Stopfen (plug / stopper) — TPU shell for mechanical equipment Key benefits Reliable protection: Designed to seal openings and cover exposed components on mechanical equipment to prevent contamination from dust, debris, and moisture. Durable and flexible shell: The shell material is TPU, offering good elasticity and wear resistance for repeated use without cracking. Easy to use: Simple to fit and remove, reducing downtime during maintenance or transport. What this product does Functions as a plug/stopper (Stopfen) to close or protect ports, openings, threads, or shaft ends on a wide range of mechanical equipment. The visible shell material is TPU, providing a soft yet resilient barrier between sensitive parts and the environment. Important attributes Function: Plug / stopper for protection and temporary sealing. Application: Specifically intended for mechanical equipment. Shell material: Thermoplastic polyurethane (TPU) — flexible and abrasion-resistant. Compatibility: Suitable wherever a TPU-shelled stopfen is specified or where a flexible protective plug is required. Check fit dimensions against your equipment before ordering. Performance notes Provides a reliable physical barrier against contaminants and minor impacts. TPU shell supports repeated installation and removal without significant deformation under normal handling. Not a pressure-rated sealing device unless explicitly specified; intended primarily for protection and temporary sealing on mechanical equipment. Typical use scenarios Maintenance protection: Cover open ports, threaded holes, or shaft ends during servicing to keep out dust and metal shavings. Transport and storage: Protect exposed components while equipment is moved or stored to prevent damage and contamination. Assembly and paint/finish operations: Temporarily plug openings to avoid ingress of paint, solvents, or debris during production processes. Ordering and selection tips Confirm the stopfen fits the specific opening or component on your machine before purchase. If you require pressure sealing, chemical resistance beyond general TPU properties, or exact dimensional tolerances, verify specifications or request additional details. Simple, functional protection for mechanical equipment where a TPU-shelled stopfen is required.