Audited Supplier
Qingdao Nanchen supply OEM services of brass/steel/aluminum/iron/ stainless steel castings with Sand Cast Process, Investment Cast Process, Lost Wax Cast Process, Gravity Cast Process, Die Cast Process forging Process and CNC Machinery according to your requirements.
Whether you have a design ready for casting, or you need a custom casting design, we can help. Nanchen has the capabilities to produce it for your needs from start to finish.
The Sand Casting Process
The process consists of six main steps:
1. Place a pattern in the sand to create a mold.
Make a reusable pattern that has the same shape as the final product. Leave a small allowance to accommodate for thermal shrinkage. Patterns can be made from different sand casting materials, depending upon the number of sand casting tolerances we want to include.
2. Incorporate the pattern and sand in a gating system.
After making the pattern, a sand mold is created by placing the pattern inside the sand blocks.
3. Remove the pattern.
The mold is generally shaped in two halves: the upper half is called the cope and the lower half is called the drag. Once the sand tightly holds up, the two halves are separated, and the pattern is removed. Then the two halves are joined back together, leaving a cavity with the same shape as the pattern.
4. Fill the mold cavity with molten metal.
In the next step, molten metal is poured into the mold cavity. The molten metal fills the cavity, as well as the runner and riser pathways.
5. Allow the metal to cool.
6. Break the sand mold away and remove the casting.
Once the metal cools, shake up the sand block, allowing the solidified metal product to fall out. Most of the sand is recovered and reused for further casting. Gates, runners, and risers are separated from the casting part, and other post-casting processes such as machining and grinding are applied for the final size and surface finish.
| Casting Unit Weight | 0.1KG-3Tons | |
| Casting Standard | ISO ,DIN, AISI, ASTM, BS, JIS, etc. | |
| Casting Workpieces Size | Customized with the drawing you offered. | |
| Casting Workpieces Color | Silver, black, white, bronze, champagne, green, gray, golden yellow, nickel, or customized. | |
| Surface Roughness | Ra0.05-Ra50. | |
| Heat Treatment | Normalizing, Annealing, Quenching, Tempering, etc. | |
| Casting Material | High grade ductile iron(QT1050-6)/(QT800-5)/(QT600-5), Grey iron, Stainless steel, Carbon steel. | |
| Casting Process | Sand Casting | Iron based coated sand |
| Coated sand | ||
| Clay sand | ||
| Resin sand | ||
| Investment Casting | ||
| Lost Foam Casting | ||
| Vacuum process casting | ||
| Surface Finish | Sand Blasting, Anodizing, Powder coating, Wood grain, Polishing, Brushing, Electrophoresis. | |
| Inspection Equipment | Test equipment: Spectrum Analyzer, Hexagon CMM, Hardness test equipment, Tension test machine, E-coating testing equipments, Metalloscope. | |
| Dimension Inspection | Coordinate Measuring Machine (CMM),Calipers, Height Gauge, Micrometer Calipers, Inside Caliper Gauge, Angle and R Gauge,customized gauge, etc. | |
| Product application | Our products are widely used in many industries, such as automobile, truck, train, railway, fitness equipment, agricultural machinery, mining machinery, petroleum machinery, engineering machinery, shipbuilding, construction and other power equipment. | |
| Sample production cycle | 30-45 Working days. | |
1. Quality control: The defective products rate is less 0.1%.
2. Sample and pilot run will be given 100% inspection during production and before shipment, Sample check for mass production according to customer's requirements
3. Test equipment: Spectrum Analyzer, CMM, Hardness test equipment, Tension test machine;
4. After-sales services are available all time.
5. Quality situation can be traceable.
Q1: How long is your delivery time?
A:Delivery time is depends on the total quantity of order. Normally, sample can be delivered within 2-3WEEKS.
Q2: Do you provide samples?
A:Yes, SAMPLE is available.
Q3: What is the MOQ of your products?
A:It depends on the category of order.
Q4: Where is your factory?
A:Our factory located in Qingdao city, Shandong province.
Q5:What does your company need to submit a quotation?
A:Drawing or Sample, together with relevant information, such as Quantity, Size, Weight, Material.
Q6:Can we place order without workpieces drawing?
A:Yes. We can duplicate the sample you offered and make drawing for your confirmation.
