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Summary of Contents for SCHUNK ROTA THWplus
- Page 1 Power chuck ROTA THWplus Assembly and operating manual Translation of original operating manual...
- Page 2 Imprint Imprint Copyright: This manual is protected by copyright. The author is SCHUNK SE & Co. KG. All rights reserved. Technical changes: We reserve the right to make alterations for the purpose of technical improvement. Document number: 0889021 Version: 04.00 | 18/07/2023 | en...
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Page 3: Table Of Contents
8.2 Handling the chuck and the base jaws............. 34 8.3 Base jaw position................35 8.4 Change or supplement of jaws ............... 36 9 Maintenance ..................37 9.1 Lubrication ..................37 04.00 | ROTA THWplus | Power chuck | en | 0889021... - Page 4 9.3 Technical condition ................38 10 Disposal ..................... 39 11 Chuck mounts and Spare parts..............40 11.1 Chuck mounts ..................40 11.2 Spare parts ..................40 12 Drawings ................... 42 04.00 | ROTA THWplus | Power chuck | en | 0889021...
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Page 5: General
Dangers for persons! 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. 04.00 | ROTA THWplus | Power chuck | en | 0889021... -
Page 6: Applicable Documents
Catalog data sheet of the purchased product * Calculation of the jaw centrifugal forces, "Technology" chapter in the lathe chuck catalog * The documents labeled with an asterisk (*) can be downloaded from schunk.com. 04.00 | ROTA THWplus | Power chuck | en | 0889021... -
Page 7: Basic Safety Instructions
04.00 | ROTA THWplus | Power chuck | en | 0889021... -
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. 04.00 | ROTA THWplus | Power chuck | en | 0889021... - Page 9 Ensure that the working environment is clean before starting assembly and installation work. Wear suitable safety shoes. Follow the safety and accident-prevention regulations when operating the chuck, especially when working with machine tools and other technical equipment. 04.00 | ROTA THWplus | Power chuck | en | 0889021...
- Page 10 Exception: The supporting jaw variant 3 protrudes beyond the chuck base jaw due to the construction of the jaw. In this case, the T-nuts must always be inserted completely into the groove of the chuck base jaw. 04.00 | ROTA THWplus | Power chuck | en | 0889021...
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Page 11: Notes On Safe Operation
(according to VDI 3106). If the chuck jaws are changed, adjust the stroke control to the new situation. 04.00 | ROTA THWplus | Power chuck | en | 0889021... - Page 12 500 clamping strokes, at the latest (This moves the lubricant back to the surfaces of the force transmission, so that the clamping force is retained for longer). 04.00 | ROTA THWplus | Power chuck | en | 0889021...
- Page 13 Replace damaged parts with original SCHUNK spare parts. Replace the chuck jaw mounting screws if there are signs of wear or damage. Only use screws with a quality of 12.9. 04.00 | ROTA THWplus | Power chuck | en | 0889021...
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Page 14: Substantial Modifications
Only allow specialists to remedy malfunctions. Spare parts Only ever use original SCHUNK spare parts. Environmental regulations Comply with the applicable legal norms when disposing of waste. 04.00 | ROTA THWplus | Power chuck | en | 0889021... -
Page 15: Using Personal Protective Equipment
2.7 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). 04.00 | ROTA THWplus | Power chuck | en | 0889021... -
Page 16: Warranty
Observe the maximum number of clamping cycles } 6 [/ 19] Observe the specified maintenance and lubrication intervals, } 9 [/ 37] Parts touching the workpiece and wear parts are not included in the warranty. 04.00 | ROTA THWplus | Power chuck | en | 0889021... -
Page 17: Torques Per Screw
(screw quality 12.9) Screws for base jaws M10 M12 - M16 M20 - GB / GBK / GBK-V / GBKL perm. tightening torque in Nm 04.00 | ROTA THWplus | Power chuck | en | 0889021... -
Page 18: Scope Of Delivery
Jaw change key Operating manual Short operating manual ROTA THW plus 260, 315: Power chuck Set of base jaws Mounting screws Jaw change key Operating manual Short operating manual Mounting wrench 04.00 | ROTA THWplus | Power chuck | en | 0889021... -
Page 19: Technical Data
The chuck is in perfect condition and lubricated with SCHUNK LINOMAX plus special grease. 04.00 | ROTA THWplus | Power chuck | en | 0889021... - Page 20 If one or more of these prerequisites is altered, the diagrams will no longer be valid. Chuck setup for clamping force/RPM diagram Clamping force / speed diagrams ROTA THW plus 165-43 Clamping force / speed diagrams ROTA THW plus 185-52 04.00 | ROTA THWplus | Power chuck | en | 0889021...
- Page 21 Technical data Clamping force / speed diagrams ROTA THW plus 215-66 Clamping force / speed diagrams ROTA THW plus 260-81 Clamping force / speed diagrams ROTA THW plus 315-104 04.00 | ROTA THWplus | Power chuck | en | 0889021...
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Page 22: Calculations For Clamping Force And Speed
RPM limit is exceeded, the clamping force drops below the required minimum clamping force F . Consequently, the spmin workpiece is released spontaneously. Do not exceed the calculated RPM. Do not fall below the necessary minimum clamping force. 04.00 | ROTA THWplus | Power chuck | en | 0889021... - Page 23 CAUTION For safety reasons, in accordance with DIN EN 1550, the centrifugal force may be a maximum of 67% of the initial clamping force. 04.00 | ROTA THWplus | Power chuck | en | 0889021...
