Custom Mold Design Services

Are you seeking the best-quality mold design services for rapidly custom plastic products? With our fast quotation service, get free injection molding quote and design feedbacks from experts.

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Our Mold Design Capabilities

Kemal custom mold design is the perfect solution for your quick-turn plastic parts production and prototyping demands. We provide top-quality injection molded parts at a cost-effective price with minimum lead time. At Kemal, we have advanced manufacturing facilities equipped with precise machinery to produce consistent parts from the same mold. Besides this, we offer a free consultation service on every order. Our expert will guide you on product design, mold design, surface finishes selection, and convenient shipping methods.

The DFM Analysis Service allows product designers to identify and fix any problems that might happen in the manufacturing phase to reduce costs.

Depending on various types of manufacturing processes there are set guidelines for DFM practices that help to precisely define various tolerances, rules, and common manufacturing checks.

MoldFlow provides simulation tools for injection mold design. By iterating molding simulations, our team can optimize product designs, mold designs, and prevent multiple modifications to the mold, reducing costs and time. 

With 2D & 3D design, we can help our clients figure out changes or improvements needed for the product. We can check all the details in the mold and avoid the possibility of mistakes.

Kemal will evaluate the mold design and communicate with our clients until both parties approve the mold design. During the mold design phase, the following will be shared with our clients

Our Mold Design Processes

From quotation to final production, acknowledge the seamless order process at Kemal. Our qualified team ensures you get your plastic molded parts within the provided lead times.

Mold Design

Request Instant Quote

You can request an instant quote from our quotation form. Our expert team will reach out to you within 24 hours to provide consultation throughout the process.

Mold Design

DFM Report

To execute the project feasibly, we provide a DFM report to review your design and identify any flaws and errors before starting the production process.

Mold Design

Mold Design & MoldFlow

The predictive model process analyzes molten material behavior within the mold. The advanced mold flow analysis ensures high-quality and precise molded parts.

Mold Design

Mold Tooling Manufacturing

We use preferred material for mold tooling production to provide premium-quality and tailored mold tooling that perfectly fits your application’s specifications.

Injection Molding Materials

We offer a wide range of materials for customer selection in order to ensure the best quality and performance of products. We are capable of sourcing thousands of materials on your specific request. We provide accurate machining quotes for over 50 metals and plastics.

Before starting injection molding for low or high-volume production, high-tolerance CNC machined tooling is requisite. The materials used for CNC tooling are:

With an extended range of plastic materials, you can choose what fits your needs perfectly. Each material has qualities that include heat resistance, impact strength, wear resistance, and many more.

We incorporate additives and fibers to enhance the quality and esthetics of standard plastic materials. The process increases the functionality and performance of the molded product.

Surface Finishes of Injection Molding

The process includes various steps, from injection mold tooling to entire plastic injection molding. Surface finishes of molds are processes typically carried out during production. At our company, we perform the specific surface treatment after the injection molding process according to customer requirements.

The SPI grade A1, A2, and A3 surface finishes are made with diamond buffing for a glossy and shiny surface finish.

The SPI standard B1, B2, and B3 grade surface treatment uses grit sandpaper paper to yield a semi-glossy surface finish.

The C1, C2, and C3 SPI grade surface treatments use grit sanding stones to achieve rough texture and uneven surface.

D1, D2, and D3 grade treatments use dry blast glass beads, and oxides for the surface finish to produce a very coarse and textured surface.

From Mold Design to Production

Rapid Design Molds

Leverage our rapid design mold service to create efficient and accessible mold designs for your high-scale production. Our professional team of 180 experts with relevant expertise uses advanced technology to create mold designs that exactly meet your final product specifications. With less design complexity and production time, we offer cost-efficient molds that fit your requirements.

Injection Molding Prototypes

Revamp your product development process with our premium injection molding prototype tooling. Get easy design feedback and product validation from our experts. From small batches of molded parts to performing functional testing, our team provides fast manufacturing within days for market validation. Before full-scale production, Kemal offers cost-effective aluminum tooling to reduce financial stress on you.

Production Tooling

Our production tooling is the perfect choice for a high-volume plastic parts production process. With highly durable tool steel material, you can rest assured that hundreds of thousands of parts will be manufactured with great results. Invest in the strength and quality of our superior molds, and see how they revolutionize your manufacturing process.

Gallery of Injection Molding Parts

Are still confused whether we can design and produce injection molded parts according to your specifications, get down to our gallery featuring our sophisticated design and production of various injection molded parts.

2K injection molding

Cordless Drill Body

Established

2022

Capabilities

Insert Molding

Machines

ENGEL Injection Molding Machine

Expertise

Manufacturing cordless drill body using impact resistant ABS and PVC material.

Description

Expertise in insert molding and developing top-quality products for industrial items.

Medical part

Medical Hemostasis Valve

Established

2020

Capabilities

Injection Molding

Machines

Husky Injection Molding Machine

Expertise

High volume injection molding using PC and Silicone material.

