Plastic Injection Molding Factory since 1993
# You dream it, we make it.
# One-stop custom plastic service
# ISO certified factory
# Fast and professional response
Company profile
LZ Tooling is a plastic injection molding manufacturer in Dongguan, Guangdong, China, specializing in custom injection molds and precision molded plastic parts for automotive, electronics, medical devices, and industrial equipment manufacturers.
LZ Tooling provides injection mold design, mold manufacturing, and plastic injection molding services for global OEM manufacturers.
As a plastic injection molding manufacturer in China, LZ Tooling focuses on high-precision mold making and reliable plastic part production for international OEM clients.
Our production follows strict quality management systems in line with international certifications, including ISO 9001, ISO 13485, and IATF 16949, ensuring consistent performance, safety, and reliability in every batch.
For more details, pls check about us
Our Injection Molding Advantages
With LZ tooling, your trusted plastic injection molding factory, you dream your product, and we make it. Our One-stop custom plastic service will simplify your journey from concept to finished product. You will benefit from design offer/feedback/engineering support that saves your time and minimizes cost. With all our services provided, you can achieve success without stress.
Rapid prototyping service – Rapidly turn your ideas into samples
DFM reports and mold flow analysis – Prevent production potential issues before they happen
Precision mold design and making – Provide you with reliable, long-lasting molds/tools
Post-processing and assembly services – Simplify your supply chain, one-stop for your plastic products
Quality and Certificates – Well-controlled production process with various certificates, like ISO 9001, ISO 13485, IATF 16949 etc.
Converting Your Ideas Into Products
Try your seamless journey from ideas to final products, precision-manufactured plastic products with our advanced engineering and manufacturing expertise. Contact us for any questions and doubts.
Our service
At LZ Tooling, we provide a full range of plastic injection molding services including injection mold design, injection molding, overmolding, insert molding, and rapid injection molding for global OEM manufacturers.
How to Work With Us
#1 Price Quotation
Send your 3D design file and related request to us for a price quotation.
#2 Sample Making
Rapid prototyping and mold making, and send final sample for your approval
#3 Production & shipping
Plastic injection molding production and arrange shipment.
Industry Applications
LZ Tooling supports customers in automotive, electronics, medical devices, package, consumer goods and industrial equipment industries with reliable plastic injection molding solutions.
Automotive injection molding
Consumer goods injection molding
Electrical injection molding
Packaging injection molding
Manufacturing Capability
At LZ Tooling, we handle every step of plastic injection molding with precision mold making, material selection, efficient production, and strict quality control. From prototypes to high-volume parts, we ensure consistent performance and reliability for your custom projects.
Injection mold making
Plastic material selection
Production capacity
Quality control
About Quotation
# Get a quotation within 1 hour
Drawing
1. Quotation is based on 3D or 2D drawing(STP/STEP/IGS/STL/PDF/DWG/DXF)
2. Quotation based on sample or prototypes
3. Quotation based on images or hand-drawn sketches
Product/Mold
1. MATERIAL:
# Mold steel: 2738, 2343, S130, 2344, 718, 8407, S136,P20, KD-61, NAK80, H13
# Product: PA6, PA66, ASA, POM, PPS, ABS, ABS+GF, ABS+PC, POM(Derlin), PP, PE, PC, PMMA(Acrylic), PVC, PEI, PBT, PTFE, etc.
2. Customized color / Pantone color.
3. MOQ (Minimum order quantity)
4. Surface treatment:
Texture, matt surface, mirror polish, sand blasting, painting, chroming, anodizing, brushing, silk screen, water transferring, laser cutting, leather covering, UV painting, hot stamping.
5. Function or usage environment (Structural recommendations)
6. Tolerance request.
7. Cavity QTY: Single-cavity / Muti-cavity
8. Runner: Cold / hot runner system
Our Service :
- 30 years of injection molding experience:
We have ISO 9001 international quality management system, as well as 30 years of production cost control experience, so we
can help you save about 10%~30% manufacturing cost when you compare with other plastic injection molding factory. - ISO 9001 quality management system.
- Factory price.
- Large quantity with discounts.
