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HOME >> PRODUCTS >>Coil Loading & Uncoil >> CNC Sheet Metal Leveller | Precision Coil Straightening Machine for Transformer & Electrical Industry
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CNC Sheet Metal Leveller | Precision Coil Straightening Machine for Transformer & Electrical Industry

This precision leveller squeezes uneven metal sheets/strips through upper and lower work rolls to achieve superior flatness. Typically configured with 4-over-5 or 3-over-4 roll arrangements, it includes front and rear transfer rollers for smooth material flow. A top-mounted handle allows fine adjustment of leveling thickness precision. Engineered for the electrical industry, it ensures flat surfaces for transformer manufacturing, switchgear panels, and busbar processing, reducing material waste and improving press productivity.

Key Highlights:

  • Multi-Roller Design: 4-up/5-down or 3-up/4-down configuration for optimal flattening.

  • Fine Adjustment: Manual top handle for precise thickness/flatness calibration.

  • Smooth Conveying: Equipped with front & rear transfer rollers to protect material surface.

  • Industrial Durability: Heavy-duty welded frame, chrome-plated rollers, suitable for steel, aluminum, copper.

  • Industry Focus: Perfect for transformer laminations, busbars, and electrical cabinet sheets.


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Product Description

1. Core Advantages & Features

① Effective Multi-Roller Leveling

The machine uses upper and lower rolls to extrude metal strips/sheets, eliminating waves, curls, and internal stress. Common roll arrangements (4-over-5 or 3-over-4) ensure progressive straightening.

② Precision Thickness Control

A handle on the upper part allows fine-tuning of the roll gap, ensuring high precision in leveling thickness. This adapts to varying material thicknesses (mild steel, stainless, aluminum, copper).

③ Seamless Material Flow

Front and rear transfer rollers support the coil/plate during entry and exit, preventing surface scratches and ensuring stable feeding into subsequent punching/bending machines.

④ Built for Electrical Manufacturing

Designed to meet the strict flatness requirements of transformer cores, busbars, and electrical enclosures. Integrates easily with decoilers, feeders, and stamping presses.

2. Key Technical Parameters (Reference / Customizable)

Parameter

Specification (Typical Range)

Machine Type

Sheet Metal Leveller / Coil Straightener

Roll Arrangement

4-Up / 5-Down (or 3-Up / 4-Down)

Material

Cold/Hot Rolled Steel, Stainless Steel, Aluminum, Copper

Material Width

200 – 1600 mm (Customizable)

Material Thickness

0.3 – 6.0 mm (Depends on width/rolls)

Roll Diameter

Ø40 – Ø120 mm (Chrome Plated)

Leveling Speed

0 – 20 m/min (Adjustable)

Adjustment

Manual Handle (Top) + Digital Gap Display (Optional)

Transfer Rollers

Front & Rear Included

Main Power

3.7 – 11 kW (Variable)

Application

Transformer Laminations, Busbars, Panels

3. Structural Details

  • Roll System: High-hardness alloy rolls, precision ground and chrome plated. Multiple rolls ensure gradual correction.

  • Frame: Heavy welded steel base for vibration damping and long-term accuracy.

  • Control: Simple manual adjustment with optional NC servo integration for automated lines.

  • Compatibility: Works standalone or as part of a 3-in-1 Decoiler-Straightener-Feeder system.

4. Application Scope

  • Transformer Industry: Silicon steel sheet straightening, core lamination prep.

  • Busbar Processing: Pre-leveling before punching/bending.

  • Switchgear & Enclosures: Flat sheets for electrical cabinets.

  • General Stamping: Pre-straightening for press lines (automotive, hardware).

5. Manufacturer & Service (YIBO Machinery)

  • Experience: 23+ years, ISO9001:2020, CE/SGS/BV certified. Top 3 in Chinese electrical equipment, 85%+ market share.

  • Clients: CASC, CRRC, ABB, DELIXI, EATON, RITZ, TENGEN, Russia Military Enterprise.

  • Warranty: 12 months (from Acceptance Report, max 14 months from delivery).

  • Delivery: ~90 working days after advance.

  • Payment: L/C, T/T, Western Union.

  • Support: Optional overseas installation & training, 24-hour response, video guidance.

→ Contact our engineering team for custom width/thickness specifications, roll arrangement selection, or factory demonstration.


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18# North Road Anyuan, Economic& Tech.Development Zone, Pingxiang City, Jiangxi Proviince China.

yibomachinery@163.com

info@yibowindingmachine.com

0086  15979221627

0086 18967276177

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