slitting machine
1. Precision Slitting, Accurate Dimensional Control for Metal Sheets
2. Efficient Mass Production, Doubled Efficiency for Metal Sheet Processing
Machine Base: Adopts an integral welded structure with aging treatment to eliminate internal stress, featuring high rigidity and low vibration. It provides stable support for high-precision processing and ensures excellent long-term operation precision retention.
Uncoiler: Equipped with a hydraulic expanding reel suitable for coil inner diameters of Φ480-762mm and a maximum load capacity of 35T. Combined with a laser centering device and dynamic deviation correction system, it ensures stable and non-offset uncoiling, controlling slitting error within ±0.05mm—far exceeding the industry average of ±0.2mm.
Slitting Unit:
Arbor: Made of 42CrMo alloy steel with a diameter of over Φ225mm, runout ≤0.005mm, and minimal deflection;
Blades: Crafted from Cr12MoV or imported cemented carbide, with hardness HRC58-60. Support regrinding and reuse; combined with an optimized lubrication system, burr height can be controlled within 0.03-0.08mm;
Gap Adjustment: Automatic gap compensation technology for precise adaptation to shearing needs of materials with different thicknesses.
Recoiler: Constant tension winding system. The finished coil has an inner diameter of Φ508mm and an outer diameter ≤1900mm, with winding misalignment ≤1mm and tower deformation ≤2mm, ensuring neat coil shape.
Control System: PLC + touch screen human-machine interface, supporting parameter presetting, storage, and recall. Some high-end models can connect to MES systems for intelligent management.
Automatic Tool Change System: Adopts a patented auxiliary tool change system (Patent No.: CN119115622B), integrating robotic arms and intelligent monitoring functions. It realizes automatic tool replacement and status early warning, reducing tool change time from the traditional 30 minutes to within 5 minutes, greatly improving production continuity;
High-Speed Stable Transmission: Driven by servo motors with intelligent tension control, the maximum slitting speed can reach 300m/min, enabling 24/7 trouble-free operation and adapting to efficient processing of materials with thickness 0.1mm-20mm;
Modular Design: Supports quick replacement of arbors and pressure rollers, adapting to multi-specification processing needs with width range 20mm-2000mm. The equipment footprint is reduced by 40% compared with traditional models.
III. Key Technical Specifications
Category | Specific Parameters (Standard for mainstream models, customizable) |
Processed Materials | Carbon steel, stainless steel, aluminum alloy, copper, color-coated sheet, galvanized sheet, silicon steel sheet (oriented/non-oriented), high-strength steel and other metal materials |
Processing Range | Thickness: 0.1-20mm; Width: 120-2500mm; Minimum slitting width: 5-40mm (adjustable according to thickness) |
Slitting Precision | Width precision: ±0.05-0.2mm; Longitudinal straightness: ≤0.1mm/m; Burr height: ≤0.03-0.08mm (or ≤5% of material thickness) |
Production Efficiency | Slitting speed: 10-300m/min (stepless speed regulation); Number of slits: Up to 55 strips (when thickness ＜0.5mm); Material changeover time: ≤5 minutes |
Equipment Configuration | Total power: 55-220KW (high-efficiency energy-saving motor); Feeding method: Automatic feeding trolley; Winding method: Constant tension winding; Auxiliary functions: Scrap chopper, waste cart, interleaving paper device |
Overall Dimensions | Typical model: Approximately 26m×8m (customizable according to workshop space); Weight: 15-80T (varies by specification) |
IV. Working Process & Operability
Feeding: The automatic feeding trolley transports the metal coil to the uncoiler, and the hydraulic expanding reel fixes the coil automatically;
Pretreatment: The coil is centered by the guiding device, tension-adjusted, and the laser deviation correction system corrects offset in real time;
Slitting: According to the preset width, the arbor rotates at high speed for slitting, and the scrap chopper processes the waste edge synchronously;
Winding: The slit narrow strips are neatly wound under constant tension control to avoid wrinkling and slipping;
Unloading: After the finished coil is completed, the unloading trolley transports it to the designated area automatically, with no manual intervention throughout the process.
V. Common Faults & Solutions
Fault Phenomenon | Causes | Solutions |
Unstable strip width | Loose tools, arbor gap deviation | Stop the machine to fasten tools and recalibrate arbor gap |
Excessive burrs | Worn tool edges, improper gap/overlap | Regrind or replace tools, adjust tool gap and overlap, optimize lubrication system |
Strip bending (excessive straightness error) | Overly tight guiding pressure plate, uneven drive rollers | Adjust the pressure of the pressure plate and calibrate the parallelism of drive rollers |
Uneven winding (end face deviation ＞2mm) | Non-parallel generatrix between recoiler and guiding rollers, coil insertion offset | Adjust the position of guiding rollers to ensure parallelism and insert the coil straight into the recoiler clamping groove |
High operation vibration | Loose machine base fixation, uneven material thickness | Reinforce the fixing bolts of the machine base, check material thickness and adjust tension parameters |
VI.Longitudinal Shearing Line Application Scope & Practical Cases
Automotive Industry: Slitting of body panels, battery casings, and component blanks;
New Energy Industry: Precision processing of battery pole pieces and photovoltaic bracket materials;
Home Appliance Industry: Processing of refrigerator/air conditioner casings and internal structural parts;
Construction Industry: Slitting of color steel plates, aluminum gussets, and strips for steel structures;
Electronic Industry: Slitting of narrow strips for electronic components and precision instruments;
Transformer Industry: Slitting of silicon steel sheets (adapting to oriented/non-oriented silicon steel).
New Energy Vehicle Battery Casing Enterprise: After introducing high-precision slitting machines, the burr of aluminum strips was reduced from 0.3mm to 0.08mm, the qualified rate of stamping processes increased from 85% to 98%, and the annual rework cost was saved by over 2 million RMB;
Large-Scale Steel Structure Enterprise: Slitting speed increased from 120m/min to 220m/min, single-shift output increased by 83%, and equipment footprint was reduced by 40%, significantly lowering site costs;
Transformer Manufacturing Enterprise: The slitting straightness of silicon steel sheets was controlled within 0.1mm/m, lamination efficiency increased by 30%, and transformer iron loss decreased by 5%.
Support customization of tool sets and transmission systems according to processed materials (e.g., high-strength steel, ultra-thin strips);
Adjustable equipment width, load capacity, slitting precision and other parameters to adapt to special processing scenarios;
Provide non-standard unit design (e.g., slitting and leveling combined unit) to meet integrated processing needs.
Offer one-stop services including equipment installation, commissioning, and operation training;
1-3 years warranty for core components, with lifelong maintenance technical support and spare parts supply;
Overseas market coverage including Russia, India, Australia and other countries, providing cross-border technical services.