- PAYMENT METHOD:
# T/T, Credit card, or Alibaba payment is acceptable. Just let us know which is convenient for you.
# Usually, we charge 30% deposit and balance against the BL copy
About Design
Product Design:
1. NDA: support or provide NDA for you.
2. Free product design and updating.
3. Professional for customized design and give related suggestions
4. The different structures of the product will affect the price.
About Sampling
3D Printing Service:
1. Materials: SLA, Nylon, Steel, Silicone, Aluminum, ABS, PP, PC
2. Color (Match to Pantone color #)
3. Wall thickness : recommended above 0.8MM
4. Surface : matt, polishing, sand blasting etc.
About Molds
Mold requirements:
1. Mold life.
2. Materials: If you do not know, please tell us the annual usage, and we can recommend steel for the mold.
3. Mold cavity requirements: If you can not give the requirements, you can advise the model and parameters of the injection
molding machine, such as the distance between the injection molding machine guide rods, the maximum injection pressure,
etc. We will recommend the most suitable cavities.
Have a customized injection molding parts ?
If you have customized plastic parts, pls send an inquiry to us, we will follow up and provide fast and professional solution for your projects.
4. Special requirements for molds: water connectors, press KO studs, eye bolts hole size etc.
5. Tolerance Requirements.
6. Mold surface treatment.
Mold manufacturing:
1. Mold making time: 15-35 working days.
2. We have high-quality CNC and EDM machines from Sodick, AGIE, such as 4-axis and 5-axis CNC machines, which can offer stable and accurate processing ability.
About Injection Molding
1. Injection molding machines: 65 units, 80T-1100T
2. Production visualiztion services
3. Product quality inspection.
About Assemble and Package
Assemble:
1. Assemble requirements
2. We have 5 product assembly lines, including the assembly of plastic, hardware, wood and other parts.
Package:
1. Product standard package: PE bag for each part
Layout the parts into A=A cartons
Pack the cartons into pallets.
2. Mold standard package: Vacuum packing the mold by aluminum foil and pack all in ply-wood crate.
3. Customized packaging
4. Provide free design package.
5. Before packing. professional QCwill inspect the products to ensure high quality.
About Transport
Transport:
1. Express(DHL/UPS/FEDEX/TNT/EMS)
2. Choose your own freight forwarder.
3. FOB Shenzhen or other China port.
4. CIF to the nearest port in your country
5. DDP OR DDU to your door
Transportation time:
1. About 3-5 days door-to-door service by express, and about 20-45 days to door service by sea.
Preferential:
1. We have stable shipping agent which working with us for over 15 years.
2. Door to door service include all taxes, no need to pay an extra cent.
About After-sales Service
After Sales:
1. 16 hours online service.
2. lf the product needs optimization and improvement, we will support you.
3. Free maintenance: Maintain and keep molds in good condition.
Guarantee:
1. Our molds and product prices are the most cost-effective. We refuse to provide existing molds and products to other customers. All molds and products belong to our clients, and we have no right to use them except with the customer’s
permission. If other customers want your product, we will introduce them to you and let you contact them
by yourself
2. We offer good after-sales service within 10 years after the customer receives the mold, and provide 16 hours of online consultation.
Most of our customers have worked with us for more than 15 years and still trust, are satisfied, and do business with us. LZ tooling, is your trusted Chinese plastic injection molding factory.
LZ Tooling is engaged in plastic injection molding, offering support across prototyping, mold design, and low- to high-volume production. By collaborating with clients, LZ Tooling helps optimise part quality, material selection, and manufacturing processes, ensuring that plastic components meet functional and performance requirements across automotive, electronics, medical, and industrial applications.
Our Capabilities
Injection Molding
LZ Tooling is engaged in injection molding services, supporting clients in producing high-quality plastic components for a variety of industries. Explore specific services:
Custom Plastic Injection Molding – LZ Tooling helps clients develop tailored plastic parts that meet precise functional and quality requirements.
Overmolding – LZ Tooling assists in combining multiple materials in a single molding process, enhancing part functionality and design flexibility.
Insert Molding – LZ Tooling supports integrating metal or other components into plastic parts, ensuring precise alignment and structural integrity.
