Plastic bracket mold

We specialize in custom plastic bracket mold development, plastic bracket component production, and optional assembly services—not finished product trading. Our molds are engineered to match your plastic brackets’ unique needs (e.g., load-bearing structures, precise mounting holes, assembly compatibility) , with tailored designs, high-strength material compatibility, and optimized injection molding to deliver durable plastic bracket parts for electronics, furniture, and industrial equipment.

1. Custom Mold Structures: Tailored to Plastic Bracket Requirements

Plastic brackets (e.g., electronic device internal brackets, furniture support brackets, industrial machine mounting brackets) demand structural rigidity, accurate assembly fit, and load-bearing capacity—our mold structures are customized to address these key demands:

Cavity & Core: Machined via high-precision 5-axis CNC machining (tolerance as tight as ±0.02mm) to replicate critical features—such as reinforced support ribs (1.5–3mm thick for load dispersion), threaded mounting holes (diameter tolerance ±0.01mm for screw fitting), and assembly notches (for seamless connection with other components). For complex-shaped brackets (e.g., L-shaped, U-shaped), the mold’s split-core design ensures full material filling of corner areas, avoiding weak points that reduce load capacity.

Gating System: Designed to avoid structural weaknesses in high-stress areas and ensure uniform material flow. For small brackets (size ≤50mm), edge gates positioned at non-load-bearing edges are used—they prevent stress concentration and eliminate post-molding trimming. For large/complex brackets (size ≥100mm), hot runner systems with multi-point gates distribute plastic evenly, reducing material waste by 15–20% and preventing warping in thickened support zones.

Cooling System: Optimized for brackets’ uneven thickness (e.g., thin mounting plates + thick support ribs). Zonal cooling channels (with separate temperature control for thick/thin areas) ensure even heat dissipation—critical for maintaining dimensional stability (no deformation that affects assembly) and reducing cycle time by 25–35%. For brackets with dense support ribs, additional cooling pins are added to accelerate cooling of thickened sections.

Ejection System: Uses ejector pins (arranged at non-mounting, non-load-bearing areas) or ejector sleeves (for cylindrical mounting bosses) to protect structural integrity. Balanced ejection force avoids cracking of support ribs or damage to mounting holes—ensuring the bracket’s load-bearing performance isn’t compromised.

2. Suitable Plastic Materials: Matched to Plastic Bracket Applications

Plastic brackets face long-term load pressure, environmental exposure (temperature changes, moisture), and assembly stress—we select materials based on load capacity, durability, and use scenarios:

PA66 + Glass Fiber (20–30% GF): Ideal for high-load industrial brackets (e.g., machine mounting brackets, heavy furniture support brackets). Combines high tensile strength (up to 80MPa) and impact resistance—supports loads of 10–50kg (depending on bracket design) without deformation. It also has good heat resistance (up to 120°C), suitable for factory or outdoor use.

ABS (Acrylonitrile Butadiene Styrene): Used for electronic device brackets (e.g., PCB board brackets, smartphone internal support brackets). Offers moderate rigidity (Shore D 75–80) and good dimensional stability—ensures precise alignment of electronic components. It’s easy to machine (for additional holes) and compatible with surface treatments (e.g., painting, plating), suitable for indoor electronics.

PC (Polycarbonate): Perfect for high-temperature or transparent brackets (e.g., LED light fixture brackets, medical device internal brackets). Features heat resistance (up to 130°C) and shatterproof properties—withstands temperature fluctuations in equipment operation. Its transparency (85–90% light transmittance) is ideal for brackets needing visual component inspection.

PP (Polypropylene): Great for low-load, cost-effective brackets (e.g., small household appliance brackets, storage box support brackets). Provides good chemical resistance (to water, cleaning agents) and lightweight properties—reduces overall product weight. It’s suitable for indoor, low-stress scenarios (load ≤5kg) where cost efficiency is a priority.

POM (Polyoxymethylene): Suitable for precision-assembly brackets (e.g., automotive interior brackets, office equipment sliding brackets). Boasts high dimensional accuracy (low shrinkage rate ≤2%) and low friction coefficient—ensures smooth assembly and long-term stability without loosening.

3. Injection Molding Process: Optimized for Plastic Bracket Quality

Our injection molding process is fine-tuned to meet plastic brackets’ structural and load-bearing demands, with these core advantages:

Load-Bearing Reliability: Injection parameters (temperature 220–280°C, pressure 90–130MPa) are optimized to enhance material density—internal voids (which weaken load capacity) are minimized. Each batch undergoes load testing (e.g., static load testing for 24 hours) to confirm performance, with a failure rate below 0.2%.

Assembly Precision: Computer-controlled servo molding machines maintain tight tolerance control (±0.02mm) for mounting holes and assembly notches—ensuring brackets fit perfectly with mating components (no gaps or forced assembly). Post-molding optical inspection checks hole position accuracy, with a pass rate of over 99.5%.

Efficient Production: For small brackets (e.g., electronic components), multi-cavity molds (16–32 cavities) enable daily production of 40,000–60,000 components. For large/complex brackets, specialized molding machines (with high clamping force ≥800 tons) support stable production, while automated demolding reduces labor costs.

Cost Optimization: Hot runner systems reduce material waste by 12–18%; for high-volume orders (50,000+ brackets), per-unit cost can be reduced by 10–15%. Two-shot molding is optional for brackets needing dual properties (e.g., rigid PA66 core + soft TPE anti-vibration layer), integrating functions in one step and cutting post-assembly costs.

