Dual Independent Servo Double-Side Labeling Machine One-Side Two-Side Switchable with SICK Sensor ±1mm Accuracy

The ZRT-400B Dual Independent Servo Double-Side Labeling Machine delivers exceptional versatility and precision for single-sided and double-sided labeling applications on flat, cylindrical, and oval products. Engineered with two fully independent servo-driven labeling heads, this machine enables seamless switching between one-side and two-side labeling modes without mechanical reconfiguration. Each labeling head operates autonomously with its own LEADSHINE servo motor, SICK photoelectric sensor, and adjustable positioning guide, ensuring perfect label alignment across both sides of every product. The adjustable width conveyor with quick-release guides accommodates products from 20mm to 200mm in thickness, making the ZRT-400B an unmatched solution for manufacturers handling diverse product portfolios across packaging, electronics, cosmetics, pharmaceutical, and daily consumer goods industries. Its stainless steel and aluminum alloy construction ensures durability while maintaining a clean, professional appearance suitable for GMP-compliant production environments.

• Dual Independent Servo Labeling Heads: Each labeling head is driven by its own LEADSHINE servo motor with independent speed and position control, delivering synchronized double-side labeling with precise registration on both sides simultaneously.
• One-Side and Two-Side Switchable: A unique operating mode selector allows instant switching between single-side and double-side labeling through the touch screen interface, eliminating downtime for mechanical adjustments and maximizing production flexibility.
• Multi-Angle Adjustable Label Heads: Each label head features XYZ-axis adjustment with tilt capability, enabling optimized label application angles for flat surfaces, curved profiles, and irregular product geometries across a wide range of packaging formats.
• German SICK Sensor Precision: Dual SICK photoelectric sensors provide independent label gap detection for each head, ensuring accurate label placement with ±1mm consistency regardless of label material type including transparent, metallic, and matte substrates.
• Adjustable Width Conveyor System: The conveyor features quick-release handwheel width adjustment from 20mm to 200mm, with RUIDA inverter-driven variable speed control that synchronizes perfectly with both labeling heads for smooth product handling.
• Intelligent Touch Screen Control: WECON HMI with 7-inch color touch screen provides independent parameter control for each labeling head, recipe memory for up to 50 product formats, production counting, and diagnostic alerts with troubleshooting guidance.
• Brush and Sponge Pressing System: Each labeling station incorporates a dual-stage pressing mechanism combining a brush roller for initial label application and a sponge wheel for final smoothing, ensuring bubble-free and wrinkle-free label adhesion on every product.
• Stainless Steel and Aluminum Construction: The main frame is built from SS304 stainless steel with anodized aluminum alloy structural components, providing excellent corrosion resistance, easy cleaning, and a professional appearance that meets international hygiene standards.

The ZRT-400B double-side labeling machine is designed for manufacturers requiring precise dual-side label application across diverse product categories. In electronics manufacturing, it applies serial number labels and regulatory compliance stickers to power adapters, router enclosures, and electronic device housings. Cosmetic packaging operations utilize the machine for front-and-back labeling of lotion bottles, cream jars, and perfume boxes with wrinkle-free precision. Pharmaceutical companies rely on the dual-head configuration for simultaneous application of product information labels and barcode tracking labels on medicine cartons. The food packaging industry uses the ZRT-400B for front and back labeling of sauce bottles, condiment jars, and snack packaging boxes. Daily consumer goods manufacturers benefit from the rapid mode switching capability for mixed production runs of detergent bottles, cleaning spray containers, and personal care products. Optional upgrades include thermal transfer overprinters for real-time date and batch coding, transparent label sensor kits, and extended conveyor sections for integration with upstream filling or capping equipment.

Every ZRT-400B unit is securely packed in a fumigated export-grade wooden crate with customized foam inserts and vacuum-sealed moisture barrier protection for all electronic components and precision mechanical assemblies. Prior to shipment, each machine undergoes a comprehensive 72-hour continuous testing protocol verifying double-side labeling synchronization, sensor calibration accuracy, servo motor positioning repeatability, and conveyor tracking consistency across a range of product samples. Each shipment includes a full set of English-language documentation comprising an operation manual, electrical schematic diagrams, PLC programming guide, and maintenance schedule. A startup spare parts kit covering 12 months of wear components such as belts, rollers, and sensor accessories is included as standard. ZHIROBO provides complimentary remote installation support through live video guidance, with optional factory-trained engineer dispatch for on-site commissioning. The machine is backed by an 18-month comprehensive warranty, lifetime remote technical support, and a guaranteed 24-hour response time for spare parts inquiries with international courier delivery to major global destinations.