National Wire Products

PB-700A Polishing Barrel is having automatic cycle for polishing and dust removal. The machine is having a loading capacity of 700Kgs. It is equipped with three-stage dust collection system. After the polishing cycle is over, dust collector sucks the dust from the barrel. While collecting the dust, it also separates the Nail chips, Heavy dust particles and Fine dust particles leaving only clean and polished nails in the barrel. All these separated particles go in their respective bins for easy disposal thus making your plant even more environment friendly. The Fine dust particle collection is having filter of 15 micron to ensure that no dust particle bigger than 15 micron is discharged in the atmosphere. This is very important for environmental safety. The discharge of nail is located at 780mm above the floor level to conveniently unload the nails in large bins. The PB-700A has only three Push Buttons making operation, user friendly. The operation is as easy as pressing a single button START and rest of the chorus are done automatically in cycle. The Machine stops after the cycle is completed thus by leaving the operator free to handle other important work. Even with this simplicity the PB-700A’s flexibility is not compromised, operator can set the polishing time and dust collecting time according to individual plant’s need and the quality of polish required.

SThese machines are designed, developed and manufactured as a result of 45 years' constant research, developments and manu Washer Head Roofing Nail Making Machine facturing experience gained through Wire Nails and Wire Tacks making machines. They have earned the name not only in National but in International markets also. These machines are making the nails with washers riveted on the heads, which are extensively used for Roof fittings.

An automatic electronic Vibrator is fitted on the machines for loading of washers into magazine for continuous run.

Machine is capable of producing Roofing Nails from round, square or pre-twisted wire.

IMPLE, RELIABLE AND QUALITY MACHIES FOR CONTINUOUS OPERATION HEAVY DUTY ROBUST AND REUGGED CONSTRUCTION FOR LOW VIBRATION ECONOMIC ROUND DIES FOR QUICK AND MULTIPLE SETTINGS. HD-4 Wire Nail Making Machine
Salient Features:
Bar type feed slide mechanism for accurate feeding.
Heavily ribbed Body and Base.
Automatic recirculating lubrication for crank-shaft and centralized periodic lubrication system with pressure and oil level sensing to ensure trouble-free long life.
No contact between header punch and ejector; resulting in longer ejector life.
Easy, quick and simple settings requiring no special tools.
Round Gripping Dies with eight grooves enabling up to eight times longer service without any reprocessing due to wear. Carbide tooling compatibility.
Header Punch design permits production of special nails like D head nails, Larger Head(clout) nails, etc. Manufacturing of a 3.0mm nail with 10-11mm head diameter possible in single stroke.

A set of 5x5 bearings in horizontal and vertical planes for better straightening of input wire. Computer designed and precision manufactured Cam along with balanced critical parts resulting in low vibration and reduced noise level. Automatic centralized periodic lubrication system with pressure and oil level sensing, ensuring long trouble-free operation. The bevel gears are totally enclosed in oil chamber and require no attention, except periodical checks. Heavy and robust cast iron base and body to dampen the vibration. Hardened and ground high precision shafts, slides and die-box for longer life. Suitable for using the Tungsten Carbide tools as well. No contact between Header-Punch and Ejector, resulting in long ejector life and reduced noise. Round index able gripping dies with 8 grooves, enabling eight times longer service without any reprocessing.

These machines have been designed and manufactured as a result of 50 years' constant research, development and actual production of Wire Nail as well as Panel Pins in our own factory. In spite of higher rate of output, machines are very easy to run.

All the movements except the pressure for gripping and the ejection, are through cranks, which are essential for smooth running at high speeds maintaining full rate production of well finished nails. Special attention has been given to maintain easy approach to all the required adjustments and settings.

Wide experience has enabled us to offer newly designed NE series machines. These machines are equipped with compact geared type feeding system. Thousands of our 'N series machines are satisfactorily working in our country as well as abroad. Like our earlier 'N' series machines, these machines are capable of producing different types of nail heads and points.

OPERATION:
The wire form wire coil passes through straightening rolls and fed intermittently into the gripping dies which close firmly head of the nail. The grip is loosened now and the required length of wire is fed forward. Then the cutting tools cut the point a little forward of the grip leaving sufficient wire projecting to form the head of the next nail. This sequence of operations is repeated at each revolutions of the machines and the nails are produced constantly.