4. Our Services: Beyond Molds—Plastic Brackets & Assembly

We provide end-to-end solutions for plastic bracket production, not just molds:

Plastic Bracket Manufacturing: Produce custom brackets in various sizes (5×5×2mm to 300×150×50mm), shapes (L-shaped, U-shaped, rectangular), and designs (with/without mounting holes, support ribs, anti-slip pads). Supports custom colors (RAL/Pantone codes) or surface treatments (anti-static coating, flame-retardant finishing).

Value-Added Assembly: Optional assembly services for bracket sub-assemblies—such as attaching metal mounting inserts (for enhanced screw holding force), bonding anti-vibration rubber pads (for electronic brackets), or assembling bracket sets (e.g., full PCB support kits). Delivers ready-to-integrate sub-assemblies, saving your production time.

Custom Design Support: Offer 3D mold design and rapid prototyping (via SLA 3D printing or CNC machining). We can produce 10–30 prototype brackets in 3–4 days for you to test load capacity, assembly fit, and structural stability—optimizing the mold design before mass production.

We are plastic mold maker and can provide custom mold service, we can make injection molds, blow molds, rotational molds and die-casting molds.

For custom injection molds, we can provide professional custom injection molding services. Usually Plastic injection mold manufacturing Molding are manufactured using injection molding technology. The mold materials for injection molds can be chosen from P20, 718, S136, H13 and so on. The mold material reflects the mold life and product material requirements.

For parts that require blow molding production, we can also provide professional custom blow molding services.

Plastic injection mold manufacturing Injection Mould making

1.We communicate product design according to samples/drawings and your requirements.

2.After the product design is confirmed, we carry out the mold design, we provide all kinds of injection molds, blow molds, silicone molds, die-casting molds services.

3.Material procurement, steel cutting and mold basic tools.

4.Mold assembly

5.Mold inspection, tracking and controlling mold processing.

6. We will inform you the date of mold trial and send you the sample inspection report and injection parameters together with the sample.

7.Your instruction and confirmation of shipment.

8.Prepare the mold before packing.

Plastic injection mold manufacturing molding Specification

1. Professional manufacturer, design, production injection mould and stamping mould quality control

2. rich export experience plastic injection mould and stamping mould

3. Reasonable price of design mould

4. Cavities: single or as per your requirements cavity

5. Treatment: S45C Pretreat>25Hrc,And Nitriding

6. Mould Steel: Cavity ,Core and slide: P20 ,2738,2136 available Moldbase :LKM available

7. Standard:DEM ,HUSKY,available

8. Hot runner: according to your demand

9. Life time: >300 Thousand Times

10. Package: Plywood case, anti-rust paint

Mold design：

Information you need to provide us

1. If you have drawings, 2D drawings, 3D drawings (preferably in STEP format).

2. If there are no drawings, you need to provide specific length, width, height and weight information. (It’s best to send us samples)

3. Should the mold be sent to your country, or leave the mold in our factory and we will help you produce the product.

4. Mold material requirements, cavity number requirements (you can tell us about the size of your injection molding machine)

5. Product material requirements and product quantity. (You can tell us about the use of the product and we can give you suggestions)

Transaction process:

Mold testing：

Once the mold is complete, I do a mold test. It usually takes about 3-5 days to complete. We need to assemble the mold, adjust the pressure data of the machine, and try production. We need to check whether there are problems during the normal production of the mold and make modifications.

Product packaging

Packaging according to your needs

1.By air ,it takes 3-7 days for delivery .The goods can be shipped by DHL ,Fedex ,UPS .

2.By sea ,the delivery time is based on your port .

To South East Asian Countries takes about 5-12 days

To Middle east countries takes about 18-25 days

To European countries takes about 20-28 days

To American countries takes about 28-35 days

To Australia takes about 10-15 days

To African countries takes about 30-35 days.

Factory

Video-1: (Factory Video)

Video-2: (Injection Molding)

Video-3: (Blow molding)

Video-4: (Blow molding)

Video-5: (Roll molding)

Customer satisfaction is our most important goal. We focus on communication and cooperation with our customers, always pay attention to their needs and provide quick response and quality customer service. Our injection production mold factory is committed to establishing long-term relationships and ensuring that our customers receive the best after-sales service during the purchase and use of our products, and we will definitely do our best to solve any problems for our customers.

FAQ

1. Who are we?

We are based in Zhejiang, China, start from 2014,sell to North America(30.00%),Southern Europe(10.00%),Northern.

Europe(10.00%),Central America(10.00%),Western Europe(10.00%),Mid East(10.00%),Eastern Europe(10.00%),South America(10.00%). There are total about 51-100 people in our office.

2. How can we guarantee quality?

Always a pre-production sample before mass production;

Always final Inspection before shipment.

3. What can you buy from us?

Mould,Plastic Product, Metal Product,Dental Product,CNC machining.

4. Why should you buy from us not from other suppliers?

Ningbo P&M Plastic Metal Product Co., Ltd. We main do all kinds of 3d design, 3d printing and plastic metal molds tooling and products. We have our own engineer and factory. One-stop supply:3d design - 3d printing - mold making - plastic injection.

5. What services can we provide?

Accepted Delivery Terms: FOB,CFR,CIF,EXW,FCA,DDP,DDU;

Accepted Payment Currency:USD,EUR;

Accepted Payment Type: T/T,L/C,PayPal,Western Union,Escrow;

Language Spoken:English,Chinese,Spanish,French,Russian.

6. What are the characteristics of your service?

1. Your inquiry related to our products or prices will be replied within 24hours.

2. Welltrained and experienced staffs to answer all your enquiries in fluent English.

3. Offering the support to solve the problem in the application or selling period.

4. Competitive prices based on same quality.

5. Guarantee samples quality same as mass production quality.