Drum Brakes

 

ELECTRO-HYDRAULIC THRUSTER TYPES

A FAIL SAFE BRAKE WITH THE FOLLOWING STANDARD FEATURES AND OPTIONS:

The Torque is applied by compression and electrically released by a electro hydraulic thrustor.

The Thrustors are supplied with IP 65 enclosure as standard. Tropical and corrosion, explosion or flameproof versions are available. Voltage 380/525 V. Braking time is approximately 0,4 seconds. (Use D.C. type for quick braking). For delayed release or applying brake specify our S. value. Limit switches can be fitted.

The Frame is manufactured to DIN 15435. The torque is adjustable down to 20% of rated maximum torque. Brake linings are combined asbestos (friction = 0,4) as a standard, bonded to aluminum shoes. All pivot points are fitted with self lubricating phospha-bronze bushes. Pins are hot-dipped galvanised. (Grease holes are optional). Automatic lining wear compensator device is available if required. Painted primer and finished with industrial rust protection to spec. Plascon SL839/1A colour blue.

Type Brake torque Mass
  [Nm] d1 b1 b2 b3 d3 h2 h1 h3 i k l1 l2 s kg
= 0,4 = 0,35

VTB. 200/255
200/356

335
445
250
340
200

 

75

 

70

 

80

14

5

155

465
480
55

145

165
625
460
450
10

18

VTB. 250/255
250/356
250/506

335
445
850
310
430
710
250

 
95

 
90

 
100

 
18

 
5

 
185

 
600
570

65

 
180

 
205

 
560
540
580
10

 
24

 

VTB. 315/255
315/356
315/506
315/806

430
590
1100
1785
390
540
890
1430


315
 
 

 
118

 
 
110

 
 
120

 
 
18

 
 
5

 
 
225

 
 
665
630

 
80

 
 
220

 
 
250

 
580
590
600
600


12

 

 
50

 

VTB. 400/356
400/506
400/809
400/1306

560
1155
1805
2800
550
1100
1700
2750


400

 

 
150

 
 
140

 
 
150

 
 
22

 
 
10

 
 
270

 
 
770
700

 
100

 
 
270

 
 
305

 
650
720
710

 
14

 
 
75

 

VTB. 500/506
500/806
500/1306
500/2006

1420
2220
3425
5405
1400
2200
3500
5600


500

 

 
190

 
 
180

 
 
180

 
 
22

 
 
10

 
 
330

 
 
950

 
 
130

 
 
325

 
 
370

 
800
840

 
 
16

 
 
105

 

VTB. 630/1306
630/2006
630/3006

3430
5740
8520
3570
5700
9000
630 236 225 230 27 10 410 1100 170 400 460 930 20 200

VTB. 710/2006
710/3006

6530
9700
6460
10000
710 265 255 250 27 10 460 1220 190 450 510 1040 25 230