Your Reliable Plastic Injection Molding Services Supplier - DEK

Custom injection molding is ideal for plastic parts where success relies on achieving specific mechanical or aesthetic features.

Custom Plastic Injection Molding Services - Premium Quality, Fast Delivery, Cost-Effective

DEK is a China leading plastic injection molding company, we take pride in manufacturing high-quality plastic products to global clients.

You can get full-services of injection molding here, no matter what materials and what colors. By using the finest injection molding machines, we can manufacturing plastic products from the very small to large size, our clamping force from 55 to 1,650 tons with up to 64 cavities, the shot sizes from 3 to 600 oz., finished part weights can range from 4 grams to 24 lbs. In addition, we also offer additional services including mold making, plastic surface finishing, assembly needs, etc.

Customer satisfaction is the goal for DEK, whatever the requirements and tolerances for your components are, we have the capabilities to meet your expectations.

Plastic Injection Molding Services

Premium Injection Molded Parts We Did

On Demand Injection Molding Services

From prototype to mass production, by using our on-demand manufacturing services, you can get the most cost-effective solution at every stage.

Low-Volume Injection Molding

Short-Run (Low Volume) Injection Molding is a specialized service that provides a bridge between initial prototypes and high volume injection molding. Our Short run molding is ideal for small businesses or small-batch manufacturing, it can shorten your lead time, help you access new markets rapidly.

High-Volume Injection Molding

Injection molding is the best way for the mass production of plastic parts, because it can reduce unit costs and cycle time, it can ensure accurate and consistent parts. We offer specialized high volume injection molding service, can produce premium quality parts in volumes of up to millions of pieces a month.

Our Injection Molding Capabilities

Our various kinds of injection machines, experienced engineers team can support all your needs, from prototype to mass production.

Rapid Tooling

Rapid Prototype Tooling

Rapid prototype tooling uses aluminum inserts to make the tool. This method is only for small quantities, providing design flexibility, reducing the mold cost and cut down lead-time to around 1-2 weeks.

Production Tooling

Production Tooling

Ideal for mass production of plastic injection molding parts. Tooling costs are higher than rapid tooling but has significantly cost per unit. The lead-time for production tooling usually takes around 3-4 weeks.

Family Molds

Family Molds

Family molds reduce tooling cost by accepting dissimilar shapes into the same mold. This process is ideal for intermediate-volume prototypes of various shapes by leveraging the manufacturing efficiency of molding with the flexibility of custom tooling

Single Cavity Molds

Single Cavity Molds

Molds containing only one cavity, producing one unit per run.

Multi-cavity Molds

Multi-cavity Molds

Best for high-volume, repeatable parts, multi-cavity molds contain identical cavities to increase throughput and achieve a lower favorable per-unit cost.



An existing molded part is installed in the mold, then covered with new material. This two-step process enables multi-material part design flexibility by creating molds with dissimilar materials of construction

Insert Molding

Insert Molding

Inserts are placed into the mold and molding occurs around them. This allows for inserts such as helicoils to be molded in your design.

Part IMD & IML

Part IMD & IML

In-mold decoration (IMD) and in-mold label (IML) are used to create a visually extraordinary permanent appearance with graphics or labels. A variety of textures, colors and surface coatings are available, providing the possibility for innovation.

Professional Injection Molding Services To Make You Worry-Free

Premium Quality

We specialize in injection molding high-quality parts and have rich experience in complex products. Your plastic parts will be led by an expert team of engineers.

Well-experienced Services

For each order, our engineers will carry out DfM and mold flow analysis to ensure the rationality of design and production.

One-stop Solution

From design, mold manufacturing, sample testing, formal production, surface finishing, assembly, packaging, and delivery. We provide a complete one-stop service, to help you reduce the process and risk.

Variety Materials

Whether rigid plastics, flexible plastics, or rubber plastics, all we can handle with our strong injection molding capabilities, to meet your unique needs.

On-demand Production

Whether you need rapid tooling, low volume manufacturing, or mass production, we have complete manufacturing systems that can ensure you will get a cost-effective solution at each stage.

Save Costing

Due to our strong injection molding capacities and various supply chain partners, you will save 58%-70% of the cost compared to purchase locally.

Powerful Capabilities

Our clamping force from 55 to 1,650 tons, which can meet the needs of various sizes of products. And we are very good at high precision injection molding.


From quotation, production to delivery, we will actively update the latest information for you to ensure that you can easily grasp the order status.

Available Material For Plastic Injection Molding

DEK’s plastic injection molding process is suitable for a wide range of plastics, including all thermoplastics and some thermosetting plastics and liquid silicone resins. Below are the most common options.

ABS Plastic Injection Molding Services


ABS (Acrylonitrile Butadiene Styrene) plastic is a thermoplastic polymer. Its outstanding performance and low price make it one of the most commonly used plastics in the injection molding process.


