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CNC Machined Stainless Steel Tapered Sprue Bushing

Stainless steel tapered sprue bushing is a core high-precision guiding and feeding component for die-casting, injection molding and casting processes.

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Accessory Of Die Casting Machine

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Product Overview

Stainless steel tapered sprue bushing is a core high-precision guiding and feeding component for die-casting, injection molding and casting processes. Made of high-quality stainless steel and precision-machined by CNC, it features high taper accuracy, good smoothness and stable dimensions.

It is widely used in hot/cold chamber die-casting machines, injection molding machines, casting molds and other equipment to achieve stable, accurate and efficient feeding of molten metal or melt.

Product Features

● High-quality stainless steel, durable and corrosion-resistant

● Adopts wear-resistant, high-temperature resistant and anti-corrosion stainless steel with high strength and good toughness.

● Not easy to deform or rust under long-term high-temperature working conditions, with long service life.

● Precision CNC machining, high dimensional accuracy

● Full-process CNC turning, milling and grinding, with controllable accuracy of taper, inner hole and outer diameter.

● Conforms to standards in concentricity, roundness and smoothness, with small mold fit clearance and good sealing performance.

● Tapered structure design for smooth feeding

● Standard tapered runner reduces flow resistance and avoids turbulence, air entrapment and cold material.

● Stable and uniform feeding improves density and surface quality of castings /plastic parts.

● Smooth surface, not easy to stick, easy to demold

● Inner wall is finely ground and polished with low roughness, ensuring smooth melt flow without sticking or blocking.

● Easy to install and replace, with high compatibility with molds and nozzles.

● Customizable according to drawings

● Support processing according to drawings or samples; customizable taper, length, inner hole and flange dimensions.

● Stable supply for both single piece and batch orders, fast delivery and good consistency.

Application Scope

● Die-casting machines: sprue bushings for zinc, aluminum and copper alloy die-casting molds

● Injection molding machines: feeding bushings and nozzle guide bushes for plastic molds

● Casting & molds: gravity casting, low-pressure casting, mold sprue guiding parts

● Applicable equipment: hot chamber die-casting machines, cold chamber die-casting machines, injection molding machines, CNC machined molds

Product Advantages

● High precision: CNC machined, small tolerance, strong interchangeability

● Long service life: stainless steel is high-temperature resistant and wear-resistant, reducing replacement frequency

● Excellent performance: tapered runner design improves product yield

● Strong compatibility: suitable for various die-casting, injection molding and casting molds

Technical Specifications

Item	Parameter Value	Item	Parameter Value
Model	MingYi-002	Demolding Method	Automatic
Surface Treatment	Heat Treatment	Working Hardness	>HRC45
Average Wall Thickness	>3mm	Mold Life	500,000–1,000,000 次（500,000–1,000,000 Cycles
Certification	REACH、FCC、RoHs、CE	Customizable	Yes
Condition	New	Color	Metal Natural Color
Transport Package	Carton Box	Specification & Material	Cemented Carbide
Trademark	MingYi	Origin	China
HS Code	73261910	Annual Output	50,000,000 Pieces

Brand	MY	-
Closest tolerance	±0.002mm	Micron‑level precision, suitable for core parts of high‑precision molds
Polishness	Ra 0.2	Mirror‑level polishing standard, reduces flow resistance of molten metal
Material	Carbide, ASP23, Vanadis, SKD11, HSS, A2, M2, SUJ‑2, etc	Covers high‑end steels commonly used for mold parts, meeting various heat & wear resistance requirements
Marking	Up to requirements	Supports laser marking of brand, specification, batch number, etc.
Surface treatment	TiN, TiCN, AlTiN, TiCrN, Nitrided, Black oxygened, etc	All are common processes for wear & corrosion resistance of mold accessories
ISO certificate	ISO 9001:2008	Note: Current mainstream version is ISO 9001:2015; certification update recommended
Service	Made‑to‑order	Core service, suitable for non‑standard mold parts requirements
Product standard	Dayton, Lane, DIN, ISO, MISUMI, FIBRO, MOELLOR, HASCO, etc	Covers international mainstream mold parts standards, compatible with imported molds

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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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