MEWK Drum Brakes

Electro-hydraulic Thrustor Operated Drum Brakes

Sizes

160mm - 720mm

Torques

185 Nm - 7300 Nm

Features

Witton Kramer MEWK Brakes have their torque spring(s) protected from the environment in an enclosed steel tube, which is fitted with a torque indicator, the MEWK brakes can also be fitted with a manual release lever.

They operate with special versions of the Witton Kramer HD thrustor which are interchangeable with other European thrustors if required - these can be fitted without modifying the brake.

The MEWK Brakes can also be fitted with Witton Kramer KT Industrial thrustors and TKF Flameproof thrustors.

The brakes are A.C. operated from supplies up to 660 Volts, 50 / 60 Hz and are designed for demanding applications such as on heavy duty cranes, conveyors and process lines.

The brakes comply with the British standard, BS 466 and with the requirements of the German standard DIN 15435 in respect of drum diameter and width, shoe clearance, fixing centres and centre height, and fixing bolt holes.

Specifications

Brake Thrustor Max Dimensions in mm
diameter size torque                        
d1 HD Nm a1 a2 a3 a4 b1 b2 c d3 f h1 h2 h3
160 25/5 185 640 370 180 220 75 70 8 14 125 155 5 520
200 25/5 230 640 370 180 220 75 70 8 14 125 155 5 520
200 75/5 290 680 370 180 220 75 70 8 14 125 155 5 610
250 25/5 300 720 415 215 215 95 90 8 18 142 185 5 525
250 75/5 450 760 415 215 215 95 90 8 18 142 185 5 610
315 25/5 400 830 480 260 215 118 110 10 18 172 225 5 590
315 75/5 1050 870 480 260 260 118 110 10 18 172 225 5 610
315 125/6 1600 870 480 260 260 118 110 10 18 172 225 5 810
400 75/5 1250 1020 590 300 305 150 140 10 22 207 270 10 725
400 125/6 2200 1020 590 300 305 150 140 10 22 207 270 10 820
500 125/6 2500 1190 690 390 390 190 180 12 22 270 330 10 875
500 200/6 3900 1190 690 390 390 190 180 12 22 270 330 10 875
500 200/12 4500 1250 750 390 390 190 180 12 22 270 330 10 930
630 200/12 6500 1580 1000 470 470 236 225 12 27 330 410 10 1080
710 200/12 7300 1690 1070 510 510 265 255 15 27 365 460 10 1120

Brake Thrustor Dimensions in mm Thrustor
dia size                     mass
d1 HD i j k l1 l2 m n1 n2 s VA kg
160 25/5 55 100 145 75 100 30 100 160 1.00 125 45
200 25/5 55 100 145 75 100 30 100 160 1.00 125 45
200 75/5 55 100 145 75 100 30 100 195 1.00 250 55
250 25/5 65 100 180 110 100 35 100 160 1.25 125 60
250 75/5 65 100 180 110 100 35 100 195 1.25 250 70
315 25/5 80 150 220 147 100 40 130 195 1.25 250 85
315 75/5 80 150 220 147 100 40 130 195 1.25 250 90
315 125/6 80 150 220 147 100 40 130 240 1.25 750 120
400 75/5 100 150 270 190 100 35 150 195 1.60 250 140
400 125/6 100 150 270 190 100 35 150 240 1.60 750 160
500 125/6 130 150 325 250 130 40 200 240 1.60 750 275
500 200/6 130 150 325 250 130 40 200 240 1.60 750 275
500 200/12 130 200 325 250 130 40 200 240 1.60 750 290
630 200/12 170 200 400 315 150 45 250 240 2.00 750 370
710 200/12 190 200 450 300 205 45 300 240 2.00 750 550
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