Plastic Injection Molding

Description

Injection molding is a manufacturing process for producing parts by injecting molten material into a mold. Plastic Injection Molding is one of the most frequently used manufacturing processes for creating plastic parts. Thanks to its high-precision, repeatability, and cost efficiency at scale, plastic injection molding is used for a variety of products and parts from the smallest insert up to large automotive & aerospace parts.

The plastic injection molding process requires an injection molding machine, raw plastic material, and a machined mold. The raw plastic material is first melted in the injection unit and is then injected into the mold, where it cools and solidifies into the final plastic part.

The key steps in the injection molding process include:

-Clamping

The two sides of the mold are closed and clamped shut.

-Injection

The material is fed into the machine and pushed towards the mold. While this is happening, the material is melted by heat and pressure. The plastic is then injected into the mold, this process is called “Shot”.

-Cooling

The plastic in the mold cools and solidifies into the shape of the part.

-Ejection

After the part cools, it is ejected from the mold.

Auwell offers 2 business models to meet the needs of the client for plastic injection molding projects. Namely supply tooling only models or, final products models.

-Tooling Only Models

For this business model, Auwell offers the tooling design based on the product design and machine data for client confirmation, the details include tooling structure, lifetime, tooling material, hardness, etc. Clients may provide completed tooling designs for production. For this tooling only option, for standard parts, we will use the most common with globally recognized one for easy maintenance. In general, this option is preferred for large size and high-volume products, Plastic Injection Tooling Automotive is a typical catalogue for this business model.

-Final Products Models

For this business model, Auwell is responsible for the plastic injection molding parts, and to meet the client’s specifications. The type of injection machine and tooling structure/design used is decided by our team. For this business model, once the client pays the tooling cost, Auwell will be responsible for tooling maintenance and replacement for the entire product lifetime. This model is preferred for small sizes and precise plastic injection molding parts. Please refer to “Plastic Injection Parts” section for more details.

Another key difference of the two-business model is, for “Tooling Only Model”, the mold cost is considerable higher than “Final Products Model” as for “Final Products Model”, Auwell does not make any margin from the tooling development. For “Final Products Model”, if the clients want to take the mold or, shift to another supplier, it is not guaranteed that the mold works properly at another machine at another manufacture, and, a certain proportion of mold development cost will be charged before mold transferring.

Apart from plastic injection molding, we also provide the following services:

-Rapid 3D printed prototypes

-Overmolding

-Insert molding

-Thermoforming

-Rubber & Silicone Molding

Technical Specifications

-Material

Following plastic material available for our plastic injection molding services:

Ø PA 6/6 | Polyamide 6/6, Nylon 6/6
Ø PARA | Polyaryl Amide
Ø PBT | Polybutylene Terephthalate, Valox
Ø PBT-PET | Polybutylene Terephthalate-Polyethylene Terephthalate
Ø PC | Polycarbonate
Ø PC-ABS | Polycarbonate-Acrylonitrile Butadiene Styrene
Ø PC-PBT | Polycarbonate-Polybutylene Terephthalate, Xenoy
Ø PC-PET | Polycarbonate-Polyethylene Terephthalate
Ø PCT | Polycyclohexylenedimethylene Terephthalate
Ø PE | Polyethylene
Ø PE-PP | Polyethylene-Polypropylene
Ø PE-PS | Polyethylene-Polystyrene
Ø PEBA | Polyether Block Amide
Ø PEEK | Polyether Ether Ketone
Ø PEI | Polyetherimide, Ultem
Ø PES | Polyether Sulfone
Ø PET | Polyethylene Terephthalate, Rynite
Ø PLA | Polylactic Acid
Ø PMMA | Polymethyl Methacrylate, Acrylic
Ø POM | Acetal Polyoxymethylene, Delrin
Ø PP | Polypropylene
Ø PPA | Polyphthalamide
Ø PPS | Polyphenylene Sulfide, Ryton
Ø PS | Polystyrene
Ø PS-PPE | Polystyrene-Polyphenyl Ethers, Noryl
Ø PSU | Polysulfone, Udel
Ø PVC | Polyvinyl Chloride (Shore D)
Ø PVDF | Polyvinylidene Fluoride
Ø SAN | Styrene Acrylonitrile
Ø TPO | Thermoplastic Polyolefin
Ø TPU | Thermoplastic Polyurethane (Shore D)
Ø Custom-sourced Resin

-Moldbase

LKM, HASCO, 1.1730, S50C, S55C, 1050, 1055

-Active Elements

Ø P20, 1.2311, 1.2312, 1.2738, 1.2343, 1.2344, H11, H13, 420
Ø ASSAB: 718, 718S, 718H, S316/S316H/S316 SUP/S316H SUP, POLMAX/168
Ø SAARSTAHL: GS738, GS2311, GS2312, GS638, GS688, GS2316
Ø DAIDO: NAK80, NAK55, PX88, PX4, PX5, S-Star(A)
Ø BOHLER: M201, M202, M238, M300 ESR, M310 ESR, M310H ESR

-Hotrunner

YUDO, INCOE

-Mould Surface

Photo etching, erode structure, shot blaster, line polishing, high gross polishing, mirror Polishing.

-Machines: 100-3,000 ton closing force

Advantages

-Rich Experience

More than 20 years of experience in plastic injection molding tooling development and part production, especially to the European and North American markets, with solid understanding of the material, technical and quality standards worldwide.

-Fast Turnaround

Generally, we provide a quotation within 3 working days. Combining the latest manufacturing technologies and facilities, Auwell is able to provide fast prototypes in 3 working days, for simple and small size tooling, we are able to deliver first sample in 4 weeks.

-Comprehensive Solution Provider

Auwell provides comprehensive services for plastic injection molding projects starting from designing, through prototyping, tooling/fixture development, sampling, mass production, and to logistic and post-sale support.

-Rigid QC Policies

The most rigorous quality policy starts from material control, and is followed through to final pre-shipment inspection. Material certificates include the mill certificate, 3rd party chemical components, and mechanical property reports, as well as RoHS and REACH reports upon request. We structure our processes, creating Flow Charts and Control Plans before production, making sure all QC processes are in accordance with ISO9001-2015 requirements and drawing specifications.

-Flexible Payment Term

For tooling, the general payment term is 50%-40%-10%, meant 50% deposit, 40% after first sample free and 10% 2 weeks after client receive tooling or first batch product delivery. For mass production, we offer flexible payment terms, reasonable credit terms will be given, the client only pays when they are happy with the product they received. For long-term projects, we offer call-off inventory services for fast delivery requirements.

Applications

-Plastic injection molding products have widely been used in almost all industrial sectors including: 

-Aerospace and defense

-Automotive

-Agriculture Machinery

-Energy

-Electronics

-Construction

-Transportation

-Industrial

-Consumer Products

The following catalogues of plastic injection molding products are the ones which Auwell has produced and supplied to our distinguished worldwide clients. Please click the relevant pictures for details. Please be advised, most of the products are for demonstration purpose only.

Plastic Injection Mold for Automotive Parts

Plastic Injection Parts

Plastic Injection Overmolding

Plastic Thermoforming Parts

Rubber & Silicone Molding