ZETAGRIND® Cast Steel Grinding Media
20 YEARS IN GRINDING MEDIA PRODUCTION
KSQ Technologies (Beijing) Co. Ltd. have its roots in the the production of wear-resistant materials for use in abrasive refinement processes found in the construction and mining industries. Through the years, we have acquired the know-how and the expertise in this field and compete head-to-head with other international suppliers.
The company produces cast steel grinding media under the brand ZETAGRIND® . The company's ZFCB foundry, established in 1991 in Nankou, Beijing, has gained an excellent reputation all over China and in newly emerging overseas markets with the production of grinding media and cylpebs. It is one of the mainstream manufacturers of high chromium grinding media in China, with an annual production of about 6,000 metric tons of grinding media with more than 60% exported all over the world.
KSQ Technologies (Beijing) Co. Ltd. manufactures the ZETAGRIND® series of cast steel balls from 10mm to 130mm diameter and cylpebs from 12 x 12mm to 35 x 35mm size.
PRODUCT APPLICATION AREAS
- CEMENT INDUSTRY
- MINING INDUSTRY
- CHEMICAL INDUSTRY
- SILICA INDUSTRY
- COAL INDUSTRY
- AGGREGATE INDUSTRY
QUALITY IN THE MANUFACTURING PROCESS
1. ZETAGRIND® is the preferred grinding media of choice by many cement and mining companies in China and in markets overseas.
2. ZETAGRIND® gives you the best cost advantage, especially when considering the industry standards on grinding media wear rate per ton milled/processed.
3. We use the following equipment for the production of the ZETAGRIND® series of cast steel grinding media:
Materials are first carefully selected for melting using modern induction furnaces. Chemical composition checks are carried our prior to the release for casting. Horizontally split molds are produced using “green sand” made from mixing silica sand, bentonite, coal dust, and water. The quality of the “green sand” is controlled on a regular basis throughout the production period. The actual molds are then made using the renowned DISAMATIC process. Molten metal is then poured into the sand molds created out of the DISAMATIC equipment from the holding furnace.
Depending on the media size being produced on the production run, the process (molding and pouring) speed can range from 90 to 140 molds per hour.
After pouring, the molds are allowed to slow cool prior to the shake out process which separates the castings from the “green sand” (which is then recycled). A grinding mill is then used to tumble the castings. Sorting is carried out to divide the good grinding media from the runners, risers, and other metal elements, which are then returned for remelting. Prior to the heat treatment process, all grinding media is inspected visually to remove any extraneous material and any defective pieces. The grinding media is then treated in a two stage hardening and tempering process with hardness tests and austenite levels being determined after each stage.
The final grinding media product is then readied for shipping, packed in either metal drums or container bags.
Each step on the manufacturing process is controlled according to rigorous quality assurance procedure.
Wear resistance is supported by the microstructure matrix with optimized chromium carbides. Since the casting of the ZETAGRIND® series of cast steel grinding media are done through a horizontal molding process, our media have only one ingate (especially for the large diameter media). This one ingate assures:
- geometrically round shape for grinding media balls
- a perfect microstructure
- complete saturation in the first cut area
- no blowholes
Through multi-stage heat treatment and air quenching, the remaining austenite content is reduced to a minimum and consequently offers a high breakage resistance.
Regular analysis assures an economical operation of clients' grinding mill.
ZETAGRIND® series of cast steel grinding media are of the latest state of art. The wear and breakage resistance of the ball alloy allows a reliable and economical operation of clients' grinding mill.
Continuous analysis in our testing laboratories, in addition to precise knowledge regarding all of the mechanical and process technology of modern grinding plants form the basis of our production of a high quality product that clients can always trust and rely on.
Our customer-centric service is an advantage to our clients. From individual recommendations, detailed planning, up to reliable installations. We are also there for our clients if questions arise, or if there are other requirements. Of course, we are there for our clients for maintenance and inspection.