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Insert Molding Service

Insert Molding is the manufacturing process of overmolding a preformed part (typically metal) with a heated thermoplastic resin to produce a single unit. Molding inserts can be simple items such as rods, thread, or a knife blade, but they can also be complex.

Anpllo specializes in small custom, precision plastic parts and assemblies to offer customers a source from project start through full production.

Strong And Sturdy

Anpllo specializes in insert molding services.

We are an ISO certified business offering engineering, custom injection molding and contract manufacturing. Our customers bring demanding applications that require the service of insert molding services, best served by expert engineers.

Insert Molding In China. We take pride in the workmanship of our insert molding services services. All Anpllo tools and production parts are made in the USA. We run three shifts per day, five days per week, and weekends are run on an as-needed basis.

All our injection molding presses are equipped with servo-driven robotics for high-speed automation and insert molding services production.

Clients trust Anpllo to be the insert molding services experts in engineering and manufacturing. Our engineers’ experience includes mold qualifications in medical IQ/OQ/PQ, high volume automation in consumer packaging, and engineering-grade resins and ultra-polymers in electronics.

We have developed hundreds of products, some with insert molding services, and manufactured millions of parts annually for the medical industry. Medical devices include point of care diagnostics, microfluidics, and pharmaceutical drug delivery applications.

Why Choose Us

Engineering and general purpose plastics are being used in our Injection Moulding section to produce a wide range of parts from audio-video, hi-fi and multimedia speakers, telecommunications, consumer product, precision parts for I.T. hardware, engineering hardware, specialized equipment, fax machines, scanners and scales. Well-maintained machines ranging from 20 to 800 tons, totaling 52 units supported by ancillary equipment such as robotic sprue pickers, heat & cool temperature controllers, chillers, dehumidifiers, dryers and autoloader are being manned by skilled, well-trained staff and technical team and processes are subjected to stringent inspection to ensure conformity to our customers’ requirements.

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About Insert Molding

There are many substrates used in insert molding, but the most popular is brass threaded inserts and bushing. In addition, many companies make custom inserts that can be insert molded. It is really left up to the imagination when deciding what type of inserts can be over molded.

The benefit to insert molding is that parts can be mass produced faster than machining whole parts out of metal. Even though insert molding adds to the cycle time (typically 15 seconds per insert) it is still much faster than cnc machining a part from a solid block. Furthermore, by insert molding metals where necessary and replacing the rest of the part with plastic will in turn reduce the overall weight of the part.

Did you know you can insert mold plastic parts? This process is called over molding and it lends itself when you need two or more different materials in the same part.

Furthermore, Anpllo is one of the few injection molding companies that offer over molding and insert molding services.

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Benefits of Insert Molding

Plastic injection insert molding is an effective alternative to assemblies manufactured using soldering, adhesives or fasteners, with benefits including:

  • Reduced size and weight (Insert molding allows for reduction of part size and weight because parts are joined with strong, light-weight plastic resin and fasteners or connectors are eliminated)
  • Improved component reliability (Insert molding of components ensures proper alignment, prevents loosening and the plastic resin can provide improved resistance to vibration and shock)
  • Enhanced design flexibility (Custom plastic insert molding allows for almost unlimited configurations and material combinations)
  • Robotic automation in the insert molding process allows for fast and precise placement of inserts
  • Improved part strength and structure (Insert molding combines the physical strength of the plastic resin and insert to produce one seamless plastic part)
  • Consolidation of components (Insert molded components enable part and inventory cost reductions)
  • Reduced assembly and labor costs (Molded as one assembly)

Design considerations

Anpllo injection molding services enable you to manufacture parts to meet a variety of functional needs. Unlock the potential of your insert molding project with the following injection molding design considerations:

Insert molding general process information

Maximum part size​800 x 800 x 400 mm
31.5 x 31.5 x 15.7 in
Minimum part size1 x 1 x 1 mm
0.04 x 0.04 x 0.04 in
ToleranceBest achievable tolerance: ±0.001″ (0.025mm)
Standard: ±0.005″ (0.127mm)
For larger part tolerances please contact a Fast Radius engineer
Lead timeAs low as 2 weeks for T1 samples
After T1 sample approval, lead time for < 10,000 parts is as low as 1 week
Tool validationStandard process is to produce a small set of T1 samples for approval before initiating full production
Maximum press size1600T
Minimum order size100 parts and $5000
Set-up fee$500 per mold per order (applies to sample runs after initial T1 samples or engineering changes)

Insert molding tooling information

Rapid toolingMolds with steel cavity and core with a shot life of 5,000-10,000 shots
Typically machined in 2 weeks
Production toolingSteel tool with shot life up to 1M shots
Ability to integrate side-pulls or cam-actions
Typically machined in 3 weeks
Multi-cavity or family moldsMultiple identical cavities or family of parts machined into a single tool
Allows for more parts to be produced per shot, minimizing unit costs
InsertsInserts are placed into the mold and molding occurs around them to extend tool life for critical features
Allows for inserts such as helicoils to be molded in your design

Insert materials

MetalPlastic
BrassPolypropylene (PP)
Stainless steelPolyamide (Nylon)
Aluminum 6061Acrylonitrile Butadiene Styrene (ABS)
Aluminum 7075

Insert molding colors, finishing, post-processing

ColorsFinishing and post-processing options
Pantone color matchingStandard SPI finishes (A2-D3)
RAL color matchingMold-tech textures also available
 Pad printing
 Inserts (e.g. heat stake inserts)
 Light assembly
 Protective packaging / film

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