Introductory vs. dual-line vs. progressive – which is right?
The choice of distribution principle determines reliability, maintainability and costs. Here is the compact comparison – plus information on design.
Introduction
- Mission: short lines, moderate score
- Advantages: simple, inexpensive, easy to dose
- Limitations: Pay attention to cable lengths/temperature windows
Dual line
- Mission: long lines, many points, harsh environment (often grease)
- Advantages: robust, insensitive to temperature, large networks
- Limitations: higher system effort
Progressive
- Mission: clearly defined quantities per cycle, good monitoring
- Advantages: clear error detection (stroke monitoring)
- Limitations: fixed order, does not tolerate blockages
Selection criteria
- Number of lubrication points & line lengths
- Medium: Oil (viscosity) or grease (NLGI 00-2)
- Temperature/environment, desired monitoring depth
More basics: Central lubrication · Components: Distributor, Pumps & aggregates, Control & monitoring
FAQ
Which system is the most flexible?
Dual line is good for long distances and big scores.
When progressive?
When fixed quantities per cycle and clear diagnosis are required.
Oil or fat?
According to speed/temperature: oil for high speed/cooling, grease for a stable lubricating film.