Self-Reversing Tapping Head, 0-1/4 inch (M2-M7), 2600-4002

Operation Instructions of Accusize Self-Reversing Tapping Heads

Application and Features

• Depth control
  • After the machine spindle travel stops, the tap advances 0.140" ± 0.004". For example: to achieve a tap depth of 1.000", stop the spindle at 0.860". The tap will advance an additional 0.140" to 1.000" deep.
• Set torque as high as possible within the safe limits of the top. NC machine cutting feed equals (top pitch x spindle RPM). Reverse feed equals 2 X (top pitch X spindle RPM).
• Right or left-hand yapping without modification; re-entry cushion
• Please do not use the self-reversing tapping heads as drill chucks.
• Guaranteed depth control; within ±0.004"
• Chatter-free clutch has positive engagement which allows for a smoother, more accurate operation and more rapid reversal
• Radial Float is self-centering to compensate for hole center misalignment
• The unique Double Spring mechanism produces automatic feed and cushion drive. There are 2 springs for the feed and 2 springs for the reversal
• Pre-set torque control permits easy operation of tap brake torque control
• Head comes complete with 2 collets
• Accusize Self - Reversing Tapping Head are Featured of a reversible rotation, overload protection, and adjustable torque as well as advantages like a compact structure, high efficiency, safe and reliable, and simple operation.
• Working range: The chuck can be supplied with three specifications for various taps from M2 to M20, with their working ranges referring to the following table, and can be selected for connecting with the machine tool based on the machine spindle tapered hole. Adapters with a taper of MS-JT3/6/33 or MS-M16/20 are attached.
• 2600-4002 package along with arbor MT1-JT6, MT3-JT6 / 2600-4012 package along with arbor MT3-JT6, MT4-JT6 / 2600-4022 package along with arbor MT3-20mm Thread, MT4-20 mm Thread

Main Technical Specification

Method and Step

Figures 1

1. Mounting the chuck: Clean up the connecting parts of both the adaptor and the chuck and mount them onto the machine spindle after they have been assembled.
2. Mounting the tap: Insert the tap into the chuck while watching the position of the tap handle from a window. Then, insert the square end of the tap handle into the square hole of the clamping device and tighten the lock nut with a wrench prior to fastening the top screw of the clamping device.
3. Mounting the brake rod: Referring to Figures 1, the brake rod which should be of a certain rigidity to withstand the torque of a reversing tap(A rod made of steel 45#,20-30, HRC45 is recommended) is mounted either on the nonrotating part of the spindle end or on the worktable.
4. Adjusting the torque: A proper torque shown with numbers 1, 2, 3, 4 on the main body periphery is selected according to the diameter to be topped and the material of the workpiece, showing that the chuck can stand the torque varies from small to large and can be selected by the operator himself. In case of materials which are difficult to be tapped, two operations are recommended.
5. Tapping: The operator should align the tap mounted on the machine tool with the machined screw blank hole on the workpiece and operate referring to Figures 2.