Case Study
Hydraulic Depth Filters

Location: PAN INDIA
Product Installed: DEPTH FILTER
Hydraulic Depth Filters
FILTERS that use a porous medium and catch particles using throughout the medium and not just the surface or layer. Medium can be fibrous cellulose, polypropylene along with base paper or flat filter cloth. It normally will have an inner core an outer core, in some case, a shoot to encase the media.
There is normally a base paper or filter cloth to act as a bed to flow of liquid through the media.
Filter extraction hooks /ribbon/or eyelet help removal of filter after it has choked or used.
Types- Depth Filters
- Cellulose Paper Depth Filters.
- Polypropylene Depth Filters.
Cellulose Paper Depth Filters
Developed to increase oil change intervals half a decade back-the method is used worldwide for ultrafine cleaning of machine oils.
Hydraulic oil cleaning is blessed with usage of depth filtration, keeping machines well oiled and never prone to failures.
Long slender fiber pulp are used for making filter paper used for depth filters. Long fibers help absorb moisture, and the capillary action of the fibers help retain moisture in media. The round coil similar to a paper roll from a depth and various level of compression on outer core enable multi layer filtration assisted by base paper, skirting or other arrangement as per manufacturer designs.
Polypropylene Depth Filters
Polypropylene depth filters are highly effective filtration devices engineered to remove contaminants from liquids and gases through a process of depth filtration. Made entirely from polypropylene, these filters are known for their broad chemical compatibility, high dirt-holding capacity, and excellent thermal stability.
All Types & Models






Flow Diagram of Surface Filter Vs Depth Filter


Designs Photos of Depth Filters Used in Industries Housing with Replacement Filters






Depth Filter Element Type -3 Evidence of Delayed Filter Changes



Evidence Of Metal Wear in Machine



NOTE: CHANGE YOUR FILTER ATLEAST WHEN 80% SATURATED OR QUARTERLY OR EARLIER AS PER APPLICATION
POLYPROPYLENE DEPTH FILTERS
Beta ratio | Yes |
Efficiency | Yes |
Dirt holding capacity | Yes |
Moisture absorbing capacity | Yes |
Micron rating | Yes |
Dimensions | Yes |
Some model of cellulose depth filters manufactured around the world:
- M-Series, E- Series, E-Series and more…
- A-Filters Inserts, B- Filters Inserts and more…
- SDC1888, Water glycol filter SDPC 2088, cartridge sdc 1888 depth filters and more…
- Destiny International – India, 200HE, 100 Series, 50 Series , 30 Series and equivalents
- SDU-H350BM2, HDU-H300, SDU-H350RK , 2S-350-C4 , 4S-350-C8 , 6S-350-C12 , SDU-H8 , HDU-H8 , LDU-H8 , CFU-10 , CFU-10-PG , SDU-M8 , HDU-M8 , LDU-M8 , HDU-H8FL , HDU-H300FL2 , SDU-H8FL , SDU-H350BM2-FL , SDU-H8UW-S , SDU-H350UW-S
Don’t change your oil, filter it!
Some model of cellulose depth filters manufactured around the world:1. A-Filters Inserts, B- Filters Inserts and more... 2.SDC1888, Water glycol filter SDPC 2088, cartridge sdc 1888 depth filters and more… 3.Destiny International - India, 200HE, 100 Series, 50 Series , 30 Series and equivalents 4.SDU-H350BM2, HDU-H300, SDU-H350RK , 2S-350-C4 , 4S-350-C8 , 6S-350-C12 , SDU-H8 , HDU-H8 , LDU-H8 , CFU-10 , CFU-10-PG , SDU-M8 , HDU-M8 , LDU-M8 , HDU-H8FL , HDU-H300FL2 , SDU-H8FL , SDU-H350BM2-FL , SDU-H8UW-S , SDU-H350UW-S
Destiny standout as the most reliable supplier & Manufacturer exporter of Hydraulic oil filtration machine, Hydraulic Off-Line Filtration Units, oil filtration machine in India, Hydraulic Oil Filtration Machine, Hydraulic Oil Cleaning System, Hydraulic Oil Cleaning System, Hydraulic Oil Cleaning, Hydraulic Oil Maintenance System, Turbine Oil Filtration Machine, Oil filtration systems manufacturer
Our dedicated team is ready to assist you with any inquiries, technical support, or scheduling consultations. For all of our services, we bring a Particle Counter and Portable Fluid Analysis Kit onsite to analyze oil samples and document our performance achievement of specified ISO cleanliness levels and moisture content
We respond quickly to emergency outages and situations – call us at (783) 878-1100
