This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.
Precision Sinker EDM Services
DEK provides first-class Sinker EDM services and is committed to providing customers with high-quality machined parts of complex shapes. We specialize in machining all electrically conductive materials, easily cutting a wide range of hard and special materials, generally achieving machining accuracies of 0.005mm as well as roughness of Ra 0.15~0.2, and are capable of repairing and cleaning damaged interior and exterior walls.
Certified by
introduction
High Quality Sinker EDM Machining Services
DEK specializes in precision sinker EDM machining, providing high precision, high accuracy, complex shape custom machined parts service. We can machine all electrically conductive materials such as tool steel, stainless steel, alloy steel, carbon steel, aluminum alloys, copper alloys, titanium alloys, nickel alloys, tungsten, and more.
We have state-of-the-art machining equipment and machinists with excellent programming skills to achieve tight tolerances of 0.005mm, slower feed rates increase surface finish, and our general roughness is Ra 0.15~0.2, allowing us to quickly repair damaged holes and clean up damaged walls without compromising form tolerances.
DEK's Sinker EDM machining service is ideal for commonly used parts in molds, machining, electronics, medical devices, and aerospace. It can produce high-precision and complex geometric parts, such as: stamping molds, injection molds, die-casting molds, various tools, precision shafts, electronic components, medical devices, turbine blades, nozzles. Choose an economical and high-precision on-demand machining service, and contact us now!
- Get an online quote within 6 hours
- Complex shapes and repeatability
- Machine all conductive materials
- Ideal for complex, small-scale designs
- Machining accuracy of +/- 0.005mm can be achieved
- Ability to repair and clean damaged interior/exterior walls
- Does not introduce stress or cause thermal deformation of the material being machined
Materials
Diverse Material Options for Sinker EDM
Explore a plethora of material choices suitable for sinker EDM, ensuring optimal performance and functionality.
Metal
Aluminum
Alloy Steel
Brass
Bronze
Copper
Inconel
Mild Steel
Stainless Steel
Titanium
Tool Steel
Tungsten Steel
Aluminum
Aluminum is a lightweight, highly thermally conductive,highly electrical conductivity, corrosion resistance and popular metal for Sinker EDM machining.
At DEK, we specialize in processing all types of aluminum, including 6061, 7075 and 2024, you can get high-precision parts for mold, automotive and aerospace fields, such as injection mold parts, die casting mold parts, stamping die parts, engine parts, and aircraft components.
Alloy
AL6061, AL6063, AL5083, AL5052, etc.
Request For Price
Alloy Steel
Alloy steel is an alloy of iron (Fe) and other elements ( including carbon, chromium, nickel, and molybdenum) and is a common metal in Sinker EDM machining. It is widely used in automotive, aerospace, and tool making due to its high strength, hardness, wear and corrosion resistance.
At DEK we specialize in machining all types of alloy steels, including 4130 and 4340. You can get high-precision parts such as: automotive engine components (cylinder blocks, crankshafts, connecting rods), spacecraft components, stamping die parts, die casting die parts.
Alloy
Alloy Steel 1215, 4130,4140,4340,8620,A514 etc.
Request For Price
Brass
Brass is mainly composed of copper and zinc and has a yellow metallic appearance. Brass is widely used in mechanical and electronic fields due to its excellent machinability, good electrical conductivity, thermal conductivity, corrosion resistance and excellent mechanical properties.
At DEK, we specialize in machining all types of brass, and you can get high-precision parts such as bearings, gears, valve bodies, engine components, etc.
Alloy
Brass 260, C360, Cz121,etc.
Request For Price
Bronze
Bronze is a copper-tin alloy with excellent corrosion resistance, electrical conductivity
and castability. At DEK, we specialize in machining all types of bronze, including 544 and 841, and our high-precision service ensures high-quality parts for industries such as manufacturing and construction, perfect for bearings, gears, handrails, connectors, sockets, and more.
Alloy
Bronze 544, 841, 932,954, etc.
Request For Price
Copper
Copper is an extremely electrically conductive metal that is widely used in electronics and automotive due to its excellent thermal conductivity, ease of processing and corrosion resistance.
