Steel & rolling mills
Gear, oil-film bearing and hydraulic systems at 320 cSt and above.
Gear · Bearing · Hydraulic
Shandong Fengming Huanyu
Est. 2021
Weihai · China
The oil stays.
Everything else does not.
Water, particles and oxidation acids go out; the oil stays in. We build filtration, dehydration and regeneration systems for industrial lubricants and process fluids — nano-sieving membrane separation down to 50 nm, for plants that cannot afford a contaminated sump.
50 / 100 nmFiltration grades
30+Models in range
< 24 hEngineering reply
50 nmFiltration grade
- Technologies
- Four, in-house
- Patents & IP
- 40+
- Build
- Skid, stainless
Specified by
- PetroChinaCNPC
- SinopecRefining
- AnsteelSteel
- HBISSteel
- Linglong TireRubber
- Triangle TireRubber
- Lunan ChemicalChemicals
- 2021
- Founded
- 40+
- Patents & IP
- 30+
- Models in range
- 200+
- Partner plants
Weihai Economic & Technological Development Zone
Including the core nano-sieving membrane
Across seven equipment families
Steel, energy and petrochemical
01The problem
Fluid does not fail suddenly. It drifts, and the machine pays.
A sump is a slow system. Every litre carries in water, wear metal and oxidation product. Left alone, the oil leaves service long before anything looks wrong on a gauge.
| Contaminant | Typical service limit | Where it comes from | What it costs you |
|---|---|---|---|
| Water | ≈ 0.1 % | Coolant leaks, humid intake air, wash-down, seal ingress. | Corrosion and acid formation; loss of the anti-wear film. |
| Solid particles | ISO 18/16/13 | Bearing and gear wear, seal lip abrasion, dust ingress. | Brinelling, rolling-contact fatigue, shortened bearing life. |
| Oxidation acids | 0.5 mg KOH/g | Thermal and oxidative ageing, contamination by water or fuel. | Varnish, sludge, accelerated additive depletion. |
| Dissolved gas | Low abs. pressure | Entrained air, churning in the sump, cavitation downstream. | Foaming, poor pump efficiency, hydraulic cavitation. |
Indicative limits for industrial lubricating and hydraulic systems. Final targets are set per machine, per fluid and per duty cycle.
02Technology
Four processes, one module.
Our core is a multi-purpose nano-sieving membrane, developed in-house and verified by a provincial institute as filling a gap in Chinese technology. Around it sit three further processes — all proprietary, all running in the same housing.
01
Graphene nano-sieving
Sub-100 nm separation across a graphene-based membrane element — the step that defines the grade.
02
Particle-sieving decolourisation
Lifts the dark oxidation by-products that no particle counter reports but every filter cake sees.
03
Screen regeneration
Restores capacity without changing media, so the consumable cost of the line approaches zero.
04
Electrostatic purification
Charges and captures the fine fraction that resists mechanical sieving — without heat or chemicals.
FM · 01
Vacuum oil filters
Hydraulic, turbine and lubricating oil that has taken in water, gas and particulate — including rapid dewatering of very high-viscosity fluids.
60–150 L/minExplore →
FM · 02
Fire-resistant oil purification
Ultra-fine purification of phosphate-ester and water-glycol fire-resistant fluids; removes the species that corrode the system.
FR systemsExplore →
FM · 03
Polymer dehydration
For aviation kerosene, diesel and low-viscosity hydraulic and turbine circuits — stripping particles, pollutants and water.
Fuel depotsExplore →
FM · 04
Automatic sludge discharge
Vertical centrifugal filtration with scraper discharge — continuous, media-free filtering that removes drier sludge.
No consumablesExplore →
FM · 05
Stacked-element fine filters
Keeps system oil clean and dry — particles, water, acids and degradation products. Online or offline.
20 L – 200 000 LExplore →
FM · 06
Mobile ultra-clean units
Ultra-fine filtration and online fluid monitoring in one trolley-mounted skid, for commissioning and in-plant campaigns.
Mobile skidExplore →
FM · 07
Centrifugal oil purifiers
For heavy industrial gear oil, oil-film bearing oil and turbine oil — the workhorse for high-viscosity duties.
FM-60/100/150Explore →
Petrochemical
Turbine, compressor and process oil circuits where water is the enemy.
Turbine · Compressor
Power generation
Hydro, thermal, wind and gas turbines; electro-hydraulic control systems.
Turbine · EH control
Lithium battery & membrane
Dielectric, coating and process fluids where particle count is audited.
Dielectric · Coating
Tire & rubber
Polymeriser oil, extender oil and mixing-room hydraulic systems.
Polymeriser · Extender
Marine
Shipboard hydraulic, steering and bilge systems; fuel treatment.
Hydraulic · Fuel oil
Automotive & machining
Quench, way-lubrication, CNC hydraulic and assembly-line systems.
Quench · Way lube
Mining & coal chemical
Heavy gearboxes, wash systems and coal-chemical process circuits.
Gear · Process
Textile & printing
Heat-transfer oil and dye-house effluent, where colour matters.
Heat transfer · Effluent
Defence & aerospace
Hydraulic systems held to tight cleanliness classes under audit.
Hydraulic · Cooling
Water & oily wastewater
Membrane units for effluent polishing, oil removal and produced water.
Effluent · Produced water
Reclamation
Lubricant producers turning used oil back into saleable stock.
Base oil · Re-refining
05Company
A research-led manufacturer, not a trading company.
Founded in 2021 in the Weihai Economic & Technological Development Zone. More than 10 % of headcount and turnover go into R&D. We carry two national research projects and three provincial ones.
R&D
Research projects
New membrane materials and oil-sludge treatment (national); marine oil-spill response and aquaculture effluent (provincial).
STD
Industry standard
Contributing author of CJ/T 170-2018, Ultrafiltration water treatment equipment.
AWD
Recognition
National High-Tech Enterprise · National Technology-based SME · Shandong “Specialised & Innovative” SME · Shandong first-set (major) technical product.
UNI
University partners
Harbin Institute of Technology (Weihai) · Shandong University (Weihai) · Jilin University Bionics Institute · Suzhou University of Science and Technology · Tianjin University of Science and Technology.
- 11.02.20262025 annual review and commendation ceremony held in WeihaiCompany→
- 18.10.2025Strategic research partnership signed with Harbin Institute of Technology (Weihai)Company→
- 12.08.2025National, provincial and municipal distinctions awardedAwards→
- 31.07.2025Shandong manufacturing profile: a membrane that makes oil renewableMedia→
Start here
Send us the fluid and the problem.
Tell us the oil, the throughput and what you are trying to protect. We will come back with a configuration and a number — not a brochure.
- Hotline
- +86 631 878 1386
- Works
- 195-2 Fengming Road
Weihai, Shandong, China