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A crimping tool, crimp tool, crimper, wire crimper or cable crimper is a hand tool used to crimp connectors onto wires or cables to create a secure and reliable electrical connection. Crimping tools consist of a pair of handles that operate the tool when squeezed together and jaws or dies with dedicated crimping profiles to hold the connector in place. Some tools have a ratchet crimping mechanism to maintain consistent crimping pressure and ensure the connector is fully crimped before the handles are released. To learn how to properly crimp wires, read our comprehensive guide [here](/web/content/discovery/ideas-and-advice/how-to-crimp-wires).

### Types of Crimping Tool

**Mechanical Crimping Tools** or [Plier Crimp Tools](https://uk.rs-online.com/web/c/hand-tools/cable-connector-crimping-tools/crimp-tools/?applied-dimensions=4294824181) are the most common and are handheld and manually operated.

**Hydraulic Crimping Tools**: [Hydraulic Crimping Tools](https://uk.rs-online.com/web/c/hand-tools/cable-connector-crimping-tools/crimp-tools/?applied-dimensions=4290833548,4294869782) use hydraulic pressure to assist with crimping allowing them to be used on large cables and connectors.

**Pneumatic Crimping Tools:** Pneumatic crimping tools use compressed air to operate the crimping mechanism.

**Crimping Machines:** [Crimping Machines](https://uk.rs-online.com/web/c/hand-tools/cable-connector-crimping-tools/crimp-tools/?applied-dimensions=4290833440) are designed to automatically crimp large volumes of wires for production lines.

Some crimping tools are designed to crimp specific connector types such as [Ferrule Crimpers](https://uk.rs-online.com/web/c/hand-tools/cable-connector-crimping-tools/crimp-tools/?applied-dimensions=4290270206), [RJ45 Crimping Tools](https://uk.rs-online.com/web/c/hand-tools/cable-connector-crimping-tools/crimp-tools/?applied-dimensions=4293137066) and [BNC Crimp Tools](https://uk.rs-online.com/web/c/hand-tools/cable-connector-crimping-tools/crimp-tools/?applied-dimensions=4293323963). Other crimp tools use interchangeable dies or jaws to accommodate different connector types for added versatility. Crimping tools are used in a wide range of industries including electrical, automotive, aerospace and telecommunications.

Learn more in our [guide to crimp tools](https://uk.rs-online.com/web/content/discovery/ideas-and-advice/crimp-tools-guide)



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Crimp Tools

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Engineered for precision these cutting-edge crimp tools from Weidmuller ensure flawless connections with every crimp. Designed for versatility and efficiency, they effortlessly handle a wide range of applications, from electrical and industrial to automotive and aerospace. Weidmuller Crimp Tools offer a first-class ergonomic design, providing comfort and ease of use for extended periods. With their robust construction and superior craftsmanship, these tools deliver consistent, high-quality results, meeting the most demanding industry standards. Whether you're a professional electrician, technician, or DIY enthusiast, trust Weidmuller Crimp Tools to elevate your crimping experience.

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Hydraulic Crimping Tools | RS

A hydraulic crimping tool, also known as a hydraulic crimper or hydraulic crimping pliers is a crimping tool that uses hydraulic pressure to crimp a connector to form an electrical connection. A hydraulic crimping tool consists of a pair of handles, a hydraulic pump mechanism along with jaws or interchangeable dies. The stripped wire is inserted into the crimp connector which is then positioned into the jaws or appropriate die cavity of the hydraulic crimper. The handles of the crimp tool are then squeezed together activating a hydraulic pump mechanism causing the hydraulic fluid to be pressurized which forces the dies to close around the crimp connector to create a secure crimp. Once the connector is fully crimped the hydraulic pressure is relieved and the handles of the tool are released allowing the jaws or dies to open and the fully crimped connector to be removed. Another type of hydraulic crimping tool is the battery-operated hydraulic crimping tool which works on the same principles as a manual hydraulic crimping tool but incorporates a rechargeable battery and motor to generate the hydraulic pressure required for crimping. The advantages of having a motor in a crimp tool means there is less physical effort required by the operator and eliminates the need for manual pumping and additional tooling. Battery operated hydraulic crimpers with their cordless design are portable and ideal for use in fieldwork and installation applications that often take place in remote areas where there may not be a power supply including electrical contracting, automotive and telecommunications.Hydraulic crimping tools provide consistent and uniform crimps and so reduce the number of faulty electrical connections. Using a hydraulic system allows high force to be applied with minimal effort from the operator allowing larger cables or wires to be crimped. Hydraulic crimping tools often have built in safety features including pressure release valves to prevent over crimping. Battery operated hydraulic crimping tools may also have LED indicators to show battery life, crimping status or errors

