Transfer Press Stamping

Billions of drawformed, deep drawn, and Eyeletype™ parts annually

The transfer press is a type of mechanical press commonly used when producing small to medium-sized parts in high volume, which necessitates a variety of forming processes. This press is referred to as a "transfer" press because a workpiece needs to be transferred from one station to the next in a specific sequence to produce a complex, multi-dimensional part or component.

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The transfer press

Transfer press metal stamping is a specific type of metal forming process that uses a transfer press to create complex parts and components from countless metals and alloys most commonly in coiled strip form. The procedure entails gradually transforming the metal into the finished component using a system of punches and dies. Two main types of transfer presses used in the metal forming industry are the Individual Cam Operated Plunger (I.C.O.P.) press and the Modular or Solid Bed "Die Set" press.

By automating multiple operations, transfer press stamping meets the demand for intricate, high-volume metal components, resulting in efficient and cost-effective production. This process eliminates the need for manual part repositioning by utilizing automated mechanical transfer systems for seamless component advancing and repositioning. Transfer press stamping moves workpieces through multiple stations, shaping and refining them into their desired forms, using a single press to operate the entire system of tools. This streamlined approach is widely used in a variety of industries, including automotive, defense, electrical, HVAC, and medical to manufacture precision components in volume.

Draw forming

Strip material or cups are formed into shallow drawn metal parts in cost-effective stations where the depth of draw is less than the narrowest crosswise dimension or diameter of the part. "Forming" generally refers to stamping processes that do not cut metal. Cold forming makes strong, lightweight products faster and cheaper than other processes such as turning, machining, or additive manufacturing. The precise process maintains tight tolerances, uses raw materials efficiently, and produces simple to complex geometries. Draw formed and deep drawn products have a higher strength-to-weight ratio due to lacking mechanical seams and joints compared to other metal forming methods.

  • Drawn parts are seamless, giving them impressive strength and durability

  • Lower unit production cost, particularly with higher runs

  • Flexible individual tooling

  • Reduced tooling costs

  • While it’s ideal for cylindrical components, it also can be the preferred production method for more complex part geometries

  • Decreased material waste, which helps keeps costs lower than other processes

Deep drawing

Similar to draw formed components, deep drawn metal goods are made in the same way, but they can be distinguished because the depth of the draw is frequently larger than the overall diameter or narrowest crosswise dimension of the component. Deep drawing is a highly effective process with high levels of dependability and efficient material utilization, which is critical in the production of geometrically complex products. Deep drawing also provides significant economies of scale and optimizes operational costs when compared to other subtractive or additive processes.

We use deep drawing to create strong components with tight tolerances and high surface finish from various metals and alloys, such as copper, silver, brass, aluminum, and stainless steel. Industries worldwide, including automotive, medical, and munitions, use the process. As a leading global supplier in the deep drawing industry, Cly-del provides fully integrated manufacturing with in-house design, engineering, captive toolmaking, and carbide departments.

  • Maintain tolerances.
    The deep draw forming process is extremely repeatable and once set, can produce hundreds of thousands of parts within a tight tolerance range.

  • Strength.
    Unlike casting or machining, rolled metals have an elongated and cohesive grain structure. Due to the nature of the draw forming process, that structure flows uninterrupted throughout a deep drawn part, which results in an exceptionally strong finished product.

  • Metal diversity.
    A wide range of metals can be deep drawn, providing a number of manufacturing options. We can offer assistance in choosing the best material or alloy for your application.


Eyeletype™ identifies parts that fall under the frequently ambiguous category of metal articles created on an eyelet machine. An Individual Cam Operated Plunger (I.C.O.P.) press remains the traditional "eyelet machine". However, these versatile machines can also be tooled to produce a wide variety of draw formed and deep drawn components. Additionally, Eyeletype™ parts can be stamped progressively or by way of die set transfer presses.

Cly-Del, a leader in the eyelet industry, has produced a wide variety of eyelets and Eyeletype™ products since our earliest production efforts. With our extensive experience and expertise, we boast one of the largest collections of eyelet machines and production capacity in the industry.

Waterbury, Connecticut, emerged as a prominent center for producing eyelets, small metal rings used for reinforcing or fastening purposes. One significant contribution to the industry was the invention of the standard eyelet machine, which revolutionized the eyelet manufacturing process. This machine, developed in Waterbury, by the Waterbury Farrel Foundry and Machine Company, introduced automated production methods, increasing efficiency and output. The eyelet machine played a pivotal role in positioning Waterbury as a leader in the eyelet industry, setting the stage for the city's continued prominence and contribution to this specialized field.

Auxiliary drawing operations

Cly-Del has production capacity to produce traditional eyelets as well as ferrules, shells, and countless other configurations of formed metal articles in high-volume. The following processes are inherent or can be incorporated transfer press production, often eliminated costly secondary operations:

  • Beading

  • Burnishing

  • Bulging

  • Knurling

  • Ironing

  • Lettering

  • Heading

  • Reverse draws

  • Coining

  • Side Piercing

  • Debossing

  • Step Draws

  • Reducing

  • Tapping

  • Re-draws

  • Trimming

  • Embossing

  • Chamfering

  • Extruding

  • Threading

  • Ribbing

  • Component assembly

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