Efficiency
High production rates with minimal waste, allowing for cost-effective manufacturing of complex parts.
Custom Injection Molding Services
We support injection molding from rapid tooling and sample validation through high-volume production, with custom mold design, controlled cycle development, and dimensional inspection for complex plastic and LSR parts.
With a focus on quality control, we deliver precision-molded parts tailored to your specific project requirements.
Request QuoteISO 9001:2015 Certified Processes
ISO 13485:2016 Medical Device
AS9100 Aerospace Quality Management
Faster Lead Time for Production Needs
In-Process Inspection with CMM
Custom Plastic Parts
Plastic Injection Molding Manufacturer
Injection molding is a highly efficient manufacturing process used to produce precision plastic parts by injecting molten material into a mold. It is recognized for its ability to create complex, high-quality components with consistency and scalability, making it ideal for both functional prototypes and mass production.
Fecision holds ISO 9001:2015, ISO 13485:2016, and AS9100 Rev D certifications—and delivers dimensional tolerances to ±0.005 mm as standard. We provide DFM review and a mold-flow analysis report for each program.
Get A QuoteKey Features
Precision
Exceptional dimensional accuracy and repeatability, ensuring consistent part quality across production runs.
Versatility
Ability to work with a wide range of materials and produce complex geometries with varying textures and finishes.
Prototyping vs. Production
Solutions for every stage of your product lifecycle, from rapid validation to large-scale manufacturing.
Prototyping
- Low-volume production (10–1000 units)
- Rapid turnaround (2–4 weeks)
- Cost-effective design validation
- Material testing and selection
- Design refinement and optimization
Production
- High-volume manufacturing (1000+ units)
- Optimized for cost efficiency
- Strict quality control protocols
- Consistent part-to-part repeatability
- Scalable production capabilities
Injection Molding Types
LSR Injection Molding
Transforms two-part liquid silicone rubber material into finished components
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Overmolding
Inject one material over an existing substrate to form a bonded, multi-material part
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Insert Molding
Embed metal or other parts into the molded part during the injection process
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Cleanroom Injection Molding
Manufacture precision molded parts in a controlled cleanroom environment for medical applications
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Large Part Injection Molding
Use high-tonnage injection molding machines to generate large parts
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Two-Shot Injection Molding
Combine two or more materials in a single molding cycle
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Gas-Assisted Injection Molding
Combines traditional injection techniques with controlled gas injection
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In-Mold Decoration/Labeling
Combines a pre-printed label or decorative film with injection molding
See MoreInjection Molding Capabilities
Our advanced facilities handle requirements ranging from small, intricate parts to large production components.
StandardTechnical Data
TolerancesAs tight as ±0.001 inches (0.025 mm)
Dimensional StabilityParts maintain shape and size over long production runs
Cycle TimeRange from 15 to 60 seconds per part
OutputUp to 1000+ parts per hour
Material WasteLess than 5%
RecyclabilityMany plastics such as PET, PP, and ABS are recyclable
Cost Per UnitOffset by low per-unit costs in mass production
Tooling LongevityHundreds of thousands to millions of cycles
Surface FinishesTypically Ra 0.4–1.6 μm
Energy EfficiencyUp to 30% improvement
Material VarietyOver 200 different plastic materials
Production Capacity
- Up to 10 million units annually
- 24/7 production capabilities
- Automated production cells
- Lean manufacturing processes
Quality Control
- CMM inspection
- Vision inspection systems
- Statistical Process Control (SPC)
- First Article Inspection (FAI)
Value-Added Services
- Assembly and kitting
- Packaging solutions
- Inventory management
- JIT delivery
Ready to Start Your Injection Molding Project?
Discuss your project requirements and get a free quote from our injection molding experts.
Injection Moldable Plastics
We work with a comprehensive range of engineering plastics and specialty materials to meet the unique requirements of your application.
Acrylonitrile Butadiene Styrene (ABS)
Key Properties:- Excellent surface finish, impact resistance, and easy to paint and plate.
- Standard for consumer electronics, appliance housings, and industrial enclosures.
- Pre-dry at 80°C / 2–4 h.
