Domestic Metallurgical Equipment Upgrade: How Custom Tension Leveling & Shearing Machines Optimize Strip Production Efficiency

2026-07-11 17:11:29

In global metal rolling and processing factories, recurring production bottlenecks continuously restrict output and finished product quality: strip residual stress causes furnace breakage during galvanizing and annealing; uneven oxide scale cracking leads to incomplete pickling; rough trimming edges create excessive burrs that reduce silicon steel magnetic performance; and long lead times for imported Roll cassettes and bearing spare parts trigger frequent unplanned downtime.

As a high-tech subsidiary of listed firm Chaozhuo Aviation Technology (688237), Xiangyang Jiade Machinery specializes in custom-designed metal strip finishing equipment and matching Precision Spare parts. Integrating nearly 30 years of metallurgical manufacturing experience, the company delivers tailor-made leveling, shearing, coating and rolling mill auxiliary equipment, fully realizing domestic substitution of expensive imported machinery for steel, aluminum alloy, titanium and silicon steel manufacturers worldwide.

1. Customized Tension Leveling & Descaling Equipment Targets Diverse Strip Material Demands

Strip flatness defects including edge waves, center buckles, coil set and camber are the most common pain points across all cold and hot rolling lines. Standard single-spec Tension Levelers cannot match the unique processing requirements of thin ultra-hard steel, thick carbon steel and wide aluminum strips, while Jiade’s customizable tension leveling product line solves this mismatch perfectly.

Steel Coil Tension Levelers

Available in dry/wet two-bend one/two-level and three-bend two-level structures, applicable strip thickness ranges from 0.15mm to 6.0mm with a maximum running speed of 750m/min. The precise elongation control system eliminates internal residual stress to avoid strip snapping inside continuous galvanizing furnaces, achieving zero break stable operation.

Specialized Scale breaker for Pickling Lines

Two mainstream structures: vertical movable roll cassette and swing upper roll cassette. Designed for 0.7–12.7mm thick carbon steel and stainless steel strips, the mechanical descaling system improves oxide scale breaking efficiency by over 35%. The sealed waterproof roll cassette prevents cooling water erosion and extends bearing service life, greatly improving pickling consistency.

23-Roll & Multi-Roll Precision Straighteners

For ultra-thin hard-state stainless steel, copper and titanium strips as thin as 0.02mm, the 23-Roll tension leveler adopts adjustable lower roll crown to correct local strip deformation, controlling finished flatness within 3–5I. The full series Multi-roll Straighteners cover 5/7/9/11/13/17/19/23 roller configurations, customized for wide aluminum sheets and high-strength AHSS thin plates to meet strict flatness tolerance standards.

2. Turret Side Trimming & Flying Shear System: Burr-Free High-Speed Continuous Shearing

Poor trimming accuracy and frequent blade replacement drastically lower overall line efficiency, especially for silicon steel and coated galvanized strips that demand scratch-free edge surfaces. Jiade’s integrated shearing system includes turret Side Trimmers, multi-type scrap choppers and drum flying shears, covering all continuous cutting scenarios.

Turret Double-Head Side Trimmer

Compared with traditional single-blade trimmers, the turret structure supports offline standby cutter heads and online rapid switching within 5 minutes without stopping the entire production line. Strict precision control guarantees blade end face runout ≤0.003mm and trimming width tolerance within ±0.2mm, suitable for high-speed lines up to 700m/min. Supporting auxiliary equipment includes mobile double scrap choppers, scrap coil rewinders and belt conveyors to realize automatic scrap collection without manual intervention.

Drum Flying Shear for Dynamic Cut-to-Length

Installed at cold mill outlets for dynamic strip splitting, sampling and waste cutting. The adjustable blade clearance mechanism fits strips from 0.3mm to 4.0mm with maximum tensile strength up to 1180MPa. Tight control of drum axial movement and blade parallelism avoids uneven cutting and strip surface damage during high-speed operation.

3. Functional Coating Machines for Galvanized & Electrical Silicon Steel Lines

Uniform surface coating directly determines the anti-corrosion lifespan of galvanized steel and low core loss performance of silicon steel products. Jiade independently develops two core roller coater models customized for mainstream post-treatment production lines.

1. Galvanized Line Roller Coater: Coats passivation and fingerprint-resistant liquid on single or double sides of galvanized strips, forming a dense protective film to strengthen corrosion resistance. It adapts to 0.2–4.0mm thick strips with a maximum line speed of 280m/min, widely deployed on hot-dip galvanizing and color coating lines.

2. silicon steel coating machine: Matched with CA continuous annealing coating lines, DCL decarburization annealing lines and FCL hot leveling coating lines. Stable coating thickness eliminates uneven insulating film, effectively reducing eddy current loss and stabilizing magnetic permeability of finished silicon steel sheets.

4. One-Stop Precision Spare Parts & Rolling Mill Auxiliary Equipment

Many metallurgical factories face high costs and long delivery cycles when purchasing imported roll cassettes, bearings and Couplings. Xiangyang Jiade’s complete precision spare parts portfolio fully replaces imported components with equivalent performance and shorter lead times.

• Roll Cassettes: Independent R&D tension leveler, scale breaker, multi-roll leveler and straightener roll cassettes, absorbing core technologies from Siemens-VAI, Danieli and Mitsubishi Hitachi for high rigidity and long service life.

• Non-standard bearings & back-up rolls: Custom fracturing pump bearings for petroleum equipment, series back-up rolls (24.5–260mm) and rotary joints for high-speed leveling machines, resistant to heavy load and water erosion.

• Transmission Couplings: Ball cage constant velocity couplings with torque ranging from 380 N·m to 1,000,000 N·m and working angles up to 75°, plus drum spline couplings for low-speed high-torque narrow installation spaces.

• Work & intermediate rolls: Custom diameter rolls from Φ9mm to Φ630mm, small-diameter roll design avoids surface indentation while improving strip flatness correction accuracy.

• Multi-High Mill Auxiliaries: 18-roll side roller assemblies, 20-roll main shaft saddles and oil removal devices to eliminate residual rolling oil and prevent downstream annealing defects.

5. All-Round Service & Technical Strength Support Custom Manufacturing

1. Professional R&D Team: Over 30 dedicated technical engineers with nearly 30 years of metallurgical industry experience, capable of analyzing material characteristics and designing exclusive equipment solutions for special alloy strips.

2. Complete Manufacturing Capacity: More than 100 sets of advanced processing equipment form a full production chain, supporting full-process machining, assembly and testing to guarantee stable product quality.

3. Authoritative Quality Certification: ISO9001, ISO14001 and ISO45001 certified, full-process quality inspection with dedicated testing personnel to control every production link.

4. In-Depth Industry Cooperation: Long-term joint design collaboration with WISDRI, CISDI, China Iron & Steel Research Institute and CHINALCO, continuously upgrading equipment performance to align with international standards.

5. Global Full-Link Service: From customized drawing design, production manufacturing, on-site installation guidance and staff training to turnkey commissioning and long-term technical consultation. Fast spare parts delivery ensures minimal production downtime for global clients across Asia, Europe and North America.

Conclusion

Against the backdrop of global manufacturing cost reduction and domestic substitution trends, customized metal strip finishing equipment becomes a core competitive advantage for metallurgical enterprises. Xiangyang Jiade Machinery continues to iterate tension levelers, scale breakers, trimming systems and coating machines, providing cost-effective, high-stability custom Metallurgical Equipment and supporting spare parts for steel, aluminum and silicon steel manufacturers worldwide.