NYD type backstop

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NYD type backstop

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NYD type backstop is a contact type anti reverse device suitable for low speeds. It has the advantages of light weight, compact structure, reliable reverse check, easy release, convenient installation, and strong adaptability. It is the preferred safety protection device for lifting transportation equipment, generally suitable for lifting belt conveyors, bucket elevators, scraper conveyors, and other equipment with reverse requirements. 

Basic parameters and main dimensions of NYD type backstop (length unit: mm)
Model
Nominal torque Tn(Nm)
Aperture range d
Maximum speed of inner circle
Idle resistance torque (Nm)
Structure size
Maximum mass m(KG)
A
B
D
H
h
h1
L
L1
NYD65
1600
50~65
150
4
50
6
160
226
30
16
13.5
85
106
13.5
NYD75
2500
60~75
5
65
6
170
269
35
19
16.5
85
106
16.1
NYD85
6000
70~85
8
95
9
210
329
45
29
20.5
110
135
29.2
NYD95
8000
80~95
10
105
9
230
382
55
32
20.5
110
138
29.2
NYD110
11000
90~110
15
110
12
270
425
60
40
26
110
141
46.1
NYD130
16000
100~130
100
20
120
12
320
506
65
36
26
130
161
82.8
NYD160
25000
120~160
35
120
20
360
612
65
32
31
140
183
125
NYD200
38000
160~200
45
130
20
430
623
70
43
41
160
207
180
Model
Nominal torque Tn(Nm)
Aperture range d
Maximum speed of inner circle
Idle resistance torque (Nm)
Structure size
Maximum mass m(KG)
A
B
D
H
h
L
L1
NYD220
50000
160~220
80
75
238
259
500
820
80
230
303
351
NYD250
90000
180~250
50
95
288
323
600
1000
100
290
367
675
NYD270
125000
200~270
100
298
323
650
1100
110
290
367
737
NYD300
180000
230~300
110
356
335
780
1300
135
290
392
1123
NYD320
270000
250~350
140
386
345
850
1500
132
320
412
1425
NYD350
320000
250~350
160
414
360
930
1600
135
360
426
1956
NYD420
520000
320~420
220
474
484
1030
1800
165
450
550
2930
NYD450
700000
350~450
250
526
494
1090
2000
165
480
574
3380