Guangdong Quanqi Machinery & Equipment Co., Ltd.

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Support roll


The material is 40Cr.


Product Details


The material is 40Cr, with a hardness of HRC45~50.


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Product Applications


Specialty Metals & Composite Materials Processing

Aerospace components, medical devices, and chemical container materials.

Titanium alloys, nickel-based alloys, and composite metal plates—highly complex machining is performed using blades made from special materials (such as cemented carbides and ceramic coatings) and heavy-duty leveling machines.

Precision Electronics AndElectrical Appliances

Transformer core, motor stator and rotor laminations, heat sinks, conductive connectors.

Silicon steel sheets, electrolytic copper strips, and alloy foils → Leveling machine (to relieve internal stress and ensure electromagnetic performance) → Slitting machine (for ultra-precise edge trimming with no burrs) → Flying shear (for fixed-length cutting)

New Energy Applications

Wind power: Thick steel plates—after being leveled—are used for the manufacture of tower sections and components.

Lithium batteries: Ultra-thin copper and aluminum foils are slit with extremely high precision by slitting machines—this is the core process. Leveling machines and flying shear machines may be used in the processing of casing materials. Photovoltaics: Aluminum frame profiles are rolled → leveled → slit → then sheared into flying shear mode to produce frame segments.

Automotive & Auto Parts Manufacturing

Body panels (doors, hoods), structural components (bumpers, chassis parts), seat frames, etc.

High-strength steel and aluminum alloy coils → Leveling machine (for precision leveling, critical for stamping) → Slitting machine (provides coil stock of specific widths for various parts such as door inner panels and longitudinal beams) → Flying shear (supplies fixed-length sheet metal for large-scale stamping lines).

Architecture & Building Materials Industry

Steel structural roofing/wall panels, curtain wall panels, and ceiling profiles.

Color-coated steel sheet, aluminum-magnesium-manganese coil, stainless steel coil → Leveling machine (corrects edge waviness) → Slitting machine (cuts into widths required for roof panels and wall panels) → Flying shear machine (cuts to fixed lengths for on-site installation)

Home Appliance Housing & Component Manufacturing

The outer shells and internal structural components of refrigerators, washing machines, air conditioners, and microwave ovens.

Cold-rolled steel sheet, galvanized sheet, and color-coated coil → Leveling machine (ensures a smooth and aesthetically pleasing surface) → Slitting machine (cuts into strips of varying widths for refrigerator door panels, side panels, and other components) → Flying shear (cuts the sheets into specified lengths) → Stamping/bending.

Company Advantages


Factory-Direct Supply of Equipment & Tooling Accessories

Guangdong Quanqi specializes in slitting machines and flying shear machines, and offers core products including disc blades from Nanjing Chenran, as well as a comprehensive range of cross-cutting blades and accessories, thereby building a full-industry-chain product system.

Core Technical Specifications

Our full-suite of high-end machining centers ensures the precise manufacturing and assembly of every equipment component. With mature production processes and precision grinding machines, we produce highly accurate disc blades that meet the cutting requirements for various types of sheet materials!

Extensive Production Experience

Quanqi’s 20,000-square-meter production base; Chenran’s 15 years of industry experience—both companies boast mature production systems.

Market & Customer Recognition

Chenran boasts a customer loyalty rate of 92% and collaborates with renowned companies such as Foxconn and Hisense. Quanqi’s products are exported worldwide, and Chenran’s market coverage spans multiple regions including China, Southeast Asia, and Europe.

Professional Team & Responsive Service

Quanqi boasts a professional technical and production team of over 250 members, offering 24-hour emergency services (with a 12-hour response time within the province); Chenran in the Pearl River Delta provides rapid response within 2 hours, ensuring end-to-end service support.

Customer inspection


Quanqi Machinery boasts a modern production base covering 20,000 square meters, equipped with multiple imported CNC machining centers. Key components, such as load-bearing frames, undergo tempering and reprocessing to ensure superior durability. Gears are precision-machined through hobbing, gear grinding, and nitriding processes, thereby optimizing equipment lifespan and performance right from the manufacturing stage. In terms of personnel, our team comprises 15 core designers, 25 senior fitters, 20 specialized installation and commissioning technicians, and over 250 highly skilled technical and production staff, providing robust human resources support for the entire production process.

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Patent Certificate


ISO Quality Management Certification Certificate

ISO Quality Management Certification Certificate

ISO 45001 Occupational Health and Safety Management System Certification Certificate

ISO 45001 Occupational Health and Safety Management System Certification Certificate

ISO 14001 Environmental Management System Certification Certificate

ISO 14001 Environmental Management System Certification Certificate

CE certificate

CE certificate

Production workshop


Machining center

Machining center

Machining center

Machining center

Machining center

Machining center

Machining center

Machining center

Machining center

Machining center

Machining center

Machining center

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