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High-Precision Nitrided Ejector Pin

High-precision nitrided ejector pin is a key ejection component in die-casting molds, injection molds and hardware molds.

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Accessory Of Die Casting Machine

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Product Overview

High-precision nitrided ejector pin is a key ejection component in die-casting molds, injection molds and hardware molds. Made of high-quality alloy steel through precision machining and deep gas nitriding treatment, it features high surface hardness, wear resistance, high temperature resistance and no deformation. It is widely used in the ejection system of precision molds for zinc alloy, aluminum alloy, plastic parts, etc., ensuring stable product demolding, accurate ejection and long service life.

Product Features

● High-Precision CNC Machining, Good Dimensional Consistency

● Full-process CNC precision turning and grinding, with high concentricity, straightness and outer diameter accuracy.

● Small fit clearance, smooth ejection without jamming, no scratch on molds and products.

● Deep Nitriding Treatment, High Hardness and Wear Resistance

● The surface is professionally gas-nitrided, with high hardness, low brittleness and wear resistance.

● Not easy to bend or break during long-term high-frequency ejection, service life is much longer than ordinary ejector pins.

● High Temperature Resistance, Fatigue Resistance, Suitable for Severe Working Conditions

● Can withstand high-temperature environments of die-casting and injection molding, no deformation or softening during long-term work.

● High fatigue strength, suitable for high-speed and continuous automatic production.

● Smooth Surface, No Material Sticking, No Scratching on Products

● The surface is precision polished with high smoothness, no scratching or material sticking during ejection.

● Effectively improve product appearance quality and yield rate.

● Complete Specifications, Support Non-Standard Customization

● Can be customized with different diameters, lengths, steps and head structures according to drawings and samples.

● Suitable for various die-casting molds, injection molds and hardware progressive molds.

Application Scope

● Ejection system of zinc alloy, aluminum alloy and copper alloy die-casting molds

● Precision ejector pins for plastic injection molds

● Hardware stamping molds, drawing molds and multi-station molds

● Mold equipment requiring long service life, high precision and high stability

Core Advantages

● High Precision: CNC precision machining, stable cooperation

● Super Wear-Resistant: Uniform and firm nitrided layer, long service life

● High Temperature Resistance: Suitable for high-temperature die-casting and injection molding conditions

● No Mold Sticking: Smooth surface, no damage to products and molds

● Customizable: Both standard and non-standard parts can be mass-produced

Technical Specifications

Item	Details
Product Name	Ejector Pin, Return Pin, Ejector Blade
Application Areas	Automotive, Machine Tool Accessories
Place of Origin	Zhejiang, China
Product Material	Mold Steel SKD61, HSS SKH51, Tool Steel, H13, L2, SKS21
Dimensions	Diameter 1–50mm, Length 100–1200mm
Surface Treatment	Nitriding Treatment
Unit	Metric / Imperial
Inventory	Adequate Stock
Transport Packaging	Carton Packing
Trademark	CunGang
Customs Code	84807190
Certification	CE, ISO9001 Quality Management System, Product Certification
Model	Comply with German / International / Japanese Industrial Standards
Quality	Surface Hardness: 65–74 HRC
Production Standards	Comply with DME, PCS, FIBRO, HASCO, MISUMI and other industrial standards
Product Type	Automotive Mold Parts, Die-Casting Machine Parts
Brand Name	CunGang
Specifications	Complete Specifications
Production Capacity	Annual Output: 5,000,000 pcs

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Our Services

The company has always adhered to the philosophy of “customer first, service foremost,” providing global customers with professional, efficient, and comprehensive after-sales support to ensure worry-free equipment operation.

Technical Support

We provide one-stop technical guidance, including equipment selection, solution design, installation and commissioning, and operator training, to ensure the smooth operation of your equipment.

Warranty Service

All equipment comes with a standard warranty period. During this period, we provide free repairs and replacement of parts for quality issues resulting from non-human factors.

Rapid Response

We have established a professional after-sales team to provide rapid response services to both domestic and international customers, promptly resolving equipment malfunctions and technical inquiries.

ODM/OEM

For customized equipment, we provide dedicated technical support and software upgrade services to meet customers’ long-term production needs.

Lifetime Maintenance

We offer a comprehensive after-sales service system, providing installation guidance and maintenance to ensure the long-term, stable operation of our customers' projects.

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FAQ

What is the delivery lead time of the equipment? Can on-site installation and commissioning be provided?

The delivery lead time for standard models is 15–30 days, and for customized equipment it is 30–60 days (adjusted according to customization complexity).On-site installation and commissioning are provided for all equipment. Professional technicians will carry out equipment installation, commissioning and parameter calibration on site, and provide on-site training for operators to ensure the equipment is put into normal operation.

What casting methods are available for brass casting machines? What brass products are they suitable for producing?

Our brass casting machines mainly adopt three casting methods: sand casting, permanent mold casting, and low-pressure casting, to meet different product requirements:

1. Sand casting: Suitable for mass-produced small and medium-sized brass parts (such as valves, pipe fittings, hardware accessories), with low cost and compatibility with complex shapes.

2. Permanent mold casting: Suitable for high-precision, wear-resistant brass parts (such as bearings, gears, precision components), featuring smooth casting surfaces and high dimensional accuracy.

3. Low-pressure casting: Suitable for large-sized, thin-walled brass parts (such as engine components, large pipe fittings), free from porosity and shrinkage defects.They can produce various brass products used in hardware, machinery, sanitary ware, automotive and many other industries.

How to reduce wear and extend service life during daily use of cutting machines?

Four key points should be noted:

1. Regularly inspect the cutting torch, nozzle, laser head (or waterjet nozzle), and replace worn parts in a timely manner to avoid affecting cutting accuracy and efficiency.

2. Keep the equipment clean by removing waste residue and dust from the cutting table to prevent jamming caused by foreign objects.

3. Strictly adjust cutting parameters (speed, power, air pressure) according to the material type and thickness to avoid overloading operation.

4. Regularly inspect the electrical system and cooling system to ensure proper heat dissipation of the equipment.Our company provides regular inspection and maintenance services.

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