Cedar Rapids, Iowa · Part Design & Engineering
Plastic Part Design & Engineering for Injection Molding
The cheapest place to fix a part is before it goes to tooling. BeraTek’s engineers work with you on material selection, part geometry, and assembly so the design you approve is the design that molds cleanly. The same team stays with your project from the first CAD file through production.
48-Hour
Quotes
No MOQ
No Minimum Order Quantities
One
Point of Contact

What We Do
Plastic Part Design Services
A part designed for injection molding costs less to tool, runs faster, and fails less often in the field.
Mechanical Engineering
Plastic parts that hold up under real loads, temperatures, and use. Performance, durability, and cost balanced without over-engineering.
Design for Manufacturability (DFM)
We analyze your design for what drives tooling cost and cycle time, flag the issues, and propose fixes that keep the part’s function intact.
3D CAD Modeling & Simulation
Detailed models and stress, thermal, and fill analysis before anything is cut. Problems get solved on screen instead of on the press.
Reverse Engineering
We measure and model existing parts to create accurate CAD, then refine the design for better performance or lower cost.
Metal-to-Plastic Conversion
Cut weight, reduce cost, and consolidate assemblies by moving a metal part to injection molded plastic.
Why beratek
Engineering That Starts at the Part, Not the Press
Engineering-first. We treat part design as part of manufacturing, not a step before it.
Designs built for high-volume production. Wall sections, draft, and gate location are decided before any steel gets cut.
One team, one point of contact. The engineers who design your part are the same team that runs it.
48-hour quote turnaround. Send part files and specs; hear back within two business days.
No minimum order quantities. Start small, validate the part, then scale.

Design Rules
Designing for the Mold
Good part design and good mold design are the same conversation. We design parts with the tool in mind from the start: uniform walls, enough draft to release cleanly, ribs and bosses sized to avoid sink, and undercuts minimized so the tool stays simple. Those decisions show up as lower tooling cost and shorter cycle times.
Wall Thickness
Draft Angles
Ribs & Bosses
Undercuts
Where our parts go
Industries We Serve
How it Works
From Concept to Production-Ready Design
1
Concept Development & Research
Requirements, use environment, feasibility, and early material considerations get defined before anyone opens CAD.
2
Detailed Design & Engineering
The part takes shape in CAD with real dimensions, material selection, and DFM built in from the first version.
3
Prototyping & Validation
A physical prototype through 3D printing, CNC machining, or another rapid method, tested and refined until the design is ready for tooling.
From there, the same team carries the design into tooling and production, with quotes in 48 hours and no minimum order quantities.
Common Questions
Part Design & Engineering FAQs
What’s the difference between product design and DFM?
Product design decides what the part is: its function, shape, and features. DFM decides how to make that part efficiently: wall sections, draft, gate location, and the details that drive tooling cost and cycle time. We do both, and we do them together.
Can you work from a napkin sketch, or do I need CAD?
Either works. Bring a sketch, a rough concept, an existing part, or finished CAD. We’ll meet you where the project is.
What engineering services do you offer?
Mechanical engineering, design for manufacturability, 3D CAD modeling and simulation, reverse engineering, and metal-to-plastic conversion.
What design rules do you follow for injection molded parts?
Uniform wall thickness, adequate draft, ribs and bosses sized to avoid sink marks, and as few undercuts as the design allows. We publish the numbers we use in our injection molding design guidelines.
Why choose BeraTek for part design and engineering?
One team manages your project from design through production, so nothing gets lost in a handoff. Quotes within 48 hours, no minimum order quantities, one point of contact.











