About HONGZHU CENOSPHERE
HONGZHU is a professional source factory located in Hebei, China, specializing in the production and supply of high-purity white hollow fly ash cenosphere. We own standardized production workshops, fully automatic sorting equipment and independent quality inspection laboratory, integrating production, testing, packaging and export into one complete industrial chain.
Our floating beads feature low density, high temperature resistance, excellent thermal insulation and good fluidity, widely applied in oil well cementing, casting insulation, refractory filling, thermal coating and composite material industries. We support customized particle size, whiteness and density grades to match diverse client technical demands.
We have established stable long-term cooperation with industrial buyers all over the world. With sufficient spot inventory, free sample service and full set of export certification documents, we provide reliable one-stop raw material solutions for global manufacturing enterprises.
OUR FACTORY
OUR PRODUCETS
Customer Reviews
Stable cenosphere for oil well cementing, perfect supplier!
We have purchased hollow cenosphere from Hongzhu for 3 years. The density and particle size are extremely stable, greatly reducing the cement slurry density and improving our construction efficiency. The factory can arrange bulk shipments quickly, and their technical team always gives professional matching suggestions. Highly recommended for oilfield raw material partners.
— Mark T.
High whiteness & good thermal insulation performance
The white cenosphere we received has low impurity content and excellent fluidity. It works well as filler for our refractory insulation castables, effectively lowering product weight and boosting heat resistance. Free samples were provided before mass order, and all test reports are complete for customs clearance.
— Lisa S.
Reliable long-term cooperative manufacturer
Hongzhu supports customized specifications to match our coating formula. The production cycle is short, and the large warehouse ensures no stock shortage. Their after-sales service responds fast when we have technical questions. We will keep long-term cooperation for our thermal insulation coating projects.
— David W.