Injection Wheelie Bin Moulding

Injection Wheelie Bin Moulding refers to a large-capacity garbage storage container produced by manufacturing core structures such as bin bodies and lids through large-scale plastic injection molding processes, then assembling them with accessories such as rollers and handles. Its core feature is using one-piece injection molding to achieve a seamless bin body (volume usually 120L-240L, some industrial bins up to 1000L). Compared with traditional metal bins (easy to rust) or manually spliced plastic bins (poor sealing), it has the advantages of strong weather resistance, impact resistance, leakage prevention, and easy cleaning. It is widely used in urban streets, communities, schools, factories and other scenarios, adapting to mechanized garbage collection and transportation (can cooperate with garbage compression trucks for automatic dumping).

P&M Injection Wheelie Bin Moulding Introduction

A、Core Characteristics of Injection Wheelie Bin Moulding

1. Superior Weather Resistance, Adapting to Outdoor Environments

Injection wheelie bins are exposed to the outdoors for a long time and need to withstand extreme environments such as high and low temperatures, ultraviolet rays, rain and snow: the commonly used HDPE (high-density polyethylene) material, after anti-UV modification, can maintain stable performance in the temperature range of -40℃ to 60℃ (no embrittlement at low temperatures, no softening and deformation at high temperatures); after 1000 hours of UV aging test, the impact strength retention rate reaches more than 80%, and the color fading degree is ≤ level 3 (GB/T 16422.3 standard), avoiding material aging and cracking caused by long-term exposure; at the same time, HDPE has a smooth surface and strong water resistance, no leakage or mildew in rainy and snowy weather, and the service life can reach 5-8 years, which is 2-3 times that of traditional metal bins.

2. High Impact Resistance and Load-Bearing Performance, Strong Durability

Bins are prone to collision during transportation and dumping. The injection molding process can improve durability through structural optimization and material modification: the bin body adopts a "double-wall structure" (inner layer thickness 3-4mm, outer layer thickness 2-3mm), with reinforcing ribs (spacing 50-80mm) in the middle, and the impact strength reaches more than 20kJ/m² (can withstand a drop of 1.5m without breaking); the bottom is designed with a thickened load-bearing area (thickness 5-6mm), with a static load-bearing capacity of more than 500kg (adapting to the pressure when the garbage compression truck hook dumps); the edge of the bin mouth adopts a circular arc transition design (radius R5-R8mm) to avoid collision damage during handling, and at the same time enhance the edge tear resistance, no deformation after long-term use.

3. Sealed and Leak-Proof, Environmental Protection and Pollution-Free

The one-piece injection-molded bin body has no splicing gaps, which can effectively prevent the leakage of garbage leachate (such as kitchen waste juice, rainwater mixture): the bin lid and bin mouth adopt a "rubber sealing ring + snap-on closure" structure, and the sealing performance meets the GB/T 19277.1 standard (leakage ≤5mL/h), avoiding leachate pollution of soil and groundwater; the inner wall of the bin body is smooth (Ra≤0.8μm), no depressions or dead corners, and can be cleaned with a high-pressure water gun without garbage residue; at the same time, HDPE material is non-toxic and odorless, meeting the GB 4806.7-2016 food contact standard, and there is no risk of material precipitation even when storing kitchen waste, avoiding secondary pollution.

4. Humanized Structural Design, Easy to Operate

For the convenience of garbage collection and transportation, the injection wheelie bin is designed with a number of humanized functions: reinforced handles (with built-in metal bushings to improve load-bearing) are set on both sides of the bin body for manual handling; 2-4 high-wear rubber rollers (diameter 150-200mm, rolling resistance ≤50N) are installed at the bottom, which can be easily pushed even when full of garbage (the full weight of a 120L bin is about 80kg), adapting to short-distance movement scenarios such as communities and streets; some styles are designed with an "inclined dumping structure" (the bin body and roller axis form an angle of 15°-20°), and the garbage compression truck can easily tilt the bin body by 45°-60° through a hook to achieve automatic dumping without manual lifting, reducing the labor intensity of cleaners.

