Design & Construction

Drive system: Electro‑mechanical main drive with helical gearbox and VFD speed control ensures stable torque, smooth acceleration, and constant surface speed under load for a clean, skid‑free pass.
Backup support: Multi‑row backup bearings limit roll deflection on thicker or work‑hardened scrap, maintaining uniform correction across the strip width and preventing center sag that can induce edge waves.
Adjustment: Motorized top‑roll bank with digital position read‑outs uses wedge/jack or screw actuators, including left‑right independent crown compensation for precise, recipe‑driven penetration.
Frame: Stress‑relieved, heavy‑plate welded structure with deep cross‑members minimizes vibration to stabilize leveling forces and roll engagement over long duty cycles.
Controls: Operator panel or PLC/HMI provides speed setpoints, roll penetration set/recipe, load/current display, jog/auto, and fully interlocked E‑stops to streamline setup and ensure safety.

Precision penetration control: Encoder‑guided roll gap with crown compensation achieves true flatness by yielding the correct surface bands through thickness, minimizing residual stress across mixed gauges.
Surface protection: Fine‑finish, hardened rolls with optional chrome reduce print‑through on painted or coated scrap when paired with optimized penetration per material yield.
High rigidity: Reinforced frame and backup bearings resist roll bending so correction is uniform across width, improving downstream cutting and forming quality.
Low maintenance: Electro‑mechanical actuation, centralized lubrication, and sealed bearings are specified for dusty yards to extend service intervals and reduce total cost of ownership.

Key Features & Accessories

Performance‑driven productivity

VFD: Wide speed range with VFD covers thin to thick gauges; soft start and anti‑skid synchronization with pinch rolls maintain traction and surface quality.
Recipe memory: Save penetration, speed, and crown profiles to accelerate changeovers and preserve flatness consistency across material families.
Quality tools: Entry edge guides, exit leveling gauges, and inline flatness checks support repeatable results by verifying shape after springback.
Safety: Two‑hand jog, emergency rope along the strip path, interlocked guards, and overload/current protection reduce operational risk without slowing throughput.

Line integration: Add decoiler, loop control, servo feeder, flying or guillotine shear, and stacking table to create a cut‑to‑length line tailored to material mix and takt time.
Quick‑change cassette: Removable work‑roll cartridge shortens maintenance windows and enables fast roll‑set swaps for different thickness windows.
Roll finishes: Super‑finish/chrome rolls and polyurethane‑covered pinch rolls protect sensitive coatings and reduce cosmetic rework.
Automatic flatness control: Laser or roller feedback trims penetration dynamically to counter coil set and cross‑bow variation across and along the strip.

Swiveling pendant with speed knob: Penetration jog, crown left/right, forward/reverse, load display, and E‑stop; PLC/HMI enables recipes, alarms, and diagnostics.
Guided setup: On‑machine charts map thickness and yield strength to recommended penetration and speed, aligning with best‑practice leveling principles for shape defects.
Training provided: Commissioning, operator SOPs for variable scrap input, and maintenance best practices are supported by Monotech’s manufacturing and service capability.
Training & SOPs: On-site commissioning, safety sessions, operator/maintenance SOPs, and QA documentation templates ensure safe, consistent adoption.
Operator Ergonomics: Intuitive multilingual touch interface with simplified navigation reduces fatigue and error

Consistent flatness: Encoder‑controlled penetration and rigid backup deliver low residual bow and edge wave across mixed scrap streams.
Gentle on surfaces: Hardened, fine‑finish rolls and optional chrome limit print‑through on coated or rust‑treated sheets.
Efficient operation: Recipe recall, low‑maintenance electro‑mechanical actuators, and VFD drives reduce energy and changeover losses per ton.
Tailored solutions: Widths, roll finishes, quick‑change cassettes, and full line integration align with throughput targets and product mix.