Ningbo (P&M) Plastic Hardware Products Co. has 15 years of mold making technology for customized Plastic collar molding molds. We have ISO 9001 certificates. We provide professional custom mold service and we are professional plastic mold manufacturer. We have sufficient experience in product raw material selection and mold material selection. The Plastic collar molding have relatively high requirements for the material softness. Usually We usually recommend silicone, rubber and some plastics. We are well aware of the properties of various materials and the advantages and disadvantages of mold design. We will recommend suitable materials and professional design advice for our clients.
We specialize in manufacturing high-performance plastic egg trays through advanced injection molding technologies. As a leading supplier of custom plastic components, we cater to poultry farms, egg distributors, food logistics companies, and agricultural packaging brands. Our services focus on delivering tailored plastic egg trays that optimize egg protection, stacking efficiency, and sustainability – from mold design to mass production and partial assembly.



Whether you need standard 6/12/30-egg trays or fully customized configurations, we provide solutions that balance cost, durability, and environmental compliance.
Key Structures & Customization Options
1. Tray Body Design
Cell Structure:
Custom Cell Sizes: Adapt to egg dimensions (small, medium, large, or jumbo eggs) with diameters ranging from 40mm to 55mm.
Reinforced Walls: Anti-crack design with 1.2–2mm wall thickness for impact resistance during transport.
Ventilation Holes: Precision-molded airflow slots (2–5mm) to prevent moisture buildup and ensure freshness.
Stackability:
Interlocking ridges on tray base/top for secure vertical stacking (up to 10 layers).
Optional corner reinforcements to prevent deformation under heavy loads.
2. Partition Walls & Grid Patterns
Flexible Layouts:
6-cell, 12-cell, 24-cell, or 30-cell configurations.
Modular designs for mixed-size egg packaging (e.g., 12 standard cells + 6 jumbo cells).
Material Optimization:
Honeycomb or ribbed grid patterns to reduce weight while maintaining structural integrity.
3. Edge & Handle Features
Ergonomic Handles:
Integrated grip slots or overmolded TPE handles for easy carrying.
Reinforced edges to prevent bending during manual handling.
Tamper-Evident Seals:
Optional snap-fit lids or shrink film attachment points.
4. Compatibility with Automation
Conveyor Belt Integration:
Flat-bottom designs for robotic pick-and-place systems.
RFID tag slots or barcode labeling areas for traceability.
Material Selection for Egg Trays
1. Polypropylene (PP)
Key Benefits:
Lightweight (density 0.9–1.1 g/cm³) with excellent chemical resistance.
Withstands repeated sterilization (up to 120°C) for reusable trays.
FDA-compliant for direct food contact.
Applications:
Reusable trays for industrial egg processing plants.
2. High-Density Polyethylene (HDPE)
Key Benefits:
High rigidity and moisture resistance, ideal for cold storage.
UV-stabilized options for outdoor transportation.
Applications:
Single-use trays for supermarkets or export logistics.
3. Polystyrene (PS)
Key Benefits:
Cost-effective for disposable packaging.
Smooth surface for easy labeling.
Applications:
Budget-friendly trays for local farm distribution.
4. Recycled & Bio-Based Materials
Options:
Post-Consumer Recycled (PCR) PP/HDPE: 30–100% recycled content, reducing carbon footprint.
PLA (Polylactic Acid): Compostable material for eco-conscious brands (suitable for short-lifecycle use).
Starch-Blended Polymers: Biodegradable alternatives with enhanced flexibility.
Certifications:
BPI, OK Compost, and EU 10/2011 compliance available.
Advanced Injection Molding Process
1. Precision Mold Design
Tooling Expertise:
Multi-cavity molds (up to 48 cavities) for high-volume output (10,000+ trays/day).
Conformal cooling channels to reduce cycle time by 20–30%.
Sliding cores and lifters for complex undercuts (e.g., handle slots).
Prototyping:
3D-printed prototype validation within 5 days.
2. Material Processing
Injection Parameters:
High-speed injection (clamping force 150–600 tons) for uniform wall thickness.
Gas-assisted molding for thicker ribs without sink marks.
Eco-Friendly Additives:
Antimicrobial agents (silver ions) for hygiene-critical applications.
Anti-static additives to repel dust in automated facilities.
Post-Molding Enhancements
Surface Treatments:
Texture etching (grit patterns) for anti-slip stacking.
In-mold coloring to eliminate post-painting.
Assembly Services:
Ultrasonic welding for attaching hinged lids.
Pad printing for batch numbers or logos.
|
Product Name |
Plastic collar molding |
|
Pls provide |
2D, 3D, samples, or the size of the multi-angle pictures |
|
Mould Time |
20-35 Days |
|
Product time |
7-15 Days |
|
Mould precision |
+/-0.01mm |
|
Mould life |
50-100 million shots |
|
Producing Process |
Audit drawings - mold flow analysis - design validation - Custom Materials - mold processing - core processing - electrode machining - Runner system processing - parts processing and procurement - machining acceptance - cavity surface treatment process - complex mode Die - The entire mold surface coating - Mounting plate - mold sample - sample test - sending samples |
|
Mould cavity |
One cavity, multi-cavity or same different products be made together |
|
Mould material |
P20,2738,2344,718,S136,8407,NAK80,SKD61,H13 |
|
Runner system |
Hot runner and cold runner |
|
Base material |
P20,2738,2344,718,S136,8407,NAK80,SKD61,H13 |
|
Finish |
Pitting the word, mirror finish, matte surface, striae |
|
Standard |
HASCO, DME or dependent upon |
|
Main technology |
Milling, grinding, CNC, EDM, wire cutting, carving, EDM, lathes, surface Finish, etc. |
|
Software |
CAD,PRO-E,UG Design Time: 1-3 days (normal circumstances) |
|
Product material |
ABS,PP,PC,PA6,PA66,TPU,POM,PBT,PVC,HIPS,PMMA,TPE,PC/ABS,TPV,TPO,TPR,EVA,HDPE,LDPE,CPVC,PVDF,PPSU.PPS. |
|
Quality system |
ISO9001:2008 |
|
Establish time |
20days |
|
Equipment |
CNC,EDM,Cutting off Machine,plastic machinery,etc plastic suitcase mould zhe jiang |




