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 |
335 445 |
250 340 |
200
|
75
|
70
|
80 | 14 | 5 | 155 | 465 480 |
55 | 145 | 165 625 |
460 450 |
10 | 18 |
VTB. 250/255 |
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 |
430 590 1100 1785 |
390 540 890 1430 |
|
118 |
110 |
120 |
18 |
5 |
225 |
665 630 |
80 |
220 |
250 |
580 590 600 600 |
|
50 |
VTB. 400/356 |
560 1155 1805 2800 |
550 1100 1700 2750 |
|
150 |
140 |
150 |
22 |
10 |
270 |
770 700 |
100 |
270 |
305 |
650 720 710 |
14 |
75 |
VTB. 500/506 |
1420 2220 3425 5405 |
1400 2200 3500 5600 |
|
190 |
180 |
180 |
22 |
10 |
330 |
950 |
130 |
325 |
370 |
800 840 |
16 |
105 |
VTB. 630/1306 |
3430 5740 8520 |
3570 5700 9000 |
630 | 236 | 225 | 230 | 27 | 10 | 410 | 1100 | 170 | 400 | 460 | 930 | 20 | 200 |
VTB. 710/2006 |
6530 9700 |
6460 10000 |
710 | 265 | 255 | 250 | 27 | 10 | 460 | 1220 | 190 | 450 | 510 | 1040 | 25 | 230 |