Harindera trading corporation provides portable diaphragm type motor mounted vacuum pumps and compressors. These are absolutely dry type and 100 per cent oil free. They are corrosion resistant, maintenance-free, vibration-free and simple in operation. Some of their salient features include: single stage and double stage, more flow per horse power, easy to mount, easy to service, flexible design, strong but compact and portable, easy to carry, built-in motor, thoroughly tested for smooth long life and easy operation, absolutely no contamination of any medium passing through, noiseless, revolutionary, efficient, economical, extremely reliable models to suit all suction needs, etc. Related applications are in laboratories and medical instruments and equipment, dentists, pollution control and material handling equipment, labelling machines and laminating press and graphic arts machines, vacuum soldering irons, plastic welding machines, oil-free spray painting, chemical aeration, pneumatic tools, agitation of chemicals in electroplating and drying tanks, beverage dispensing, sampling and monitoring vending machines, etc.