveyor belt lubrication.   HOTEMP SUPER N PLUS
Lubrication of chains and bolts (ContiRoll presses).   HOTEMP SUPER CH 2-100 
Cleaning oil for chains/pins of continuous fibreboard presses.    Klübertherm CH 2-140
Especially for fabric conveyor chain in textile finishing machines.   Klübersynth CTH 2-260
For conveyor chains in biaxial film stretchers, especially
for high and very high chain speeds and stretching temperatures.
Approved by Messrs. Brückner Maschinenbau, Lindauer-Dornier, Andritz-Biax and ESOPP.
 

Klübersynth CH 2-280
Klübersynth CFH 2-400,
Klübersynth CHZ 2-225
PRIMIUM SUPER M93

Special oil for lubricating and cleaning chain systems of
film stretchers in one work step.
  Klübersynth CZ 2-85
Chain lubricant based on mineral oil,
also for conveyor chains operating in wet areas.
120 °C STRUCTOVIS HD series; especially STRUCTOVIS FHD and STRUCTOVIS EHD
Lubricating wax for chains, quasi-dry lubricating film up to 70 - 80 °C   Klüberplus SK 11-299
Biodegradable chain oils. 100 °C  Klüberbio EG 2 series 
Biodegradable chain oil especially for outdoor escalators. 80 °C Klüberbio C 2-46

1) This lubricant is NSF H1-registered and therefore complies with FDA 21 CFR § 178.3570. The lubricant was developed for incidental contact with products and packaging materials in the food-processing, cosmetics, pharmaceutical or animal feed industries. The use of this lubricant can contribute to increasing the reliability of your production processes. Nevertheless, it is recommended to conduct an additional risk analysis, e.g. HACCP. 

What does a good lubricant do?

Play

In view of these challenges, lubricants for chains must have  a high-pressure absorption capacity and especially effective   antiwear characteristics so wear can be kept to a permissible   minimum despite the prevailing mixed friction conditions. Depending on their specific application, chain lubricants are expected to provide:

– Corrosion protection 
– Good wetting and spreading characteristics 
– High adhesiveness 
– High thermal resistance 
– Ability to dissolve used lubricant 
– Low carbonisation tendency 
– Usability at low temperatures 
– Media resistance

Additional selection criteria may include: 

– Food-grade requirements (H1, ISO 21469) 
– Eco-compatibility (rapidly biodegradable) 
– Noise damping

Chain elongation as a function of lubrication and service duration

Graph 1: Chain running dry (no initial or relubrication)

Graph 2: Initial lubrication by chain manufacturer, no relubrication. Wear is prevented until the (initial) lubricant is used up; then the chain runs dry.

Graph 3: Temporary dry-running; delayed relubrication leads to stepped graph.

Graph 4: Insufficient lubrication, e.g. due to inappropriate/low-quality lubricant or insufficient quantities of lubricant.

Graph 5: Optimal lubrication; low wear-induced chain elongation.

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