Twenty-High Rolling Mill

The China Twenty-High Rolling Mill from GRM Rolling Mill is a high-precision rolling mill used for cold rolling metal sheets and ultra-thin strips. It is mainly used for the production of thin and ultra-thin strips such as cold-rolled stainless steel, silicon steel, high-strength metals and alloys. It almost undertakes 96% of the world's stainless steel production and is widely used in industries such as automobiles, home appliances, electronics, aerospace, etc. that require high precision and quality of sheet metal.

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Product Description

China GRM Twenty-High Rolling Mill offered by GRM Rolling Mill, a Roan clamp type mill, which adopts advanced hydraulic automatic control technology and combined with roller control to achieve excellent plate shape and thickness accuracy. The equipment can flexibly switch between 20-roll and 8-roll modes, suitable for precision rolling of materials of different thicknesses. Its high efficiency, energy saving and easy operation make it an ideal choice for high-end metal processing industry.

Industry applications

Precision rolling of stainless steel, carbon steel, copper, aluminum and other metal sheets
Aerospace High-precision alloy sheet production
Electronic manufacturing Ultra-thin metal material production
New energy Lithium battery foil, photovoltaic industry precision strip manufacturing
Automobile manufacturing Lightweight metal material processing

Applications

Field	Scenarios
Precision stainless steel manufacturing	Mirror stainless steel strip (Ra≤0.01μm): high-end home appliance panels, elevator decorative panels
New energy material processing	Mirror stainless steel strip (Ra≤0.01μm): high-end home appliance panels, elevator decorative panels
Aerospace	Nickel-based alloy sheet for aircraft engines
Cutting-edge material development	Metallic layered composites, nanocrystalline ribbons

Technical Specifications

project	Specifications
Rolling mill type	Twenty-high hydraulic rolling mill
Working roll diameter	Eight roller mode: Φ68mm
Working roll diameter	Twenty roller mode: Φ30mm
Feed thickness	1.2mm
Minimum finished product thickness	0.03mm
Maximum bandwidth	280mm
Rolling speed	0-120m/min
Main motor power	90KW (AC frequency conversion + reducer)
High tension motor	75KWx2 sets (1:18 reduction)
Small tension motor	7.5KWx2 sets (1:3.54/1:11.1 reduction)

Note: The above parameters may change due to continuous product improvements; please refer to each product’s manual for exact specifications.

Core advantages

Ultra-thin rolling: The minimum thickness of our Twenty-High Rolling Mill can reach 0.001mm (1μm)
Ultra-high precision: servo hydraulic AGC + X-ray/contact thickness gauge, thickness accuracy up to ±0.002mm
Flexible rolling: twenty rollers/eight rollers can be switched to meet different thickness requirements
Small footprint, easy to install: compact structure design, easy to operate, can be operated by one person independently

Why choose us?

Innovative technology: industry-leading hydraulic AGC + intelligent constant tension control to ensure ultimate precision
High cost performance: lower energy consumption and more convenient maintenance compared to traditional twenty-high mills
High production efficiency: Our Twenty-High Rolling Mill has large single press volume, reducing the total number of passes and annealing times, and improving productivity
Safe and stable: full AC frequency conversion control, low noise, with multiple safety protections

Powering Tomorrow’s Manufacturing – GRM Mills Redefine Precision Rolling

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