B、Production Process of Injection Wheelie Bin Moulding

1. Product Design and Mold Development

First, determine the core parameters of the bin according to the use scenario: municipal street bins focus on weather resistance and large capacity (mainly 240L), community bins emphasize flexibility and sealing (mainly 120L), and industrial bins require high load-bearing (500L-1000L). Draw a 3D model through CAD/CAE software (such as SolidWorks, ANSYS), focusing on designing: the double-wall structure of the bin body and the layout of reinforcing ribs (ensuring a balance between rigidity and lightweight), the size of the sealing groove at the bin mouth (adapting to the rubber sealing ring, gap ≤0.5mm), and the roller installation interface (reserving metal bushing holes, tolerance ±0.1mm). In the mold design stage, a large two-color injection mold (integrated molding of the bin body and reinforcing ribs) is used, and the mold cavity size needs to reserve a shrinkage rate of 2.5%-3% for HDPE material; the gating system adopts a hot runner design (avoiding gate residues affecting appearance and sealing), and the cooling system arranges water channels in zones according to the thickness of the bin body (cooling time 20-30s for the 3mm thick area, 30-40s for the 5mm thick area) to ensure uniform cooling without warping. The mold material is S136 stainless steel (strong corrosion resistance, suitable for outdoor bin molds) or H13 hot work mold steel (good wear resistance, suitable for mass production). A single mold can weigh 5-10 tons and needs to be processed by large CNC milling machines and EDM equipment, with a cavity precision of ±0.2mm.

2. Raw Material Preparation and Injection Molding

The raw material is mainly HDPE, and modifiers are added according to functional requirements: anti-UV agent (0.5%-1%, improving weather resistance), antioxidant (0.2%-0.5%, delaying aging), color masterbatch (2%-3%, commonly green, blue, gray, meeting the municipal waste classification color standard). During raw material preparation, HDPE particles are mixed with additives and put into a large dryer (capacity 1000-2000kg, temperature 80-100℃, time 4-6 hours) to completely remove moisture (avoiding bubbles and shrinkage cavities after injection molding). Injection molding requires a large horizontal injection molding machine (clamping force 1600-3000 tons, injection volume 5000-10000g), and process parameters are set: barrel temperature 160-200℃ (front section 160-180℃, middle section 180-190℃, rear section 190-200℃), injection pressure 80-120MPa, holding pressure 60-80MPa, holding time 20-30s, cooling time 30-60s (adjusted according to the thickness of the bin body). During injection, molten HDPE is evenly injected into the mold cavity through the hot runner. After cooling and setting, the bin body blank is demolded through a large ejection mechanism (combination of ejector sleeve + ejector plate), and a small amount of gate residue is manually removed after demolding (the hot runner design can significantly reduce the residue).

3. Accessory Assembly and Quality Inspection

The bin body blank needs to be pretreated first: clean the surface oil with a high-pressure water gun, then polish the sealing groove at the bin mouth (to ensure the sealing ring fits), and tap the roller installation hole (to adapt to the metal bushing). Accessory assembly includes: embedding the rubber sealing ring into the sealing groove of the bin mouth (interference fit to ensure sealing); installing metal bushings and rubber rollers (the bushing is pressed into the installation hole through a press machine, and the gap between the roller and the bushing is ≤0.1mm to ensure smooth rotation); welding or screwing the reinforced handle (the connection strength between the handle and the bin body is ≥1000N, passing the pull test); installing the bin lid hinge and buckle for some styles (ensuring the bin lid opens and closes flexibly, no loosening after closing). Quality inspection is carried out in multiple dimensions:

Appearance Inspection: Check whether there are scratches, bubbles, color differences on the bin body surface, and whether the reinforcing ribs are complete without breaking;

Performance Inspection: Leakage test (fill with water and invert for 30 minutes, no leakage), impact resistance test (drop 1.5m to the cement ground, no breaking), sealing test (pressurize the bin to 0.05MPa, hold pressure for 10 minutes, no pressure drop);

Function Inspection: Roller rolling resistance test (≤50N), dumping angle test (can be tilted 60° smoothly without jamming).

