Carbon Block Resistivity Tester at Room Temperature

ISO11713 2000、YS/T63.2-2006

ALC-45 Carbon Block Resistivity Tester is used to measure the resistivity of prebaked anode and prebaked cathode carbon block at room temperature.

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Dust Fineness by Blaine

ASTM C204-84、YS/T734-2010

The ALC-26 Dust Fineness by Blaine uses air permeation method to characterize the specific surface area of powders, which can quickly and intuitively reflect the specific surface area of mixed powders.

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Catalyst Abrasion Index Tester

ASTM D5757、 RIPP29-90、Q/TSH3490 909-2006

ZYLL-1A Catalyst Abrasion Index Tester is used to measure the grinding and wear properties of catalysts under spouting fluidization.

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// about us

Supplier of Carbon, Petroleum Coke and Powder Physical Property Testing Equipment

Beijing Leadlong Technology Co., Ltd. specializes in the research and development of testing equipment for electrolytic aluminum and carbon for aluminum, manufacturing high-tech content and high-quality equipment, providing timely and thoughtful pre-sale and after-sale services, and putting the commitment of win-win cooperation with users into practice.

The company relies on advanced manufacturing technology, testing methods and scientific management system to continuously improve product quality; the company will continue to explore and dedicate all wisdom and strength, understand the core needs of customers, and create value for users.

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// PRODUCTS

CHOOSE OUR PRODUCTS

At present, the company produces more than 20 kinds of products in three categories: carbon for aluminum, calcined petroleum coke and powder physical property testing, and provides experimental production lines and overall designs of laboratories.

This instrument is designed and manufactured according to GB/T 2294-97 national standard "Ball-and-Ring Method"

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ZYLL-7000 Asphalt Quinoline Insoluble Matter Tester is designed and manufactured according to GB/T 2293-2008 national standard.

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ZYLL-5000 Automatic Asphalt Toluene Insoluble Matter Tester is a new generation of high-performance mechatronics intelligent product designed and manufactured according to GB/T 2292-2008 national standards.

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The silicon-molybdenum rod is used as heating element.

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The 1300°C High Temperature Muffle Furnace, designed specifically for high-temperature experiments and material sintering, offers precise temperature control and easy operation, making it an ideal choice for laboratories and research institutions. Integrated design of furnace body and intelligent controller is beautiful and generous.

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Integrated design of furnace body and intelligent controller is beautiful and generous.

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ZYLL-1B Catalyst Abrasion Index Tester is used to measure the grinding and wear properties of catalysts under spouting fluidization.

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ZYLL-1A Catalyst Abrasion Index Tester is used to measure the grinding and wear properties of catalysts under spouting fluidization.

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// WHY CHOOSE OUR COMPANY

Technology and Services

The company relies on advanced manufacturing technology, testing methods and scientific management system to continuously improve product quality; the company will continue to explore and dedicate all wisdom and strength, understand the core needs of customers, and create value for users.

Technological innovation

The company pays close attention to the technological progress of the industry, unite the powerful enterprises and research institutions in the industry, and unremittingly promote the continuous progress and improvement of carbon detection technology for aluminium in China.

Technical team

Since its establishment, the company has gathered professional and technical personnel in areas of mechanical design, software development, analysis and testing, carbon for aluminum etc. It has improved existing technology with innovative spirit, and realized comprehensive upgrade and replacement of products in a short time.

Application

The products are mainly used for quality inspection of petroleum coke, asphalt, graphite electrode, carbon for aluminum and other raw materials and products related to petrochemical, metallurgical and building materials industries.

After sale, Worry Free

Specializes in the research and development of testing equipment for electrolytic aluminum and carbon for aluminum, manufacturing high-tech content and high-quality equipment, providing timely and thoughtful pre-sale and after-sale services, and putting the commitment of win-win cooperation with users into practice.

Cooperative clients

Shandong Qiming Carbon Co., Ltd.

Jinan Aohai Carbon Co., Ltd.

