What Is a Progressive Grease Lubrication System?
Electric grease lubrication pump
Progressive grease distributor
Main lubrication pipeline
Secondary lubrication pipelines
Connectors and fittings
Pressure monitoring components
Low-level monitoring components
Controller or PLC interface
How Does a Progressive Grease Lubrication System Work?
Grease Is Stored in the Reservoir
The lubrication pump stores grease in its reservoir and supplies it to the lubrication circuit when the lubrication cycle begins.Grease selection should always follow the requirements of the equipment and operating environment. For applicable BAOTN progressive grease lubrication systems, compatible grease can include NLGI 000–2, depending on the specific model and application.We recommend confirming grease consistency, viscosity, operating temperature, and compatibility before commissioning a system.The Electric Pump Generates Pressure
When the lubrication cycle starts, the electric pump pressurizes the grease and sends it into the main lubrication line.Depending on the system configuration, lubrication cycles can be controlled by a built-in controller or integrated with the machine's PLC.The required pump pressure should not be selected simply by looking at the number of lubrication points. We normally consider the complete flow path, including pipeline length, fittings, distributor resistance, grease characteristics, and the most distant lubrication point.The Progressive Distributor Meters the Grease
The pressurized grease enters the progressive distributor.Inside the distributor, individual metering sections operate in sequence. Each section moves a predetermined quantity of grease before the next section operates.This progressive sequence allows grease to be distributed to multiple lubrication points from a centralized pump.At BAOTN, we provide different progressive distributor configurations, including GET, GEN, GEO, GPE, and GPC series, so the distributor can be selected according to the required outlets and system layout.
Grease Reaches the Lubrication Points
After passing through the progressive distributor, grease travels through secondary pipelines to the designated lubrication points.These points may include:
Bearings
Linear guideways
Ball screws
Gears
Bushings
Slides
Pins
Other moving mechanical components
The objective is to supply the required amount of grease at the required interval, rather than simply delivering as much grease as possible.
Main Components of a Progressive Grease Lubrication System
When we design a progressive lubrication system, we normally evaluate every component as part of the overall lubrication circuit.
Electric Grease Lubrication Pump
Reservoir capacity
Maximum operating pressure
Pumping volume
Lubrication cycle
Grease compatibility
Voltage
Control method
Low-level monitoring
Pressure monitoring
If you need to compare available configurations, view our progressive grease lubrication pump systems and review the specifications for different applications.
Progressive Grease Distributor
Number of lubrication outlets
Required grease quantity
Distribution sequence
System pressure
Pipeline configuration
Future expansion requirements
Lubrication Tubing and Fittings
Pipeline length
Internal diameter
Bending radius
Connection quality
Leakage prevention
Protection against mechanical damage
Pipeline outlets should be cut cleanly, and connections should be properly secured. Poor connections can lead to grease leakage, pressure loss, or insufficient lubrication.
Pressure and Level Monitoring
Blocked lubrication lines
Abnormal system pressure
Pipeline leakage
Distributor problems
Low-level monitoring can indicate when the grease reservoir needs to be refilled.
For applications where equipment operates continuously or is difficult to access, we strongly recommend considering appropriate monitoring functions.
What Are the Advantages of a Progressive Grease Lubrication System?
Automatic Multi-Point Lubrication
A single centralized pump can supply multiple lubrication points through a network of distributors and pipelines.This is particularly useful when a machine has many lubrication points distributed across different areas.
Controlled Grease Delivery
The progressive distributor provides metered grease delivery rather than relying on an operator to estimate the required amount manually.This helps create a more consistent lubrication process.
Reduced Manual Maintenance
With an automatic lubrication system, operators do not need to manually access every lubrication point during each lubrication cycle.This can be particularly valuable for equipment with difficult-to-reach or hazardous lubrication points.
More Consistent Lubrication
Insufficient lubrication can accelerate friction and component wear, while excessive grease can also create problems.A properly configured progressive system helps deliver grease according to a defined lubrication schedule and quantity.
Easier System Monitoring
Pressure and low-level monitoring can provide additional information about system operating conditions.For automated production equipment, this can make lubrication management easier to integrate into the overall machine control system.
Progressive Grease Lubrication vs. Manual Greasing
However, when a machine contains numerous lubrication points or operates for long periods without interruption, a progressive centralized lubrication system can offer significant maintenance advantages.
| Feature | Manual Greasing | Progressive System |
| Labor requirement | High | Low |
| Lubrication consistency | Depends on operator | Controlled |
| Multiple lubrication points | Difficult | Suitable |
| Monitoring | Limited | Available |
Progressive vs. Other Centralized Lubrication Systems
Resistance lubrication systems
Volumetric lubrication systems
Dual-line lubrication systems
Oil-air lubrication systems
Oil mist lubrication systems
Number of lubrication points
Lubricant type
Lubricant viscosity
Required delivery volume
Required pressure
Pipeline distance
Machine operating conditions
Lubrication frequency
Control requirements
The entire lubrication circuit should be evaluated.
| System | Application |
| Progressive | Multiple grease points |
| Resistance | Small oil systems |
| Dual-line | Large industrial machines |
| Oil-air | High-speed spindle applications |
How We Select a Progressive Grease Lubrication System
When helping customers configure a progressive lubrication system, we normally start with the machine rather than the pump.
