Manufacturer of Custom Rubber Molded Products
Pierce-Roberts Rubber Co.

Products for the Hydraulic Industry

From massive hydraulic units to simple rubber gaskets, Pierce-Roberts Rubber Company is skilled in developing rubber products for the heavy machine industry. Pierce-Roberts rubber products work in the field and in the factory by resisting damage from chemicals and performing under repetitive conditions.

Molded Rubber Oil Seals
Oil seals keep internal fluid systems in and keep external contaminants out. Pierce-Roberts oil seals close dynamically between the shaft and sealing rubber and statically between the stationary housing and the seal. We use precise elastomer blends to ensure the integrity of the seal. Our elastomers include Silicone, VitonTM, Flourosilicone, Ethylene Propylene Diene Monomer (EPDM), Styrene-Butadiene Rubber (SBR), Buna N, Butyl rubber, and Natural rubber.

Molded Rubber O-Rings
O-rings are a mechanical seal with an "o-shaped" elastomer. Positioned in a groove and compressed during assembly between parts, they create a seal at the interface. Pierce-Roberts bases the O-ring material selection on chemical compatibility, application temperature, sealing pressure, lubrication requirements, and cost. Our materials include Buna N, Silicone, Viton®, Fluorosilicone, and EPDM.

Rubber Drain Tubes
Pierce-Roberts precision molded rubber drain tubes are constructed from a variety of elastomer compounds for flow lines, fluids, and gases. Pierce-Roberts custom molded rubber drain tubes feature superior flexibility and elasticity while maintaining proper functional shape.

Rubber Gaskets
Rubber gaskets are mechanical seals that serve to fill the space between two objects, generally to prevent leakage between the two objects while under compression. It is usually desirable that the gasket be made from a compressible or slightly compressible material such as compression molded rubber to tightly fill the space it is designed for, including any slight irregularities.

Pierce-Roberts rubber parts withstand high compressive loads. Most industrial gasket applications involve bolts exerting compression well into the 2,000 psi range or higher. Through continuous quality control, Pierce-Roberts molds every rubber product to get the job done time after time.

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Custom Rubber Molding Services