Typical Applications:
Automotive interiors, electronics housings, consumer products, toys
Polypropylene (PP)
Key Properties:- Lightest structural resin.
- Self-lubricating, chemical-resistant, living-hinge capable (0.25–0.35 mm).
- Shrinkage 1.5–2.5% — simulation advised.
Typical Applications:
Packaging, living hinges, medical pipettes, automotive parts, bottles
Polystyrene (PS)
Key Properties:- Optically clear (general-purpose), brittle.
- Low cost.
- Limited temperature resistance.
Typical Applications:
Disposable lab ware, transparent packaging, low-stress consumer product parts, optical lenses (precision grade)
High-Density Polyethylene (HDPE)
Key Properties:- Stiff and strong
- Excellent chemical resistance
- Low moisture absorption
Typical Applications:
Industrial containers, pipes, tanks, bottle caps, toys
Low-Density Polyethylene (LDPE)
Key Properties:- Flexible and tough
- Good moisture barrier
- Low cost
Typical Applications:
Flexible snap fasteners, squeeze bottle nozzle caps, six-pack ring buckles, thread-protective soft caps
Polyvinyl Chloride (PVC)
Key Properties:- Rigid or flexible with plasticisers.
- Excellent chemical, grease, and oil resistance.
- Biocompatible, ETO/gamma sterilisable, with low moisture absorption.
Typical Applications:
Medical tubing, blood bags, IV sets, catheters, oxygen masks, rigid containers, luers, blister packs, cable insulation
Polymethyl Methacrylate (PMMA)
Key Properties:- High optical clarity (92–93%) and superior UV/weather resistance.
- Biocompatible (ISO 10993), scratch-resistant, and high hardness.
- Low impact. Pre-dry at 80°C / 3–4 h.
Typical Applications:
Displays, intraocular lenses, dental prosthetics, diagnostic cuvettes, LED diffusers, light guides, lenses, fiber-optic connectors, cosmetic packaging, camera components
Polyethylene Terephthalate (PET)
Key Properties:- High clarity and gloss with excellent gas-barrier performance.
- High strength-to-weight ratio.
- Biocompatible, sterilisable, recyclable. Pre-dry at 160°C / 4–6 h.
Typical Applications:
Connector insulating housings, coil bobbins, wiper motor housings, engine shield covers
PET + Glycol Modification (PETG)
Key Properties:- Easier processing than PET
- Better impact resistance
- No stress whitening
Typical Applications:
Displays, face shields, food-contact products, medical devices
Acrylonitrile Styrene Acrylate (ASA)
Key Properties:- UV resistant
- Similar to ABS but outdoor-stable
- Good color retention
Typical Applications:
Outdoor housings, automotive exteriors, garden equipment
Polylactic Acid (PLA)
Key Properties:- Biodegradable
- Lower performance
Typical Applications:
Packaging, disposable medical products, consumer goods
Ultem (PEI)
Key Properties:- UL 94 V-0 inherently, with no FR additive.
- HDT 200°C.
- Sterilisation-compatible.
Typical Applications:
Medical device housings requiring repeated sterilisation, aerospace connector overmould bodies
Polyamide (Nylon, PA66 / PA6)
Key Properties:- High strength, wear resistance, and self-lubrication (µ = 0.15–0.35).
- Pre-dry to less than 0.2% moisture is mandatory.
- GF30 grade: HDT 240°C.
Typical Applications:
Gears, bearings, connectors, surgical instrument bodies, automotive under-hood components, fasteners
Glass-Filled Nylon (PA-GF)
Key Properties:- Higher stiffness and strength
- Improved dimensional stability versus unfilled nylon
Typical Applications:
Structural automotive parts, power-tool housings, industrial components
Polyphthalamide (Aromatic PA)
Key Properties:- Higher heat resistance than standard PA
- Good chemical resistance
- Lower moisture absorption
Typical Applications:
Automotive under-hood parts, connectors, LED housings, fuel-system components
Polyoxymethylene (Acetal / Delrin, POM)
Key Properties:- Excellent stiffness, low friction, and dimensional precision.
- Self-lubricating.