Determine the Number of Lubrication Points
First, identify every component that requires automatic lubrication.For example, a CNC machine may require lubrication for guideways, ball screws, bearings, and other moving components.The number and distribution of these points determine how many outlets and distributors may be required.
Confirm the Grease Type
Grease characteristics directly affect pumping and distribution performance.Important parameters include:NLGI grade
Base oil viscosity
Operating temperature
Additive system
Equipment compatibility
Some of our progressive grease systems are compatible with NLGI 000–2 grease, but the correct grease must always be confirmed according to the equipment manufacturer's requirements and the specific pump model.
Calculate the Required Pressure
We need to make sure that the pump can generate sufficient pressure to deliver grease to the most demanding lubrication point.When evaluating pressure requirements, we consider:Pump → Main Pipeline → Progressive Distributor → Secondary Pipeline → Lubrication PointPipeline length, fittings, grease characteristics, temperature, and distributor resistance can all affect the actual pressure requirement.
Determine the Lubrication Cycle
The required lubrication frequency depends on the equipment, bearing or component type, operating speed, load, temperature, and lubricant.A higher grease delivery rate is not necessarily better.Our goal is to configure a system that supplies the appropriate quantity at the appropriate interval.
Evaluate the Operating Environment
We also consider the environment in which the machine operates.Relevant conditions include:Ambient temperature
Dust
Moisture
Vibration
Outdoor exposure
Corrosive environments
Continuous operation
These conditions can influence pump selection, grease selection, tubing configuration, and monitoring requirements.
Progressive Grease Lubrication System Applications
Progressive systems are suitable for a wide range of industrial equipment.
CNC Machine Tools
A centralized system can distribute grease to these points automatically according to the required lubrication cycle.
Automation Equipment
Automatic lubrication can help reduce the need for frequent manual greasing.
Construction Machinery
A centralized grease lubrication system can reduce the amount of manual maintenance required.
Textile Machinery
Textile production equipment often contains multiple moving components that require consistent lubrication while maintaining continuous production.
Metallurgy and Heavy Industry
Industrial equipment used in demanding environments may require centralized lubrication to help manage numerous lubrication points and simplify maintenance.
Wind Power Equipment
At BAOTN, our lubrication solutions are used across machine tools, automation equipment, textile machinery, engineering machinery, metallurgy, wind power, and other industrial applications.
Common Progressive Lubrication System Problems
Even a properly selected pump can experience problems if the complete system is not installed or maintained correctly.
Problem | Possible Cause | Solution |
Grease leakage | Loose fitting | Check connection |
Blocked line | Contaminated grease | Clean system |
Insufficient lubrication | Wrong configuration | Review system design |
How BAOTN Approaches Lubrication System Design
Number and location of lubrication points
Required grease quantity
Grease type
Pipeline layout
Required pressure
Lubrication frequency
Control method
Monitoring requirements
Installation environment
If you want to learn more about our technical capabilities and lubrication solutions, visit our About BAOTN page.
When Should You Consider a Progressive Grease Lubrication System?
Your machine has multiple lubrication points.
Manual greasing requires significant labor.
Lubrication points are difficult or unsafe to access.
Equipment operates continuously or automatically.
Consistent grease delivery is important.
You need pressure or low-level monitoring.
The machine requires centralized lubrication.
You are developing new equipment.
You want to upgrade manual lubrication to automatic lubrication.
If several of these conditions apply to your equipment, a progressive centralized lubrication system may be a practical solution.
Frequently Asked Questions
What is a progressive grease lubrication system?
A progressive grease lubrication system is a centralized automatic lubrication system that uses a pump and progressive distributors to deliver metered quantities of grease sequentially to multiple lubrication points.
How many lubrication points can a progressive system serve?
For larger systems, multiple distributors can be used to create the required distribution network.
What type of grease can be used?
The grease must be compatible with the selected pump and system. Some BAOTN progressive grease systems support NLGI 000–2 grease, but the exact grease should be confirmed according to the equipment requirements and specific model.
Is a progressive lubrication system suitable for CNC machines?
Yes. Progressive grease lubrication systems can be suitable for CNC machines with multiple lubrication points such as guideways, ball screws, bearings, and other moving components, provided the system is correctly configured for the machine.
Can the system be connected to a PLC?
This can allow lubrication cycles, pressure signals, low-level alarms, or other operating information to become part of the machine's control and maintenance system.
How do I choose the right progressive grease pump?
The key information includes the number of lubrication points, grease type, required quantity, lubrication frequency, pipeline distance, operating environment, pressure requirements, and control method.