Description

Our medical products are manufactured with bio-compatible materials.

Micro Injection Mold

Plastic Gears

Established

2019

Capabilities

Injection Molding

Machines

ENGEL Injection Molding Machine

Expertise

High volume plastic gear production with Tier-2 mold using Nylon material.

Description

Manufacture high-quality durable plastic gears for a toy manufacturer

Automotive part

Automotive Head Lamp

Established

2018

Capabilities

Injection Molding

Machines

Husky Injection Molding Machine

Expertise

Medium volume production with tool steel mold using Polypropylene

Description

Manufacturing wear-resistant and cost-efficient automotive head lamps.

Automotive Part

Automobile Bumper Grill

Established

2017

Capabilities

Precision Injection Molding

Machines

Husky Injection Molding Machine

Expertise

Medium volume injection molding using Polypropylene material.

Description

Expertise in manufacturing custom automotive parts by injection

Injection Mold Part

Medical Needle Valve

Established

2018

Capabilities

Overmolding

Machines

BORCHE BS 800

Expertise

Large volume production using chemical resistant PE material.

Description

Experienced in injection molding medical products.

Why Choose Kemal for Custom Mold Design Services

No MOQ

With our no MOQ policy, increase the production efficiency of your plastic molded parts. We offer accelerated production and on-demand injection molding services while ensuring low injection molding costs.

High Efficiency

Kemal features a systematic supply chain and certified domestic factories. We make sure to swiftly bridge the gap between product development and product manufacturing promptly with the fastest delivery.

Consistency and High Quality

At our factories, we conduct an automated dimensional inspection after the production phase to ensure the consistency of custom-molded products regardless of design complexity.

Injection Molding Specialists

Our product developers and engineers have 20+ years of experience in the industry. Under expert surveillance, we ensure your product prototyping and production turnaround are error-free.  

Strong Manufacturing Capacity

We provide robust manufacturing capacity in our domestic factories in China, offering quality injection molding project solutions with diverse options for surface finishes and flexible materials. We fulfill low-volume and high-volume production demands.

Fast Online Quotation

We offer warranty and post-sale service on injection molded products. Our warranty and after-sales service cover defects and repairs/replacements of molded products. We offer 24/7 customer support in case of issues.

See What Our Customers Say About Us

A customer’s words have a more substantial impact than a company’s claims – and see what our satisfied customers have said regarding how we fulfilled their requirements.

Ready to Get Your Custom Mold Design Quotes?

Learn what you need before requesting for quotes for your injection molding projects at Kemal. Help you get wonderful molded parts made effectively, easily.

FAQ's

Mold design refers to those who are engaged in the digital design of enterprise molds, including cavity molds and cold stamping dies, based on traditional mold design, and fully apply digital design tools to improve mold design quality and shorten mold design cycles.

Lots of software are suitable for mold design, such as UG, Pro/Engineer, AutoCAD, Cimatron, PowerMill Hypermill, Solidworks, WORKNC, Solid Edge, CATIA, etc.
For simple molds, CAD software is fast and easy to use; for molds with a messy structure and more curved surfaces, Pro-E, UG, Mastercam, Solidworks are good choices. Pro-E or UG is commonly used in drawings and production. Each software has its own characteristics. The important factor for choose is which one the mold designer is better at or prefers to use.

In the actual design process, according to the requirements of the design content, we need to consider the sequence of 2D drawing(s) or 3D drawing(s). Our mold design steps are listed as below FYR.

1.According to the customized plastic parts 2D and 3D drawings, we will organize the design data, analyze the structure, shape, and assembly dimensions of the plastic product (for example, analyze the rationality of the demolding angle during the molding process), in order to confirm whether the parameters of the injection molding equipment matches the relevant dimensions of the mold, cavity, production batch, steel requirements, etc., and then convert the data into design instructions.

2.We will determine the mold type, overall structure, mold cavity number, and layout of the cavities.

3.The parting surface will be confirmed by using 3D modeling for parting or 2D drawing for post-modeling).

4.We will decide the type of injection system, conduct Moldflow analysis, and confirm the gate form, location, and numbers.

5.To determine side core pulling structure and inclined top mechanism.

6.To confirm the mosaic structure.

7.Design of ejection and early return system.

8.Cooling and heating system design.

9.Guiding and positioning system design.

10.Selection of mold base (size of the template, cavity, core, etc.). Make the assemblies diagram of the mold base, and try to design according to the standard mold base.

1. The overall layout of the mold is reasonable
2. Parting surface selection
3. Layout of 3 runners, selection of glue inlet
4. ejection device
5. water transport arrangement
6. exhaust options
7. Pay attention to the draft angle when parting the mold, the extraction of inserts, the treatment of the rubbing angle, and the selection of material shrinkage
8. Processing drawings should be detailed, but simple.
All in all, mold design must consider the ability to demold! Easy to process and to eject!

