Assembly, Subassembly Manufacturing, and Custom Manufacturing of Technical Springs
We supply pre-assembled units, subassemblies, and custom-made technical springs.
Trust us as an experienced manufacturer of technical springs
Less parts handling thanks to defined units and picking logic.
You receive the spring, clip/stamped part, and pre-assembled unit from a single source instead of from multiple suppliers
Custom-made to suit the function
The geometry and spring characteristics are tailored to the installation space, load, and operating environment
Quick Overview: Assembly & Subassembly Production for Springs
If you already use standardized assembly processes, we’ll handle the pre-assembled preparation:
- We place, position, and secure the springs, sort the different variants, and assemble the kits according to your piece-count logic.
The result is a delivery format that integrates seamlessly into the receiving and assembly processes without requiring any additional sorting or counting steps.
If you need a ready-to-install functional unit, we don’t just supply the spring “as an add-on”—we include it as an integral part of the assembly.
- This can be a spring mechanism, a clip module, or a combination of a stamped and bent part and a spring.
We tailor everything to your specifications and to how it will be handled later in production.
Delivery condition: ready for assembly and tailored to your production process, compatible with your picking logic, variant management, and packaging unit.
Practical Examples from Assembly Manufacturing
How assembly production works in practice depends on the function, the installation situation, and the components involved. Typically, individual parts from our production or supplementary parts from suppliers are combined into a unit ready for installation.
For example, we manufacture a sheet metal part and a wire-formed part and then assemble them into a single product. This way, the customer receives not loose individual components, but a pre-assembled unit ready for immediate further processing.
In other cases, we manufacture the spring and add a supplied component—such as a rod—to it. This component is inserted into the spring to create a finished functional unit.
We incorporate springs into other components, such as rubber tubing. Alternatively, we add a spring or a bent part from our own production to parts provided by the customer.
We tailor our assembly services to your needs
We handle the specific assembly steps so that the components arrive at your location ready for assembly and in the desired configuration.
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Inserting, positioning, and securing springs
Pre-assembly of the spring in/on components, including defined positioning and securing. -
Kits and Sets Based on Your Piece-Count Logic
Assortment of units (e.g., spring + clip + mating part) with a specified number of pieces per package. -
Variant Separation and Unambiguous Assignment
Single-variant provision to ensure that variants remain unambiguous during goods receipt and assembly. -
Handling-Friendly Feeding
Removal and feeding tailored to your assembly sequence, with precise positioning upon request.
And optionally:
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Testing according to specifications
Functional or force testing according to defined criteria, if required for release/series production. -
Special Packaging & Labeling
Packaging units, labeling, and protective packaging tailored to your process.
Custom Springs
Custom manufacturing based on drawings, samples, or specifications
For us, “custom-made” means:
- Engineering springs, wire-formed parts, clips, and stamped and bent parts manufactured according to drawings, samples, or specifications, designed precisely for your application.
Especially when installation space is limited, spring characteristics are specified, or installation situations are unique, off-the-shelf products are rarely the right solution.
Instead of “making something fit,” we manufacture the component so that its function, installation space, and spring force/stroke are all compatible from the start. This also includes clear version control for purchasing and production.
We support you in the transition from prototyping and small-batch production to mass production.
From Inquiry to a Ready-to-Install Assembly
To ensure that assembly production and custom manufacturing can be seamlessly integrated into your processes, we follow a transparent procedure.
Please send us a drawing, 3D data, or a sample part and describe the function the assembly is intended to perform in your assembly process. Additional information regarding quantity, variants, packaging specifications, and picking logic is helpful.
We clarify the assembly sequence, the fastening method, the variant options, and the desired delivery format. This ensures that we determine early on how the assembly will be delivered to you in a manner that aligns with your production process.
Depending on the project status, we first finalize the design using samples or prototypes, or proceed directly to mass production. This creates a solid foundation for approval and delivery.
Upon approval, we deliver units or assemblies ready for installation in the specified configuration, with appropriate packaging, labeling, and direct allocation for goods receipt and production.
Request an Assembly or Custom-Made Product
Would you like to have assemblies, pre-assembled units, or technical springs custom-made? Then let’s discuss your requirements.
Phone: 0371 572 85-0
Email: info@federn-weigel.de
Questions and Answers on Assembly, Subassembly Manufacturing, and Custom Manufacturing
What is the difference between assembly, pre-assembly, and subassembly production?
During assembly or pre-assembly, springs are inserted, positioned, secured, or assembled into kits. In subassembly production, we deliver a functional unit in which the spring is already an integral part of the subassembly—for example, as a spring mechanism, a clip module, or a combination of a stamped and bent part and a spring.
What information do you need to submit a request?
Drawings, 3D data, or a sample part are ideal. Additionally, information on quantity, variants, packaging requirements, and details regarding the desired picking logic in your production process is helpful.
Can you also produce custom-made items?
Yes. We manufacture technical springs, wire-formed parts, clips, and stamped and bent parts based on drawings, samples, or specifications. This is particularly useful when installation space, spring characteristics, or the application do not allow for a standard solution.
How do you ensure that the assembly is compatible with our process?
We tailor the delivery format, product variants, fastening methods, packaging units, and handling to your processes. This ensures that the parts arrive at your facility ready for assembly and in a manner that aligns with your processes.
Are testing, labeling, and special packaging also available?
Yes. Upon request, we can perform inspections according to your specifications, as well as labeling, special packaging, and transport protection, all tailored to your logistics and manufacturing processes.
