and air/steam rings are manufactured by the process
of induction heating in Technical Collaboration with
premier Korean induction pipe-bending company, Sung
Il Machinery Industrial Company LTD (SIM), meeting diverse
high quality requirements in accordance with ASTM, API,
DIN, BS, ANSI, ASME PFI and other international technical
specifications. The Bending Unit is approved by EIL,
Shell Global and Saudi Aramco.
Oil & Gas Sector
– Onshore and Offshore Sub-Sea applications
Shipping and other
Induction Bending Machine
B Mc 1
B Mc 2
B Mc 3
Bending Radius (mm)
– 50 UpTo 14” Dia Pipe
– 36 for 26” – 36”
– 32 mm for 38” – 48”
Minimum wall thinning rate and ovality.
Precise bending radius and angle.
No pipe wrinkles.
Reduced oxidation or de-carbonization due to instantaneous
Lesser impurities or scratches on the inner surface.
Diverse bendings: square pipe, flat bar, I-beam,
H-beam, channel sash, etc.
Three-dimensional bendings without any welding.
Special heat treatment for stainless steel not
required due to prompt heating and water-cooling.
14” dia pipe – 5 – 50mm
– 36” dia pipe – 6 –
– 48” dia pipes – 8- 32mm
of Bending Machine
The Induction bending
plant is installed on base frame and pivot track. The
base frame supports pipe carriage and rolls. The radius
arm is mounted on pivot track assembly through main
pivot track. The pipe clamps are mounted on to the radius
arm and on to the base frame.
The push drive system is DC electric power motor /
gear box. The control system is PLC, which provides
accurate and infinitely variable speed control and thereby
accurate bending angle control. Induction power pack
is of 350 KW for elevating the temperature up to 1050°C.
The induction coil mounting / setting is in 3-plane
pipe having positive thickness is kept on the pipe carriage
and clamped hydraulically on the rear carriage. The
induction coil and cooling coils are mounted around
The concentricity of induction coil is adjusted with
3-plane movement to assure the uniform heating by induction.
The radius of bend is fixed by adjusting the radius
arm and front clamp. The pointer is also set to the
correct degree. The pipe is pushed forward slowly so
as to clamp rigidly with front clamp. The pipe is marked
for arc length and initial thickness / hardness measurements.
Before starting the bending operations the hydraulic
pressure / water level / flow switches etc. are checked.
The pipe is now heated by induction to the temp of 815
- 995 C. By pushing the pipe by push clamp the bending
of the pipe is started slowly and carried out at speed
of 10 - 40 mm/min.
The bending operation is stopped at the specified angle
of bend and predetermined arc length. The bend is removed
from the machine and kept on an inspection platform
for measurement of tolerances.
materials for induction bends
Carbon Steel (Seamless/Weld Seam)
High Chrome Steel
High Nickle High Chrome Steel
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