We are Custom Plastic Mold factory. Our factory is plastic injection mold maker. we has 17 years of experience in professional custom plastic mold and 10 years of foreign trade experience. We are custom Plastic Mold supplier. We can provide custom Plastic Mold service. Our factory can make the Injection molded plastic parts, and the quality of the products will satisfy you.
We have more than 50 high-end machines and hundreds of engineers and designers. We can provide one-stop service, from product design - mold making - product production - product packaging - transportation. We have a complete production chain. We can meet all your requirements.
Professional custom mold service, Plastic mold design and manufacturing .plastic product production, product design, mold design, blow mold customization, rotational mold customization, die-casting mold customization. 3D printing services, CNC manufacturing services, product packaging, customized packaging, shipping services.









We always adhere to the principles of quality first and time first. While providing customers with the highest quality products, try to maximize the production efficiency and shorten production time. We are proud to tell every customer that our company has not lost any customer since its establishment.If there is a problem with the product, we will seek a solution actively and take responsibility to the end.
Q1: Are you trading company or manufacturer ?
A: We are manufacturers.
Q2. When can I get the quotation?
A: We usually quote within 2 days after we get your inquiry.
If you are very urgent, please call us or tell us in your email so that we can quote for you first.
Q3. How long is the lead-time for mold?
A: It all depends on the products' size and complexity. Normally, the lead time is 25 days.
Q4. I have no 3D drawing, how should I start the new project?
A: You can supply us a molding sample, we will help you finish the 3D drawing design.
Q5. Before shipment, how to make sure the products quality?
A: If you don't come to our factory and also don't have the third party for inspection, we will be as your inspection worker.
We will supply you a video for production process detail include process report, products size structure and surface detail, packing detail and so on.
Q6. What is your payment terms?
A: Mold Payment: 40% deposit by T/T in advance, 30% second mold payment before sending out the first trial samples, 30% mold balance after you agree the final samples.
B:Production Payment: 50% deposit in advance, 50% before sending out the final goods.
Q7: How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit for best quality products.
2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.