Custom Injection Molding Services
From DFM and precision mold making to low-volume and mass production, Maidder delivers reliable custom plastic parts through one coordinated engineering and manufacturing team.
Certification + Compliance
ISO 9001:2015 | ISO 13485:2016 | AS9100D | ITAR
15+
Years of Experience
500+
Mold Projects Delivered
100+
Materials Supported
30–2,000
Ton Molding Capacity
24-Hour
Engineering Response
Injection Molding Processes
Maidder delivers end-to-end prototype manufacturing services, from 3D printing and CNC machining to urethane casting and rapid injection molding. We turn your design ideas into precise, functional prototypes rapidly, shortening development cycles and de-risking your product launch.
Plastic Injection Molding
- Wide range of thermoplastics
- Tight tolerances and quality
- Low-to-high volume production
Liquid Silicone Rubber Molding
- Medical-grade and food-safe LSR
- Overmolding and insert options
- Excellent clarity and flexibility
Overmolding
- Multi-material combinations
- Improved grip and performance
- Functional & aesthetic finishes
Insert Molding
- Metal & plastic integration
- Strong bonding & alignment
- Fewer assembly operations
Gas-Assist Molding
- Reduced sink marks & warpage
- Lightweight hollow structures
- Lower material & cycle costs
Two-Shot Molding
- Two materials or colors
- Soft-touch & sealing features
- Integrated product functionality
From DFM to Stable Injection Molding Production
Resolve Injection Molding Risks Before Tooling Begins
Avoid Costly Tooling Rework
Our engineers review part geometry, material behavior, mold structure and assembly requirements before mold cutting. Early DFM and mold flow analysis help reduce tooling revisions, molding defects and costly production delays.
Mold Flow and Warpage Analysis
Predict filling, pressure, cooling and deformation risks.
Tolerance and Assembly Check
Confirm shrinkage, clearances and critical interfaces.
Parting Line Optimization
Balance moldability, appearance and tool reliability.
Material Selection Review
Match resin performance to product and molding requirements.
Wall Thickness Analysis
Detect sink, void, cooling and warpage risks.
Draft Angle Evaluation
Improve mold release and protect cosmetic surfaces.
Undercut and Ejection Review
Optimize slides, lifters and ejector locations.
Gate Location and Type
Improve filling balance and reduce visible defects.
Tooling & Molding Capabilities
Advanced tooling equipment and engineering capabilities ensure precision, efficiency and reliable injection molding production.
Mold Design & Build
Precision molds designed and built for reliable injection molding production.
Mold Making Machines
Advanced CNC, EDM and grinding equipment for high-accuracy mold manufacturing.
Part Size Capability
Support small precision components and large plastic parts with flexible tooling solutions.
Mold Cavities
Single and multi-cavity molds optimized for quality, efficiency and production volume.
Tight Tolerances
Maintain critical dimensions through precision machining and advanced inspection control.
Production Range
Maintain critical dimensions through precision machining and advanced inspection control.
Quality Control from Mold Trial to Production
Maidder integrates material inspection, first-article validation, in-process monitoring and dimensional measurement to maintain consistent quality throughout injection molding production.
- Incoming Material Inspection
- First Article Validation
- In-Process Monitoring
- Final Dimensional Inspection
- CMM Measurement
- Production Traceability
Materials & Finishes
Common Plastic Materials
A wide range of engineering plastics and general-purpose materials to meet diverse application needs.
ABS
PC
PC/ABS
PP
PA (Nylon)
POM
PMMA
TPU/TPE
PBT
LSR
Surface Finishes & Secondary Operations
Value-added finishing and secondary operationsto enhance appearance, functionality and efficiency.
Plastic Injection Molding Guide: From DFM to Production
Learn how part design, material selection, mold planning, process validation and quality control reduce tooling risks and support stable injection molding production.
What files do you need for an injection molding quote?
We prefer STEP, STP, IGES, X_T or native 3D CAD files. Please also provide 2D drawings, resin, quantity, finish and critical tolerance requirements.
What factors affect injection mold cost?
Mold cost depends on part size, complexity, cavities, steel grade, runner system, side actions, surface finish, expected volume and inspection requirements.
What plastic materials can you injection mold?
Mold cost depends on part size, complexity, cavities, steel grade, runner system, side actions, surface finish, expected volume and inspection requirements.
Do you support low-volume injection molding?
Mold cost depends on part size, complexity, cavities, steel grade, runner system, side actions, surface finish, expected volume and inspection requirements.
What injection molding tolerances can you achieve?
Mold cost depends on part size, complexity, cavities, steel grade, runner system, side actions, surface finish, expected volume and inspection requirements.
Do you provide samples before production?
Mold cost depends on part size, complexity, cavities, steel grade, runner system, side actions, surface finish, expected volume and inspection requirements.
What quality reports can you provide?
Mold cost depends on part size, complexity, cavities, steel grade, runner system, side actions, surface finish, expected volume and inspection requirements.
Can you sign an NDA and protect my design files?
Yes. Maidder can sign an NDA before project review. CAD files, drawings and project information are limited to authorized engineering and production personnel.