Recommended Connectors for Hot Runner Systems

Connectors suitable for hot runner systems must possess key characteristics such as high temperature resistance (-40°C to +125°C), a high degree of protection (IP65 or higher recommended), vibration resistance, and chemical corrosion resistance. Furthermore, they must hold industrial safety certifications-such as UL, CE, and CCC-to ensure that contact failures, short circuits, or electrical leakage do not occur even in harsh operating environments.

1. HARTING - The German Industrial Benchmark; The Premier Choice for High-End Injection Molding

Core Advantages: A global leader in heavy-duty connectors, HARTING products are renowned for their high mechanical strength, IP65/IP69K protection ratings, and wide operating temperature range (-40°C to +125°C). They are widely utilized in highly demanding sectors such as the automotive and medical industries.

Technical Highlights:

Modular design supporting the combined transmission of power, signals, and data;

Threaded locking mechanism offering superior resistance to vibration and shock, with a mating cycle life exceeding 5,000 insertions;

Insulating materials capable of withstanding temperatures ≥300°C, compatible with high-temperature silicone or fiberglass-insulated cables.

Typical Models: Han® 12HSC-F, 09300240301 (24-pin)

Certification Standards: UL, CE, RoHS, CCC; Compliant with GMP and Industry 4.0 standards.

2. Nanaboshi (Nanaboshi Scientific Electric) - Mold-Specific Design: Precision and Stability

Core Advantages: Specifically engineered for injection molds, the NCS series features an operating temperature range of -40°C to +120°C and supports multi-pin configurations ranging from 1 to 40 pins, making it ideally suited for complex hot runner systems.

Technical Highlights:

High-precision silver-plated contacts offering strong oxidation resistance and a contact resistance of ≤1 mΩ;

Solder-type termination ensures a more secure connection, eliminating the risk of loosening associated with crimp connections;

IP65 protection rating provides dust and splash resistance, making it suitable for environments involving frequent mold changes.

Typical Models: NCS-4010-R, NCS-5015-R

Certification Standards: UL/CSA/CCC; Widely used in precision electronics and the injection molding of automotive lighting components.

3. Wenyi Electric - Domestic Technological Breakthrough: High Voltage & Long Lifespan

Core Advantages: Withstands voltages up to 1500V and is compatible with 800V high-voltage systems-far exceeding current industry standards. Its mating cycle lifespan exceeds 100,000 cycles, and it boasts an ingress protection rating of IP69K.

Technical Highlights:

Stranded copper alloy terminals combined with nano-gold plating technology result in a temperature rise of only 35K at a rated current of 600A (surpassing national standards);

Features a triple-seal structure capable of withstanding thermal cycling ranging from -50°C to 120°C;

Has become a trusted supplier for industry leaders such as BYD and CATL.

Applicable Scenarios: New energy storage systems, injection molding machinery, and high-voltage fast-charging equipment.

4. Linko Electric - The Expert in High-Pressure Water Resistance; The Top Choice for Cleaning Environments

Core Advantages: The DH16 series is IPX9K certified, capable of withstanding high-pressure water jet impacts at 80±5°C and 80–100 Bar.

Technical Highlights:

Triple-protection design: O-ring + axial sealing ring + spiral bayonet locking mechanism;

Housing constructed from CNC-machined zinc alloy, offering excellent corrosion resistance and structural integrity;

Mating cycle lifespan exceeds 500 cycles, making it ideal for harsh environments requiring frequent cleaning.

Verification Capabilities: Successfully passed a 30-minute continuous test under 100 Bar water pressure at 80°C, demonstrating zero internal water ingress.

5. Huadian (HDC-HE-024) - The High-Value, High-Performance Domestic Workhorse

Core Advantages: Sets the benchmark for IP65 ingress protection. Features a die-cast aluminum alloy housing with a high-temperature powder coating, offering outstanding cost-effectiveness; widely adopted by numerous medium-to-large-scale injection molding facilities.

Technical Highlights:

Available in configurations ranging from 6 to 48 pins, compatible with mainstream hot runner junction boxes;

Utilizes a screw-clamp termination method, ensuring stable connections and facilitating easy maintenance;

Affordably priced with an abundant supply of spare parts. Typical Model: HDC-HE-024

6. Wenbuluo (HE Series) - Specialized Manufacturer of Heavy-Duty Connectors

Core Advantages: Focused on industrial heavy-duty connectivity; the HE series covers a full range of specifications (6P/10/16/24/32/48 cores) and offers strong compatibility.

Technical Highlights:

Industrial-grade copper contacts with stable conductivity;

Waterproof and dustproof design, with prices starting as low as ¥18.5;

Extensive domestic service network ensuring rapid response times.

Selection Guide: Key Parameter Comparison Table

Recommended Application Scenarios

High-end Automotive/Medical Injection Molding → Prioritize HARTING or Nanaboshi to ensure zero-defect operation

Medium-to-Large Injection Molding Plants / Multi-cavity Molds → Choose Huadian HDC-HE-024 or Wenbuluo HE Series for excellent cost-performance value

High-humidity / Frequent Wash-down Environments → Choose Linko Electric DH16 Series for resistance to high-pressure water jets

High-voltage Energy Storage / New Energy Injection Molding → Choose Wenyi Electric; supports 1500V withstand voltage and offers a long service life