NK-3 Metalworking Fluid
Category:
Product Features:
★ Exhibits excellent cooling and extreme-pressure performance, reducing tool wear;
★ Reliable rust-prevention performance: Provides excellent rust protection for workpieces and equipment even under long-term use;
★ Stable performance of metalworking fluids: Maintains excellent stability even under conditions of high water hardness and the presence of cast-iron particles;
★ Strong resistance to extraneous oils: Minimizes the impact and hazards of extraneous oils on metalworking fluid systems. Even when hydraulic oil, lubricating oil, or other oils leak into the working fluid, NK-3 metalworking fluid maintains excellent machining performance and stability. Continuous use of skimming devices or oil-absorbing filter paper further reduces the total content of extraneous oils.
★ User- and Environment-Friendly: Free of prohibited chemicals and with reduced levels of harmful substances; the product contains no boron, phenol, nitrites, or other prohibited chemicals, nor chlorine or phosphorus that pose environmental risks.
★ Excellent defoaming performance: no defoamer required; maximum operating pressure for the cutting fluid: approximately 50 bar.
Designed for various standalone, high-flow centralized fluid supply systems, and manufactured from steel and other ferrous materials.
Service Hotline: +86-513-88442062
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Product Details
NK-3 metalworking fluid is a next-generation semi-synthetic metalworking fluid that combines the advantages of emulsifiable and fully synthetic formulations, specifically designed for large-scale centralized lubrication systems.
Typical Data
Project | Quality indicators | ||
Concentrate | Appearance | Amber-colored liquid | |
Density (20°C), g/cm 3 | 0.95 ± 0.05 | ||
5% dilution | Mechanical impurities | None | |
Emulsion pH | 8.0–10.0 | ||
Emulsion stability | Oil-free soap precipitation | ||
Defoaming property (30±2℃), mm/10 min | ≤2 | ||
Corrosion test | Grade 1 gray cast iron, (24 h) | Qualified | |
Red copper, (8h) | Qualified | ||
Rust Prevention Test | Single piece of Grade 1 gray cast iron, 24 hours | Qualified | |
Precautions
How to use
Metalworking: 5–7% Grinding: 5%
This product is suitable for water with a hardness of 0–300 ppm. To ensure the service life of the coolant tank, the concentration of the metalworking fluid should be measured at least twice weekly using a refractometer or titration. At the same time, solid contaminants should be removed as much as possible through filtration equipment, and emulsified oil should be eliminated using an oil-removal device.
Precautions
Variations in product color may occur over time or with changes in temperature, but this does not affect performance.
This product should be stored indoors; if stored outdoors, it must be sheltered from the elements and protected from direct sunlight to prevent rainwater from seeping into the product and from causing the markings on the oil drum to deteriorate.
Cutting fluids should be stored in environments free from high and extremely low temperatures, and containers should be kept tightly sealed at all times to prevent contamination by foreign matter.
Packaging, Storage, and Transportation
25 kg, 200 kg, 1,000 kg (Note: Packaging shall be in plastic drums or iron drums.)
Packaging, storage, and transportation shall comply with non-hazardous goods requirements.
Shelf life: one year
Keywords:
NK-3 Metalworking Fluid
Related Cases
Shandong Longma Heavy Industry Group is dedicated to the R&D and manufacturing of high-end castings and precision bearings, with a strong presence in the wind-turbine bearing sector. Kexing’s QH—fully synthetic metalworking fluid—is widely used in wind-turbine bearings and wind-turbine castings (such as hubs and bases), while the HJ-921C cleaning agent meets the industry’s stringent requirements for residual salt levels. Senior management at Longma highly commends the quality of Kexing Chemical’s products, and Kexing Chemical is the exclusive supplier of all chemical auxiliaries used in machining operations.
Wanxiang Group is dedicated to cutting-edge research, technological development, and application-oriented manufacturing in the fields of clean energy and intelligent motion control, operating on a global scale and ranking among China’s Top 500 enterprises. Over the years, its products—including Kexing cleaning agents, metalworking fluids, rust inhibitors, anti-rust oils, and anti-wear hydraulic oils—have been supplied as complementary components to Qianchao Bearings and Wanxiang Precision, both subsidiaries of the Wanxiang Group.
Riyue Heavy Industry Co., Ltd. is a publicly listed company specializing in the integrated R&D, innovation, application, manufacturing, sales, and service of metal materials and new energy technologies, with a particular focus on casting and machining. The company excels in producing large-section ductile iron components for critical heavy equipment, holding a leading position in the industry. Kexing offers complementary services, including cleaning agents, cutting fluids, and rust inhibitors.
Founded in 1907, the SKF Group is now one of the world’s largest manufacturers of rolling bearings, operating more than 80 plants and producing a wide range of bearings, seals, and specialty bearing steels. The company accounts for 20% of global bearing output and serves customers in 130 countries and regions. Kexing’s W1-100 cleaning oil, HJ-921 series heavy-oil scale cleaners, NK series grinding fluids, JS series rust inhibitors, and GJ-1 series ultra-pure oils are used as supporting products for SKF and have earned the company’s recognition and appreciation.
(1) In October 2020, Kexing Chemical solved the global challenge of “cleaning after carbonitriding” for SKF’s Changshan plant.
(2) In 2021, Kexing Chemical was selected by SKF as the sole domestic supplier to replace foreign brands.
(3) In May 2024, Kexing Chemical creatively implemented the industry’s first “online impurity-removal oil management patent technology” in SKF’s “280-ton chip-fluid tank long-life management” project, thereby resolving the issue of “degraded cleaning performance” at SKF’s Xinchang plant caused by “oil adhesion on the outer ring” in the “Phase II Precision Grinding Line No. 63.”
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Nantong Kexing Chemical Co., Ltd.
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No. 80, Tonggang Road, High-tech Industrial Development Zone, Haian City, Jiangsu Province, China.
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