Instruction Sheet
Crimping Die Assemblies
408-6877
58085-1, 58086-1, and 58174-1
07 NOV 14 Rev C
PROPER USE GUIDELINES
Cumulative Trauma Disorders can result from the prolonged use of manually powered hand tools. Hand tools are intended for occasional use and low
volume applications. A wide selection of powered application equipment for extended-use, production operations is available.
Die Retaining
Stationary Jaw
Screws
Indenter Die
PRO-CRIMPER* III
Crimping Die
Frame Assembly
Assembly
354940-1 (Ref)
58085-1 (Ref)
Movable
Anvil Die
Jaw
Center Contact
Ferrule Crimping
Crimping Chamber
Chamber
DIE ASSEMBLY CONNECTOR BASE
PART NO. PART NO.
58085-1 221185, 221199, 221221, 221402
58086-1, 58174-1 221185, 221199, 221221
Figure 1
1. INTRODUCTION
This instruction sheet covers the use and maintenance of Crimping Die Assemblies 58085-1, 58086-1, and
58174-1, which are used to crimp 75-Ohm RF Series BNC Dual Crimp Connectors. The die assemblies are
designed to be used in PRO-CRIMPER III Frame Assembly 354940-1.
Refer to Figure 1 for a list of connectors that are compatible with the die assemblies. For additional connector
part number information, refer to the PRODUCT INFORMATION number listed at the bottom of this page. For
instructions concerning the operation of the tool frame, refer to Instruction Sheet 408-9930. Read these
instructions thoroughly before using the die assemblies.
NOTE
All dimensions are in millimeters [with inch equivalents in brackets]. Figures and illustrations are for identification only, and are
not drawn to scale.
Reasons for reissue are provided in Section 8, REVISION SUMMARY.
2. DESCRIPTION (Figure 1)
Each die assembly consists of an indenter and an anvil, both of which contain two crimping chambers. The
small crimping chamber produces a box crimp on the center contact of the connector, and the other crimping
chamber crimps the connector ferrule. Each die is held in the tool frame by a single screw.
3. DIE INSTALLATION
1. Slide the die assembly into the partially-opened tool jaws. The anvil die must be installed in the
movable jaw of the tool and the indenter in the stationary jaw. The center contact crimping chamber
must be toward the front of the tool as shown in Figure 1.
2. Insert, but do not completely tighten, the die retaining screws.
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ORIGINAL INSTRUCTIONS 408-6877
3. Close the tool jaws and carefully align the dies so that the anvil die enters the indenter die. Once the
anvil has entered the indenter, place a copper bus bar (1.57 0.05 mm [.062 .002in.] diameter) into
the center contact crimping chamber of the die assembly.
4. With bus bar in place, close the tool jaws completely. Hold the tool handles together and tighten the
die retaining screws with the appropriate screwdriver.
4. CRIMPING PROCEDURE
NOTE
For detailed information on cable selection, cable strip lengths, and proper assembly of the connector, refer to the instructions
provided with the connector.
Make sure the connector being used is compatible with the die assembly; then proceed as follows:
4.1. Center Contact (Figure 2)
1. Slide the ferrule onto the cable, then strip the cable to the proper dimensions.
2. Slide center contact onto center conductor of cable; then insert contact assembly into the center
contact crimping chamber of the anvil die. See Figure 2.
NOTE
Make sure that the flange on the end of the center contact butts against the edge of the die. See Figure 2.
3. Crimp the center contact by holding the cable and contact in place and closing the tool handles until
the ratchet releases.
4. Allow the handles to open fully, and remove the crimped center contact assembly from the crimping
dies.
Crimping the Center Contact
Cross-Sectional View
Flange on End
Plug Contact
of Contact
Crimping Die
Flange on End of
Center Contact
Butts Against Die
Jack Contact
Flange of End
of Contact
Anvil Die
Stripped Cable
Crimping Die
Figure 2
4.2. Ferrule (Figure 3)
1. Insert the crimped center contact into the connector body until the cable dielectric butts against the
dielectric inside the connector body. The flared cable braid must fit around the support sleeve of the
connector body.
2. Slide the ferrule forward over the braid until the ferrule butts against the shoulder on the connector
body.
3. Place the ferrule in the ferrule crimping chamber of the anvil die so that the shoulder on the connector
body butts against the edge of the die. See Figure 3.
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