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A ferrule crimper, ferrule crimping tool or bootlace ferrule crimper is used to crimp ferrules, also known as bootlace ferrules, onto the end of cables or wires. Bootlace ferrules are small plastic or metal sleeves used to terminate stranded wires so they can be inserted into an electrical connector without fraying. The end of the wire is stripped and the appropriate size ferrule is selected and placed on the end of the stripped wire making sure all the strands are inserted into the barrel. The ferrule is inserted into the jaws or die cavity of the ferrule crimper and the handles are squeezed together forcing the crimping jaws or dies to close and compress the ferrule around the wire strands forming a secure crimp. Once a full crimping cycle is complete the handles of the ferrule crimping tool are released, and the crimped ferrule removed. Ferrule crimpers come in a range of designs, some have dedicated crimping slots for specific ferrule sizes, others have dies or jaws that accept different ferrule sizes which can be interchanged. Ferrule crimpers are used in a wide range of industries including electronics, automation and manufacturing as well as by electricians and hobbyists.

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An RJ45 crimping tool is used for crimping RJ45 connectors onto the ends of Ethernet cable. RJ45 connectors are used for terminating twisted-pair network cables which are used in Ethernet networking, including Cat5, Cat5e, Cat6 and Cat6a cables. An RJ45 crimping tool consists of a pair of handles, a crimping mechanism along with interchangeable dies or blades specially designed for crimping RJ45 connectors. The Ethernet cable is stripped to expose the twisted pairs of wires, which are then untwisted and arranged according to the specified wire standard (T568A or T568B) to ensure the correct connectivity is achieved. The wires are then inserted and aligned into the slots in the RJ45 connector which is then inserted into the crimp tool die or blade. The handles of the RJ45 crimping tool are squeezed together to crimp the RJ45 connector onto the wire forming a secure electrical crimp. When a full crimp is achieved the handles of the tool are released and the crimped connector removed. RJ Crimping tools are used by professionals who need to repair or create ethernet cables such as network installers and IT technicians

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A BNC crimping tool is used for crimping BNC connectors onto coaxial cable to ensure proper signal transmission and connectivity. BNC connectors are used in video and RF applications, including broadcast equipment, computer networks and CCTV systems. A BNC crimping tool consists of a pair of handles, a crimping mechanism and jaws or interchangeable dies that are specially designed for BNC connectors. The coaxial cable is stripped exposing the inner conductor, dielectric insulation, and shielding layers which are then aligned and positioned inside the BNC connector. The connector is then placed in the crimping tool jaws or die cavity of the crimp tool making sure they are aligned with the crimping collar or sleeve of the connector. Once the handles of the crimping tool are squeezed together the crimping mechanism compresses the crimping collar onto the connector to form a secure and reliable crimp. The handles of the BNC crimping tool will release when the crimp cycle is completed, and the fully crimped BNC connector removed. BNC crimping tools are used by professionals in networking, broadcasting and video production industries to provide quick, secure and reliable installation connections

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Crimping machines also known as crimping presses or crimping benches are larger and more powerful than the smaller handheld crimping pliers and are designed for the automatic stripping and crimping of wires in large volumes. Crimping machines are mains powered and are either permanently mounted on a benchtop or are portable with a carrying handle enabling them to be easily transported. There are several advantages of using a crimping machine including the ability to perform crimping operations faster, create uniform and reliable crimps and reducing user fatigue associated with manual tools. Crimping machines are ideal for use in industries that have manufacturing and assembly lines where a large numbers of wire connections need to processed quickly and consistently such as electronics manufacturing and contracting and automotive and telecommunication industries.