Qitaihe Baotai Longshengmai Coal Industry Co., Ltd.

Dezhou East Hope Carbon Co., Ltd.

Qinyang Carbon Co., Ltd.

Weifang Lianxing New Materials Technology Co., Ltd.

Dalian Shante Mining Equipment Co., Ltd.

Fangda Carbon New Materials Technology Co., Ltd.

Shandong Yongfeng New Materials Technology Co., Ltd.

Xinjiang Xinlian Coal Chemical Industry Co., Ltd.

Shandong Qiming Carbon Co., Ltd.

Jinan Aohai Carbon Co., Ltd.

Qitaihe Baotai Longshengmai Coal Industry Co., Ltd.

Dezhou East Hope Carbon Co., Ltd.

Qinyang Carbon Co., Ltd.

Weifang Lianxing New Materials Technology Co., Ltd.

Dalian Shante Mining Equipment Co., Ltd.

Fangda Carbon New Materials Technology Co., Ltd.

Shandong Yongfeng New Materials Technology Co., Ltd.

Xinjiang Xinlian Coal Chemical Industry Co., Ltd.

Shandong Qiming Carbon Co., Ltd.

Jinan Aohai Carbon Co., Ltd.

Qitaihe Baotai Longshengmai Coal Industry Co., Ltd.

Dezhou East Hope Carbon Co., Ltd.

Qinyang Carbon Co., Ltd.

Weifang Lianxing New Materials Technology Co., Ltd.

Dalian Shante Mining Equipment Co., Ltd.

Fangda Carbon New Materials Technology Co., Ltd.

Shandong Yongfeng New Materials Technology Co., Ltd.

Xinjiang Xinlian Coal Chemical Industry Co., Ltd.

Chiping Huaxin Carbon Co., Ltd.

Hunan Xingcheng Shimo Technology Co., Ltd.

Shandong Tianyang Carbon Co., Ltd.

Ningxia Ningping Carbon Co., Ltd.

Xinjiang Qiya Aluminum and Electric Co., Ltd.

Shandong Yili Electric Industry Co., Ltd.

Beijing Huarui Xincheng Technology Co., Ltd.

Henan Songyue Carbon Co., Ltd.

Jiangsu Suyadi Carbon Materials Co., Ltd.

Chiping Huaxin Carbon Co., Ltd.

Hunan Xingcheng Shimo Technology Co., Ltd.

Shandong Tianyang Carbon Co., Ltd.

Ningxia Ningping Carbon Co., Ltd.

Xinjiang Qiya Aluminum and Electric Co., Ltd.

Shandong Yili Electric Industry Co., Ltd.

Beijing Huarui Xincheng Technology Co., Ltd.

Henan Songyue Carbon Co., Ltd.

Jiangsu Suyadi Carbon Materials Co., Ltd.

Chiping Huaxin Carbon Co., Ltd.

Hunan Xingcheng Shimo Technology Co., Ltd.

Shandong Tianyang Carbon Co., Ltd.

Ningxia Ningping Carbon Co., Ltd.

Xinjiang Qiya Aluminum and Electric Co., Ltd.

Shandong Yili Electric Industry Co., Ltd.

Beijing Huarui Xincheng Technology Co., Ltd.

Henan Songyue Carbon Co., Ltd.

Jiangsu Suyadi Carbon Materials Co., Ltd.

Yantai University

Jiangxi Jiutong Carbon Co., Ltd.

Shandong Dong’e Haiyun Calcined Petroleum Coke Co., Ltd.

Qinghai Jiurun Technology Equipment Co., Ltd.

Xichuan Aluminum Group Co., Ltd.

Shandong Qianhao Carbon Co., Ltd.

Shandong Longkou Thermodynamic Instrumentation Factory

Jinan Longshan Carbon Co., Ltd.

Baotou East Hope Carbon Co., Ltd.

East Hope Group Baotou Rare Earth Aluminum Co., Ltd.

Yantai University

Jiangxi Jiutong Carbon Co., Ltd.