PP Plastic Injection Molding Services

Polypropylene (PP)

Polypropylene (PP) is the second-most widely used plastic in the injection molding parts, it is suitable for multiple applications due to its tough and flexible consistency.


POM Plastic Injection Molding Services

Polyoxymethylene (POM)

Polyoxymethylene (POM), also named Acetal plastic or polyacetal. It is very stiff, the good wear resistance and dimensional stability make POM polymer a highly versatile engineering material.


PC Plastic Injection Molding Services

Polycarbonate (PC)

Polycarbonate (PC) plastic is a naturally transparent amorphous thermoplastic material, it is lightweight, very strong, and resilient.


PC+ABS Plastic Injection Molding Services

Polycarbonate / ABS

PC-ABS (polycarbonate-ABS) is a high-impact thermoplastic, it combines the strength and heat resistance of PC and the flexibility of ABS.


PVC Plastic Injection Molding Services

Polyvinyl Chloride (PVC)

Polyvinyl Chloride (PVC or Vinyl) is a high strength thermoplastic material, it is the world’s third-most widely produced synthetic plastic polymer.


NYLON PA6 Plastic Injection Molding Services

Nylon (PA 6)

Nylon PA 6 is a synthetic thermoplastic polymer, it is versatile, durable, and flexible, commonly used in injection molding applications.


PU Plastic Injection Molding Services

Polyurethane (PU)

Polyurethane (PUR, or PU) is an elastomer plastic, which made by combining organic compound units with carbamate (urethane).


PMMA Plastic Injection Molding Services

Acrylic (PMMA)

Acrylic Plastic, also known as plexiglass, is one of the clearest materials. Due to the low pricing, high transparency, and lightweight, it is an ideal replacement for glass in many applications.


PS Plastic Injection Molding Services

Polystyrene (PS)

Polystyrene (PS) is a clear, amorphous, nonpolar commodity thermoplastic that is easy to process. As a hard, solid plastic, it is widely used in the consumer products market.


PE Plastic Injection Molding Services

Polyethylene (PE)

Polyethylene (or polythene) is a lightweight, durable thermoplastic with a variable crystalline structure. It is one of the most widely produced plastics in the world.


HDPE Plastic Injection Molding Services

High Density Polyethylene (HDPE)

High-density polyethylene (HDPE) is a thermoplastic polymer produced from the monomer ethylene, it is widely used in plastic bottles, milk jugs, shampoo bottles, bleach bottles, cutting boards, etc.


PEI Plastic Injection Molding Services

Polyetherimide (PEI)

Polyetherimide (PEI) is an amorphous, amber-to-transparent thermoplastic with high mechanical strength and rigidity. PEI characteristics are similar to the related plastic PEEK.


PEEK Plastic Injection Molding Services


Polyether ether ketone (PEEK) is an organic thermoplastic polymer that has a high-performance engineering plastic with outstanding resistance to chemicals, excellent mechanical strength.


Available Surface Finishes Class

Smooth and glossy finish plastic part

Smooth and glossy finish

If your plastic parts require the smoothest finish, SPI grades A1, A2 and A3 are recommended. The molds in these grades will use hardened tool steel, the surface of the mold is polished by grit diamond. The mirror gloss provides a smooth gloss almost like a mirror. Products such as sun visors, plastic mirrors and optical products are made using such finishes.

Semi-glossy finish plastic part

Semi-glossy finish

If your plastic parts require the Semi-glossy finish, SPI grades B1, B2, and B3 are recommended, the semi-glossy finish is a good way to remove the processing, tooling marks. In the mold with a semi-glossy finish, grit paper will be used for grinding.

Matte finish plastic part

Matte finish

For plastic products that need a matte finish, we recommend SPI grades C1, C2, C3. The mold used for the matte finish is polished with gritstone. Matte finish is widely used in industrial parts, consumer goods, and other fields.

Textured finish plastic part

Textured finish

SPI grades D1, D2, and D3 are recommended if the part requires a textured finish. Molds for textured finishes are first ground with the dry blast and then dry sprayed with alumina and sometimes glass beads. A textured surface provides a good grip quality, conceals deformations and traces, and sometimes even helps to mask fingerprint stains.

Additional Finishing and Coating Options

Finishing or coating is applied after machining and can change the appearance, surface roughness, hardness, and chemical resistance of the produced parts.

Additional Processing Services

In addition to injection molding and coating services, our one-stop solution can also provide assembly, packaging, and other services, to save your time and cost.

Threaded Inserts


Packaging Service

How To Start?

Send Inquiry

Send your 2D/3D CAD drawings and requestions via the Online Form or email

Confirm Order

Receive our quotation within 24 hours, and then confirm the order to us.

Start Production

After confirming the order, we will arrange the production immediately.

We're Ready For Your Next Project

Looking for a reliable injection molding supplier? You are in the right place now, DEK has more than 18 years of experience in custom plastic injection molding, trusted by Huawei, DJI, etc.