National Cutting Tools has emerged as a dependent entity to look for technically upgraded Bar Threading Machine in India. HSS Tangential Chasers are used as cutters. Bar remains stationery and Die Head rotates. BSP, BSPT, NPT, UNF, UNC, BSW, Acme Threads can be cut on this machine depending upon the type of Chasers. The machine mainly consists the following:-
Design : The National Cutting Tool Bar threading machines are designed to produce quality threads within the tolerance for which they were intended.
Head Stock : A heavy duty geared Head Box is of best quality casting providing support to the spindle bearings. The box is of gear type, lubricated, and fitted with three extra heavy duty bearings.
The Bed : The bed is pillar type having two pillars made of best quality steel nicely finished & duly hard chrome plated in the most modern hard chrome plating unit.
The Saddle : The Saddle is fitted on two pillars very precisely. It runs on pillars very smoothly and accurately to the Head Stock alignment.
The Apron : The apron gives movement to the saddle with head transfer along with pillars through steel rack and pinion arrangements. It's all gears are made of best quality steel.
Vice Jaws : The vice jaws made from the best quality alloy steel are fitted on the saddle well aligned with the head stock center fitted in a heavy duty box type vice. The jaws are heat treated. The movements of jaws are controlled by a screw on the saddle.
Standard Specification of NCT Bar Threading Machines
|Model Super Deluxe||3/8" To 1 .1/2"||1/2" To 2.1/2|
|Saddle Movement||11''||10'' to 12''|
|Spindle Speed Range||32-54||54-85|
|Number of Spindle Speed||2||2|
|Threading Capacity||3/8'' to 1.1/2''||1/2" to 2.1/2"|
|Production per Hour||60 to 80||45 to 80|
|H.P. Required||3 H.P. 960 RPM||7.5 H.P.960 RPM|
|Automatic Leading Cut off||As per demand||As per demand|
|Space Required||24'' x 65''||42" x 65"|