SINTERED IRON SGI SPRING FITTING

DALON’s SINTERED IRON SGI SPRING FITTING is a high-strength, precision-engineered component from our sintered metal parts product line. Manufactured using SGI (Spheroidal Graphite Iron) powder metallurgy, this fitting offers superior mechanical strength, dimensional stability, and reliability for load-bearing and high-vibration applications.

Designed for spring retention and precision assembly, the SGI spring fitting is ideal for systems requiring tight tolerances and long service life. Its porous internal structure, characteristic of sintered materials, allows optional oil impregnation for lubrication and wear resistance in dynamic environments. The robust metallurgical bonding ensures consistent load transmission without deformation or failure under cyclical stress.

This component is commonly used in automotive assemblies, power tools, agricultural machinery, and industrial actuators. With its strong shock absorption and fatigue resistance, it performs well in critical motion and retention systems where conventional cast or machined parts would be costlier or less efficient.

Key Features

• Material: Sintered SGI (Spheroidal Graphite Iron)

• Function: Precision spring-fitting and retention

• Manufacturing Process: Powder metallurgy sintering

• Mechanical Strength: High-load and fatigue resistance

• Lubrication Option: Oil-impregnated for long life and reduced wear

• Dimensional Accuracy: Net-shape forming, reduced need for secondary machining

• Surface Finish: Available in as-sintered, impregnated, or plated finish

Applications

• Spring-loaded mechanisms in automotive and machinery

• Retaining components in actuators and locking systems

• Assembly aids in robotic arms and servo drives

• Shock-absorbing mounts in vibration-prone equipment

• Cost-effective replacement for cast or machined fittings

Why Choose DALON

As a certified ISO 9001:2015 manufacturer, DALON offers full-cycle design, prototyping, and production of sintered metal components tailored to exacting specifications. Our SGI spring fittings are developed with high repeatability and excellent mechanical characteristics, ensuring performance in industrial, automotive, and mechanical systems.

Advantages include:

• Engineering support for material selection and tolerance optimization

• Oil impregnation and surface treatment options available

• Dimensional control via precision tool-making

• Short delivery times:

   

  • Standard tooling products: ~30 days

  • Custom design and tooling: ~35–40 days

   

• MOQ for custom parts: Please inquire directly with DALON

FAQ – Frequently Asked Questions

Q1: What is a sintered SGI spring fitting used for?

It is used to retain or preload springs within a mechanical assembly, particularly where space constraints, vibration, or stress fatigue are factors.

Q2: How strong are sintered iron parts compared to cast iron?

Sintered SGI offers comparable strength to cast parts with the added benefits of precision, porosity control, and lubrication retention.

Q3: Can I use this part in dynamic or moving systems?

Yes. When impregnated with oil, it offers low-friction operation and wear resistance in rotary, linear, or oscillating systems.

Q4: Is customization available for size and tolerances?

Absolutely. DALON supports full customization of inner/outer diameters, fitting depths, tolerances, and mating surfaces.

Q5: Are sintered parts suitable for mass production?

Yes. Powder metallurgy is ideal for mass-producing complex shapes with consistent quality and cost efficiency.

What Do People Also Ask – Answered

Q: What are sintered metal parts made of?

Sintered parts are typically made from metal powders like iron, bronze, or stainless steel, compacted and sintered at high temperatures to form solid yet porous components.

Q: What are the benefits of using sintered components?

They offer net-shape production, excellent repeatability, self-lubrication (if impregnated), cost savings, and high structural integrity for precision applications.

Q: How are sintered parts different from machined ones?

Sintered parts are formed to near-net shape directly from powdered metal, reducing material waste and machining time while maintaining tight tolerances.

Q: Are sintered iron parts rust-proof?

They can be treated with coatings or impregnated with oils to enhance corrosion resistance, depending on application needs.