Reasonable mold design is mainly reflected in the following four aspects.
1.The quality of the manufactured plastic products (both appearance quality and dimensional stability).
2.Convenient, fast, concise, saving money and manpower during processing and manufacturing, as well as leaving room for mold correction and improvement.
3.Safe, reliable, and easy to maintain the mold during usage.
4.In injection molding, sometimes there is a shorter molding cycle and longer service life, also a reasonable mold manufacturing process.

For mold design, the gate design is usually based on experience, and the size of the gate depends on the cross-sectional area and gate length:
1. The cross-sectional area of the gate is as small as possible, and the length of the channel is as short as possible to ensure the appearance of the finished product and reduce the pressure loss when the plastic passes.
2. The gate must be narrow to facilitate the cold formation and prevent excessive plastic from flowing back, so the gate is in the center of the runner.

For mold design, in order to obtain the best filling condition, the type of gate must be selected carefully. Common gates have the following types: sprue gate, edge gate, overlap gate, fan gate, diaphragm gate, ring gate, film gate, pin-point gate, submarine gate, tab gate, and hook gate, etc.

In-mold design, the side gate is a commonly used type, and its structure is the simplest one. It is only processed on one side of the mold. And this gate connects the runner and the finished product.
Here are several reasons for choosing an edge gate for mold design.
1.The section area is simple and easy to process.
2.The size is easy to accurately control and quickly improve.
3.When plastic is filled, the finished product is easy to control.
4.It is easily affected by the cooling and solidification of the gate and all plastics.

Fan gate is one of the gates types for mold design. And here are some advantages of this gate type for your reference.
1.It is suitable for large-scale and thin-walled plastic injection products.
2.When the resin flows into the mold, the plastic flows from the thinness and expands to form the plastic with good fluidity, reducing the flow pattern and the water trapping pattern.
3.Fan gate is appropriate for any plastic, especially PMMA, except for rigid PVC.

The requirement of the ejector system is to demould the product without deformation and accurately within the specified time. Here are 7 points to be considered for mold design.

1.The ejection stroke generally stipulates that the ejected product is 5~10mm away from the mold. For some simple cylindrical products with a large demolding slope, the stroke can be 2/3 of the product depth. Don’t be too long, because the ejector rod is very thin and has a long stroke, which is easy to damage the ejector rod.

2.The reset rod (return rod) must be set in the ejection system to help the ejector rod return. During the ejection process, the ejector backing plate bears great ejection pressure. When the strength and rigidity are insufficient, the flexible deformation affects the ejector movement. Pay attention to the screw connection (need to be screwed in from the backing plate to the fixed plate) to avoid insufficient wrench space Difficulties.

3.The relationship between the top of the ejector pin and the plane of the core (or cavity) should theoretically be on the same plane, which is convenient for mold manufacturing and assembly. In practice, most of the end surface of the ejector pin exceeds or lowers the core (or cavity) plane by 0.05~0.1mm, Negotiate with the designer to obtain the permission of the inner surface of the product with bosses and pits.

4.The shape and size of the ejector pin. Unless the shape of the product is limited, other ejector pins must be used. Generally, cylindrical ejectors are used, and elongated ejector pins with a diameter less than 3mm should be avoided.

5.Due to the large size of the ejector pin fixing plate and the backing plate, the span between the movable mold backing plate is enlarged. Under higher injection pressure, the movable mold backing plate may be deformed, causing the ejector pin to move poorly or jam In addition to increasing the thickness of the movable mold backing plate to enhance its rigidity, a support column can also be set between the movable mold fixing plate and the backing plate.

6.When the output of the product is large or the ejection stroke is long, use a thinner ejector pin, and when the ejector tube is used for ejection and the movable mold fixing plate is equipped with an elongated core, it is used to protect the ejector pin (or long core). Its movement is stable, the ejection system needs to be equipped with a guiding device, and there are positioning pins between the movable template and the seat cushion bar and the movable mold fixing plate to ensure positioning accuracy.

7.Where the product has plastic surrounding the steel part, it will be difficult to demold. This is caused by the phenomenon of “holding” the steel part due to the shrinkage stress of the plastic melt after cooling. Therefore, these places (ribs, columns) are Should be considered.

In mold design, the injection mold exhaust system is the exhaust of the cavity and the gating system, which mainly includes the air in the cavity, the air in the runner, and the steam of the moisture in the plastic at high temperature. These gases must be discharged in time to avoid affecting the quality of the plastic parts. The exhaust method in the injection mold includes the following 7 ways: ① Parting surface (including venting groove); ② Insert fitting surface; ③ Fitting surface of pushrod or push tube and inner mold insert; ④ Exhaust of side core pulling mechanism; ⑤ Adding a vent needle or insert to exhaust the trapped air; ⑥ Ventilate steel exhaust; ⑦ Exhaust valve.

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