Rapid Injection Molding – LZ Tooling helps clients quickly produce functional parts for prototyping and short-run projects.
Main Materials
LZ Tooling provides expertise across a range of engineering plastics, helping select the right material for each application:
PPSU Injection Molding – LZ Tooling supports high-performance components with excellent heat and chemical resistance.
PA66 Injection Molding – LZ Tooling helps produce durable and strong parts suitable for demanding mechanical applications.
PEEK Injection Molding – LZ Tooling assists in moulding high-temperature, high-strength parts for advanced engineering uses.
ABS Injection Molding – LZ Tooling provides support for versatile, cost-effective components used across consumer and industrial products.
Mold Services
LZ Tooling provides comprehensive mold-related support to optimise manufacturing efficiency and quality:
Injection Mold Design – LZ Tooling guides mold geometry, material selection, and process planning to create accurate and efficient molds.
Injection Mold Making – LZ Tooling offers assistance in producing high-precision molds for a wide range of plastic applications.
Prototyping & Low Volume Production
LZ Tooling supports early-stage testing and small-batch production to help clients refine designs before full-scale manufacturing:
Prototype Injection Molding – LZ Tooling helps develop and test plastic prototypes, ensuring parts meet functional and performance requirements.
Low-Volume Injection Molding – LZ Tooling assists in small-batch runs, maintaining consistent quality and enabling evaluation before scaling up production.
If You Want To Know More, Contact Us Anytime.
We appreciate that you’ve entrusted us by choosing us as your custom plastic products manufacturer, and we take pride in our customer service and every order.
LZ Tooling, Your Trusted Plastic Injection Molding Factory
From packaging to healthcare to automotive engineering to consumer electronics, plastic injection molding is at the core of modern manufacturing. Businesses globally rely on trusted suppliers to deliver precision-engineered components that provide scalable production and a reliable solution at an affordable price. In this industry, LZ Tooling emerges as a reputable Plastic Injection Molding Factory that seamlessly blends technical expertise, cutting-edge machinery, and customer-centric service.
In this article, we will delve into the strengths of LZ Tooling, emphasize its capabilities, and illustrate why international clients turn to the company for intricate and high-quality plastic components. Whether you're a startup company testing a concept for production or you're a large corporation looking to produce at full capacity, LZ Tooling is a trusted partner you can rely on for overmolding and insert molding.
The Role of Plastic Injection Molding in Modern Manufacturing
Plastic injection molding is more than just a process of creating plastic parts – it is a process that drives innovation in today's world. By forcing molten plastic into a painstakingly designed mold cavity, a plastic injection molding factory can produce components with intricate geometries, tight tolerances, and clean surface finishes suitable for the most fastidious of industry standards.
The advantages of injection molding are:
High Efficiency: After the mold is created and wants to enters production mode, each cycle is very fast. This effectiveness not only creates opportunities for the manufacture of large quantities of identical parts in a short time, but it is also more suitable for mass manufacturing.
Precision and Repeatability: In modern-day molding machines with advanced controls and sensors, you can be sure that each piece made is more or less the same. Injection molding is a repeatable process, which is why it is a preferred method by industries that require uniformity.
Versatility: The process can manufacture products of varying sizes and complexities – from tiny parts of chambers used in medicine that measure in the millimeters to big structural components for complex products in the automotive, aerospace, or consumer information market.
Material Variety: Access to thousands of thermoplastic resins allows engineers to select materials whose properties (impact resistance, heat resistance, chemical stability, etc.) are optimized for the application.
Cost-Efficiency: Despite a high initial tooling cost, the economies of scale make the part cost very low as production increases. Injection moulding is one of the least costly machining options for high-volume runs.
These speed, flexibility, and affordability are the reasons why plastic injection molding remains the prevalent tool in today's competitive manufacturing environment for industries that require both quality and volume.
Why LZ tooling stands out among plastic injection molding factory.
In addition to precision tooling access and advanced molding capabilities, LZ Tooling, your plastic injection molding factory, offers a comprehensive set of services specifically developed to provide the customer with faster development cycles, superior quality assurance, and cost benefits. Each service translates and builds on the company's core values of trust, efficiency, and innovation.
