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Hydraulic Surface Grinder, Model PH 1218
Hydraulic Surface Grinder, Model PH 1218
Prayosha Enterprise is one of the eminent manufacturers and suppliers of Hydraulic Surface Grinding Machines. Available in various specifications, these machines are simple to use and have gained acclamation for robust construction and precise engineering. Model PH 1218 features a compound table design with column fixed to the bed. This provides versatile operation, with all cast iron components well designed and heavily ribbed for the best rigidity and dampening capacity. All models have Turcite 'B' lining for both the cross-feed guide way and the table V and flat ways. These are also hand scraped, with sufficient lubrication to guarantee easy maintenance and long lasting performance. The optional timed automatic lubrication system supplies oil to guide-ways and lead screws as the machine operates. This system ensures all the critical components are lubricated with the right amount of oil at all times. Specifications: max table size – 300 x 450 mm; max longitudinal travel – 525 mm; max cross traverse – 350 mm; max spindle centre (height above table) – 400 mm; max table speed – 15 m/min; power cross traverse – 1000 mm/min; auto cross feed at each table reversal (infinitely variable) – 0.5 to 10 mm; least count of vertical feed head wheel – 0.002 mm; size of grinding wheel – 200 x 20 x 31.75 mm; power of spindle motor – 2 HP; speed of grinding spindle – 2800 RPM; working pressure – 20 kg/cm; motor – 2 HP; tank capacity – 75 ltrs; machine height – 1600 mm; floor space – 1500 x 1450 mm; and net weight – 1400 kg. The electric components and functional modules are well-arranged and packed in the electric cabinet, making maintenance and trouble shooting easily accessible. High precision Class 7 (CP 4) angular contact ball bearings are used on the cartridge spindle, integrated with a dynamically balanced shaft, sealed and lubricated for life. All the spindles are assembled at the company’s works by skilled and experienced technicians in temperature-controlled clean room. The result is a spindle that will provide years of trouble free service with minimum temperature change, noise or vibrations, the external and independent hydraulic unit eliminates the transfer of heat and vibration to the machine, which is essential for high precision machining. A specially designed valve and proximity switches enable smooth table reversing with a 1.5 to 15 meters per minute table speed.