Penn-Elkco Spring is a leading manufacturer of compression springs, extension springs, torsion springs, continuous length springs, wire forms, fore-slide machining and metal stampings, for your specific applications in quantities from 1 to 1,000,000 since 1956.
Our team of engineers, designers and machinists specialize in creating metal components for automotive, gas engines, diesel engines, and appliances. We use cutting-edge technology, engineering-driven teams and unmatched project management for successful project launches. Contact us today to discuss how we can help you with your project.

Compression Springs

Penn-Elkco Spring is a trusted manufacturer known for producing high-quality Compression Springs. Compression springs are open-coiled, helical springs that provide exceptional resistance to comprehensive loads. At Penn-Elkco, we offer a diverse range of compression springs that find applications in various industries. We understand that different applications require specific wire shapes, and we have the capability to manufacture compression springs using different wire shapes based on your requirements.
Our compression springs can be produced with varying solid diameters and free lengths to meet the specific needs of your application. We offer a variety of end types to choose from, including open ends, closed ends, open ends with ground surfaces, closed ends with ground surfaces, and closed ends with squared surfaces. This ensures that we can provide compression springs that are tailored to your exact specifications.
At Penn-Elkco Spring, we prioritize precision and quality in the production of compression springs. Our experienced team of engineers and technicians utilize advanced manufacturing techniques and state-of-the-art equipment to ensure consistent and reliable results. We have the expertise to manufacture compression springs that deliver optimal performance and durability.
When you choose Penn-Elkco Spring for your compression spring needs, you can trust in our commitment to excellence and expertise in the field. Our wide range of compression springs, customizable options, and dedication to quality make us the preferred choice for diverse applications. Experience the difference of working with a trusted leader in compression spring manufacturing—choose Penn-Elkco Spring.
Various body shapes for Compression Springs

• Straight Body Compression Springs
• Conical Body Compression Springs
• Tapered Body Compression Springs
• Hourglass Body Compression Springs

Pitch Options for Compression Springs

• Continuous pitch
• Variable pitch

Coil Ends for Compression Springs

• Closed
• Closed and ground
• Open
• Open and ground

We have facilities to engineer and fabricate compression springs in straight, tapered or cone-shaped sections to fill your needs.

Extension Springs

Penn-Elkco Spring is a leading manufacturer specializing in the production of high-quality Extension Springs. Extension springs are close-coiled, helical springs designed to provide exceptional resistance against tensile loads. Their unique construction sets them apart from compression springs, as the coils are wound tightly together with a built-in initial tension. This initial tension plays a crucial role in regulating the force required to deflect the spring.
Our expertise lies in manufacturing a wide range of extension springs, with a particular focus on those that require loops or hooks. Our offerings include single-loop, double-loop, half-loop, and side-loop designs, as well as offset loops, half loops, swivel hooks, long round ends, threaded plugs, and v-hooks. We cater to diverse industries and applications, ensuring that our extension springs meet the specific requirements and expectations of our clients.
At Penn-Elkco Spring, we prioritize precision, quality, and customer satisfaction in the production of extension springs. Our experienced team of engineers and technicians utilize advanced manufacturing techniques and state-of-the-art equipment to ensure consistent and reliable results. We understand the importance of delivering customized solutions, taking into account factors such as load capacity, deflection range, material specifications, and environmental considerations.
When you choose Penn-Elkco Spring for your extension spring needs, you can trust in our commitment to excellence and expertise in the field. We are dedicated to providing high-performance extension springs that meet the demands of various industries. Rely on our exceptional products to deliver optimal performance, durability, and reliability for your specific applications. Experience the difference of working with a trusted leader in extension spring manufacturing—choose Penn-Elkco Spring.
Applications for Extension Springs Include:

• Automotive Interiors
• Automotive Exteriors
• Garage Door Assemblies
• Vise-grip Pliers
• Carburetors
• Trampolines
• Washing Devices
• Farm Machinery
• Toys
• And so many more...

