
Product Introduction
NOTICE:All the products on our website indicate the ranges we can manufacture and our production capability.
We offer cast aluminum products according to customer’s drawings or samples.
Please feel free to contact us if you have any questions or suggestions about our business.
Product Specification
Dimension Tolerance | CT8 |
Surface Roughness | Ra6.3-12 |
Manufacture | OEM/ODM |
Certificate | ISO9001:2015 |
Standard | ASTM, DIN,JIS, EN, ISO, GB |
Software | Pro/E,UG, Solidworks, Auto CAD, PDF |
Material | A356, A380, aluminum alloy or according to your requirements |
Machining | CNC turning, milling, drilling, grinding, cutting, reaming and threading |
Service | Sand casting, die casting, low pressure die casting, Gravity casting and CNC Machining |
Testing facility | Spectrometer, Tensile test machine, Hardness test machine, CMM (Coordinate Measuring Machine) |
Finished | Polishing, sand blasting, heat treatment, painting, powder coating, anodizing, electroplating, Chrome plating, mirror polishing. |
Product | All kinds of aluminum casting parts |
Quality Control
Casting Process
Packaging & Delivery
Our Customers
Office & Factory
Production Equipment
About Die Casting
If the filling speed is too small, the contour of the casting can not be clearly defined and even can not be arranged. If the filling rate is too high, it will cause the casting to be viscous and increase the porosity in the casting, which will decrease its mechanical properties.
For castings with high wall thickness or internal quality requirements, low filling speed and high pressure ratio should be selected.
High specific pressure and high filling speed should be selected for castings with high requirement of thin wall or surface quality.
The casting temperature of alloy is low, and the thermal conductivity of alloy and die material is good. When the inner runner has a thick bottom, choose a higher filling speed.
Filling velocity (m/s)
Alloy | Simple thickness casting | The general casting | Complex thickness casting |
Zinc alloy, copper alloy | 10~15 | 15 | 15~20 |
Magnesium alloy | 20~25 | 25~35 | 35~40 |
Aluminum alloy | 10~15 | 15~25 | 25~30 |
Shaanxi Rongbao Machinery and Electronics Co.,Ltd.
Shaanxi Rongbao Machinery Electronics Co., Ltd.(formerly known as: Xianrongbao Machinery Electronics Co., Ltd.) which located in the Fengjing Industrial Park is specialized in production of high-quality aluminum sand casting products, aluminum gravity die casting products, low pressure and die casting products, CNC processing products.
Our products
We supply stainless steel casting, aluminum casting, copper casting and precise machining.
Products are widely used in automobiles, machinery, hydraulic parts, hardware, explosion box, motor parts, power tools, valves, flanges, air conditioning joints, robots, sewing, medical equipment, gear boxes, pipeline parts, snow machines, pump boxes, impellers, etc..
Our Factory
Our company currently covers an area of over 5,000m2 of production and manufacturing base, owns a high-quality professional team, with first-class production equipment and testing equipment to ensure high reliability of products. Two patents for utility models have been obtained and certified by the ISO 9001:2015 quality management system.
Our Businesses
Our company has been engaged in the production, processing and sales of casting products and CNC processing products for 14 years. Our customers come from a diverse industry field. 90 % of casting and machinery products are exported to the United States, Europe, Australia, Russia and other countries.
Our Mission
Under the guidance of "innovation is infinite, honesty is eternal", Shaanxi Rongbao will display the grand prospect with the spirit of "Struggle and forge ahead". All employees of Shaanxi Rongbao warmly welcome people from all walks of life to come to the guidance.
Welcome to inquire us prices and visit our company !