Mechanical Power Transmission products for Hot Strip Mill & Furnace Section

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Mechanical Power Transmission products for Hot Strip Mill & Furnace Section

Flexible Gear Couplings

High performance and easy in installation manufactured using fully automatic hobbing machine.

Roller Chain Couplings

Roller Chain Flexible Couplings are compact, long lasting flexible couplings, capable of transmitting relatively high torques with minimum of space consumption

Torque Limiter

Nu-Teck torque limiter is a protective device that limits torque transmitted in a drive system by slipping when torque demand exceeds a preset value as a result of shock loads, over loads, or machine jams.

Sprockets

Nu-Teck Sprocket Wheels are manufactured from quality materials. Teeth are hob-cut for correct tooth form, tooth thickness and profile.

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Mechanical Power Transmission Products for Hot Strip Mill & Furnace Section

HSM — Hot Strip Mill & Furnace Section

In a Hot Strip Mill (HSM) and the Furnace Section, the operational environment is significantly more brutal than in cold rolling. Components must withstand extreme thermal radiation, high-pressure water descaling, and massive impact loads as red-hot slabs are reduced into strips.

Here is a consolidated list of applications where our Nu-Teck Couplings' power transmission products — Gear, Grid, Tyre, Pin & Bush, and Brake Disc Couplings, along with Heavy-Duty Sprockets — are essential in these processing lines.

Power Transmission Products for Hot Strip Mill & Furnace Section

20 Applications in Hot Rolling & Furnace Sections

Application-wise coupling reference for all critical drive points across Hot Strip Mill and Furnace sections, grouped by process section

Application	Nu-Teck Couplings	Description

Furnace & Charging Section
Slab Charging Car	Tyre Couplings	Absorb the high-impact shock when 20-ton slabs are positioned for furnace entry.
Walking Beam Furnace Drive	Gear Couplings (Heavy-Duty)	Drive the eccentric shafts that walk slabs through the 1,200°C furnace.
Furnace Roller Table	Chain Couplings	Connect individual motors to the rollers inside or at the exit of the furnace, handling significant thermal expansion.
Pusher Mechanism	Gear Couplings (High-Torque)	Power the mechanical rams that push slabs into or out of the reheat furnace.
Combustion Air Blowers	Grid Couplings	Provide critical vibration damping for the high-speed fans supplying air to furnace burners.
Roughing & Descaling Section
High-Pressure Descaling Pumps	Gear / Grid Couplings	Drive the pumps that blast water at 200+ bar to remove scale from hot slabs.
Vertical Edger Drive	Gear Spindles (Custom)	Handle the massive torque required to squeeze the sides of the slab to control width.
Roughing Mill Main Drive	Gear Couplings (Largest)	Transmit thousands of kilonewtons of torque to break down the initial slab — the largest couplings in the plant.
Roughing Mill Screwdown	Brake Disc Couplings	Ensure the mill gap is locked instantly to maintain precise slab thickness.
Finishing Mill & Run-out Table
Finishing Stand Work Rolls	Telescopic Gear Spindles	Allow for the high speeds and high angles required as the strip thins and accelerates through each finishing stand.
Loopers (Inter-stand)	Pin & Bush Couplings	Provide the quick, dampened response needed for the arms that regulate strip tension between finishing stands.
Run-out Table (ROT) Rollers	Chain / Pin & Bush Couplings	Drive the hundreds of individual rollers that transport the red-hot strip to the coiler.
Laminar Cooling Pumps	Tyre Couplings	Connect motors to the pumps that spray water to achieve the desired metallurgical properties in the strip.
Coiling & Material Handling
Downcoiler Mandrel	Gear Couplings (Heavy-Duty)	Handle the sudden impact torque when the head of the hot strip first hits the mandrel.
Coiler Wrapper Rolls	Sprockets & Heavy Roller Chains	Actuate the arms that guide the hot strip into its first few wraps around the mandrel.
Coil Stripper Carriage	Gear Couplings	Drive the hydraulic or mechanical sleds that pull the finished 25-ton hot coil off the mandrel.
Coil Conveyor (Slat / Chain)	Sprockets & Double-Strand Chain	Move finished hot coils to the cooling yard — massive sprockets with double-strand heavy chains.
Pinch Roll Drives	Gear Couplings	Synchronize the rolls that grip the strip to feed it precisely into the coiler.
Crop Shear Drive	Brake Disc Couplings	Stop the massive flying shear blades instantly after cutting the tongue or tail of the strip.
Cooling Bed Shifters	Sprockets & Chains	Facilitate the lateral movement of plates or strips across the cooling beds.

Types of Customized Gear Couplings for Hot Mills

In the Hot Strip Mill, off-the-shelf is not an option. These customized gear couplings are engineered for heat and impact

Coupling / Product Type	Description & Purpose
Nu-Teck Heat-Resistant Gear Couplings	Feature specialized Viton or Metallic seals and high-temperature grease (Dropping point > 300°C) to prevent lubricant failure near the furnace or hot strip.
Nu-Teck High-Impact Gear Spindles	Built with Induction Hardened Gear Teeth (reaching 60 HRC) to survive the shock loading that occurs the moment a slab enters the rolls.
Nu-Teck Telescopic Spline Couplings	Allow for significant axial growth of the shafts caused by the extreme heat expansion of the mill rollers during operation.
Nu-Teck Shear Pin Gear Couplings	Act as a mechanical fuse in the Downcoiler to protect the primary gearbox if the hot strip jams or cobbles inside the machine.
Nu-Teck Brake Disc Gear Couplings	Combine a high-torque gear hub with a ventilated brake disc for rapid start-stop cycles in crop shear and screwdown applications.