Forkardt SKM 1200 Operating Instructions Manual Download Page 8

3.0 Description of apparatus 

Ba-Nr.: 930.50.02 E 

Edition: 03/96 

8 / 18 

3.0  Description of apparatus 
3.1 Function 

The FORKARDT SKM meters ( SKM 1200 and SKM 1500 ) are hand-held electronic / 
mechanical devices for measuring stationary gripping force. They contain a force recep-
tor and  
processor-driven electronics with sophisticated software. The various functions are suit-
able for every day measuring and checking of the gripping force of chucks. 

The meters` microprocessor multiplies the level of jaw power by the previously selected 
number of jaws to give the total jaw force of the chuck. This value, which is then dis-
played, is the decisive factor for deciding whether the workpiece can safely be held. 

The last settings remain stored in the meter when it is switched off. Upon switching it 
back on work can be started again immediately. Rechargeable power cells in the meter 
and a mains adapter allow problem-free and mobile use. 

The ergonomic casing is made from aluminium. Its robust construction means that it is 
suitable for use in the rough conditions typical of the modern machine stop. 

3.2 Operation 

Number of jaws

2, 3, 6 

 / 

  

Record maximum / overload 

Gripping force 

0 - 200 kN ( SKM 1200 ) 
0 - 500 kN ( SKM 1500 ) 

Battery

   needs 

charging 

Unit scale display

  t, kN, k lbs 

Meter type

SKM 1200 or SKM 1500 

Key 

Record maximum 

value 

Number of jaws 

Key 

Clear maximum 

value 

Unit scale 

Key 

On / Off 

Adjust zero-point 

Summary of Contents for SKM 1200

Page 1: ...O O P P E E R R A A T T I I N N G G I I N N S S T T R R U U C C T T I I O O N N S S S SK KM M 1 12 20 00 0 S SK KM M 1 15 50 00 0 ELECTRONIC GRIPPING FORCE MEASURING DEVICES ENGLISH...

Page 2: ...tributed to other parties or used for competitive aims without prior written authorisation from FORKARDT GMBH Furthermore FORKARDT accepts no liability for the inaccuracy or incompleteness of this man...

Page 3: ...peration 8 3 3 Technical details 11 3 4 Accessories 12 4 0 Working with the gripping force meter 13 4 1 Preparation of the power chuck and machine 13 4 2 Preparation of the gripping force meter 13 4 3...

Page 4: ...rful chucks produce the high gripping forces neces sary to transmit the power to the work piece maximising the accuracy and high machin ing speeds offered by the machine However it should be noted tha...

Page 5: ...sonnel within the meaning of the safety instructions given in this manual are persons who have been instructed in the handling of chucking workholding equipment and who are familiar with the contents...

Page 6: ...ow the minimum required for machining the stability of the workpiece in the jaws can no longer be guaranteed The result of this is often unclean machining inaccu rately machined workpieces and tool br...

Page 7: ...een recommended or permitted by FORKARDT The FORKARDT SKM meters are exclusively for testing stationary gripping force on non rotating chucks workholding equipment i e spindle speed 0 r p m The spindl...

Page 8: ...which is then dis played is the decisive factor for deciding whether the workpiece can safely be held The last settings remain stored in the meter when it is switched off Upon switching it back on wo...

Page 9: ...s each time this key is pressed The chosen number of jaws is shown in the top right corner of the display It can be changed between 2 3 and 6 jaws The reading eventually displayed is the actual measur...

Page 10: ...cally adjusted when the meter is switched on Note Following such an instance if in doubt the meter should be returned to FORKARDT for servicing If the zero point has been displaced more than once by p...

Page 11: ...value memory Unit scales t kN k lbs Number of jaws 2 3 6 Battery rechargeable with mains adapter 230 VAC 50 Hz Operating time 10 hours from a full charge Recharging time 8 hours with unit switched of...

Page 12: ...ompression bolt 40 164814026 Compression bolt 60 164809027 Compression bolt 80 164814027 Compression bolt 160 164814028 2 Spanners gauge 12 2 Spanners gauge 22 Carry case mains adapter Carry case main...

Page 13: ...s tool holders loading devices chip conveyors protection devices etc for example through unex pected movements or protrusions into the working area and other re strictions of the Operator s movements...

Page 14: ...eds greater than 30 of maximum permitted spindle speed the gripping force of many chucks is reduced significantly by the effect of centrifugal forces on the jaws The full gripping force registered und...

Page 15: ...Where Ma represents the total moment of the top jaws and is calculated as follows Total moment of top jaws Ma Dsp Y G i AB 2 1000 The value for dynamic gripping force Fsp must be calculated for each...

Page 16: ...kgm 0 065 0 09 0 18 0 187 0 33 0 33 0 73 0 73 1 66 2 80 c KT chuck diameter mm KTN KTG 160 200 250 315 400 500 630 C 1 mm 2 3 4 KTN KTG 516 634 909 1075 1777 2547 3130 C 2 mm 2 3 4 KTN KTG 235 308 424...

Page 17: ...spo n 0 and how high is the gripping force at spindle speed n 3000 rpm Dsp 160 mm Yab 18 12 mm Jaw weight G 1 416 kg per jaw Radius of centre of gravity of top jaws Ra Ra Dsp Yab mm 2 160 2 18 12 96 1...

Page 18: ...s overloading a further overload of less than 120 may lead to the display being shut off Again this is shown by the flashing sign The gripping force meter automatically carries out an adjustment of th...

Page 19: ...Notes 1 19...

Page 20: ...RKARDT INDIA LLP Plot No 39 D No 5 5 35 Ayyanna Ind Park IE Prasanthnagar Kukatpally Hyderabad 500 072 India Phone 91 40 400 20571 Fax 91 40 400 20576 Email info forkardtindia com FORKARDT FRANCE S A...

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