High Voltage EV Relay for Battery and Power Systems OEM Supplier
Click to enlarge
High Voltage EV Relay for Battery and Power Systems OEM Supplier
OEM Reliable Imaging Front Camera for New EV Systems
OEM Reliable Imaging Front Camera for New EV Systems
Back to products
High Precision Relay Iron Core for Stable Electromagnetic Performance
High Precision Relay Iron Core for Stable Electromagnetic Performance

High Voltage EV Relay for Battery and Power Systems OEM Supplier

Material:High-conductivity stainless steel (e.g., SUS304/316L) or copper alloy (e.g., phosphor bronze), with nickel/tin plating

Shape:Cylindrical shape with internal threads or stepped interface

Size Range:Diameter: Φ8mm – Φ25mm; Height: 10mm – 40mm (customizable)

Internal Design:Precision-machined bore for pin insertion or threaded connection

Surface Finish:Polished + plated (to enhance conductivity and anti-oxidation)

Manufacturing Process:CNC turning + precision grinding + electrochemical polishing

Categories: , Tag:
Description

Advanced High-Voltage Control for Next-Gen E-Mobility

As a dedicated OEM supplier, CAIYI delivers the high voltage EV relay series designed to meet the rigorous demands of modern electric vehicles and energy storage systems. We focus on bridging the gap between high-power performance and long-term safety, ensuring your power distribution units operate with maximum efficiency and zero downtime.

Core Engineering Highlights:

  • Superior DC Switching Performance: Specifically designed for high-voltage DC environments, our relays provide stable switching and reliable conductivity. They effectively manage the intense electrical demands of EV powertrains and charging infrastructures.

  • Seamless BMS Integration: We optimize our relays for perfect synchronization with Battery Management Systems. This integration allows for precise energy distribution and rapid circuit protection, safeguarding the battery pack’s integrity.

  • Exceptional Thermal & Mechanical Durability: Built with industrial-grade heat-resistant materials, our internal structures withstand continuous high-temperature operation and intense road vibrations without performance degradation.

  • High-Efficiency Circuitry: By minimizing contact resistance and accelerating response times, our relays reduce energy loss. This efficiency is critical for extending vehicle range and optimizing power system performance.

OEM Customization & Manufacturing Strength:

  • Tailored Technical Specifications: We offer flexible OEM solutions, allowing you to customize voltage ranges, current capacities, and housing configurations to fit your unique system architecture.

  • Direct Factory Supply: Eliminate middleman costs. As a direct manufacturer, CAIYI guarantees competitive wholesale pricing and a stable volume supply for global new energy projects.

  • Stringent Quality Assurance: Every high voltage EV relay undergoes rigorous testing for insulation, contact pressure, and cycle life to ensure compliance with international automotive safety standards.

Reviews (0)

Reviews

There are no reviews yet.

Be the first to review “High Voltage EV Relay for Battery and Power Systems OEM Supplier”

Your email address will not be published. Required fields are marked *

Related products

CNC Machined High Concentricity Precision Mandrel for Mechanical and Automotive Use

CNC Machined High Concentricity Precision Mandrel for Mechanical and Automotive Use

,
1. Material: Stainless steel (304/316), alloy steel (40Cr/42CrMo), etc. 2. Structural Shape: Upper end: short positioning shaft (assembly guide), middle: flange step (stop/positioning), lower end: long shaft section (main functional section). 3. Size Range: Total length: 10 – 100 mm, shaft diameter (spindle): Φ6 – Φ12 mm, flange diameter: Φ12 – Φ25 mm. 4. Internal Design: Solid structure, no obvious internal bore, rounded corners (R-angle), H7/g6 fit, end chamfering. 5. Surface Treatment: Precision turning + polishing + grinding + electropolishing (stainless steel) + blackening (alloy steel) + nickel/chrome plating (wear-resistant and corrosion-resistant) + nitriding (improved wear resistance). 6. Manufacturing process: Blanking (bar stock), CNC turning (rough machining), finish turning (forming steps), heat treatment (if required), external cylindrical grinding (to ensure concentricity), polishing/surface treatment, and inspection (concentricity/dimensions).
automotive precision spindle shaft
Valve Assembly Valve Stem Precision Stainless Steel Machined Shaft

Automotive Precision Spindle Shaft OEM Machined Metal Parts

,
Material: Automotive mandrels are typically made of high-strength metal materials such as carbon steel, alloy steel, or stainless steel Shape: Mandrels are generally cylindrical in shape, with some products featuring steps, threads, chamfers, or locating grooves Size Range: Diameter typically ranges from Φ3 mm to Φ30 mm; length can be customized Internal Design: Some mandrels may have through holes, blind holes, or hollow structures internally to reduce weight or meet assembly and functional requirements Surface Treatment: Mandrel surfaces typically undergo various treatment processes, such as electroplating, nickel plating, blackening, polishing, or anodizing Manufacturing Process: Mandrels are generally manufactured using high-precision CNC turning, CNC precision machining, grinding, and other processes, and undergo rigorous dimensional inspection and quality control to ensure that dimensional accuracy, concentricity, and surface finish meet the standards for automotive parts
High Precision Relay Limit Post for Automotive Electrical Systems