At DEK, we specialize in machining all types of copper, including 101 and 110, so you can get high-precision parts such as: connectors, heat sinks, engine components, brake system components, and more.
Alloy
Copper C101, C110, etc.
Request For Price
Inconel
Inconel is a nickel-based alloy composed of nickel, chromium and iron. It is often used as a workpiece material or electrode material in Sinker EDM machining. It has excellent high-temperature strength, corrosion resistance and oxidation resistance, and meets the processing needs of various complex shapes.
At DEK, you can get high-precision parts for aerospace and chemical industries, such as engine components, turbine blades, heat exchangers, pipe fittings, valves.
Alloy
Inconel 718, 625,620, etc.
Request For Price
Mild Steel
Mild steel has a carbon content of 0.05% to 0.25%. Due to their low carbon content, mild steels have excellent machinability and malleability. However, mild steel has poor electrical conductivity and has relatively few applications for Sinker EDM.
At DEK, we specialize in machining all types of mild steel, including 1018 and 1215, and in some special cases, mild steel may be used as a Sinker EDM to machine smaller sized parts. For example: screws, nuts, washers, machine parts.
Alloy
Mild Steel 1018, 1045, A36, 1215, etc.
Request For Price
Stainless Steel
Stainless steel is an excellent material choice for Sinker EDM. This is because it has good mechanical properties, corrosion resistance, and high temperature resistance.
At DEK, we specialize in machining all types of stainless steel, including 304 and 316, so you can get high-quality parts for industries such as aerospace, automotive, and medical devices, perfect for turbine blades, nozzles, exhaust system components, and surgical tools.
Alloy
Stainless Steel 301, 303, 304, 304L, 316, 316L, 410,etc.
Request For Price
Titanium
Titanium is a lightweight, high-strength metallic material that is popular in EDM machining. It has high temperature resistance, excellent corrosion resistance and biocompatibility.
At DEK, we specialize in machining all types of titanium, including grades 2 and 5. Titanium is widely used in aerospace and medical applications, and you can get high-quality parts such as: turbine engine components, airframe structural parts, artificial joints, surgical implants
Alloy
Titanium Grade 1, Grade 2, Grade 5, etc.
Request For Price
Tool Steel
Tool steel is mainly composed of carbon, chromium, molybdenum, cobalt and other metal elements, is a high-quality high-alloy steel, with good hardness, wear resistance and heat treatment properties.
At DEK, we focus on machining all types of tool steels, and you can get high-precision parts for aerospace mold manufacturing and medical, such as injection mold parts, stamping mold parts, engine component molds, surgical knives.
Alloy
Tool Steel A2, A3, D2,S7, etc.
Request For Price
Tungsten Steel
Tungsten steel is an alloy composed of elements such as tungsten, cobalt and carbon, with high hardness, high wear resistance, good electrical conductivity and corrosion resistance, it is a commonly used electrode material for Sinker EDM.
At DEK, we specialize in processing all types of tungsten steel, and you can get high-precision parts for mold manufacturing, automobiles and aerospace, such as injection mold parts, stamping mold parts, drawing mold parts, cutting tools, micro parts, engine parts, vortex blades.
Alloy
Tungsten Steel YG6, YG8, YG15, YL50, etc.
Request For Price
Surface Finishing
Various Surface Finishing
Achieve the perfect finish with our post-machining treatments. Explore custom surface finishes that meet your aesthetic and performance needs.
Anodizing
Anodizing is an electrochemical process that enhances metals' corrosion resistance, durability, and appearance, particularly aluminum.
Learn More
Black Oxide
Get functional and aesthetic benefits in one with Black Oxide surface finishing. It's a matte black finish that also adds protection to metals, reducing corrosion and wear over time.
Learn More
Bead Blasting
We can effectively remove rust, paint, scale, and other contaminants from various surfaces using bead blasting. Get a uniform and matte finish on surfaces to enhance the aesthetic appeal of […]
Learn More
Polishing
We enhance the visual appeal of components by providing a smooth and reflective finish with our polishing services. Polished surfaces can also serve as excellent bases for coatings, providing better […]
Learn More
Heat Treatment
Improve the physical and mechanical properties of materials through heat treatment. Improve hardness, increase strength, enhance toughness, stress relief, and more.
