Although it is also known as polyacetal or polyformaldehyde, its most well-known brand name is Delrin, which is manufactured by the chemicals company DuPont. Kocetal, Ultraform, and Celcon are also brand names for POM. POM (Polyoxymethylene) is a semi-crystalline engineering thermoplastic characterized by its stiffness, excellent dimensional stability, hardness, and strength.
Delrin can be milled and turned and is traditionally supplied in sheets or extruded rods for this purpose. It is also used for injection molding and plastic extrusion in granulated form. Delin plastic machining is ideal for complex configurations that feature undercuts and internal configurations that can’t be injection molded.
Leading companies across the globe use Delrin for high-load mechanical applications such as gears, safety restraints, door systems, conveyor belts, healthcare delivery devices, and other demanding products and parts. It combines low-friction and high-wear resistance with the high strength and stiffness such applications require. It provides a wide operating temperature range (-40 °C to 120 °C) and good colorability. Delrin also mates well with metals and other polymers and offers excellent dimensional stability in high precision molding.
Delrin offers higher tensile strength, stiffness, creep and fatigue resistance, and significantly higher impact resistance. The combination of these excellent mechanical properties in a single material allows for thinner, lighter-weight parts and shorter molding cycles with potential cost reductions.
Advantages of Machined Delrin
Delrin offers great stiffness, flexural modulus, and high tensile and impact strength. It offers higher tensile strength, stiffness, creep and fatigue resistance, and significantly higher impact resistance. The combination of these excellent mechanical properties in a single material allows for thinner, lighter-weight parts and shorter molding cycles with potential cost reductions.
Additionally, Delrin provides incredible moisture resistance. As a result, it is ideal for applications in wetter environments. Its resistance to hydrocarbons, solvents and neutral chemicals as well as superior dimensional stability and resilience.
Machined Delrin Part Advantages
High fatigue resistance
High creep resistance
High tensile strength and stiffness
Enables thinner, lighter part design
Offers potential for reducing part production costs
Pistons and valves
Food product forming dies
Electrical insulator parts
Gears, bearings, and bushings
Have a Delrin Part You Need to be Machined?
With over 70 years of plastic manufacturing experience, we understand how to work with many different plastics to suit our customers’ needs. We produce the parts that others no quote whether it’s a short-run or a high-volume job.
While you may understand delrin properties and “What is delrin?” or “Is Delrin plastic?”, there is still some potential confusion that can be caused by trying to compare delrin to other materials. After all, delrin plastic material differs from other common plastics in its strength and high tolerances. At the same time, many delrin material properties make it obvious that it is a plastic that can be molded and shaped to many applications.
Oftentimes, customers will confuse delrin with acetal. Acetal is the common name for PolyOxyMethylene (POM), which simply refers to a group of thermoplastics. While delrin plastic is a type of acetal, acetal is not a type of delrin. Rather, delrin fits under the blanket category of acetal materials. Delrin plastic material is the common name for homopolymer acetal.
So what about other forms of acetal? How does the delrin insulator compare? Let’s take a look at copolymer acetal, which is used commonly in electronics and automotive industries. Copolymer shares several delrin material properties, as it has high strength and toughness, as well as high dimensional stability. However, delrin plastic is known to have even more strength and resistance compared to copolymer.
Delrin properties that separate further from copolymer also include its low moisture absorption and its greater stiffness. Delrin plastic also has a lower coefficient of friction, which is just the ratio between the force needed to move one surface horizontally over another, and the pressure between the two surfaces.
Just because delrin mechanical properties differ from other plastics, doesn’t always mean that it is the right choice for your specific application. Delrin insulator, delrin bushings, and other parts are widely used in industrial applications. However, if your industry or company does not need this level of strength, this may be the wrong plastic material for you. The best way to determine the best material is to talk to the delrin material suppliers at Jaco Products. Our team has decades of experience working with products like Delrin, and other specialized plastics, to help our customers get the results they are seeking.