Rapid Prototyping Service – Prototyping Ideas into Samples
Mobility is important in today's competitive workplaces. LZ Tooling is equipped to quickly produce functional prototypes to validate initial design concepts in days rather than months for your low volume injection molding. This allows customers to verify designs early, test products, and make necessary changes before committing to an all-scale production run.
Sincere Factory Price – Transparent, Competitive Price
One of the standout features of LZ Tooling is its transparent pricing. The company offers transparent factory prices without hidden fees, so customers can have the confidence that they are getting a great deal. Awareness and full transparency allow for the development of long-term partnerships, ensuring quality delivery whilst maintaining on-budget pricing.
DFM Reports and Mold Flow Analysis – Eliminating the Risk of Problems From Occurring
Each project is carefully studied with design for manufacturability (DFM) reports and mold flow simulation. These parameters point out possible problems such as air traps or weld lines or material flow imbalances, giving engineers an opportunity to optimise part and mould design prior to production. This minimises risk, shortens lead-times and prevents expensive rework in a plastic injection molding factory's bulk production.
Precision mold design and making – Tools that last
For high-quality products to begin with, you need high-quality molds. LZ Tooling designs and manufactures molds with excellent dimensional precision and strength using state-of-the-art CAD/CAM systems, CNC machining technology, and EDM equipment. Each mold is designed for a long service life, stable operation, and minimum maintenance.
Post-processing and assembling services – a one-stop shop manufacturing service
To reduce the complexity within the supply chain, LZ Tooling offers post-processing and assembly-integrated solutions. Surface finishing, ultrasonic welding, trimming, and sub-assembly are offered as well, making it possible for customers to source complete parts or product assemblies from a single plastic injection molding factory.
Quality and Certifications – Standards You Can Trust
Everything at LZ Tooling is based upon an uncompromising culture of quality. The factory has passed internationally recognised standards such as ISO 9001, ISO 13485 & IATF 16949. These standards provide high process control and product quality at consistent repeatability for the automotive, medical, and consumer products industries and others.
How to Customize Your Plastic Injection Molding with Us
At LZ Tooling, your trusted Chinese plastic injection molding factory, we make the journey from the idea to high-quality plastic products simple, transparent, and efficient. With experienced operators at its head, with all phases of the products studied from the initial meeting to final packaging, without overlooking any aspect, with the utmost respect for the customer.
Step #1: Idea Discussion
The process starts off with your idea. You can give us a brief about your product idea or product-based idea in any form or shape, or just an idea. Our engineers will perform a feasibility investigation, study potential difficulties, and apply professional judgment in making material, structural, and manufacturing decisions for your design to be implemented as a viable and economical concept.
Step #2: Price Quotation
We need size, material, weight, packaging preferences, and estimated order quantity from you in order to provide you with a correct quotation. From these inputs, our team will provide a rapid cost estimate and give you a clear, competitive cost. We believe in small up-front factory time-cost, nothing hidden, just sustainable factory value long-term on a long-term partnership.
Step #3: Product and Mold Design
If you don't have 2D/3D files already, our design department can make the plastic molds design for you with engineering service. With decades of mold engineering expertise, we optimize your product design and tooling layout for manufacturability, durability and accuracy.
Step #4: Plastic Prototyping
Repeatable production before large-scale production — 3D printing services allow you to test product shape, function, and performance. This helps ensure design accuracy and allows proper changes to be made early in the process, saving time and money in the long run.
Step #5: Mold Making
Our expert technicians produce in-house injection mold making with state-of-the-art CNC and EDM tools and a precision that comes only with over 30 years of experience. The result is stable production tooling that has a long service life.
Step #6: Sample and Production
We produce plastic samples and perform mass production with the highest quality standards on state-of-the-art injection molding machines. All parts are inspected for consistency in size, strength and surface finish for your requirements, setting well excellent producing parameters for injection molding machines without any malformed data. And we will take several actions to solve any production issues to ensure smooth and qualified bulk production.
