Product Introduction
Spring Resistors are innovative components that combine a spring structure with a wire-wound process. Dynamic resistance adjustment is achieved through the geometric deformation of the spiral conductor when it is compressed or stretched, while the wire-wound construction optimizes heat dissipation. Designed for industrial applications that involve frequent starting and stopping, short-term overloads, and precise braking, these resistors are widely used in lifting equipment, elevators, CNC machine tools, and new energy testing equipment. They effectively address the challenges of traditional resistors-such as overheating, short lifespan, and low adjustment accuracy-in dynamic operating conditions.
Product Picture
Core Advantages
Innovative Structural Design: Combination of a Spring and Wire-Wound Element
Spring-Based Adjustment:
The conductor is a helical spring. Compression or tension changes the turn spacing (L) and effective cross-sectional area (S), dynamically adjusting the resistance value (R = ρL/S).
Adjustment Range: 0.1Ω to 1000Ω
Response Time: ≤ 5ms
Linearity Error: ≤ ±2%
Wire-Wound Process:
The spring is precision-wound with resistance wire. This process significantly increases the surface area for heat dissipation. The gaps between the windings create a natural airflow channel, dramatically improving convective cooling efficiency.
Enhanced Heat Dissipation: Provides 2.5 times the surface area of traditional resistors, reducing operating temperature by up to 40%.
production equipment
Installation and Usage Guide
1. Installation Specifications
Mechanical Installation:
Mount spring-wound resistors vertically. A horizontal orientation may cause the conductor to deform under its own weight, compromising resistance accuracy.
The mounting bracket must be sufficiently rigid. Resistance deviation under vibrational conditions must not exceed ±1%.
Electrical Wiring:
Connect the input terminals (A/B) to the power supply or brake unit. Connect the output terminals (C/D) to the load or ground.
Terminals are made of silver-plated copper. Tighten to the specified torque (e.g., 5-6 N·m for M6 bolts).
2. Operation and Maintenance
Daily Inspection:
Perform monthly inspections for resistor wire discoloration, breakage, or damage to the insulation sleeve.
Measured resistance deviation should be within ±5% of the rated value. Insulation resistance, measured with a 500V megohmmeter, must be ≥100 MΩ.
Cleaning and Maintenance:
Remove dust using dry compressed air. Do not use water or chemical solvents.
Clean the grooves between the wire windings gently with a soft brush to avoid dislodging metal debris.
About the factory
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