Introduction to pp filter cartridge making machine
A pp filter cartridge making machine is a specialized manufacturing system designed to produce polypropylene (PP) melt-blown filter cartridges widely used in water purification, industrial filtration, food processing, pharmaceuticals, and chemical fluid handling. As global demand for high-efficiency filtration continues to grow, manufacturers are investing heavily in advanced automation and precision engineering to improve productivity, consistency, and cost-effectiveness.

This complete guide explores everything you need to know about the pp filter cartridge making machine, including how it works, its components, applications, specifications, and why leading brands—such as the HENGTENG Machine 2e2mPP Melt-blown Filter Cartridge Machine—are preferred by filtration product manufacturers worldwide.
Table of Contents
- Introduction
- What is a PP Filter Cartridge Making Machine?
- How the Machine Works
- Core Components of a PP Filter Cartridge Making Machine
- Types of PP Filter Cartridge Making Machines
- Industrial Applications
- Benefits of Using a Modern PP Filter Cartridge Making Machine
- HENGTENG Machine 2e2mPP Melt-blown Filter Cartridge Machine
- Equipment Specifications
- How to Choose the Right PP Filter Cartridge Making Machine
- Maintenance best practices
- Summary Table
- Frequently Asked Questions
- References
What Is a PP Filter Cartridge Making Machine?
A pp filter cartridge making machine is an automated production line that manufactures PP melt-blown filter cartridges by melting polypropylene pellets, extruding them into microfibers, winding them into cylindrical forms, and precisely shaping them into standardized filter dimensions.
These filters are commonly known as:
- Melt-blown filter cartridges
- PP sediment filters
- Spun cartridge filters
- PP depth filters
They are widely used in RO systems, industrial purification, food processing, petrochemical plants, and medical environments.
How a PP Filter Cartridge Making Machine Works
The working process of a pp filter cartridge making machine typically includes the following stages:
1. Polypropylene melting
Raw polypropylene is heated to high temperatures and melted into a semi-fluid state. The machine’s extruder must maintain stable temperature control to ensure uniform fiber formation.
2. Melt-blown extrusion
The melted PP is pushed through micro-sized nozzles, forming ultra-thin fibers ranging from 1–100 microns depending on machine settings.
3. Fiber forming & layering
High-pressure air stretches the extruded fibers and deposits them onto a rotating mandrel or collection drum, forming multi-layer depth filtration structures.
4. Automatic winding
The fibers are wound tightly to achieve proper density, filtration precision, and mechanical strength.
5. Cutting & shaping
Cartridges are trimmed to standard lengths such as 10″, 20″, 30″, and 40″.
6. Cooling & stabilization
The cartridge cools and stabilizes to maintain its structural integrity and filtration performance.
Core Components of a PP Filter Cartridge Making Machine
A modern pp filter cartridge making machine typically includes:
- PP extruder system
- Melt-blown spinning die
- Air heating & airflow control system
- Automatic winding system
- Precision cutting mechanism
- PLC control panel & touch screen interface
- Cooling and shaping system
- Safety and monitoring sensors
Types of PP Filter Cartridge Making Machines
1. Semi-automatic machines
Lower cost, but require manual intervention for winding and cutting.
2. Fully automatic PP filter cartridge machines
Preferred for factories requiring high productivity, consistency, and minimal labor input.
3. Multi-layer PP melt-blown systems
Allow creation of gradient filtration cartridges for improved depth filtration performance.
4. Customized high-precision machines
Designed for industries requiring strict micron control, such as pharmaceuticals and micro-electronics.
Industrial Applications
The pp filter cartridge making machine is used to manufacture cartridges for:
- RO water purification systems
- Industrial wastewater filtration
- Food and beverage processing
- Chemical processing & petrochemical industries
- Electronics manufacturing
- Medical filtration systems
Benefits of Using a Modern PP Filter Cartridge Making Machine
Benefits include:
- Consistent filtration precision
- High production speed
- Lower labor cost due to automation
- Uniform density and structural stability
- Customizable cartridge dimensions
- Energy-efficient operation
Introducing the HENGTENG Machine 2e2mPP Melt-blown Filter Cartridge Machine

Among the top-tier options in the industry, the HENGTENG Machine 2e2mPP Melt-blown Filter Cartridge Machine is recognized globally for precision engineering, high productivity, and advanced automation technology.
Key Features & Advantages
- Fully Automatic Control System: Smart PLC system ensures stable, efficient, seamless operation.
- Energy Efficient: Extremely low power consumption — only 30KW/h.
- Wide Filtration Range: Supports accuracy from 1μm to 100μm.
- Customizable Dimensions: Inner diameter range 10mm–150mm, outer diameter 38mm–120mm.
- Durable Build: Built using robust materials for continuous 24-hour performance.
- Voltage Flexibility: AC380V/Hz and DC220V/50Hz (customizable options available).
- High Productivity: Produces up to 5800 filter cartridges per 24 hours.
Equipment Specifications
| Parameter | Specification |
|---|---|
| Power Consumption | 30KW/h |
| Filter Precision | 1μm, 5μm, 10μm, 20μm, 30μm, 50μm … 100μm |
| Inner Diameter Range | 10mm – 150mm (Default: 28mm) |
| Outer Diameter Range | 38mm – 120mm |
| Filter Length | 10″, 20″, 30″, 40″ |
| Voltage | AC380V/Hz, DC220V/50Hz, customizable |
How to Choose the Right PP Filter Cartridge Making Machine
Factors to consider:
- Required micron rating range
- Desired production capacity
- Machine automation level
- Operational energy consumption
- Durability & build quality
- Voltage compatibility
- Cost vs. long-term performance
Maintenance Best Practices
- Clean melt-blown die heads regularly
- Monitor temperature sensors and heating elements
- Lubricate mechanical components
- Perform monthly calibration of PLC system
- Inspect winding system for alignment
- Replace worn cutting blades promptly
Summary Table
| Topic | Key Information |
|---|---|
| Machine Purpose | Manufactures melt-blown PP filter cartridges |
| Main Benefits | High productivity, stable precision, automation |
| Key Features | PLC control, adjustable micron rating, energy efficiency |
| Recommended Model | HENGTENG Machine 2e2mPP Melt-blown Filter Cartridge Machine |
| Best For | Water filtration, industrial purification, food processing |
Frequently Asked Questions (FAQ)
1. What materials are used in PP filter cartridges?
They are made from pure polypropylene microfibers created through melt-blown extrusion.
2. What is the production capacity of a high-end pp filter cartridge making machine?
Top models like HENGTENG machines can produce up to 5800 cartridges per 24 hours.
3. Can micron accuracy be adjusted?
Yes, from 1µm to 100µm depending on machine configuration.
4. Are these machines suitable for RO water filtration products?
Yes. PP cartridge filters are widely used in domestic and industrial RO systems.
5. How long does the machine operate continuously?
High-quality machines are engineered for stable 24-hour operation.