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Page 24: Calculation Example: Required Initial Clamping Force For A Given Speed
Note: Masses of the jaw mounting screws and T-nuts are not taken into account. First the required effective clamping force F is calculated using the machining force stated: Initial clamping force during shutdown: 04.00 | ROTA THWplus | Power chuck | en | 0889021... -
Page 25: Calculation Of The Permissible Speed In Case Of A Given Initial Clamping Force
The following data is known from previous calculations: Initial clamping force during shutdown F = 17723 N Machining force for machining job F 3000 N (application- specific) 04.00 | ROTA THWplus | Power chuck | en | 0889021... -
Page 26: Grades Of Accuracy
6.3, as well as uneven lubricant application. In order to prevent damage resulting from these residual risks, the entire rotor is to be dynamically balanced in accordance with DIN ISO 21940-11. 04.00 | ROTA THWplus | Power chuck | en | 0889021... -
Page 27: Attachment And Disassembly Of The Chuck
The permissible limit is 0.005 mm as per DIN 6386-1. The contact surface must be chamfered and clean at the bore holes. 04.00 | ROTA THWplus | Power chuck | en | 0889021... - Page 28 [mm] 0.02 0.02 0.02 0.02 0.02 0.02 0.03 0.03 0.03 0.03 Assembly procedure Move the draw tube to its foremost position by actuating the clamping cylinder (see Fig. 2). 04.00 | ROTA THWplus | Power chuck | en | 0889021...
- Page 29 1, 2 or 3. Check that the base jaw and jaw stroke can easily move. 04.00 | ROTA THWplus | Power chuck | en | 0889021...
- Page 30 The spindle is disassembled in the same way but in the reverse order. At regular intervals, check that the retainer ring (item 17) is seated firmly (see Fig. 3). 04.00 | ROTA THWplus | Power chuck | en | 0889021...
- Page 31 Check the clamping force and if necessary repeat the lubrication procedure. 04.00 | ROTA THWplus | Power chuck | en | 0889021...
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Page 32: Disassembling And Assembling The Chuck
A wedge bar (item 9) consists of nine parts in total. Spring tension pre-loads the pressure bolt (item 12) and the pressure pieces (item 16). Remove the wedge bar (item 9) using the appropriate safety measures and using safety goggles. 04.00 | ROTA THWplus | Power chuck | en | 0889021... - Page 33 The lathe chuck is assembled in the same way but in the reverse order. Before installation, lubricate parts well with LINO MAX plus special grease paste. CAUTION Allergic reactions if lubricating grease comes into contact with the skin. Wear protective gloves. 04.00 | ROTA THWplus | Power chuck | en | 0889021...
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Page 34: Function And Handling
(item 2). In this position, the base jaws can be moved or changed radially inwards or outwards. It is not possible to pull out the jaw change key in this position. 04.00 | ROTA THWplus | Power chuck | en | 0889021... -
Page 35: Base Jaw Position
It is vital that this jaw position is adhered to so that all teeth are engaged for the force transmission from the wedge bars to the base jaws or top jaws. 04.00 | ROTA THWplus | Power chuck | en | 0889021... -
Page 36: Change Or Supplement Of Jaws
Tighten the jaw mounting screws to the specified torque } 4 [/ 17]. Tighten the jaw mounting screws with a torque wrench. On no account tighten the screws with an extension pipe or with hammer blows. 04.00 | ROTA THWplus | Power chuck | en | 0889021... -
Page 37: Maintenance
(For product information about LINOMAX plus, see the "Accessories" chapter of the SCHUNK lathe chuck catalog or contact SCHUNK.) CAUTION Allergic reactions if lubricating grease comes into contact with the skin. Wear protective gloves. 04.00 | ROTA THWplus | Power chuck | en | 0889021... -
Page 38: Maintenance Intervals
If the clamping force has dropped too far or if the base jaws and clamping piston no longer move properly, the chuck has to be disassembled, cleaned, and relubricated. Only original SCHUNK spare parts may be used. 04.00 | ROTA THWplus | Power chuck | en | 0889021... -
Page 39: Disposal
Dispose of the chuck's metal parts as scrap metal. Alternatively, you can return the chuck to SCHUNK for proper disposal. 04.00 | ROTA THWplus | Power chuck | en | 0889021... -
Page 40: Chuck Mounts And Spare Parts
Item Designation Quantity Chuck body Base jaws Piston Standard protection sleeve Mount Jaw-change bolt Complete wedge bar Eccentric bolt Thrust bolt Spring bolt Safety bolt 04.00 | ROTA THWplus | Power chuck | en | 0889021... - Page 41 Compression spring for grid Steel ball for grid Eye bolt Jaw change key Cross handle for jaw change key Holding piece Spring sleeve Pressure sleeve Compression spring for jaw change key 04.00 | ROTA THWplus | Power chuck | en | 0889021...
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Page 42: Drawings
Drawings 12 Drawings * from size Assembly tool for ROTA THWplus 260 and 315 Eye bolt for ROTA THWplus 260 and 315 Base jaw Marking line 04.00 | ROTA THWplus | Power chuck | en | 0889021... - Page 43 Drawings 04.00 | ROTA THWplus | Power chuck | en | 0889021...
- Page 47 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 Wir drucken nachhaltig I We print sustainable...
- Page 48 2B, NCA, NCD, NCE, NC, NCF, NCK, NCO, NCR, NCS, NCX, TH, THW Heinz-Dieter SCHUNK GmbH & Co. Spanntechnik KG certifies that the above-mentioned products, when used as intended and in compliance with the operating manual and the warnings on the product, are safe according to the national regulations and: −...
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