Shandong Dong’e Haiyun Calcined Petroleum Coke Co., Ltd.

Qinghai Jiurun Technology Equipment Co., Ltd.

Xichuan Aluminum Group Co., Ltd.

Shandong Qianhao Carbon Co., Ltd.

Shandong Longkou Thermodynamic Instrumentation Factory

Jinan Longshan Carbon Co., Ltd.

Baotou East Hope Carbon Co., Ltd.

East Hope Group Baotou Rare Earth Aluminum Co., Ltd.

Yantai University

Jiangxi Jiutong Carbon Co., Ltd.

Shandong Dong’e Haiyun Calcined Petroleum Coke Co., Ltd.

Qinghai Jiurun Technology Equipment Co., Ltd.

Xichuan Aluminum Group Co., Ltd.

Shandong Qianhao Carbon Co., Ltd.

Shandong Longkou Thermodynamic Instrumentation Factory

Jinan Longshan Carbon Co., Ltd.

Baotou East Hope Carbon Co., Ltd.

East Hope Group Baotou Rare Earth Aluminum Co., Ltd.

Xinjiang Tianlong Aluminum Group

The 6th Agricultural Division Xinfa Aluminum Co., Ltd., Xinjiang

Jiaozuo Wandu (Qinyang) Carbon Co., Ltd.

The 8th Agricultural Division Aluminum Co., Ltd., Xinjiang Production and Construction Corps

Hebei Gaocheng Carbon Product Co., Ltd.

Jinan Haichuan Investment Group Co., Ltd.

Datong Xincheng New Materials Co., Ltd.

Shuicheng County Xinxin Carbon Co., Ltd.

Shandong Nanshan Aluminum Co., Ltd.

Shandong Zhongxing Carbon Co., Ltd. (Xinfa Group)

Xinjiang Tianlong Aluminum Group

The 6th Agricultural Division Xinfa Aluminum Co., Ltd., Xinjiang

Jiaozuo Wandu (Qinyang) Carbon Co., Ltd.

The 8th Agricultural Division Aluminum Co., Ltd., Xinjiang Production and Construction Corps

Hebei Gaocheng Carbon Product Co., Ltd.

Jinan Haichuan Investment Group Co., Ltd.

Datong Xincheng New Materials Co., Ltd.

Shuicheng County Xinxin Carbon Co., Ltd.

Shandong Nanshan Aluminum Co., Ltd.

Shandong Zhongxing Carbon Co., Ltd. (Xinfa Group)

Xinjiang Tianlong Aluminum Group

The 6th Agricultural Division Xinfa Aluminum Co., Ltd., Xinjiang

Jiaozuo Wandu (Qinyang) Carbon Co., Ltd.

The 8th Agricultural Division Aluminum Co., Ltd., Xinjiang Production and Construction Corps

Hebei Gaocheng Carbon Product Co., Ltd.

Jinan Haichuan Investment Group Co., Ltd.

Datong Xincheng New Materials Co., Ltd.

Shuicheng County Xinxin Carbon Co., Ltd.

Shandong Nanshan Aluminum Co., Ltd.

Shandong Zhongxing Carbon Co., Ltd. (Xinfa Group)

Henan Shenhuo Group

Wugang Beihu Shengyuan Carbon Co., Ltd.

China Baowu Steel Group, Nanjing Branch

Daqing Industrial & Engineering Chemistry Research Center of PetroChina Company Limited

China University of Mining and Technology

East China University of Science and Technology

Tsinghua University

China Nonferrous Metal Industry’s Foreign Engineering and Construction Co., Ltd.

Institute of Coal Chemistry, Chinese Academy of Sciences

Institute of Process Engineering, Chinese Academy of Sciences

Henan Shenhuo Group

Wugang Beihu Shengyuan Carbon Co., Ltd.

China Baowu Steel Group, Nanjing Branch

Daqing Industrial & Engineering Chemistry Research Center of PetroChina Company Limited

China University of Mining and Technology

East China University of Science and Technology

Tsinghua University

China Nonferrous Metal Industry’s Foreign Engineering and Construction Co., Ltd.

