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Custom Mold Components
We deliver fully customized mold parts with tight tolerances, premium materials, and fast lead times. Every component is engineered to fit your mold perfectly and ready for immediate assembly.
CNC Machining Services for Custom Parts
We can provide any custom mold components you want, such as mold inserts, sliders, lifters, core and cavity blocks, and ejector pins, and have them shipped to your company worldwide via DHL or FedEx in 3 days.
With our experience and the good tolerance parts we provide, you can easily assemble them in-house so you can save the delivery time of foreign proof tools and samples and the cost of shipping the samples from China, improve your production and manufacturing, and produce the tool in your own country at China prices
Project Completed
Fast Lead Time
Custom Mold Components We Offer
Customize Your Project Assessment
Injection Molding Lifter
Injection Molding Slider
Ejector Pins
Core And Cavity Insert
Custom Mold Parts
Custom Machining Parts
Mold Components for Various Industries
Our mold components are built to support a wide range of industries—including automotive, electronics, medical, and industrial equipment. Whether you need high-precision inserts, sliders, ejector pins, or custom machined parts, we tailor every component to fit your design, tolerance, and production needs.
4-Step Process for Precision Mold Parts Manufacturing
Technical Review & Process Planning
We evaluate your drawings and models, confirm materials and tolerances, and create a clear machining plan to ensure efficient production.
Precision Machining
Parts are produced using CNC machining, EDM, milling, turning, and grinding to achieve stable accuracy and consistent quality.
Heat Treatment & Surface Finishing
Required treatments such as hardening, nitriding, polishing, or coating are applied to improve strength, wear resistance, and surface performance.
Inspection & Fit Verification
All dimensions are checked with precision measuring equipment, and final fit testing ensures each part is ready for immediate assembly.
Common Materials for Mold Components
Material Category |
Material Grade |
Key Features |
Typical Applications |
| Tool Steel | H13 / 1.2344 | High toughness, heat resistance, good for hot-work molds | Core inserts, cavity inserts, sliders |
| S136 / 1.2316 | Corrosion-resistant stainless mold steel | Medical molds, transparent parts | |
| SKD61 | High-temperature stability | High-wear components | |
| 1.2083 | High chromium, corrosion resistance | Mirror-polished parts | |
| 1.2379 (D2) | High wear resistance | Blades, precision inserts | |
| Stainless Steel | 420 | Good polishability & corrosion resistance | Medical components, optical molds |
| 440C | High hardness | Precision pins, bushings | |
| 304 / 316 | Corrosion-resistant | Special functional parts | |
| Alloy Steel | P20 | Pre-hardened, good machinability | Mold bases, large inserts |
| 718 / 1.2738 | Good machining & toughness | Complex mold structures | |
| Aluminum | 6061 | Easy machining, lightweight | Prototype mold parts |
| 7075 | High strength | Lightweight precision parts | |
| Copper Alloy | Beryllium Copper (BeCu) | Excellent thermal conductivity | Cooling inserts, heat sinks |
| Brass | Good machinability | Bushings, guides | |
| Engineering Plastics | POM | Low friction, stable | Guide parts, fixtures |
| PEEK | High temperature & chemical resistance | Special precision components | |
| Nylon (PA) | Tough and lightweight | Non-metal functional parts | |
| Carbide | Tungsten Carbide | Ultra-wear resistance | Punches, guide pins, inserts |
How to Cooperate with Us?
Upload Drawings
Share your 2D/3D files along with any details about materials, quantity, or special requirements. We’ll take a close look right away so we fully understand your project before moving forward.
Get Instant Quote
You’ll receive the response within 24 hours. We’ll share practical suggestions — whether to reduce cost, improve strength, or make the part easier to produce — so you can make the best decision.
Manufacturing
After you confirm the order, we start machining your parts using stable CNC processes. Our team monitors every step to make sure accuracy, surface finish, and consistency meet your expectations.
Details Inspection
From key dimensions to overall appearance, we make sure everything matches your drawings and requirements, and inspection reports can be provided if needed.
Upload Drawings
We pack them securely and arrange the shipping method you prefer. You’ll receive updates throughout the process, and we stay available if you need help or have follow-up questions.
Get A Customized Project Assessment!
Advantages of Choosing Kehui Mold Parts Manufacturing
Kehui delivers precision mold components with mature technology and advanced equipment, ensuring every part fits your assembly perfectly with no extra fitting required. Each project is supported by a dedicated engineer-and-sales duo, offering two-to-one tracking and daily communication for fast responses, smooth coordination, and reliable quality from start to finish.
Save Lead Time
You can look for several suppliers to finish the same project together. For example: arrange for A company to design, B factory to make mold base, C factory to make core block, D factory to make slider/lifter/insert, etc (request every supplier control the tolerance within your requirement so that it is easy to assembly)—e factory (in your country) assembly and trial. The normal procedure from design, process, fitting, and trail to final shipping out may need at least 3 months. But in this way we can finish all the projects by 1 month, saving the lead time considerably.
Save Cost
Your company can save a lot of time, cost, and manpower on traveling abroad to trial the tooling, and much better improve work efficiency. If the mold base is made in your country and other parts are made in China you can save a lot of time & delivery costs, and you can also save on delivery costs of plastic material from your country to China.
Quality Insurance
With our high precision equipment (Hi-speed CNC machining center, slow-feeding wire-cut, mirror EDM, and CMM inspection machine) we inspect them after finishing every process, so we can control all the tolerance of all parts as requested, and The parts are shipped after the inspection report to be passed by customer. In this way, we have fully controlled every part so that we can save the cost to prevent the trial of the mold again and again.
Professional Team and Advanced Machines
With mature manufacturing technology and high-precision equipment, we deliver components that integrate flawlessly into your assembly — ready to use with no additional fitting required. Every project is supported by our dedicated engineer-and-sales duo, providing two-to-one project tracking and daily communication to ensure rapid responses, accurate technical solutions, and a smooth workflow from design to final delivery.
FAQ Of Custom Mold Components
Visit our FAQ center for more questions.
How do you ensure the quality of each part?
All parts go through full-size inspection using CMM, height gauges, projectors, and strict fit checks before shipment.
Can you help optimize my drawing if I’m not sure about manufacturability?
Yes. Our engineers can provide DFM suggestions to improve accuracy, reduce cost, and ensure the part can be machined efficiently.
Do you support small quantities or sample orders?
Absolutely. We accept prototypes, single-piece orders, and small batches before mass production.
Can you achieve tight tolerances for precision mold components?
Yes. We can reach tolerances down to ±0.005 mm using advanced CNC, grinding, and EDM equipment.
What is the typical lead time for custom mold parts?
Lead time typically ranges from 3 to 7 days, depending on part complexity, material hardness, and quantity.