Molding press hydraulics.

Rubber molding press hydraulic systems are designed as stand alone units to operate single or multiple presses. The stand alone molding press hydraulic systems are said to offer improved process reliability over aging central hydraulic/accumulator systems plagued by maintenance downtime issues, according to the company. After separating critical production centers into independent cells, unscheduled maintenance shutdowns are said to be eliminated through manageable preventative maintenance programs. Stand alone hydraulic systems are said to be easier to maintain due to their inherent simplicity. Multiple stand along units also provide redundant components such as pumps, valves and pressure controls. The company's press control systems tan be designed with a linear transducer that provides position feedback throughout the press stroke. Standard systems fitted with a transducer feature options such as bumping to a position or pressure. Varying mold heights are automatically compensated for, thereby eliminating time consuming set-ups by technicians, according to the company. A mold alignment pin safety engagement feature protects expensive molds from damage due to misaligned mold halves. Critical positions such as press open, press closed, mold pin engagement and slowdown can be stored in a variety of recipe type storage screens. The company's hydraulic systems utilize pre-fill valves to eliminate large displacement pumps. Rapid press speeds are achieved with a minimal amount of horsepower required, according to the company. Improved press speeds are said to lead to decreased production cycle times. Conventional NFPA hydraulic components are used on all hydraulic systems. All valves, manifolds and piping systems are manufactured using SAE o-ring type connections designed for long-term, leak-free service, according to the manufacturer. (Rubber City Machinery, 1000 Sweitzer Ave., Akron, OH 44309)

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