Hot / Cold Runner Plastic Automotive Injection Mould With Pro E Solidwork Designed
30 Years of Manufacturing Excellence
Beijing Longshan Brothers Trading Co., Ltd. is located in Beijing, the capital of China. The company comprises a mould company specializing in injection mould manufacturing, an aluminum die casting company focused on die-casting mould manufacturing, a machinery company engaged in machine developing and manufacturing, and an OEM assembling company.
Founded in 1992, the company covers an area of 15,000 square meters with more than 100 employees. ASSAB, LKM, YUDO, and other well-known domestic and foreign enterprises are extended suppliers of raw materials. Our products have long served China, Germany, Italy, Russia, and other overseas countries.
The company has passed the ISO 9000 quality system certification. We have mass-produced plastic parts, stamping parts, and aluminium die castings parts with mould as tools. These are mainly used in electrical equipment, electric power, photo voltaic, aerospace, railway locomotives, household appliances, cars, construction materials, medical, and other industries.
We have rich experience in meeting customer quality requirements and a perfect service system covering before-sale, during-sale, and after-sale support. We are devoted to creating an Ever-stand Brand and building a century enterprise. Looking forward to the future, the company will uphold the business philosophy of professional quality, integrity, and development, creating higher and more precise products. Making friends with the whole world and achieving a better future hand in hand.
FAQ About Plastic Mould Manufacturing
Q1: What kind of molds do you make? Plastic injection mold, Die casting mold or something else?
A1: We are mainly making plastic mold injection and Die casting mold. Sometimes we also make stamping molds according to our customer's requirements.
Q2: What types of files do you accept (drawings)?
A2: With our CAD systems we can accept following files: STP, IGS, DXF, DWG, Cad Key PPT, STL, X_T, CATIA, UG files, etc.
Q3: What kind of steel do you use for plastic mouldings?
A3: We can use any type of steel appointed by customer or popular in the market. Such as P20, 718, 8407, NAK80, H13, S136, DIN 1.2738, DIN 1.2344, etc.
Q4: Can you provide the steel certificate and heat-treatment certificate?
A4: Yes, We can provide steel certificate or hardness certificate to prove.
Q5: Can you make the texture / text / heat_treatment / nitriding for the injection mold plastic?
A5: Yes, As plastic mold factory, we have long-term cooperated subsidiary factories that do those processes. They are professional and well reputed in our local market.
Q6: How long is the lead-time for a plastic injection mold?
A6: It all depends on the mold's size and complexity. Normally, the lead time is 25–45 days. If the Plastic Mouldings are very simple and not big size, we can work out within 15 days.
Q7: Do you make spare parts for your customer?
A7: Yes, we will provide spare parts for the mold if needed or required by client.
Q8: How do you pack the china plastic moulds?
A8: We pack the plastic moulds with wooden box. There are the main 3 operation steps.
- First Step: We daub some rust preventive oil on the mold.
- Second Step: We pack the mold with thin plastic film to avoid moisture.
- Third Step: We put this plastic film packed mold in a wooden box, and fix it avoid any movement.
FAQ About Molded Products
Q9: How many injection plastic mouldings machines do you have?
A9: We have 40 sets of plastic Injection Mouldings machines.
Q10: What is the minimum & maximum unit weight and size your machines can produce?
A10: Our machines produce the unit parts from 1 gram to 6000 grams weight. Our machines can produce the maximum size of unit plastic part: 1.5 × 1.5 × 1.5 meters.
Q11: What kind of plastic materials you usually use?
A11: We are specialized in producing plastic products with the following materials: PP, ABS, PC, POM, PA, HDPE, HIPE, PS, AS, PBT, PET, PMMA, PVC and so on.
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