- Higher shrinkage (1.8–2.5%).
Typical Applications:
Precision gears, bearings, conveyor components, plumbing fittings, eyeglass frames, micro-valve seats, snap-fit functional parts
Polycarbonate (PC)
Key Properties:- Optical clarity, high impact, and HDT around 110°C.
- EtO/gamma sterilisation compatible.
- Pre-dry at 120°C / 3–4 h.
Typical Applications:
Safety glasses, diagnostic cartridge bodies, IV connectors, wearable device housings, headlamp lenses
Polybutylene Terephthalate (PBT)
Key Properties:- Excellent dimensional stability and very low moisture absorption (less than 0.08%).
- Good electrical insulation; UL 94 V-0 available.
- Chemical resistance; HDT 200°C for GF30 grade.
Typical Applications:
Connector housings, electronic enclosures, automotive sensor bodies, switches, circuit breakers, precision instrument parts
Glass-Filled PBT (PBT-GF)
Key Properties:- Higher stiffness and heat deflection than unfilled PBT
- Excellent dimensional stability
- Strong electrical properties and low-warpage grades available
Typical Applications:
Automotive electrical components, connector housings, industrial parts, motor end caps
Polyether Ether Ketone (PEEK)
Key Properties:- Biocompatible, radiolucent, and autoclave-stable for 1,000+ cycles.
- Highest-performance thermoplastic.
- Continuous service to 260°C.
Typical Applications:
Spinal implant components, aerospace micro-bushings, reusable medical instrument bodies, bearings, pumps, cable insulation
Polyphenylene Sulfide (PPS)
Key Properties:- Continuous service to 220°C
- Excellent chemical resistance
- UL 94 V-0; glass-filled grades available
Typical Applications:
High-temperature sensor housings, aerospace connectors, chemical-processing components, pumps, valves
Polyphenylsulfone Radel R (PPSU)
Key Properties:- Highest toughness among sulfones
- Steam sterilizable and hydrolysis resistant
- Transparent
Typical Applications:
Baby feeding bottles, medical instrument components, sterilization trays, hot-water fittings, aircraft interiors
Polyvinylidene Fluoride (PVDF)
Key Properties:- High purity and chemical resistance
- Piezoelectric properties
- UV stable
Typical Applications:
Chemical processing, battery components, solar panels, plumbing
Liquid Crystal Polymer (LCP)
Key Properties:- Extremely high flow
- Thin-wall capable to 0.1 mm with low warpage
- 5G/high-frequency compatible
Typical Applications:
Micro-pitch connector housings (0.3–0.5 mm pitch), hearing-aid components, wearable medical-device micro-housings, 5G antenna components, SMT packages
Liquid Silicone Rubber (LSR)
Key Properties:- Biocompatible
- Heat resistant, flexible, and sterilizable
- Transparent
Typical Applications:
Respiratory masks, seals, drug-contact diaphragms, wearable sensor interfaces, baby products, kitchenware
Thermoplastic Polyurethane (TPU)
Key Properties:- Flexible, highly abrasion resistant, and biocompatible.
- Ether-based grades provide hydrolysis resistance.
- Pre-dry at 80°C / 3–4 h.
Typical Applications:
Catheter bodies, wearable enclosures, auto-injector soft components, medical tubing connectors, rollers, seals, hoses, phone cases
Thermoplastic Elastomer (TPE)
Key Properties:- Rubber-like soft-touch feel
- Recyclable
- Overmold compatible
Typical Applications:
Grips, handles, seals, overmolded components, consumer goods
Thermoplastic Vulcanizate (TPV)
Key Properties:- Superior elasticity compared with TPE
- Weather resistant and durable
Typical Applications:
Automotive seals, gaskets, weatherstripping, hoses
Cyclic Olefin Polymer / Copolymer (COC / COP)
Key Properties:- High clarity
- Low moisture absorption
- Glass-like appearance
Typical Applications:
Optical lenses, medical vials, diagnostic devices
Polyphenylene Oxide / Ether (PPO / PPE)
Key Properties:- Low moisture absorption
- Good electrical properties
- Dimensionally stable
Typical Applications:
Pump housings, water-softener parts, electrical components
Common Finishes for Injection Molding
Surface treatments enhance the appearance, functionality, and durability of injection molded parts.
