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SMW Autoblok KNCS-NB - User Manual

SMW Autoblok KNCS-NB
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KNCS-NBX - E - 2011-11 - 1
POWER CHUCK
Type KNCS-NB
Type KNCS-NBX
INSTRUCTION MANUAL
QUICK JAW CHANGE

Table of Contents

Questions and Answers

  • B
    brian57Aug 6, 2025
    Why is my SMW Autoblok KNCS-NB machine spindle vibrating heavily?
    • J
      Joanne CarterAug 6, 2025
      Heavy vibrations on the machine spindle can occur due to several reasons. It might be caused by an imbalance due to a component or top jaws. In this case, change the shape of the top jaws or balance with counterweights on the chuck body. Another cause can be an imbalance on parts such as the machine spindle, drive, actuating cylinder, cylinder adapter, chuck adapter, or draw tube. To resolve this, center, balance, or replace the parts one after another, checking for actuating cylinder defects. Also, imbalance due to a collision can cause heavy vibrations, in which case you should send the chuck back to SMW-AUTOBLOK for inspection.
  • A
    Allison ParkerAug 10, 2025
    What to do if the gripping force is reduced in my SMW Autoblok KNCS-NB?
    • P
      patricia52Aug 10, 2025
      If the gripping force is reduced, it could be due to insufficient lubrication or contamination of the chuck by dirt. In this case, lubricate or clean the chuck, and check the type of grease used. A malfunction of the chuck can also cause reduced gripping force. Inspect all chuck parts and replace any damaged parts with original SMW-AUTOBLOK spare parts. An actuating cylinder defect might also be the reason, so check the draw pull of the cylinder at different pressures.
  • P
    pjonesAug 20, 2025
    Why is the jaw stroke insufficient on my SMW Autoblok KNCS-NB?
    • R
      Randy WoodAug 20, 2025
      An insufficient jaw stroke may be due to several reasons. Check the draw tube length, as a wrong length can cause this issue. A cylinder stroke that is too short could also be the cause, so verify the cylinder stroke. Additionally, ensure that the draw tube adapter has not become loose. Lastly, if the chuck is contaminated or filled with too much grease, disassemble the chuck, clean it, and relubricate it.
  • A
    arnoldelizabethAug 26, 2025
    What to do if the jaw cannot be disengaged on my SMW Autoblok Industrial Equipment?
    • A
      Ashley BryantAug 26, 2025
      If the jaw cannot be disengaged, especially after the first installation, the draw tube might be too short, preventing the piston/jaw change position from being reached. Check the draw tube length. The chuck might also be heavily contaminated with dirt or filled with too much grease; in this case, disassemble and clean the chuck. If the chuck was actuated during jaw change, disassemble it and replace the cambolts. Finally, ensure you are using the original SMW-AUTOBLOK key, as using the wrong key can cause this issue.
  • J
    Julian NicholsonAug 31, 2025
    How to unlock a jaw that is locked in the guideway of SMW Autoblok KNCS-NB?
    • K
      kimberly34Aug 31, 2025
      If a jaw is locked in the guideway, it could be due to using a jaw from other manufacturers that does not correspond to SMW-AUTOBLOK specifications. Use original SMW-AUTOBLOK jaws. Also, the master jaw might be deflected, or the mounting surface of the top jaws might not be on the same level, contaminated, or damaged. Check the top jaws and replace them if necessary. The master jaw might also be deflected due to the torque of the mounting bolts being too high; ensure the correct torque is maintained.
  • J
    jbradshawNov 14, 2025
    What causes radial runout or insufficient repeatability in SMW Autoblok Industrial Equipment?
    • R
      robert70Nov 14, 2025
      Radial runout or insufficient repeatability can be caused by several factors. If the top jaws are not bored or ground properly, rebore or regrind them. Ensure that the jaws are inserted into the correct guideway (jaw 1 in guideway 1, jaw 2 in guideway 2, etc.). Also, check if the master jaw is contaminated with dirt or damaged; clean the serration of the master jaws or replace them if necessary. Mounting bolts for the top jaws that are too short, too long, or overloaded can also cause this issue, so check the length of thread engagement, replace the screw, and verify the torque. Furthermore, jaws that are too high might be the problem, so change the top jaws or the method of gripping. Lastly, a damaged or worn-out chuck can lead to these issues, requiring you to send the chuck back to SMW-...

Summary

Overview

Declaration of Incorporation

General Safety Instructions

Correct Use

Specifies proper application and usage of the SMW-AUTOBLOK power chuck.

Personnel

Defines requirements for personnel involved in installation, operation, and maintenance.

Safety Precautions to the Lathe

Details critical safety measures to be observed when working with the lathe.

Technical Details

Lists key technical specifications and limits for the power chuck.

Maximum Speed

Provides information and warnings regarding the maximum permissible spindle speed.

Remaining Risks

Highlights residual risks and user responsibilities for their mitigation.

Jaws

Gives instructions and warnings related to the use and mounting of jaws.

Maintenance

Sets out requirements for regular maintenance and checks of the power chuck.

Actuating Cylinder

Covers safety precautions for the actuating cylinder and its force limits.

Description of Function

Type Code Description

Deciphers the meaning of codes used in the power chuck type designations.

Technical Data KNCS-NB

Actuating Cylinders

VNK Cylinders

Describes the features and specifications of VNK series actuating cylinders.

SIN-S Cylinders

Details the features and specifications of SIN-S series actuating cylinders.

SIN-HL Cylinders

Explains the features and specifications of SIN-HL series actuating cylinders.

Technical Data KNCS-NBX

Installation

Before Installing

Lists crucial checks and considerations before commencing chuck installation.

Chuck with Rotating Ring Nut

Details installation steps specifically for chucks equipped with a rotating ring nut.

Removing Draw Tube

Explains the procedure for removing the draw tube from the spindle.

Installation of Draw Tube

Provides instructions for correctly installing the draw tube into the chuck.

Installation of Chuck

Covers the final steps for mounting the chuck onto the machine spindle.

Operation

Mounting Top Jaws on Master Jaws GBK

Guides the mounting process of top jaws onto the master jaws.

Boring Soft Jaws

Provides procedures and tips for boring soft jaws to ensure repeatability.

Jaw Change

Changing or Repositioning Jaws

Details the step-by-step procedure for altering jaw positions or replacement.

Jaw Safety Interlock

Describes the safety mechanism that ensures correct jaw insertion and function.

Maintenance and Disassembly Preview

Introduces maintenance and disassembly procedures for the chuck.

Maintenance and Lubrication

Maintenance Intervals

Specifies recommended intervals for lubrication and disassembly based on operating conditions.

Lubrication of the Chuck

Details the process for lubricating the chuck using specific grease types.

Disassembling and Repair

Removal of Chuck from Machine Spindle

Guides the safe removal of the chuck from the machine spindle.

Chuck with Rotating Ring Nut Disassembly

Explains the specific steps for disassembling a chuck with a rotating ring nut.

Spare Parts

Trouble Shooting

Calculation Formulas

12-Months Warranty

24-Months Warranty

Documentation of Maintenance

Confirmation of Receipt of Instruction Manual

SMW Autoblok KNCS-NB Specifications

General IconGeneral
BrandSMW Autoblok
ModelKNCS-NB
CategoryIndustrial Equipment
LanguageEnglish

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