What Does it Take to Machine Delrin Parts? | Delrin Mechanical Properties
When machining Delrin parts, it’s important to note that Delrin is a thermoplastic. A thermoplastic is essentially a plastic polymer that becomes pliable at a certain temperature, and then solidifies upon cooling. Common thermoplastics include acrylic and polyester, though Delrin plastic is also a thermoplastic.
The process of machining Delrin plastic is different from machining a thermoset. A thermoset is different from a thermoplastic because it remains “set” once formed, while thermoplastics melt in the heat. For that reason, it helps to know the Delrin material temperature range when working with this material.
So what does it take to machine Delrin plastic? As mentioned, Delrin plastic material is a popular choice in molding and plastics industries because it’s strong, stable, and easy to work with. For applications that need tight or specific tolerances, these Delrin material properties are extremely important. In order to machine Delrin parts, keep in mind that Delrin is sensitive to heat at or about 250F. If you aren’t aware of the Delrin temperature range, you risk deforming the plastic before it reaches its final application.
Balance the Delrin parts as much as possible to keep dimensions stable while machining. Here at Jaco, our experts understand the intricacies of machining Delrin parts and can expertely work with delrin plastic material to meet your requirements.
In order to cool delrin bushings and other types of delrin, consider air-based coolants. This will achieve close tolerances as well as provide a smooth finish. With the right coolant, you can extend the life of delrin plastic material.
Another key aspect of machining delrin plastic material is to avoid any contamination. There are certain demanding industries, like medicine and aerospace, that need delrin parts that won’t fail. Because of this, the highest level of sanitation needs to be established and maintained by delrin material suppliers. Jaco Products understands the level of precision and accuracy required to safely process delrin plastic material, and deliver products to our customers that meet exact specifications. Where other plastic processing companies may shy away from machining delrin parts, we are eager to take on even the most complex projects.
Talk to the Experts at Jaco about Delrin parts
Our modern, well-maintained lineup of equipment and professional staff allows us to offer service second to none. Let us serve as your delrin material suppliers.
We specialize in engineered materials such as injection molded Delrin® and machined Delrin.
Jaco CNC Delrin machining is an effective manufacturing method for the development of products for many different applications. The CNC (Computerized Numerical Control) process utilizes various computerized devices to complete many manufacturing tasks. We also apply our immense experience with thermoset and thermoplastic materials to further increase the efficacy of CNC Delrin machining.
Our Delrin machining capabilities include 5-axis machining, milling, routing and turning with tolerances of .0001″. We regularly improve our machinery, technology and manufacturing methods, so we can more easily produce parts with high tolerance requirements.
Our technical staff is experienced in all aspects of the injection mold engineering process and is capable of producing quality plastic injection molded Delrin parts because they understand each and every aspect of the plastic injection molding process. We are one of the premier injection molding companies in Ohio.
From our extensive asset base of state-of-the-art equipment to our meticulous attention to detail and product knowledge, we are able to service our established and ever-expanding customer base. We’ve positioned ourselves as the #1 plastic machine shop in the US providing unparalleled service, quality, and pricing.
As a one-stop-shop for custom injection molding services, we maintain in-house facilities for tool design, CNC programming, and fixture manufacturing. In addition, we utilize computer-aided manufacturing CAM and CAD to facilitate our manufacturing and our equipment is ISO 9001: 2008 Registered.
By investing in modern equipment and maintenance of core products currently sold, we are able to provide rapid turnaround of critical production components and drive efficiencies for your operation.
Plastic Materials We Work With
Jaco specializes in the machining of:
Nylon 6/6, 6, 6/12
Why Choose Jaco Over Other Plastic Manufacturing Companies?
Jaco Products offers superior service variety and higher quality materials resources than our competitors. We are also more capable of completing challenging plastic manufacturing projects with even the more strict application requirements. Additionally, with an innovative manufacturing process, we can deliver custom solutions to fulfill the requirements of any application. If you’re looking for a reputable plastics manufacturer, you can depend on Jaco to get the job done.
Advanced quality control processes
Project assistance from prototyping to the final stages of manufacturing.