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Ratchet Crimping Tools | RS

A ratchet crimp tool or ratchet crimper is used for crimping connectors onto the ends of wires or cables. Ratchet crimp tools have a ratcheting mechanism which allows consistent and controlled pressure to be applied during the crimping process ensuring that a secure connection is made. The handles of a ratchet crimp tool will not release until a full crimp cycle is completed preventing faulty and weak connections that can be caused by incomplete crimps. Ratchet crimp tools are used in a wide range of industries where large volumes of reliable crimps need to be made including electronics, automotive and telecommunications industries.

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Crimping pliers are handheld mechanical tools for crimping connectors into cables consisting of a pair of handles with jaws at the end. Crimping plier jaws can have different profiles or shapes to suit the connector to be crimped or they may require an interchangeable crimp die to be inserted which is dedicated to that connector type. Some crimping pliers have a ratchet mechanism which allows consistent pressure to be applied to the connector and ensure a complete crimp cycle is achieved before the handles are released. Adjustable crimping pressure is available on some tools which allows the operator to set a specific pressure especially when crimping onto different wire gauges. Some crimping pliers feature insulation crimping enabling them to crimp the connector onto the wire and the insulation barrel simultaneously providing both insulation support and a secure connection. Crimping pliers are used in a wide range of industries including electronics, automotive and telecommunications as well in domestic settings for DIY purposes.

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CRIMPFOX is a series of mechanical crimping tools from Phoenix Contact. This range of professional, high-quality tools is designed to make crimping quick and easy. Designed for comfort and low effort, these crimping tools use quality materials throughout. Using a CRIMPFOX tool ensures a reliable crimp connection too.Within the CRIMPFOX range there are different pliers designed for various wires and connectors. There are tools which offer different crimp times, such as a hex crimp or oval crimp. So you will be sure to find a CRIMPFOX tool that suits you.

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Crimp Contacts for Samtec Connectors  | RS

Samtec's crimping tools, crimp tool, crimper, wire crimper, or cable crimper is a hand tool used to crimp connectors onto wires and crafted with dedicated crimping profiles to securely hold the connector in place, guaranteeing a reliable electrical connection.Featuring a pair of ergonomic handles, Samtec's tools are easy to operate, delivering efficiency and accuracy in every crimp. The design ensures a user-friendly experience while maintaining consistent crimping pressure.Variety of Options:<ul><li>Mechanical Crimping Tools: Handheld and manually operated, these tools are versatile and widely used.</li><li>Hydraulic Crimping Tools: Utilise hydraulic pressure for effective crimping, suitable for larger cables and connectors.</li><li>Pneumatic Crimping Tools: Powered by compressed air, these tools provide a swift and reliable crimping mechanism.</li><li>Specialised Solutions: Tailored for Samtec connectors, Samtec's crimping tools ensure compatibility and optimal performance. Whether you're working with Samtec Ferrule Connectors, RJ45 Connectors, or BNC Connectors, Samtec's tools are designed to meet specific needs.</li><li>Versatility in Industries: From electrical and automotive to aerospace and telecommunications, Samtec's crimping tools find applications in a diverse range of industries, ensuring quality connections in every use case.</li></ul>Enhance samtec's understanding of crimping tools with Samtec's comprehensive guide, providing insights into the world of precision crimping and how it contributes to reliable electrical connections. Choose Samtec crimping tools for unparalleled quality and performance in Samtec's crimping applications.To Read more about Crimp Tools, check out our guide on: <a href="https://uk.rs-online.com/web/content/discovery/ideas-and-advice/crimp-tools-guide">Crimp Tools</a>

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