hydraulic cylinder bellows

BSTFLEX Sewn Round Bellows are custom flexible protective covers designed for hydraulic cylinder rods, ball screws, lead screws, shafts, actuators and other moving machine components. The pleated fabric construction expands and compresses with equipment movement while helping shield critical parts from dust, metal chips, abrasion, oil, coolant and heat. Each round fabric bellows can be customized in inside diameter, outside diameter, compressed length, extended length, stroke, material and mounting method. Available materials include coated nylon, silicone coated fiberglass, PTFE coated fiberglass, aluminized fiberglass and other technical fabrics for standard or high-temperature applications. Custom collars, flanges, clamps, internal supports and split or zippered designs are available for OEM machinery, replacement parts and special industrial equipment.

BSTFLEX Sewn Zippered Bellows are custom fabric protective covers with a longitudinal zipper that opens for fitting around existing cylinder rods, ball screws, shafts and actuators. The split design provides convenient access for inspection, servicing and bellows replacement, helping reduce component disassembly where equipment layout and end mountings allow. The pleated construction extends and compresses with machine travel while helping protect moving parts from dust and debris. Each zippered fabric bellows can be customized in profile, compressed length, extended length, stroke, zipper position and end fittings. Fabric, sewing thread and zipper components are selected according to operating temperature, coolant exposure and movement requirements for OEM machinery, maintenance and retrofit projects.