Qualified bins are printed with logos (such as garbage classification signs, manufacturer information), then packaged in batches (wrapped with stretch film to avoid transportation wear), and prepared for delivery.

P&M Injection Wheelie Bin Moulding(Specification)

P&M Injection Wheelie Bin Moulding Feature And Application

1. Municipal Public Scenarios

Core Requirements: Large capacity, strong weather resistance, adaptation to mechanized transportation, compliance with waste classification standards.

Product Features: The volume is mainly 240L and 120L, the bin body is made of HDPE anti-UV modified material, and the color is distinguished by waste type (green-kitchen waste, blue-recyclable, gray-other, red-hazardous); mechanical hook interfaces are set on both sides of the bin body to adapt to the automatic dumping of garbage compression trucks; 4 large-diameter rubber rollers (diameter 200mm) are installed at the bottom to facilitate the promotion of sanitation workers; some styles have a foot-operated opening and closing mechanism (avoiding hand contact pollution), and the bin lid sealing performance meets the GB/T 19277.1 standard to prevent odor diffusion.

2. Community and Residential Scenarios

Core Requirements: Compact and flexible, easy to store, good sealing, aesthetic adaptation to community environment.

Product Features: The volume is mainly 120L and 80L, the bin body is compactly designed (diameter ≤500mm), suitable for storage in community corridors and unit entrances; HDPE or PP/PE blended materials are used to balance weather resistance and impact resistance; the bin lid has a snap-on closure structure to prevent children from opening by mistake or pets from rummaging; some styles are designed with "hidden rollers" (can be stored at the bottom of the bin when not in use) to reduce space occupation; colors are mostly neutral colors such as light gray and off-white, which are coordinated with the community architectural style.

3. Industrial and Commercial Scenarios

Core Requirements: High load-bearing, chemical corrosion resistance, large capacity, easy cleaning.

Product Features: Industrial bins have a volume of 500L-1000L, the bin body is made of glass fiber reinforced PP or thickened HDPE (thickness 5-8mm), static load-bearing ≥800kg, which can store industrial waste (such as plastic scraps, metal debris); commercial scenarios (shopping malls, restaurants) use bins with a volume of 80L-120L, the inner wall of the bin body is smooth (Ra≤0.4μm), which can be rinsed with a high-pressure water gun or soaked with cleaning agents, no garbage residue; some chemical enterprises use acid and alkali resistant HDPE (can contact pH 1-14 solution) to avoid chemical waste corrosion; heavy-duty rollers (load ≥200kg) are installed at the bottom of the bin to adapt to heavy object handling in industrial sites.

Customization Process

Factory&About US

NingBo Plastic Metal Product Co.,Ltd (P&M) is located in Yuyao, the so-called Mould City, Plastic Kingdom, in the southern tip of Hangzhou Bay Bridge,north of Shanghai, the east of Ningbo Port,tight double line of State Road 329 on land, sea and air trafic into a network to facilitate transport.

By the abundant technical strength,scientific management methods and good after-sales service, product deeply trusted and welcomed by customers from all over the world. P&M holds improved system of development and production, to achieve mold design, plastic products manufacturing and automatic production. Our main products is design and manufacturing of plastic mold, plastic product, metal product. 90% products of our enterprise are exported to America, Europe, Germany, Japan, Australia, etc. For many years, the company has been committed to the research of raw materials. The company has its own trademark and dozens of patents, providing more convenient technical support for mold making and product production. P&M started domestic business from 2008,named Shundi Mould Factory. And opened the international market from 2014. 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.

P&M adheres to market-oriented to the quanlity of life and focus on quality service and continuous development of new products,determined to establish a better corporate image,and our friends at home and abroad to carry a wide range of business exchanges and cooperation, create brilliant.

Packing

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.

P&M Bike parts, centered around children, balances safety, health, and fun, aiming to add a bright color to children's beautiful childhood. We look forward to working together with you to serve our children.

The path of a child's growth is paved with bricks and tiles.

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?

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 24 hours.

2. Well-trained 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.