Occupational Dermatitis and Allergic Respiratory During Machining / Taiwan-Based Metalworking Fluid Manufacturer & Supplier For 39 Years | HLJH

/ HAI LU JYA HE Co., Ltd. (HLJH) have been focusing on manufacturing and marketing the industrial lubricants more than 30 years. Our fundamental belief is to make a harmful, friendly with lives, businesses, and leaving a lasting legacy for generations to come. We offer metalworking fluids (water-based cutting fluid, neat cutting oil), rust preventive oil, hydraulic oil, slideway oil, spindle oil, gear oil and so on that cover the whole industrial lubricant value chain.

Occupational Dermatitis and Allergic Respiratory During Machining

Machining processes typically involve the use of coolants and lubricants to reduce friction and heat. Prolonged skin exposure to these substances can lead to dermatitis. Most common metalworking fluids are strongly alkaline, and contact with skin can remove natural oils and damage the proteins in the skin's protective outer layer. Skin's water content is diminished, and the result is dry, scaly, inflamed skin.


Metalworking fluids (MWFs), mainly used as 2 - 10% emulsions in water which are among the commonest chemical exposures. Aggressive pH, this is not the only cause, though. Metal fines, particularly those containing chromium, zinc, cobalt and nickel are often the culprits in machine shop dermatitis, along with improper fluid concentration, and additives that are out of balance. Contrary to popular belief, bacteria do not cause irritant contact dermatitis, although bacteria can aggravate the condition and cause secondary infections.
How can irritant contact dermatitis be prevented in a metal shop? These skin diseases as well as several minor ones associated with exposure to lubricating coolants can be prevented by measures designed to minimize contact and to improve personal hygiene.

Preventive Measures for Occupational Dermatitis:

1.) Follow the instructions and training given by your employer on safe systems of work when working with metalworking fluids.

2.) Use splash guards, where provided, to control splashing and misting.

3.) Use any enclosures or ventilation provided to remove or control any mist or vapor produced.

4.) Allow a time delay before opening the doors on machine enclosures to ensure that all mist and vapor have been removed by the ventilation.

5.) Report any damaged or defective splash guards, ventilation hoods or other control equipment.

6.) Open workroom doors and windows to improve natural ventilation.

Skin protection

1.) Reduce your contact with wet workpieces and surfaces.

2.) Don not put your bare hands into fluid sumps or use oily rags to wipe them clean.

3.) Wear suitable gloves, overalls, aprons, goggles or face shields if needed (Notice: Gloves can be hazardous if worn near rotating machinery or parts.)

4.) Take care not to contaminate the inside of your gloves with metalworking fluids when putting them on or taking them off.

5.) You should ensure your hands are kept clean and in good condition. Using pre-work creams may help to make removing contaminants easier. After-work creams are particularly beneficial because they help restore the natural moisture content of the skin after washing hands.

6.) Cover any cuts and abrasions with a waterproof dressing.

7.) Wash regularly with soap and water to remove metalworking fluids from your skin. Avoid using abrasive or powerful solvent cleaners.

8.) Wash your hands thoroughly before eating, drinking or smoking. Pay particular attention to washing skin under rings and watch straps.

Sump fluid control

1.) Do not discard unwanted food, drink or any other debris into the sump.

2.) Tell your supervisor if you see any layers of scum or large amounts of tramp oil on top of the sump fluid, or if the sump fluid is dirty or smelly.

3.) Follow good working practices when mixing fluids, cleaning and topping up sumps etc.

Other precautions

1.) Store personal protective equipment in the changing facilities provided or another clean storage area.

2.) Change dirty overalls regularly and keep oily rags out of your pockets.

3.) Avoid eating or drinking in areas where metalworking fluids are used.


Occupational dermatitis and allergic respiratory issues are significant concerns for those working in the machining industry. The more you know about the hazards associated with metalworking fluids and the precautions you should take, the safer you will be.

At Hai Lu Jya He, our expert team is dedicated to assisting you in selecting the perfect cutting oil for your equipment. Contact us (+886-4-25332210) today to discover how our metalworking oils can enhance your machinery's efficiency, durability, and overall performance.

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Occupational Dermatitis and Allergic Respiratory During Machining | Eco-Friendly, Harmless & Low Pollution Industrial Lubricants Manufacturer And Supplier Since 1982 | HLJH

Located in Taiwan, HAI LU JYA HE CO., LTD has been an industrial lubricant manufacturer and supplier. Main products, include metalworking fluids, industrial lubricants, soluble cutting oils, semi-synthetic cutting oils, synthetic cutting fluids, neat cutting oils, rust preventive oils, slideway oils and hydraulic oils, which can reach 150 tons of cutting fluids per month.

HAI LU JYA HE Co., Ltd. (HLJH) have been focusing on manufacturing and marketing the industrial lubricants more than 30 years. Our fundamental belief is to make a harmful, friendly with lives, businesses, and leaving a lasting legacy for generations to come. We offer metalworking fluids (water-based cutting fluid, neat cutting oil), rust preventive oil, hydraulic oil, slideway oil, spindle oil, gear oil and so on that cover the whole industrial lubricant value chain. Our fundamental belief is to offer harmful and friendly products such as water-based cutting oils, neat cutting oil, rust preventive oil, hydraulic oil, slideway oil, spindle oil, gear oil and so on that cover the whole industrial lubricant value chain.

HLJH has been offering customers high-quality metalworking oils and fluids, both with advanced technology and 39 years of experience, HLJH ensures each customer's demands are met.