Rapid Plastic Injection Molding

Low-Volume and Mass Production
Rapid Plastic Injection Molding
Rapid Injection Molding
Rapid Plastic Injection Molding Part

Rapid injection molding is excellent option for producing large quantities of parts. The lead times and costs of it are significantly reduced compared to full production tooling.

RpProto makes rapid plastic molding tools from steel or aluminium. Steel rapid injection molding typically deliver more parts than aluminium molding.

RpProto can provide cost-effective service at each stage, whether you require rapid tooling, low volume manufacturing, mass production molding making, or end-use plastic molding with tight tolerances.

Injection Molding Options

RpProto’s skilled team effectively manufactures high-quality injection molding.  To meet the needs of any industry or application, we use a variety of materials and finishes.  Here are some of the options available to you:

plastic injection molding

Plastic injection molding

It is the most common plastics processing method, and ideal for a wide range of applications, including electronic parts,food packaging, automobile components etc.

metal injection molding

Metal injection molding

Metal injection molding is cost-effective in large volumes, and has less waste material than CNC machining. As a result, it's ideal for small, intricate metal parts.

Liquid Silicone Injection Molding

Liquid injection molding

It's typically used to produce rubber parts or parts that can withstand extreme conditions. Common applications include seals, isolators, electronic components, aerospace parts and automotive parts.

Advantages of Rapid Injection Molding

Lower upfront investment

production grade materials

High speed


High quality

Materials of Injection Molding

injection molding materials
  • Acetal polyoxymethylene (POM)
  • Acrylonitrile butadiene styrene (ABS)
  • Nylon 66 (PA66)
  • Glass-filled, polyamide (PA-GF)
  • High-density polyethylene (HDPE)
  • Low-density polyethylene (LDPE)
  • Polybutylene terephthalate (PBT)
  • Polycarbonate (PC)
  • Glass-filled polycarbonate (PC-GF)
  • ABS polycarbonate (PC-ABS)
  • Polyethylene terephthalate (PET)
  • Polymethyl methacrylate (acrylic) (PMMA)
  • Polyphenylene sulfide (PPS)
  • Polypropylene (PP)
  • Polystyrene (PS)
  • Polystyrene + polyphenyl ethers (PS-PPE)
  • Thermoplastic elastomer (TPE)
  • Thermoplastic vulcanizates (TPV)

Why should you choose our injection molding service?

  • Decades of experience
                 Our engineer team has rich experience of making injection molding.
  • Advanced Equipment
                RpProto use top brand imported and Chinese made injection machines to make accurate moldings.
  • Unlimited Capacities
                Apart from our own facilities, we’ve developed excellent relationships with our partners. Injection machines ranging from 10 to 1000 tonnes are available for immediate use.
Other Types of Injection Molding
overmolding injection molding


Overmolding is a two-step injection molding process which two or more components are molded over another. Overmolding is less expensive than other production methods since it eliminates the requirement for product assembly.

Overmolding is one of the most effective manufacturing methods for mass production with multiple colours or materials. Plastic overmolded components ensure proper alignment and prevent loosening of the different parts, which improves the product’s strength.

insert molding injection molding

Insert Molding

Insert molding is used to add usually metal parts to injection molded parts during molding.

Insert molding is used in a variety of industries, such as automotive, cooking utensils, household appliances, instruments, knobs, electrical components etc. Insert moulding not only saves money on labour and assembly, but it also decreases the size and weight of the part, increases component reliability, and improves part strength and structure while allowing for more design flexibility.

Finish Options of Injection Molding

  • Pad printing
  • Polishing
  • Silk screening
  • Laser finishing
  • Custom color painting
  • Heat staking
  • Texture finishing
finish painting
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