Torsion Springs

At Penn-Elkco Spring, we specialize in custom fabrication of Torsion Springs from high-quality, square, or rectangular wire. Torsion Springs are an essential component in many industries, including the automotive, construction and electronics industries.
Our torsion springs are helically wound and designed to exert torque or force in a radial direction, making them ideal for a wide range of applications. From clothespins to garage doors, our torsion springs are custom-designed to meet your specific needs, whether you need a single or double torsion spring.
Our skilled team can configure the legs of your torsion spring on the level of axial, tangential, radial, or one leg radial over the center and one tangential leg. This ensures that your torsion spring will be perfectly suited to your specific application.
We have extensive experience in providing torsion springs for a wide range of applications, including the drive mechanism of locks, counterbalances, and lever return applications. Our torsion springs come in a range of sizes, from miniature springs used in electronic devices to large torsion springs used in chair control units.
At Penn-Elkco Spring, we use only the highest quality materials and the latest technology to fabricate our torsion springs, ensuring that they meet the highest standards of quality and performance. Our team of skilled professionals is committed to providing our clients with the best possible customer service and satisfaction.
If you're in need of custom torsion springs for your project, look no further than Penn-Elkco Spring. We offer reliable and efficient fabrication services for torsion springs that are tailored to your specific needs. Contact us today to learn more about our torsion spring services and how we can help you with your next project.
Emergency Replacement Compression Springs
We can react immediately to custom fabricate that critical broken compression spring to get your equipment back up and running. Contact Us first.

APQP serves as a guide in the development process and also a standard way to share results between suppliers and automotive companies. APQP specifies three phases: Development, Industrialization and Product Launch. Through these phases 23 main topics will be monitored. These 23 topics will be all completed before the production is started. They cover such aspects as: design robustness, design testing and specification compliance, production process design, quality inspection standards, process capability, production capacity, product packaging, product testing and operator training plan, among other items.

Crucible Metal Solutions is a certified Woman Owned Small Business providing solutions to meet your casting, machining, tooling and prototype needs. Crucible Metal Solutions is a nobake foundry with a full-service pattern shop focused on offering quality products at a competitive cost with on-time delivery. 

Casting Capabilities:

• Low-volume, no bake sand castings in brass, bronze and aluminum alloys
• From 1 piece to 1,000s
• Aluminum pour weights up to 1,000 lbs
• Bronze and brass pour weights up to 2,400 lbs
• Stainless steel and iron pour weights upon request
• Certification of compliance including PPAP, chemical and physical analysis, x-ray and dye penetrant standards

Machining Capabilities:

• CNC milling and machining up to 120” x 63”
• Sinker EDM machining up to 35” x 19”
• In-house reverse engineering capabilities
• Design and modeling of pattern tooling and fixturing
• Permanent and low-pressure molds, core boxes and workholding fixturing
• 6’ Romer portable CMM 

KEY MACHINING CAPABILITIES UNDER ONE ROOF.
​Whether your product needs milling, turning, or any other CNC machining process, our expertise and equipment will manufacture it to your exact specifications. We have a variety of horizontal and vertical machining centers as well as CNC lathes for round components.
CNC HORIZONTAL MACHINING CENTER CELLDecreased customer lead time is a direct result of our world-class CNC horizontal machining center cell that produces high-quality parts at a swift rate.
Our horizontal machining center cell:

• Includes a 24-pallet system that requires no fixture preparation. Each pallet can hold up to four fixtures – this means we can run up to 96 different jobs at once.
• Replaces fixtures in just one to three minutes versus one to three hours when replacing fixtures manually. With this free time, we perform value-added tasks.

These benefits, through the use of our machining center cell, give us the flexibility to manufacture any volume and a high variety of components at a competitive cost – allowing us to quickly respond and adjust to customers’ needs.

Our experience in the coating industry gives us the ability to determine cost-effective processes, meet your exact specifications, and improve the performance of your parts.
Our team will work with you to determine your part’s coating requirements including non-stick, abrasion resistant, corrosion or rust resistant, dry lubricated, or food grade.
We coat parts from small manufacturing companies to major OEM’s including Case New Holland, Bobcat, Raymond Corporation, and Price Industries.
We apply high-performance specialty coatings including:

• Polyester Powder
• Teflon® and Xylan® (PTFE, PFA, FEP, ETFE)
• Halar® (ECTFE)
• Kynar® (PVDF)
• Rilsan® (nylon)
• FBE (fusion bond epoxy)

Receive the Casting RFQ
Understanding the request
Identify the previous Pain Points
DFM with Customer(s)
Our Engineers do a process Map
Develop Best Cost
Present Solution to customer for WOW moment

​Build tooling – weekly updates
Make Internal Samples
Verify all requirements are Met
Provide PPAP Package to customer

​Samples made correctly; Project is on-time as promised
Customer is happy

Design for Manufacturability is the engineering practice of designing products in such a way that they are easy to manufacture. The concept exists in almost all engineering disciplines but the implementation differs widely depending on the manufacturing technology. DFM describes the process of designing or engineering a product in order to facilitate the manufacturing process in order to reduce its manufacturing costs. DFM will allow potential problems to be fixed in the design phase, which is the least expensive place to address them. Other factors can affect the manufacturability, such as material, the form of the raw material, dimensional tolerances, and secondary processing such as finishing and machining.