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Circular Thread
Rolls
MPTPL manufactures Circular Thread
Rolls for Production and Precision Thread rolling of all types of
fasteners and components. These dies are made by Thread Grinding
Process. MPT Circular Rolls are generally made from selected Cold
Work Tool Steel and also in High Speed Steel grades. Circular
Thread Rolls are usually made in Two Piece Sets and also in Three
Piece Sets for Rolling of special components and hollow pipes etc.
as per requirement.
MPT Circular Rolls are manufactured
for both types – 1.In Feed (Plunge Feed) 2.Thru
Feed
In-feed Circular Rolls: - In this
rolling operation, machine spindles are set at zero degrees. The
part does not feed through the dies. The length of thread rolled
dies is limited by the width of Dies. These Dies are always
HELICAL.
Thru-Feed Circular Rolls :-In this
rolling operation Machines spindles are NORMALLY set to an angle
other than ZERO. The workpiece feeds through the dies. The LENGTH
of the THREAD produced is UNLIMITED. Angle of Entry & Exit can
also be provided in THRU-Feed Circular Rolls upon request.
MPT Circular Thread Rolls are made
upto 250 mm Diameter and Width upto 300 mm for Thread Standards as
mentioned below:
THREAD STANDARDS
PITCH
RANGE
METRICS
0.8-5.0 mm
BRITISH 4TPI-32TPI
UNIFIED 4TPI-32TPI
ACME and other rollable special
forms can also be made as per specification.
Circular Thread Rolls can be made
for LEFT and RIGHT Hand Threads. Rolls can also be supplied with
Radiused Root Runout (RRO).
MPT ,Circular Thread Rolls are also
offered in two Qualities, Regular Quality and Premium Quality.
Regular Quality Rolls are most
selling thread rolls and have general thread rolling application.
Premium Quality Rolls are specially
toughened Rolls which have high hardness but also high toughness.
These Thread rolls are well accepted in Stainless steel fasteners
making industries and also used to roll Hardened materials or
fasteners after heat-treatment.
INFORMATION REQUIRED FOR ORDERING
CIRCULAR THREAD ROLLING DIES:
1.
Roll’s Outer Diameter, Bore,
Face Width and Keyway Size
2.
Type of Dies-
In-feed (Plunge-Feed) or Thru-Feed
3.
Threading-Diameter
and Thread Pitch along Thread standard of Fastener to be Rolled
4.
QUALITY
-Regular for
General Thread Rolling and Premium for Stainless Steel and Hard
material rolling.
5.
Angle Of Entry & Exit-
For Thru Feed Rolls
6.
Any Special Operation-
Radiused Run out Grinding, Chamfer angle other than standard 30
deg, etc.
7.DO
MENTION THE COMPONENT HARDNESS WHILE ORDERING FOR ROLLS FOR AHT
OPERATION.
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