Custom Plastic Injection Molding Services
We provide custom plastic injection molding solutions using P20 mould steel with professional design capabilities via UG or Pro/E software.
Company Profile
Since 1992
Beijing Longshan Brothers Mould Co., Ltd is an integrated enterprise with industry and trade focused on molds customization and processing. Founded in 1992, our factory covers 15,000 square meters with 90 employees.
Scope of Production: Injection Molds, Die-casting Mold, Rubber Molds, Plastic Production, Die-casting Production, Rubber Production, and more.
During more than 30 years of development, we have integrated many related business lines and obtained a mature industrial chain, enriching our experience for complete new product research and production.
We provide customization and processing services for more than 50 countries including the US, Germany, Russia, Australia, Italy, Indonesia, Korea, Japan and the United Kingdom, with many clients maintaining over 20 years of successful cooperation.
Certifications & Achievements: ISO 9001:2015 Certificates, AAA Credit Enterprise, TUV Golden Certificates, Certificate of Small and medium-sized enterprises of science and technology of Hebei Province, Certificate of High and New technology of Hebei province, and 35 patents.
Our professional team provides technical support and high-efficiency cross-border solutions for clients, offering full visual service throughout production and superior one-stop service (design, surface treatment, assembly and packaging).
Our goal is to meet clients' requirements, ensure satisfaction, and build our company into a century-old enterprise.
Our Cases
Our Customers
Order Process
Product Specifications
| Product Type |
Custom made plastic injection molding parts |
| Mould Structure |
Plastic injection mould |
| Mould Material |
Mould steel P20, 718, 718h, 718hh, 2738, 2344, 2316, S136, NAK80 |
| Mould Base |
LKM, HASCO, JLS, DEM etc. |
| Mould Life |
200,000-1,000,000 shots |
| Cavity |
Single & Multi-cavity |
| Gate Type |
Cold runner & hot runner |
| Certification |
ISO9001:2015 |
| Design Software |
UG, Pro/E, CAM, Solidworks, Auto CAD |
| Product Material |
PP, ABS, PA delrin (POM), PMMA, AS, PS, PE, PET, PVC, PEEK, etc; GF added material (ABS+GF, PA66+GF, PA666+GF) |
| Customizable Dimensions |
Material, shape, Logo, size, color, surface texture, surface treatment, product performance (scratch resistant, flame resistant, UV resistant, food grade, chemical resistant, etc), packing |
| Application |
Household commodities, electronics, car parts OME & Performance, motorcycles, bikes, machinery parts, hospital, cosmetics, and Aerospace etc. |
| Delivery |
Shipping by air/sea/railway transportation/land transportation |
Packing and Shipping
Frequently Asked Questions
Does your company make mold by yourself?
Yes, We are a mold manufacturing factory established in 1992. You can visit our factory via video call with me now. You are also welcome to visit our factory in China.
What are your advantages?
- More than 30 years of mold manufacturing experience
- Provide you with high-quality one-stop service (design, production, surface treatment, assembly, packaging)
- Professional team provides you with technical support and efficient cross-border solutions
- We can provide you with full visualization services during the cooperation process
- Lifetime after-sales warranty service
How to ensure the confidentiality of design drawings and other information?
We will sign a confidentiality agreement with you. Confidential information related to custom projects will not be disclosed.
How many kinds products can you make? Only make the mold?
We can make different kinds of mold, such as plastic injection mold, die casting mold, blowing mold, stamping mold, and silicone rubber mold. Besides, we also can produce the final parts for you (plastic injection parts, aluminium die-casting parts, rubber parts, silicone parts, stamping parts).
What's the software you will use to check the drawing? And what's format of drawing you can check?
Our designers and engineers all use Auto CAD, Solidworks, UG, Pro/E or CAM to check 2D or 3D drawings. We can check the drawings with PDF/ DWG/ STP /STEP/ X-T / IGS / STL / DXF / DXW etc. formats. STP /STEP is best format.
How do you ensure mold or product quality?
We will control quality according to ISO9001 quality system standards and send you videos of mold trial and samples. If necessary, we will provide steel quality specifications. For products, even though we will inspect each product, we will still provide a certain quantity of spare parts based on the order quantity.
How to pack the mold and products?
For molds, we will coat one-layer anti-rust oil first, then cover thin films on the mold, finally pack into non-fumigation wooden box. For products, we will pack into standard export cartons or as per customer's request to pack.
Can you design product for me if I only have a rough concept?
Yes! As long as you provide reference objects and your ideas, we can provide design services.
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