16458-2

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16458-2 is a standard specification for tool and wire harness accessories, such as crimpers, applicators and presses. This standard defines the use, construction, operation, and performance characteristics of these tools.

Crimpers

Crimpers are used to terminate wire with a variety of connectors. Generally, they have two replaceable dies that slide over a connector, and a pair of handles to control the clamping force of the die and apply the termination. The dies can be configured for different sizes and types of connectors, such as small push-on type connectors or large multi-terminal connectors. The crimpers can also be adjusted to provide the appropriate amount of force to complete the connection.

Applicators

Applicators are used to apply special materials, such as heat shrink tubing, to terminate a connection. These materials are often combined with a sealant to provide protection against environmental conditions, such as moisture or dust. The applicator has a plunger that is actuated by the operator and applies an even distribution of the material. The applicators can also be configured for different sizes and types of connectors.

Presses

Presses are used to complete connections where additional pressure must applied. These could include terminals as well as large multi-terminal connectors. The presses have a cylindrical housing that is loaded with the terminal or connector. A plunger is then actuated, compressing the connector and making the connection. The plunger can be adjusted to provide the required amount of pressure for the connection.

Accessories

Tool and wire harness accessories provide additional functionality for the tools. These include depth stop shafts, anti-rotation plates, wire strain reliefs and cable clamps. The depth stop shaft is used to set the depth of the crimp, the anti-rotation plates prevent the connector from rotating during the crimp, the wire strain relief provides additional strain relief for the terminated wire, and the cable clamps are used to secure cables in the vicinity of the connectors.

Working Principle

The working principle of these tools and accessories is relatively simple. The tools use mechanical force to complete the connection, either by crimping the connector or compressing the connector with a plunger. The accessories are used to provide additional functionality, such as setting the depth of the crimp or providing strain relief for the terminated wire.

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