Oil Duct Bonding Machine for Transformer Insulation

Product Introduction

The Oil Duct Bonding Machine for Transformer Insulation is a high-precision, turnkey production line engineered specifically for the electrical insulation sector to automate the manufacturing of transformer oil duct curtains (spacer strip curtains). Replacing manual labor with seamless automation, this machine integrates spacer strip straightening, feeding, paper unwinding, bottom roller gluing, precision pitch-adjustable mounting, and automated winding into a single continuous workflow.

Key Advantages & Engineering Highlights

• Multi-Patented Mechanical Reliability: Backed by 1 national invention patent (ZL 201710630435.8) and 5 utility model patents, ensuring proven mechanical stability, low failure rates, and long-term durability.
• Programmable Variable Pitch Control: Controlled by Siemens or Huichuan PLCs, allowing process engineers to easily configure single intervals or complex multi-variable pitch settings via the HMI touchscreen with a precision of ±0.5 mm.
• High Production Capacity: Delivers an impressive assembly speed of 50–100 pieces per minute (depending on strip length), significantly reducing labor costs and boosting throughput for transformer factories.
• Uniform Bottom Roller Gluing: Features a specialized bottom roller applicator that applies a precise adhesive layer without excess, securing pressboard spacer strips firmly onto base papers (0.05–0.5 mm thick).
• Comprehensive Safety & Monitoring: Equipped with full safety enclosures, automatic motor initialization, real-time interactive status monitoring, and automated fault diagnostic routines.

Core Equipment Modules

• Feeding & Sorting Mechanism: Auxiliary feeding and pusher modules designed to align and feed raw pressboard strips without jamming.
• Gluing & Mounting Station: Precision bottom roller gluing mechanism paired with single or dual-moving pressing mechanisms for strong adhesion.
• Unwinding & Winding System: Tension-controlled paper unwinding reels and automated winding units for finished oil duct curtains.
• Drying & Control Units: Built-in drying buffer zone and a centralized PLC control cabinet with an interactive touchscreen.

Technical Specifications

FAQ

1. What is the main application of this Oil Duct Bonding Machine for Transformer Insulation?

This machine is engineered to automatically bond pressboard spacer strips onto base paper rolls to form cooling “oil duct curtains” for transformer windings, replacing manual gluing with precise, high-speed automation.

2. Can this machine handle variable pitch spacing on the same paper strip?

Yes. The PLC control system (Siemens/Huichuan) allows operators to easily program both uniform pitch intervals and variable spacing patterns directly via the interactive touchscreen interface.

3. What are the dimensional limits and quality requirements for input spacer strips?

Input strips should have a length between 130 and 750 mm, a width of 4–12 mm (±0.3 mm), and a thickness of 3–10 mm (±0.2 mm)[cite: 17]. To avoid feeding jams, the strip warping ratio must stay below 0.0085 (e.g., maximum 2.55 mm deflection for a 300 mm strip).

4. What utilities and power requirements are needed for installation?

The machine requires a single-phase/three-phase electrical supply (6 kW total power) and a compressed air connection providing 5–6 bar pressure with a minimum flow rate of 35 L/min.

5. Is this Oil Duct Bonding Machine protected by official patents?

Yes. This equipment incorporates 1 national invention patent (ZL 201710630435.8) and 5 utility model patents, demonstrating proven innovation and engineering excellence.