High Precision Relay Limit Post for Automotive Electrical Systems

, ,
Material: High-conductivity stainless steel (SUS304 / 316L) or copper alloy (phosphor bronze), with optional nickel or tin plating for enhanced electrical performance Shape: Precision cylindrical form with stepped geometry or internal threading for secure positioning and assembly Size Range: Diameter: Φ5–Φ25 mm; Height: 10–40 mm, fully customizable to fit specific relay designs Internal Design: Machined bore or threaded interface, ensuring accurate pin alignment and reliable mechanical connection Surface Finish: Polished and plated surface to reduce contact resistance, improve conductivity, and prevent oxidation

Manufactured with CNC Swiss machining for excellent dimensional consistency

, ,
Material: High-conductivity stainless steel (SUS304 / 316L) or copper alloy (phosphor bronze), with optional nickel or tin plating for enhanced electrical performance Shape: Precision cylindrical form with stepped geometry or internal threading for secure positioning and assembly Size Range: Diameter: Φ5–Φ25 mm; Height: 10–40 mm, fully customizable to fit specific relay designs Internal Design: Machined bore or threaded interface, ensuring accurate pin alignment and reliable mechanical connection Surface Finish: Polished and plated surface to reduce contact resistance, improve conductivity, and prevent oxidation
OEM automotive power relay

OEM Automotive Power Relay for Battery and Electrical Systems

,
Material: High-conductivity stainless steel (e.g., SUS304/316L) or copper alloy (e.g., phosphor bronze), with nickel/tin plating Shape: Compact rectangular structure suitable for automotive installation Size Range:Diameter: Φ8mm – Φ25mm Height: 10mm – 40mm (customizable) Current Capacity: Suitable for medium to high current switching applications Surface Treatment: Anti-corrosion treatment for long-term durability Manufacturing Process: Precision assembly and automated production process
High Precision Relay Iron Core for Stable Electromagnetic Performance

High Precision Relay Iron Core for Stable Electromagnetic Performance

, ,
1. Material: Made of low-carbon steel or high-permeability soft magnetic steel (such as pure iron, DT4, 1010/1020 steel), possessing good magnetic permeability and low coercivity. 2. Shape and Structure: The overall structure is cylindrical with a flat cut edge on the outer side (anti-rotation design), and a stepped concave structure at the top. 3. Size Range: Outer diameter is typically within the range of Φ10–Φ50 mm, and height 10–40 mm can be customized; internal hole diameter and step dimensions are precisely matched according to relay specifications, and OEM customization is supported. 4. Internal Design: The inner hole adopts a multi-stage stepped design + center thread/locating hole design to effectively control the air gap and improve magnetic flux density. 5. Surface Treatment: The outer surface is precision machined with a delicate brushed metal texture; zinc plating, nickel plating, or blackening treatments are available to improve corrosion resistance and environmental adaptability. 6. Manufacturing process: CNC precision turning is adopted, and the tolerance of key dimensions can be controlled within ±0.001mm; key contact surfaces are precision machined or ground to ensure coaxiality and magnetic performance consistency.
CNC Machined New Energy Precision Spindle Shaft Mandrel for EV Motor & Battery Systems

CNC Machined New Energy Precision Spindle Shaft Mandrel for EV Motor & Battery Systems

,
1. Material: Stainless steel (304/316), alloy steel (40Cr/42CrMo), etc. 2. Structural Shape: Upper end: short positioning shaft (assembly guide), middle: flange step (stop/positioning), lower end: long shaft section (main functional section). 3. Size Range: Total length: 10 – 100 mm, shaft diameter (spindle): Φ6 – Φ12 mm, flange diameter: Φ12 – Φ25 mm. 4. Internal Design: Solid structure, no obvious internal bore, rounded corners (R-angle), H7/g6 fit, end chamfering. 5. Surface Treatment: Precision turning + polishing + grinding + electropolishing (stainless steel) + blackening (alloy steel) + nickel/chrome plating (wear-resistant and corrosion-resistant) + nitriding (improved wear resistance). 6. Manufacturing process: Blanking (bar stock), CNC turning (rough machining), finish turning (forming steps), heat treatment (if required), external cylindrical grinding (to ensure concentricity), polishing/surface treatment, and inspection (concentricity/dimensions).
High Precision CNC Spindle Shaft Manufacturer
EV battery module components

High Precision CNC Spindle Shaft Manufacturer

,
1. Material: Stainless steel (304/316), alloy steel (40Cr/42CrMo), etc. 2. Structural Shape: Upper end: short positioning shaft (assembly guide), middle: flange step (stop/positioning), lower end: long shaft section (main functional section). 3. Size Range: Total length: 10 – 100 mm, shaft diameter (spindle): Φ6 – Φ12 mm, flange diameter: Φ12 – Φ25 mm. 4. Internal Design: Solid structure, no obvious internal bore, rounded corners (R-angle), H7/g6 fit, end chamfering. 5. Surface Treatment: Precision turning + polishing + grinding + electropolishing (stainless steel) + blackening (alloy steel) + nickel/chrome plating (wear-resistant and corrosion-resistant) + nitriding (improved wear resistance). 6. Manufacturing process: Blanking (bar stock), CNC turning (rough machining), finish turning (forming steps), heat treatment (if required), external cylindrical grinding (to ensure concentricity), polishing/surface treatment, and inspection (concentricity/dimensions).