Puller guide

Eine Detailansicht diverser KUKKO Abzieher

External extraction

A particularly common application is external extraction. Here, the part to be extracted, e.g. a gear wheel, a pulley or a ball bearing, is gripped from the outside. By tightening the spindle, the part to be extracted is released from the shaft.

External extraction tutorial

In this video, our KUKKO testimonial Eric explains the initial situation for external extraction using the example of a ball bearing that sits on a shaft. You will also learn practical tips on how to upgrade a standard extractor with suitable accessories for universal use.

Modular pullers

The modular system is a unique selling point of KUKKO. This results in numerous combination options for the 20 and 30 series with different hook types, thrust pieces, extensions, 2- and 3-arm crossheads and mechanical and hydraulic spindles.

  • Explain graphic what outside peel is.

    Outside peel

    The most common application for extracting is external extracting with sliding, always parallel extractor hooks. The external extractors of series 20, 30 and 11 can be used to grip all components that are located on a shaft and are freely accessible from the outside.

  • Explanation graphic inside peel

    Inside peel off

    Thanks to the 2-in-1 function, an external extractor can be converted into an internal extractor by simply reversing the extractor hooks, making it multifunctional.

Special puller

Since no two pullers are alike, the KUKKO range includes special pullers in a wide variety of designs and sizes. Whether pullers with lateral clamping clamp, conical self-clamping or swiveling puller legs - KUKKO has the right solution for every application!

  • Schematic diagram 204 series

    The 2-arm bearing extractor "Cobra" series 204 with lateral clamping jaw is used for extracting particularly tight-fitting ball bearings, bearing rings and workpieces. Thanks to the clamp, the contact pressure of the puller legs is increased many times over.

  • Schematic representation Series 41

    The universal pullers with swiveling puller legs (Series 41) ensure maximum freedom of movement for individual adaptation to the respective span width and depth, even in restricted ambient conditions.

Optional extensions

2-150-EModular extension for trigger hooks (single)
MP_219Clamp for 2-arm puller
MP_9_hydraulic_additional_pressSeries 9 Hydraulic auxiliary press

 

  • Schematic diagram extensions

    Extensions

    For the 20 and 30 series, KUKKO offers modular extensions (compatible with sizes 1 to 20). The extensions can be combined with each other and thus adapted to the required clamping depth.

  • Schematic representation different trigger hooks

    Different types of trigger hooks: Standard - Narrow - Extra Narrow

    The narrow trigger hooks ensure that even narrow and poorly accessible spaces can be reached. The extremely slim design of the take-off hooks grips optimally in particularly narrow and poorly accessible places.

  • Schematic representation of the spindles and changeable pressure pieces

    Spindle tips and exchangeable pressure pieces

    Interchangeable pressure pads are the perfect upgrade for KUKKO pressure spindles and guarantee particularly gentle honing on a wide variety of surfaces.

  • Schematic representation clamp

    Clamp

    The clamp for 2-arm pullers is used to support stability during pull-off operations with extensions. For an even better hold, the clamp presses the puller hooks particularly tightly against the part to be pulled off.

  • Schematic diagram Grease hydraulic spindle

    Grease hydraulic spindle

    The hydraulic spindle allows controlled and safe operation from 7-20 t. It uses the full power potential of the extractor, above the possibilities of a mechanical spindle. Moreover, when replacing the mechanical spindle with a hydraulic one, the driving force to be applied is significantly reduced.

  • Schematic diagram grease hydraulic auxiliary press

    Grease hydraulic auxiliary press

    The grease hydraulic auxiliary presses are a good tool to significantly increase the pressure power when removing very tight parts. The hydraulic presses are simply clamped between the spindle and shaft with the mechanical spindle. No modification of the puller is necessary! (For use with mechanical KUKKO pullers from size 3.)

Dos and don'ts for exterior stripping

  • Schematic diagram of puller correctly applied

    For central shafts, the puller must be applied centrally.

  • Schematic diagram of puller set at an angle

    If the shaft is not centered, pullers with parallel running pullers can also be pulled off asymmetrically.

  • Schematic diagram of puller correctly applied

    The slide pieces of the trigger hooks must always be completely and firmly seated on the crosshead.

  • Schematic diagram of trigger hook too far outside

    Under no circumstances may the trigger hooks protrude above the crosshead.

  • Schematic diagram step by step peeling off

    If several parts are to be removed, always remove them step by step. Never pull off several parts at the same time.

  • Schematic representation incorrect load distribution

    If there is sufficient free space around the part to be pulled off, we recommend a 3-arm puller for optimum load distribution.

  • Schematic diagram Positioning the puller centrally

    The contact surfaces of the pullers must sit completely and straight under the part to be pulled off. A 2-arm puller is used when there is not enough clearance for the 3-arm version.

  • Schematic representation Puller grips unevenly

    The trigger hooks do not grip evenly under the part to be pulled off.

Practical examples

Praxisbeispiel eines KUKKO Abziehers
Praxisbeispiel eines KUKKO Abziehers
Praxisbeispiel eines KUKKO Abziehers