Most everything is the same as the basic tapping unit, except the stroke is increased by 1-1/4" to a full 3-3/8" stroke. The overall length of the unit increases by 1-5/8. When ordering extra lead screws you must indicate that they are used in the extended stroke unit by ordering LS-XX-ES where XX is the desired pitch.
The motor quick change option allows the rapid changing of hydraulic motors for different torque and RPM. When ordering spare hydraulic motors, you must specify that the motor is equipped with the quick change option. It is also recommended that a spare spindle sleeve is attached to the motor. The swapping of the spindle sleeve between motors is not recommended. The quick change option does not add any length to unit but will increase the width from 3-5/16" to 5-1/8".
The spindle quick change option allows the rapid changing of lead screw pitches. When ordering spare lead screws, you must specify that the leader is equipped with the quick change option. It is also recommended that a chuck is attached to the lead screw. The swapping of the chuck between lead screws is not recommended. The quick change option does not add any length to unit but will increase the width from 3-5/16" to 5-1/8".
This options pre-wires the unit with an 8-pin connector for rapid wiring of unit. This option allows the rapid connection and disconnection of the unit. Please refer to the Parts document for additional information and wiring color codes. The EP option includes a 12 foot cord.
This options pre-wires the unit with an 8-pin connector for rapid wiring of unit. This option allows the rapid connection and disconnection of the unit. Please refer to the Parts document for additional information and wiring color codes.
The environment around machining centers is the pits -- flooding coolant, material chips, grease, dirt and heat. But the proximity switch takes it all in stride. Completely waterproof, the switch functions just fine being splashed by either water based coolant or black oil. The envelope of the Jiffy-Tap is unaffected by the use of the proximity switch option.
Proximity sensors are made to interface with solid state controllers such as programmable controllers (PLC's). Each switch is normally open (N.O.), and NPN. NPN type sensors are designed to be a current sink device. Current from the controller is supplied to the sensor and it will "sink" the current to ground when the sensor is activated. Sensor activation is triggered by the depth setting adjustment bolts.
The proximity switch housing is manufactured from high quality ABS plastic resin. The switch can handle supply voltages between 10-30 VDC, with 100 mA maximum load. The length of cord is approximately 42 inches. The ambient temperature should be between -13 to 158°F (-25 to 70°C). The environmental rating is IP 67 and is equipped with short circuit and reverse polarity protection.
Replacement Proximity Switch: J-453.
The reverse option (option -RO on Jiffy-Taps) prevents tap breakage by instantly retracting the lead screw if the tap misses the hole or if there is no hole in the part. The reverse option uses a mechanical linkage that senses motion in the lead screw nut. Standard lead screw translation is 0.030". The electrical sensing switch is triggered causing the tap to instantaneously reverse and retract the tap. The sensitivity of the lead screw nut can be adjusted by the strength of the internal compression springs. The standard sensitivity is hard for large taps over 1/2" and soft for taps 1/2" and under. When ordering this option, specify either hard or soft sensitivity. The internal springs that determine sensitivity can easily be changed in the field.
The Auto-Reverse switch can be wired in parallel with the depth retract switch, or as a separate circuit. The Auto-Reverse switch provides a common (Com.) terminal and both normally open (N.O.) and normally closed (N.C.) terminals. The separate Auto-Reverse switch provides you with great flexibility in designing and implementing your control circuit. For example: to stop a machine, turn on a light or open a reject chute. The Auto-Reverse switch is rated up to 4 amps at 125 volts A-C or 1/2 amp at 125 volts D-C. Use relays, if necessary, to control a higher current or voltage. The replacement Auto-Reverse switch is part number J-5397.