Institute of Coal Chemistry, Chinese Academy of Sciences

Institute of Process Engineering, Chinese Academy of Sciences

Henan Shenhuo Group

Wugang Beihu Shengyuan Carbon Co., Ltd.

China Baowu Steel Group, Nanjing Branch

Daqing Industrial & Engineering Chemistry Research Center of PetroChina Company Limited

China University of Mining and Technology

East China University of Science and Technology

Tsinghua University

China Nonferrous Metal Industry’s Foreign Engineering and Construction Co., Ltd.

Institute of Coal Chemistry, Chinese Academy of Sciences

Institute of Process Engineering, Chinese Academy of Sciences

Institute of Geophysical & Geochemical Survey, Chinese Academy of Geologecal Sciences

Aluminum Corporation of China Limited, Liancheng Branch

Chalco Shanxi Guanlv Carbon Co., Ltd.

Equipment Research & Testing Center of Chalco Shangdong Aluminum Company

Chalco (Vietnam) Project Department

Chalco Chibi Changcheng Carbon Product Co., Ltd.

Aluminum Corporation of China Limited, Qinghai Branch

Chalco Gongfu Technology Co., Ltd.

Aluminum Corporation of China Limited, Zhongzhou Branch

Chalco Fushun Aluminum Co., Ltd.

Institute of Geophysical & Geochemical Survey, Chinese Academy of Geologecal Sciences

Aluminum Corporation of China Limited, Liancheng Branch

Chalco Shanxi Guanlv Carbon Co., Ltd.

Equipment Research & Testing Center of Chalco Shangdong Aluminum Company

Chalco (Vietnam) Project Department

Chalco Chibi Changcheng Carbon Product Co., Ltd.

Aluminum Corporation of China Limited, Qinghai Branch

Chalco Gongfu Technology Co., Ltd.

Aluminum Corporation of China Limited, Zhongzhou Branch

Chalco Fushun Aluminum Co., Ltd.

Institute of Geophysical & Geochemical Survey, Chinese Academy of Geologecal Sciences

Aluminum Corporation of China Limited, Liancheng Branch

Chalco Shanxi Guanlv Carbon Co., Ltd.

Equipment Research & Testing Center of Chalco Shangdong Aluminum Company

Chalco (Vietnam) Project Department

Chalco Chibi Changcheng Carbon Product Co., Ltd.

Aluminum Corporation of China Limited, Qinghai Branch

Chalco Gongfu Technology Co., Ltd.

Aluminum Corporation of China Limited, Zhongzhou Branch

Chalco Fushun Aluminum Co., Ltd.

// CONTACT US

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// BLOG

Blog & Media

Nov 13,2025

Understanding the Importance of a 1700℃ High Temperature Muffle Furnace in Chemical Laboratories


In the realm of chemical laboratories, the 1700℃ High Temperature Muffle Furnace stands out as a pivotal piece of equipment designed for various high-temperature applications. This device is engineered to provide uniform heating and is ideal for processes such as ash analysis, sintering, and ceramics testing. Its ability to reach high temperatures makes it suitable for a broad range of materials,

Nov 08,2025

How to Clean and Maintain Your Laboratory Muffle Furnace Effectively


How to Clean and Maintain Your Laboratory Muffle Furnace Effectively In any laboratory setting, the muffle furnace stands as an essential tool for various thermal processes. Proper cleaning and maintenance not only enhance its performance but also ensure safety and longevity. As we delve into this detailed guide, we’ll cover everything you need to know about keeping your muffle furnace in top shap

Nov 03,2025

Functionality and Importance of Automatic Asphalt Softening Point Testers


Asphalt softening point testers are crucial instruments in the field of civil engineering and material testing, specifically within the electrical and specialized instrumentation industry. The automatic asphalt softening point tester is designed to determine the softening point of asphalt and bitumen, which is a vital property affecting the performance of asphalt in road construction and maintenan

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