Learn More
Passivation
We form a thin, inert layer on the material's surface that protects it from environmental factors that could lead to corrosion. Passivation is commonly used in metals like stainless steel […]
Learn More
Electroless Nickel Plating
DEK offers electroless nickel plating’s adjustable hardness levels, can be engineered to be non-magnetic, adheres tightly to substrates, and the thickness is precisely controllable.
Learn More
Zinc Plating
The compatibility of zinc plating with various materials adds to its appeal, while its ease of application and established use make it a readily available option.
Learn More
DLC Coating
The low friction coefficient of DLC coatings reduces resistance between surfaces, providing durability to components like tools and mechanical parts.
Learn More
PVD Coating
We offer a wide range of decorative finishes with PVD coating, including various colors and aesthetic effects. This process can also make materials more resistant to wear, abrasion, and scratching.
Learn More
Powder Coating
Get a resilient finish that is resistant to chipping, scratching, and fading. Powder coating is your low-cost, eco-friendly finish that has long-term benefits, including reduced maintenance and enhanced longevity
Learn More
Instant & Accurate Quotes
We will thoroughly review each drawing and provide accurate quotes.
We don't use online automated quotation tools, because it is very inaccurate. Online quote platforms rely solely on calculations based on cutting amounts and fixed coefficients, they fail to account for actual processing nuances, such as material deformation after heat treatment, tight tolerance requirements, grinding after heat treatment, etc. Consequently, automated price calculations can lead to inaccuracies, ultimately increasing your costs.
But you can rest assured at DEK!
Our quotations are both cost-effective and accurate because we have a team of professional mechanical engineers who meticulously review each drawing. These engineers boast over 10 years of experience and possess deep expertise in programming, machine operation, post-processing, material properties, and more. Ensure you will get accurate quotes within 6 hours.
PRODUCTION CAPACITY
Production Capacity Guarantee
With perfect production and quality process, you can place your order with confidence.
Advanced CNC Machine Shop
DEK has a range of advanced Sinker EDM equipment, including traditional sinker EDM machines, CNC sinker EDM machines and high-precision sinker EDM machines.
These modern machines can not only efficiently process a variety of complex shapes and high-precision products, but also ensure that each part meets strict tolerances and surface finish standards, meeting customers' demand for high-quality products.
Quality Control
We follow a strict quality inspection process, including IQPC, QE, OQC, and use instruments such as CMM, hardness tester, laser interferometer for high-precision size and hardness inspection.
In addition, our quality personnel use profilometers and microscopes to conduct a thorough appearance inspection to ensure there are no scratches or burrs. Each part is strictly inspected at any stage of production to ensure that the final product fully meets your specifications and quality requirements.
Professional Packaging
After cleaning the parts, we package the product using rustproof paper, plastic bags and foam, depending on the size and characteristics of the parts. Then, after sealing with tape, we label each package so you can quickly identify the contents.
Once the initial packaging is complete, we will pack it into a 5-layer corrugated cardboard box or wooden crate and secure it with pearl cotton or fill it with bubble wrap to prevent damage during transportation. We also attach a packing list to the outer box, which not only protects your Sinker EDM parts, but also makes it easy for you to check and identify your shipment.
Global Shipping
We have rich experience in global transportation and cooperate with many international transportation or express companies, and are committed to providing you with the most convenient and economical logistics services.
We will provide personalized transportation solutions based on your order, for small quantities of products, you can choose international express or air transportation such as DHL, FedEx, UPS, etc. to ensure fast delivery. We will do our best to ensure that your products arrive at their destination safely and quickly.
Our Advantages
2300+ Engineers Love Work With Us
High Precision
DEK has specialized in Sinker EDM machining for many years and can achieve tight tolerances of +/-0.005mm, EDM tools never physically come into contact with the part being machined, creating a superior surface finish.
Complex Shapes
Sinker EDM services are also suitable for products with complex geometries. The electrode never touches the material, so there is no contact damage.
Hole Damage Repair and Minimal Heat Damage
Sinker EDM can repair and clean damaged inner/outer walls with minimal heat generation, resulting in no heat damage to the final part.
