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Title : Brake Motors  
Description :

Full port design minimizes pressure losses and increases flow capacities thus reducing energy and pumping costs.

  
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Description :

"ELeEN" Brake motors are normally supplied with D.C. fail safe brakes. also known as normally ON brake. The motor is braked (Locked) when power is not applied i.e. de-energized to brake. This ensures real fail safe braking. The construction is quite robust and requires very limited maintenance. With wearing of liners on the rotor of brake, the air-gap has can be easily adjusted. If necessary. the rotor can be easily replaced completely as well. The brake is mounted on end covers on non-driving end of the motor. It comes with a Manual release lever.

Selection :
Depending upon the
application ,the service
factor of the brake has to be
selected for proper braking.
Types Of Load Safety factor
Low mass, uniform loading, non-intermittent operation 2
Low mass, light Shock load with intermittent operation 2.5
medium mass, light Shock load with intermittent operation 3
Heacy mass, light Shock load with intermittent operation 3
Overhauling Loads 3.5

Service factor for guidelines are mentioned in the selection table.
How ever while selecting the service factor, other criteria like mounting positions. type oftransmission and reductions should also be considered as well.

OUTPUT 2-POLE 3000RPM 4-POLE 3000RPM 6-POLE 3000RPM 8-POLE 3000RPM
KW HP FRA DC BRA SAF FRA DC BRA SAF FRAME DC BRA SAF FRA DC BRK SAF
      BRA TOR FAC   BRA TOR FAC   BRA TOR FAC   BRA TOR FAC
    SIZE Nm     SIZE Nm     SIZE Nm     SIZE Nm    
0.18 0.25 63 6 4 6.72 63 6 4 3.36 71 6 4 2.32 80 6 4 1.75
0.37 0.50 71 6 4 3.24 71 6 4 1.62 80 8 8 2.24 90S 8 8 1.63
0.37   -- -- -- -- 71 8 8 3.24 -- -- -- -- 90S 10 16 3.26
0.55 0.75 71 6 4 2.15 80 8 8 3.15 80 8 8 1.5 90L 10 16 2.4
0.55 0.75 71 8 8 4.3 -- -- -- -- 80 10 16 3       0.75
1.00 80 8 8 3.24 80 8 8 1.62 90S 10 16 2.4 100L 10 16 1.68  
0.75 1.00 80 10 16 3.24 80 10 16 3.24 -- -- -- -- 100L 12 32 3.36
1.10 1.50 80 8 8 2.15 90S 10 16 2.15 90L 10 16 1.5 100L 12 32 2.24
1.10 1.50 80 10 16 4.3 -- -- -- -- 90L 12 32 3 -- -- -- --
1.50 2.00 90S 8 8 1.62 90L 10 16 1.62 100L 12 32 2.24 112M 12 32 1.63
1.50 2.00 90S 10 16 3.24 90L 12 32 3.24 -- -- -- -- 112M 14 60 3.05
2.20 3.00 90L 10 16 2.15 100L 12 32 2.15 112M 12 32 1.5 132S 14 60 2.1
2.20 3.00 90L 12 32 4.3 100L 14 60 4 112M 14 60 2.81 132S 14 80 2.8
3.70 5.00 100L 12 32 2.58 112M 14 60 2.42 132S 14 60 1.68 132M 16 80 1.68
3.70 5.00 100L 14 60 4.8 112M 16 80 3.22 132S 16 80 2.24 132M 18 150 3.15
5.50 7.50 112M 12 32 1.74 132S 16 80 2.15 132M 16 80 1.5 160M 18 150 2.14
5.50 7.50 112M 14 60 3.26 -- -- -- -- -- -- -- -- -- -- -- --
7.50 10.00 132M 14 60 2.4 132M 16 80 1.6 160M 18 150 2.09 160L 18 150 1.57
9.30 12.50 132M 16 80 1.94 160M 18 150 2.43 160M 18 150 1.68 180M 20 240 2.02
9.30 12.50 132M 18 150 4.86 -- -- -- -- 160M 20 240 2.69 -- -- -- --
11.00 15.00 160M 16 80 2.24 160M 18 150 2.1 160L 20 240 2.25 180L 20 240 1.68
11.00 15.00 160M 18 150 4.2 160M 20 240 3.36 -- -- -- -- 180L 20 240 1.68
15.00 20.00 160L 16 80 1.6 160L 20 240 2.5 180L 20 240 1.68 -- -- -- --
15.00 20.00 160L 18 150 3 160L 25 360 3.74 180L 25 360 2.52 -- -- -- --

Supply :

Unless otherwise specified, brake voltages are 190 V D.C., with a rectifier of 415V A.C. dual phase input and 190V D.C. output, duly fitted in the terminal box of the motor. For quicker releasing action, 96 V D.C. brakes can be used with the same rectifier but with an input supply of 230V A.c. Brakes with 24V, 48V D.C. can be supplied but without rectifier. For these supply voltages of brake, inbuilt rectifier is not available, hence the brake has to energized and de-energized separately.

Switching :

Motors are connected with AC switching as standard. For faster action and reduction of the delay in operation, DC switching can be used. Care must be taken with DC switching as it generates heavy sparking, which can lead to shorting of switching contacts and ultimately leads to failure of contact braking. Suitable universal shock suppressors and capacitors can be used (notin the scope of "ELCEN")

Air-Gap Adjustment :
The braking torque and time is related to air gap between the rotor and stator. It is recommended to verify and it required to adjust the air-gap periodically for consistent performance. The brake is mounted on the end cover with three to six ellen bolts "L". Near the outer periphery ofthe brake, these ellen bolts "L" pass through Hollow hex bolts "H" which are in the opposite direction of the ellen bolts "L". There is an axially moving plate "M" between the armature and brake coil housing. The air gap between this moving plate "MOO and brake coil housing has to be maintained. It can be measured with a filler gauge or another suitable measuring system. To change the air gap, loosen all the ellen bolts "L" and unscrew all the hollow hex bolts "H" slightly to increase air gap and tighten them to reduce air gap. Tighten the ellen bolts "L" and measure the air gap near these bolts, and if required, adjust the air gap again to achieve specified air gap. The air gap is recommended in the table below.

Brake Size 6 8 10 12 14 16 18 20 25
Air - Gap 0.2 0.2 0.2 0.3 0.3 0.3 0.4 0.4 0.5

Options :

AC fail safe brakes and energized to brake (Normally off)
brakes in different operating voltage can be supplied subject
to confirmation. Rear side shaft extension for manual rotation
of motor can be supplied if required.

Length :

As brake is mounted on the rear side of the motor, length of motor increases.

 
 
News :
2009-03-17
Write us for annual rate contract of spare motors

2009-03-17
Incresed our stock for our prospective client

2009-03-17
Launch of a New Mounting Rail
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