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Summary of Contents for SCHUNK ROTA NCO2
- Page 1 Translation of Original Operating Manual Power Chuck ROTA NCO2, ROTA NCO2-JA Assembly and Operating Manual...
- Page 2 Imprint Imprint Copyright: This manual is protected by copyright. The author is SCHUNK GmbH & Co. KG. All rights reserved. Technical changes: We reserve the right to make alterations for the purpose of technical improvement. Document number: 1506425 Version: 01 | 22/02/2022 | en...
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Page 3: Table Of Contents
Function and handling .................. 33 Change or supplement of jaws ................ 33 Disassembly of chucks for complete cleaning or in case of damage.... 33 Individual jaw adjustment function.............. 35 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425... - Page 4 12 Assembly drawings .................... 41 13 Translation of the original declaration of incorporation .......... 43 14 Appendix on Declaration of Incorporation, as per 2006/42/EC, Annex II, No. 1 B .. 44 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425...
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Page 5: General
Non-observance can lead to irreversible injury and even death. CAUTION Dangers for persons! Non-observance can cause minor injuries. CAUTION Material damage! Information about avoiding material damage. WARNING Warning about hand injuries 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425... -
Page 6: Applicable Documents
• Calculation of the jaw centrifugal forces, "Technology" chapter in the lathe chuck catalog * The documents marked with an asterisk (*) can be downloaded on our homepage schunk.com 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425... -
Page 7: Basic Safety Instructions
• if it is used in working environments that are not permissible. • if the product is operated without a protective cover. 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425... -
Page 8: Notes On Particular Risks
The lathe chuck may only be used on machines and facilities • that fulfill the minimum requirements of the EC Machinery Directive; specifically, they must have effective technical measures to protect against possible mechanical hazards. 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425... - Page 9 Wear safety gloves. • Observe the safety and accident prevention regulations during • operation of the chuck, especially in connection with machining centers and other technical equipment. 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425...
- Page 10 Ensure the chuck's axial and concentric runout. • Check options for remedying imbalances on special top jaws • and workpieces. Reduce the speed. • Wear hearing protection. • 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425...
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Page 11: Notes On Safe Operation
If the machine tool or technical equipment can reach a higher speed than the chuck's top speed, a reliable speed limiter must be installed and proof must be provided that the speed limiter is effective. 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425... - Page 12 Follow all the applicable legal standards for health and safety during servicing. Use suitable personal protective equipment, especially protective gloves, goggles, and safety boots - paying particular attention to the operating system and hazard assessment. 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425...
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Page 13: Substantial Modifications
No substantial modifications may be made to the chuck. If the operator carries out a substantial modification to the chuck, the product shall no longer conform to the EC Machinery Directive 2006/42/EC. 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425... -
Page 14: Personnel Qualification
Only allow specialists to remedy faults. Spare parts Only ever use original SCHUNK spare parts. Environmental regulations Comply with the applicable legal norms when disposing of waste. 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425... -
Page 15: Using Personal Protective Equipment
When using this product, you must comply with the relevant health and safety at work rules and you must use the required personal safety equipment (minimum: category 2). 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425... -
Page 16: Warranty
• Observe the maximum number of clamping cycles • Observe the specified maintenance and lubrication intervals, } 9 [/ 37] Parts touching the workpiece and wear parts are not included in the warranty. 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425... -
Page 17: Torques Per Screw
M10 M12 M14 M16 M20 M24 Max. admissible torque M (Nm) Tightening torques for the protection sleeve mounting screws (screw quality 8.8) Screw size Tightening torques M (Nm) 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425... -
Page 18: Scope Of Delivery
Power lathe chuck incl. mounting screws Set of base jaws with module serration (NCO2) Set of split base jaws with individual adjustment and module serration (NCO2-JA) Eye bolt M24 (DIN 580) 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425... -
Page 19: Technical Data
Monitoring of functions (piston movement and actuating pressure) must be performed in accordance with the guidelines of the Berufsgenossenschaft (employers' mutual insurance association). 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425... -
Page 20: Clamping Force / Speed Diagrams
Max. actuating force Clamping force/RPM diagram for ROTA NCO2 800 rpm n Permissible 33% Top jaw 3 12 kg Top jaw 2 18 kg Top jaw 1 24 kg 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425... - Page 21 Top jaw 1 24 kg Clamping force/RPM diagram for ROTA NCO2 1200 rpm n Permissible 33% Top jaw 3 12 kg Top jaw 2 18 kg Top jaw 1 24 kg 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425...
- Page 22 Top jaw 1 24 kg Clamping force/RPM diagram for ROTA NCO2-JA 800 rpm n Permissible 33% Top jaw 2 18 kg Top jaw 3 12 kg Top jaw 1 24 kg 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425...
- Page 23 Top jaw 1 24 kg Clamping force/RPM diagram for ROTA NCO2-JA 1200 rpm n Permissible 33% Top jaw 2 18 kg Top jaw 3 12 kg Top jaw 1 24 kg 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425...
