About RAPIDOPARTS
RapidoParts is your engineering-first die casting partner delivering complex aluminum castings, permanent mold solutions, and turnkey automation cells for demanding domestic and international customers.
5K+
Global Customers Served
ISO✓
9001:2015 Certified
24/7
Engineering Support
15+
Years of Die Casting Experience
Experience Smooth Die Casting
RapidoParts was incorporated as a specialized die casting division of PartMFG a precision manufacturing company founded in 2010 with a mission to bring engineering-first thinking to every component it makes. From the foundry floor to automated finishing cells, we believe die casting is a craft.
Our goal is simple: to be the die casting partner that your team can hold accountable, that delivers on commitments, and that drives results through a strong sense of ownership.
Engineering-First Philosophy
Every casting project at RapidoParts starts with DFM review Design for Manufacturability.
Our engineering support team analyzes your design, optimizes wall thickness, draft angles, and tolerances before a single mold is cut. We reduce your risk before production begins.
2010
Founded as Part of PartMFG
High Pressure Die Casting
Our core capability. We produce complex pressure-tight aluminum castings with tight tolerances, using advanced tooling and MAGMA casting simulation to validate mold fill before production. Ideal for high-volume, repeatable parts.
Permanent Mold Casting
For customers who need an option between sand and die casting, our permanent mold casting process delivers superior surface finish, excellent dimensional consistency, and reduced porosity all with lower tooling investment.
Sand Casting & Gravity Pour
Our sand casting and gravity pour casting capabilities serve customers who require low-volume, large, or complex-geometry aluminum parts. Core making, molding cope-drag operations, and automatic molding lines are all available in-house.
Turnkey Automation Cells
RapidoParts doesn't just cast we integrate. Our turnkey automation cells combine robotics, precision machining, and automated inspection into a single production ecosystem that reduces labor cost and cycle time for customers at scale.
Expanded Manufacturing Ecosystem
As a division of PartMFG, RapidoParts customers gain access to a broader on-demand manufacturing platform encompassing:
- CNC Machining & CNC Machining Sheet Metal
- Sheet Metal Fabrication & Metal Fabrication
- 3D Printing (FDM, SLA, SLS, DMLS)
- Plastic Injection Molding, Insert Molding & Two-Shot Overmolding
- Heat Treating, Surface Finishing & NDT / X-Ray Inspection
- Metallurgical NDT Laboratories & Casting Simulation (MAGMA)
Permanent Mold Casting
A balanced solution between sand and die casting: great surface finish, consistent dimensions, low porosity, with lower tooling costs.
Permanent Mold Casting
A balanced solution between sand and die casting: great surface finish, consistent dimensions, low porosity, with lower tooling costs.
and Casting/Gravity Pour
For low-volume, large or complex aluminum parts. In-house core making, cope-drag molding and automatic molding lines.
urnkey Automation Cells
Beyond casting: integrated automation with robotics, machining and inspection. Lower labor costs and shorter cycle times for mass production.
Why RapidoParts Your Engineering Partner, Not Just a Supplier
Engineering-First Approach
We proactively identify design challenges, recommend DFM improvements, and provide engineering support from quote through production leveraging diverse perspectives and sharing knowledge across your supply chain.
Faster Time to Market
Turnkey automation cells, on-demand manufacturing capacity, and a responsive team mean faster lead times and a higher success rate for your product launch timelines.
Accountability & Ownership
We hold ourselves accountable for outcomes, not just actions. Our team delivers on commitments, maintains transparency in every customer interaction, and upholds ethical principles throughout production.
Global Presence, Local Support
With domestic and international tooling partnerships, RapidoParts serves customers across North America, Europe and globally adapting flexibly to rapidly changing market dynamics and supply chain requirements.
All | Die Casting | CNC Machining | Automation | Tooling & Molds | Quality & Inspection
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Aluminum alloys are the most widely used materials for die cast parts because of their strong strength weight ratio, excellent corrosion resistance, and reliable mechanical properties. Due to aluminum’s higher melting point, the cold chamber die casting process is typically required to maintain casting quality and control temperature.
Engineers choose aluminum die casting for structural components requiring dimensional stability, good surface finish, and thermal performance. Cast aluminum provides:
- High operating temperature resistance
- Strong stiffness and durability
- Excellent thermal and electrical conductivity
- Reliable corrosion and wear resistance
We offer industry-standard aluminum alloys, including A360.0, A380.0, A383.0 (ADC12), and A413.0, selected based on application, performance requirements, and post-processing needs such as CNC machining.
Zinc alloys are ideal for die cast parts requiring fine detail, thin wall thickness, and high dimensional accuracy. The hot chamber die casting process is typically used due to zinc’s low melting point, allowing fast production cycles and excellent surface finish.
Zinc die castings offer:
- High hardness and wear resistance
- Good corrosion resistance
- Tight tolerances and repeatable quality
- Excellent fluidity for complex shapes
Common alloys include Zamak 2, Zamak 3, and Zamak 5, selected for performance and post-processing capabilities
Magnesium alloys provide one of the best strength weight ratios among metals, making them ideal for lightweight die cast components. Cold chamber die casting is used to handle magnesium’s higher melting point and control solidification.
Magnesium die cast parts feature:
- High stiffness with low weight
- Vibration damping and durability
- Good thermal and dimensional stability
- Excellent machinability for precision components
Typical alloys include AZ91D and AM60, optimized for automotive, aerospace, and electronics applications.
Brass alloys are used for die cast parts requiring high electrical and thermal conductivity, corrosion resistance, and long-term durability. Brass die casting supports precision components for industrial and electrical applications.
Brass die castings provide:
- Excellent conductivity for electrical components
- Strong corrosion and wear resistance
- Good dimensional stability and machinability
- Reliable long-term performance
Common alloys include C36000 and C38500, chosen based on application requirements and finishing needs.
Why RapidoParts Your Engineering Partner, Not Just a Supplier
Engineering-First Approach
We proactively identify design challenges, recommend DFM improvements, and provide engineering support from quote through production leveraging diverse perspectives and sharing knowledge across your supply chain.
Faster Time to Market
Turnkey automation cells, on-demand manufacturing capacity, and a responsive team mean faster lead times and a higher success rate for your product launch timelines.
Accountability & Ownership
We hold ourselves accountable for outcomes, not just actions. Our team delivers on commitments, maintains transparency in every customer interaction, and upholds ethical principles throughout production.
Global Presence, Local Support
With domestic and international tooling partnerships, RapidoParts serves customers across North America, Europe and globally adapting flexibly to rapidly changing market dynamics and supply chain requirements.
Quality & Certifications：ISO 9001:2015 and ISO 13485:2016 certified. Metallurgical NDT laboratories, casting X-ray inspection, and MAGMA simulation ensure every casting meets your specification before it ships. Precision isn’t just a tolerance spec. It’s a mindset we bring to every pour, every mold, every customer relationship. RapidoParts Engineering Team
Start Your Project With Rapidoparts
Your Valuable Custom Manufacturing Partner!
From Rapid Prototyping to Production，Quality Parts. Fast. Easy. Affordable.
- +1(502)422-1539
- info@partmfg.com
- 2110, Block A, Building 2, Sihai Yunchuang Building, Houting Community, Shajing Street, Bao'an District, Shenzhen