3D Capabilities
Sinker EDM has the ability to create 3D parts and assemblies. Since a reverse image must be machined out of graphite, customers are encouraged to provide a 3D model. This allows for a wider range of prototypes and models to be created.
Swift Delivery
DEK has established a long-term good relationship with UPS, FedEX, DHL and other courier companies, which can provide global transportation services for your project, guaranteeing the timely delivery of goods, and delivering the goods to you within 3 days at the earliest.
24/7 Engineering Support
Our professional engineers are available online 24/7 to answer any questions you may have about your EDM machining project.We are always available to provide technical support to ensure that your project is completed on time and within budget.
Testimonials
Peter K. Friis
Engineering Designer
Nicholas Phelan
Technical Buyer
Melville Pelchat
Co-founder
Our Ordering Process
Different from the Internet quote platforms, we produce and complete all the details of your parts in our own factory. Each step is professional and reliable, ensuring you can rest assured.
1
Send RFQ
Send RFQ with 2D/3D drawings and detailed requirements via Email or online form.
2
Review & Quote
Our Engineer team will review every drawing carefully and provide an accurate quote within 6 hours.
3
Confirm Order
Confirm the quote, details and delivery schedule, then sign the contract.
4
Production
Arrange production process, start programming and machining.
5
Quality Control
Strict quality control during production and final inspection.
6
Packaging & Shipping
Pack the parts, attach part identification labels, and start shipping.
Send RFQ 222
This is a block of text. Double-click this text to edit it.
Review & Quote
This is a block of text. Double-click this text to edit it.
Confirm Order
This is a block of text. Double-click this text to edit it.
Production
This is a block of text. Double-click this text to edit it.
QC
This is a block of text. Double-click this text to edit it.
Delivery
This is a block of text. Double-click this text to edit it.
FAQ
Sinker EDM Buying FAQs
Depending on the machine and application requirements, DEK’s Sinker EDM can achieve tight tolerances, often within ±0.005 mm.
Yes, Sinker EDM is often used for prototyping and low-volume production, especially when intricate and precise details are required in the machined components.
The dielectric fluid in Sinker EDM is a flushing medium to remove debris and maintain a stable spark gap. The fluid also helps cool the workpiece and electrode during the machining process.
Yes, Sinker EDM can do 3D machining, creating complex three-dimensional shapes with high accuracy and precision.
In most cases, parts produced by Sinker EDM do not require post-machining heat treatment. However, the need for heat treatment may depend on the specific material and application.
Sinker EDM is typically used for smaller, intricate components. While it can handle larger workpieces, other machining processes may be more efficient for heavy-duty applications.
Sinker EDM can produce fine surface finishes, often around Ra 1.5-0.2 micrometers.
Get An Accurate Quote For Your Next Projects
No matter your project is complicated or simple, no matter is metal or plastic, you will get an accurate quotation within 6 hours.
Get A Quote TodayTECHNOLOGY OVERVIEW
Knowing more about Sinker EDM
What is Sinker EDM?
Sinker EDM (Sinker Electrical Discharge Machining) is a manufacturing process that uses electrical discharges to shape or remove material from a workpiece.
In sinker EDM, a shaped electrode (usually made of graphite or copper) creates a specific form by sparking electrical discharges in a dielectric fluid. These sparks erode the workpiece material, resulting in the desired shape.
If you want to know more about sinker edm, you should not miss this blog.
What are the Advantages of Sinker EDM?
- Precision machining capabilities
- Effective for hardened materials
- Suitable for complex geometries
- Minimal tool wear
- Minimal residual stresses
- Small heat-affected zone
- Versatility across conductive materials
When do you use Sinker EDM?
Sinker EDM is used in various manufacturing scenarios where precision, intricate detailing, and the ability to work with hardened materials are important.
One notable application is producing molds and dies for the plastic injection molding industry. The process's precision and capability to handle hardened tool steels make it ideal for crafting intricate mold cavities with precise geometries.
Additionally, Sinker EDM finds extensive use in aerospace and automotive industries, where complex components made from hardened alloys or exotic materials need precision machining. Turbine blades, for instance, often require intricate shapes and are made from materials resistant to conventional machining methods, making Sinker EDM a suitable choice.
Start Your Projects
We make precision parts easier and cheaper, start your project today.