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Page 24: Calculations For Clamping Force And Speed
The sum of the initial clamping force F and the total centrifugal force F is the effective clamping force F 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425... - Page 25 From this we can derive the calculation of the initial clamping force during shutdown: (+) for gripping from the outside inwards (–) for gripping from the inside outwards 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425...
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Page 26: Calculation Example: Required Initial Clamping Force For A Given Speed
• Gripping from the outside in (application-specific) • Machining force F = 3000 N (application-specific) • max. RPM n = 3200 RPM ("Lathe chuck data" table) • RPM n = 1200 RPM (application-specific) 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425... - Page 27 Centrifugal torque for one jaw: The chuck has 3 jaws, the total centrifugal torque is: The total centrifugal force can now be calculated: Initial clamping force during shutdown that was sought: 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425...
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Page 28: Calculation Of The Permissible Speed In Case Of A Given Initial Clamping Force
= 1495 RPM is smaller than the maximum perm permissible RPM of the lathe chuck n = 3200 RPM (see "Lathe chuck data" table } 6.1 [/ 19]). This calculated RPM may be used. 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425... -
Page 29: Grades Of Accuracy
In order to prevent damage resulting from these residual risks, the entire rotor is to be dynamically balanced in accordance with DIN ISO 21940-1. 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425... -
Page 30: Mounting
Danger of injury due to sharp edges and rough or slippery surfaces Use personal protective gear, especially safety gloves. Check the delivery for completeness and for transport damage. 7.2 Mounting of the Power Chuck Chuck assembly 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425... -
Page 31: Horizontal Attachment
(See "Chuck assembly" Fig. - E and the table of the attainable maximum radial and axial run-out tolerances in the Assembly chapter) 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425... - Page 32 • Fasten the top jaws marked 1, 2 and 3 to the base jaws using T-nuts and screws. The spindle is disassembled in the same way but in the reverse order. 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425...
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Page 33: Function
(item 3). • Remove the central mounting screw M36x90. • Remove all cover plates (item 28) in the chuck and unscrew the screws (item 22). 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425... - Page 34 Linomax plus special grease paste. Only use original SCHUNK spare parts when replacing damaged parts. The chuck is assembled in the same way, but in reverse order. 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425...
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Page 35: Individual Jaw Adjustment Function
Spindle rotation to the right – jaw moves radially inwards. Spindle rotation to the left – jaw moves radially outwards. The jaws are adjustable by 30 mm: 15 mm inwards and outwards. 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425... - Page 36 Function 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425...
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Page 37: Maintenance
9.3 Changing the top jaws When changing the top jaws, the serration has to be cleaned and greased with SCHUNK LINOMAX plus special grease. 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425... -
Page 38: Disposal
• Dispose of the chuck's metal parts as scrap metal. Alternatively, you can return the chuck to SCHUNK for proper disposal. 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425... -
Page 39: Spare Parts
Sign 160 x 65 x 6 SCHUNK Sign 160 x 65 x 6 "Chuck designation + size". Countersunk screw DIN EN ISO 10642 M6x12 – 10.9 Expander MB700-080 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425... - Page 40 Sign 160 x 65 x 6 SCHUNK Sign 160 x 65 x 6 "Chuck designation + size". Countersunk screw DIN EN ISO 10642 M6x12 – 10.9 Expander MB700-080 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425...
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Page 41: Assembly Drawings
Assembly drawings 12 Assembly drawings ROTA NCO2 800 – 1400 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425... - Page 42 Assembly drawings ROTA NCO2-JA 800 – 1400 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425...
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Page 43: Translation Of The Original Declaration Of Incorporation
Person authorized to compile the technical documentation: Alexander Koch, Address: see manufacturer's address Mengen, November 2021 p.p. Alexander Koch; Head of Engineering Design 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425... -
Page 44: Appendix On Declaration Of Incorporation, As Per 2006/42/Ec, Annex Ii, No. 1 B
Risk of loss of stability 1.3.2 Risk of break-up during operation 1.3.3 Risks due to falling or ejected objects 1.3.4 Risks due to surfaces, edges or angles 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425... - Page 45 1.5.16 Lightning Maintenance 1.6.1 Machinery maintenance 1.6.2 Access to operating positions and servicing points 1.6.3 Isolation of energy sources 1.6.4 Operator intervention 1.6.5 Cleaning of internal parts 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425...
- Page 46 Supplementary essential health and safety requirements for machinery intended for underground work Supplementary essential health and safety requirements for machinery presenting particular hazards due to the lifting of persons 01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425...
- Page 48 Translation of Original Operating Manual H.-D. SCHUNK GmbH & Co. Spanntechnik KG Lothringer Str. 23 D-88512 Mengen Tel. +49–7572-7614-0 Fax +49-7572-7614-1099 info@de.schunk.com schunk.com Folgen Sie uns I Follow us...
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