The hoist for Heavy Duty industrial applications The Model MH-5 Series is a premium quality electric chain hoist that is designed especially to fulfil the most arduous demands of industry. A multitude of special heavy-duty features are built into the MH-5 Series for extra efficiency, dependability, durability and safety. Heavy Duty Motor The special heavy duty, high performance motors of Model MH-5 (1-speed) have 30 minute ratings and Class B insulation for severe use in heavy duty applications. Electromagnetic Brake This powered brake system responds instantly and supplies dependable positive braking power. An extremely long service life has been achieved with the use of non-asbestos brake linings. Steel Construction The main frame consists of two rugged steel side plates that will provide maximum protection against dynamic loads. Castings that are able to crack or break have not been employed in the main frame. Over-Hoisting & Over-Lowering Protection This powered brake system responds instantly and supplies dependable positive braking power. An extremely long service life has been achieved with the use of non-asbestos brake linings. Ultra-Tough Load Chains Nitchi case-hardened load chains are made from special alloy steel and are given super-tough, carbonized hard surfaces that resist abrasion several times longer than conventional through-hardened load chains. The soft core section gives the load chain the elasticity which is essential for material lifting equipment. Every link of load chain is tested and a record of each chain production lot is kept on record at the Nich factory. Forged Steel Hooks The top and bottom hooks on all capacities swivel to all directions and are made of drop-forged steel that is heat-treated for greater strength. Every bottom hook is equipped with a thrust bearing for smooth rotation and has a safety latch as standard equipment. Oil Bath Lubrication As in all types of high quality machinery, the Nitchi Series uses the oil bath lubrication system. The continuous bath of oil lubricates the reduction gear system and also acts as a coolant for the mechanical brake. Antiphase Protection Relays This relay prevents damage to the hoist caused by misconnections (negative phase connections) of the power source wires. First Stage Helical Gearing The first stage helical gearing provides a dependable, longer and quieter life by reducing gear tooth impact and vibration to a minimum. The reduction gears are exclusively designed for extra durability and are made of special alloy steel that is expertly and precisely heat-treated for maximum strength. Mechanical Brake The very reliable mechanical brake works in cooperation with the electromagnetic brake and holds suspended loads at any point. Push Button Switch The strong, lightweight push button switch on MH-5 hoists is rainproof and responds immediately at the touch of the button.