Spraying Coating
Applies UV-curable paint, anti-scratch coatings, and decorative color layers.
Laser Engraving
Creates permanent logos, serial numbers, and precise markings.
Pad Printing
Transfers detailed graphics and labels onto complex surfaces.
Texturing
Creates patterns, grains, and matte effects on plastic parts.
Sandblasting
Cleans and roughens surfaces or produces a uniform matte finish.
Electroplating
Deposits chrome, nickel, and other metal layers onto plastic.
Heat Transfer Printing
Uses heat and pressure to apply durable, colorful designs.
Polishing
Refines surfaces for reduced roughness and enhanced smoothness.
Injection Molding Process
Our streamlined injection molding process ensures precision, efficiency, and consistent quality from design to delivery.
Design & Engineering
Our engineering team collaborates with you to refine your part design for manufacturability, ensuring optimal mold flow, material selection, and cost efficiency.
Mold Design & Fabrication
We design and manufacture precision molds using advanced CNC machining and EDM processes, ensuring durability and dimensional accuracy for consistent part production.
Material Preparation
Plastic resins are carefully selected, dried if necessary, and prepared for molding. Colorants and additives are precisely mixed to achieve the desired properties.
Injection Molding
Molten plastic is injected into the mold cavity under precise pressure and temperature conditions. The material cools and solidifies into the desired part shape.
Part Ejection & Inspection
Finished parts are ejected from the mold and undergo rigorous quality inspection to ensure they meet all specifications and tolerances.
Finishing & Assembly
Parts may undergo additional processing such as surface treatment, painting, or assembly before final packaging and delivery.
Injection Molding Project Timeline
Efficient project execution from concept to completion.
11–2 weeks
Design & Engineering
Design review, DFM analysis, material selection, and prototype development.
24–8 weeks
Mold Design & Fabrication
Mold design, CNC machining, EDM, polishing, and mold testing.
31–2 weeks
Sampling & Validation
Initial samples, dimensional inspection, functional testing, and refinement.
4Variable
Production
Full-scale production with ongoing quality control and inspection.
51–2 weeks
Finishing & Delivery
Surface treatment, assembly, packaging, and shipping.
Injection Molding Applications
Industries We Serve
Each sector has distinct regulatory, material, and precision requirements—our team delivers compliant, production-ready parts.
Automotive
- Interior and exterior components
- Engine and underhood parts
- Electrical connectors and housings
Medical
- Diagnostic equipment components
- Surgical instruments and tools
- Medical device housings
Aerospace
- Cabin interior components
- Avionics housings and panels
- Structural components
Consumer Electronics
- Device housings and bezels
- Connectors, buttons, and charging components
- Insulators and internal structural parts
Robotics
- Actuator components
- Grippers and end effectors
- Sensor housings and covers
Industrial
- Equipment housings and control components
- Gears, guides, guards, and handles
- Seals and cable-management parts
Custom Injection Molding Design Guidelines
Follow these guidelines to optimize part design for manufacturability, cost, and performance.
Wall Thickness
Maintain uniform wall thickness throughout your part to prevent sink marks, warping, and internal stresses.
- Keep wall thickness between 0.8mm and 3mm for most applications
- Maximum thickness variation should not exceed 25%
- Use gradual transitions between different wall sections
Undercuts
Minimize or avoid undercuts whenever possible, as they complicate mold design and increase cost.
- Consider alternative designs that eliminate undercuts
- Use side actions or lifters for necessary undercuts
- Threaded features often require unscrewing mechanisms
Draft Angles
Include proper draft angles on all vertical surfaces to facilitate easy part ejection from the mold.
- Minimum draft angle of 0.5° per side for most applications
- Increase draft angle for deeper cavities and textured surfaces
- Consider 1°–2° draft for parts with tight tolerances
Ribs & Bosses
Use ribs to increase part stiffness without increasing wall thickness. Bosses provide strong mounting points.