Step #7: Post-Processing
Besides moulding, we can also provide other finishing operations such as trimming, deburring, polishing, painting, ultrasonic welding, printing, and assembly. This single vendor solution streamlines your supply chain and has your products ready for the market
Step #8: Product Packaging
Finally, we package complements based on how you want. Whether you are exporting retail-ready packaging or shipping bulk cargo, we guarantee to provide you with a safe shipping solution that prevents damage to products during transit while they are being safely transported to their final destination.
Industries That are Served by LZ Tooling
Plastic injection molding is one of the most versatile manufacturing processes, so it can be used in almost every industry. LZ Tooling has decades of experience partnering with customers across diverse industry sectors to develop top-quality parts built to the most challenging requirements.
Automotive
From dashboards to bumpers, to clips and electrical connectors, automotive components must be both strong and precise. LZ Tooling builds parts to extremely high safety, durability, and performance standards.
Medical and Healthcare
Medical plastics require maximum precision, compliance with regulations. LZ Tooling manufactures syringes and other medical components, as well as diagnostic device housings and surgical components in biocompatible materials with controlled environments.
Consumer Electronics
The electronic industry is dependent on lightweight, rugged, and clever plastics for phone enclosures, mobile phone boxes, or even internal heat dissipation fins. LZ Tooling produces precise tolerances and high surface finishes that satisfy today's design requirements.
Packaging
Closures, containers, and caps need to be affordable without compromising performance. LZ Tooling is a developer of packaging solutions that are lightweight, durable and reliable
Industrial and Construction
for the heavy-duty sector, producing hard-wearing plastic parts for machinery, equipment, and tools, the defense industry, security service products, etc, designed for use in hostile environments;
LZ Tooling's Commitment to Constant Improvement
At LZ Tooling, the principle of continuous improvement is embedded in the culture of this plastic injection molding factory. The company's philosophy is that even the best of current performance always leads to opportunities to increase efficiency, quality, and sustainability.
New Equipment
LZ Tooling continually updates its facilities with the latest, most advanced injection molding machines that are faster, more accurate, and more energy-efficient. Besides, they enhance production capability, and they also lower the operational costs for customers.
Employee Training
People are at the heart of an innovation process. Conducting ongoing training for manufacturers, operators, and managers to ensure they remain up to date with current technologies, materials, and best practices, assertively and confidently carrying out projects where needed.
Digital Tools
The manufacturing industry today is going digital. LZ Tooling uses mould flow, process optimisation and other simulation software to predict problems that may arise and reduce development cycles while providing more confidence.
Sustainability Practices
And so environmental responsibility is also very important. And by helping its customers meet their targets to help the planet recover, by continually working to reduce the quantity of waste generated, by recycling plastic material, and by contributing positively to the reduction of the carbon footprint in the initiatives undertaken by this plastic injection molding factory.
Choosing LZ Tooling for your plastic injection molding
Choosing the appropriate plastic injection molding companies is a critical part of any product development process. You need a factory that not only grasps the technical aspects of precision engineering but also protects your consistent quality, efficacy, and customer satisfaction.
LZ Tooling has earned a reputation as a trusted partner based on decades of experience, advanced tooling capabilities, and advanced innovation in custom plastic injection molding. With over 30 years' worth of experience, well-equipped engineering capabilities, and a diverse clientele around the world, the company can undertake projects of all sizes – from ideation/concept to rapid prototyping and production on mass scales.
Through careful attention to quality control and using the most advanced technology, LZ Tooling ensures every part is guaranteed to meet exacting specifications and perform well in its application, and block any potential issues for your molded plastic parts. Choosing LZ Tooling is your security solution for plastic injection molding parts.
For businesses looking for a reliable and forward-thinking plastic injection molding factory, LZ Tooling not only provides manufacturing services but also fosters a trust-based partnership rooted in expertise and shared dedication to turning ideas into reality efficiently and effectively.
No matter you are a start-up company or a site owner looking for some customized plastic products. We will try our best to support you in the plastic injection molding field. Send your certain word like ideas, product application, usage, etc, we will offer a design for your custom plastic parts, with a quotation that is performed triggered. And pls review our website, believe the content online attacks your attention. No worry for your browsing safety, as we have already applied website security, which will block any cloudflare ray id found bad/aggressive to our site or any hidden SQL command conducted on our website.