Babacan Group manufactures alkaline-resistant rubber spare parts for concrete pumps and concrete placing equipment. All concrete-contact rubber components are formulated in EPDM or chloroprene (CR) compounds for compatibility with fresh concrete at pH 12-13.Concrete pump rubber parts range: S-valve wear rings and rock valve rubber elements, spectacle plate rubber packing rings, hydraulic cylinder rod seals and buffer rings, waterbox rubber end seals, boom pipe rubber coupling joints, DN125/DN150 coupling seals and reducer gaskets, and agitator shaft seals. Compatible with Putzmeister, Schwing, Cifa, Sany, Liebherr, and other concrete pump manufacturers.We supply NBR compound only for hydraulic oil circuits (not concrete-contact surfaces). All concrete pump order specifications include compound type confirmation. Quality verified per ISO 9001:2015.Request a quote with your pump model and primary concrete mix specifications.