Gravity Sand Casting Parts

Gravity Sand Casting Parts - Professional Aluminum Alloy Manufacturing Solutions

Shaanxi Rongbao Machinery Electronics Co., LTD. specializes in manufacturing high-performance Gravity Sand Casting Parts for global equipment manufacturers. Established in 2003, we combine gravity casting and sand casting technologies to produce precision aluminum alloy components weighing 2.3kg with A356 material.

Our production method incorporates patented technologies, 14 utility model patents and National High-Tech Enterprise accreditation. We manufacture up to 5,000 pieces per batch and meet all ISO 9001, ISO 14001 and ISO 45001 quality standards. Our goods are used in power transmission conductor applications, with reliable dimensional precision and surface integrity, and have an export ratio of around 70% to the United States, Europe and Japan.

What Are Gravity Sand Casting Parts?

The goods are metal parts made by casting molten aluminium alloy into sand moulds by gravity only. This mechanism forms complicated shapes without external pressure systems.

The process combines the versatility of traditional sand moulding with the controlled flow of metal in gravity casting. Cost-effective production, while still keeping the structural integrity for industrial applications.

Our A356 aluminium alloy castings are CNC machined and shot blasted treated. This ensures your parts fulfil the high performance specs of power transmission systems.

Technical Specifications

Manufacturing Advantages

Integration of Multi-Process

We integrate gravity casting, sand casting, precision machining and surface treatment in one site. This saves you the hassle of having to deal with several providers and makes your buying much easier.

Patented Technology 

We have 14 utility model patents, including core manufacturing technologies for complicated geometries. The components are made using patented procedures to improve structural performance.

Flexible Customization

Our ODM services are flexible to fit your needs, either 2D drawings or 3D models. We produce conductors for power transmission to your exact specifications.

Quality Systems Proven

Triple ISO accreditation (9001/14001/45001) guarantees constant quality management, environmental responsibility and workplace safety during production.

A History of Dependable Delivery

Our planned production schedule facilitates prototype development as well as bulk orders. Standard lead times of 20-30 working days let you keep predictable supply chains.

Application Scenarios

Power Transmission Equipment

Our 2.3kg A356 aluminium conductors are corrosion resistant and have high electrical conductivity. The gravity sand casting process provides dense metal structures for high performance power applications.

Industrial Parts for Machines

The method can produce complicated internal chambers and elaborate surface features. Dimensional stability benefits your machine housings, valve bodies and mounting brackets.

Automotive & Transportation

Aluminium gravity castings provide lighter components with mechanical strength. This helps modern car design achieve fuel efficiency goals.

Custom Engineering Projects 

We scale our manufacturing to your concept, from first prototypes to 5,000 piece production runs. We have a 100 pc MOQ to provide entry points for test and validation.

Why Choose Rongbao's Gravity Sand Casting Parts?

Global Market Experience

We export 70% of Gravity Sand Casting Parts production to international markets including the United States, Europe, and Japan. Your quality expectations align with standards we've demonstrated through ABB's SSBM audit compliance.

One-Stop Fabrication

We take care of the complete supply chain of your part from mould development to the final surface treatment. This integration saves lead times and makes vendor management easier.

Technical Assistance

Our engineering team offers manufacturing consultation during your design phase. We help optimise parts geometry for casting feasibility and cost effectiveness.

Consistency in Quality Control

Shot blast surface treatment eliminates contaminants and provides a consistent finish. CNC machining is used to obtain essential dimensions with tight tolerances for assembly compatibility.

Production Process

Mould Making and Pattern Making

We design reusable patterns per your needs. The hollow is created by sand moulds to match your component geometry.

Melting & Pouring

Controlled melting of aluminium alloy A356 Molten metal flows into the mould cavity in gravity feed systems.

Cooling and Solidification 

Rate of cooling is controlled to prevent internal stresses. This leads to a consistent grain structure across the 2.3kg casting.

Finishing Operations

CNC machining finishes essential surfaces and features. Shot blasting prepares parts for your assembly or further coating procedures.

Quality Verification

Before shipment and wooden box packaging, dimensional inspection and material testing will be carried out to ensure your criteria are met.

FAQ

Q: What materials can you cast using gravity sand casting?

We primarily work with A356 aluminum alloy for its excellent strength-to-weight ratio and corrosion resistance. Other aluminum alloys and copper alloys are available based on your application requirements.

Q: What is your minimum order quantity?

A: Our standard MOQ is approximately 100 pieces. This allows you to test component performance before committing to larger production volumes.

Q: How long does mold development take?

A: Mold manufacturing typically requires 15-25 days depending on complexity. Batch production follows within 7-20 days after mold approval.

Q: Can you handle custom designs?

A: Yes. We provide both OEM and ODM services. Send us your drawings, 3D models, or technical specifications, and our engineering team will develop appropriate manufacturing solutions.

Q: What quality certifications do you hold?

A: We maintain ISO 9001:2015 for quality management, ISO 14001 for environmental systems, and ISO 45001 for occupational health and safety standards.

Q: Do you provide surface treatment options?

A: Shot blasting is our standard surface treatment. Additional options including powder coating, anodizing, or custom finishes can be arranged based on your requirements.

Q: What industries do you serve?

A: Our primary markets include power transmission equipment, industrial machinery, automotive components, and custom engineering applications across North America, Europe, and Asia.

Q: How do you ensure delivery reliability?

A: We maintain structured production schedules with 20-30 day standard lead times. Customer feedback confirms our on-time delivery record supports uninterrupted production schedules.

Contact Us

Ready to discuss your Gravity Sand Casting Parts requirements? Email us at steve.zhou@263.net to request quotes or technical consultation.