- Rib thickness should be 50–70% of the nominal wall thickness
- Height of ribs should not exceed 3 times the wall thickness
- Bosses should have a diameter 2–3 times the hole diameter
Radii & Fillets
Use generous radii and fillets at all corners to improve part strength and mold filling.
- Minimum internal radius of 0.5mm
- External radii should be at least 1.5 times the wall thickness
- Sharp corners create stress concentrations and molding difficulties
Parting Lines
Consider the location of parting lines early in the design process to minimize their visual impact.
- Place parting lines in less visible areas when possible
- Design for a straight, simple parting line if possible
- Account for potential flash along the parting line
Need Help with Your Design?
Our engineering team provides comprehensive DFM analysis to optimize your part for injection molding.
Injection Molding Advantages
Injection molding offers numerous benefits that make it the preferred manufacturing process for a wide range of industries and applications.
Cost Efficiency
Lower per-unit costs for high-volume production, with minimal material waste compared to other manufacturing processes.
High Precision
Exceptional dimensional accuracy and repeatability, ensuring consistent part quality across production runs.
Design Flexibility
Ability to produce complex geometries with varying wall thicknesses, undercuts, and intricate details.
Production Speed
Fast cycle times and high production rates, enabling quick turnaround for large quantities.
Material Versatility
Compatible with a wide range of plastics and composites, each offering unique properties for specific applications.
Automation Potential
Easily integrated with automation systems for part removal, inspection, and assembly, reducing labor costs.
Why Choose Fecisionfor Injection Molding?
Quality Commitment
ISO 9001, ISO 13485, and IATF 16949 certified facilities with rigorous quality control processes.
Expert Team
Experienced engineers and technicians with deep expertise in injection molding processes.
Advanced Technology
State-of-the-art equipment and software for precision molding and quality assurance.
On-Time Delivery
Reliable production scheduling and logistics for consistent on-time delivery.
Customer Focus
Collaborative approach with dedicated project managers for personalized service.
Innovation
Continuous improvement and investment in new technologies and processes.
How to Work with Us
The plastic molding process involves numerous parameters that must be carefully regulated to maintain the quality and consistency of the produced components.
Submit Drawings
For a free quote, please submit a product description along with a technical drawing. We also offer reverse engineering services to assist you.
DFM & Quotation
We will provide a DFM (Design for Manufacturability) report or mold flow analysis report. Please be aware that further discussions may be needed during the process.
Mold Manufacturing
Upon your confirmation to the mold design, our team will begin making mold components, which will then be sent for inspection and assembly.
Injection Molding
Once the mold is complete, we will initiate the plastic molding process. A T1 sample will be provided for you to check whether the product details align with your specifications. After approval we will continue massive production.
Delivery
Your custom-designed plastic parts undergoes thorough inspection, will be carefully packaged, and delivered to you.
Injection Molding Product Gallery
Browse our gallery of injection molded products across various industries and applications.
Contact Us for Injection Molding Services
Ready to discuss your injection molding project?
Request a quote, and our experts will contact you shortly.
Injection Molding FAQs
What is the typical lead time for injection molding?
Prototype production typically takes 1–3 weeks. Once tooling is completed, small to medium production runs generally take 1–2 weeks.
Are there any design limitations to consider?
Designs should minimize undercuts, maintain consistent wall thickness, and incorporate suitable draft angles for reliable filling and ejection.
What is the minimum order quantity?
MOQ depends on the project. We support both small-batch validation and high-volume production.
Can injection molding produce tight-tolerance parts?
Yes. Injection molding provides excellent precision and repeatability for demanding applications.
Does Fecision charge for DFM feedback?
No. Fecision provides DFM analysis at no charge before you place your injection molding order.
Can Fecision produce quick-turn aluminum molds?
Yes. We produce both aluminum and steel molds according to project life, volume, and validation needs.
What is the difference between aluminum and steel molds?
Aluminum is cost-effective for prototypes and short runs; steel is preferred for long-life, higher-volume production.
How can I reduce injection molding costs?
Optimize the part for manufacturability, reduce complexity and undercuts, select suitable materials, and match tooling to expected volume.
