Oct 20, 2026
In a crushing production line, the ES403 serves a "sorting" function rather than a "crushing" one. As part of the Metso ES™ series of horizontal screens, it is responsible for precisely separating crushed material into specific product grades based on particle size. While its model designation might lead some to mistake it for a crusher, it is, in fact, a screening unit—typically positioned as the final quality control stage before the finished product leaves the site. The ES403 is a triple-deck horizontal screen with a deck size of 2,480 × 6,100 mm, providing a screening area of 14.6 m² (160 ft²). The unit has a total weight of approximately 16,500 kg and is driven by two modular exciters: an MV3 and an MV4.
Working Principle
The Metso ES403 is part of the ES series of high-energy, horizontal vibrating screens with elliptical motion. The side plates are equipped with Metso MV™ modular exciters, driven by two counter-rotating eccentric shafts that impart an elliptical motion to the screen deck.
Compared to conventional horizontal screens with linear motion, the elliptical vibration accelerates material stratification: fine particles settle and pass through the screen apertures, while larger particles are conveyed forward along the screen deck. The amplitude and frequency of the vibration can be adjusted to accommodate various operating conditions, including dry or wet materials, as well as sticky, prone-to-clogging materials.
Application Scenarios
The ES403 is primarily designed for use in quarries, gravel pits, mines, and mobile screening plants. It is commonly employed for the final sizing of products, dry screening of cohesive materials, processing of solid waste, as well as wet screening or washing operations. It is not intended for material crushing; rather, it ensures that the final products meet the required size specifications.
Component Composition
ES403 uses about 300 parts across six groups. First two are main wear parts; others impact service life and screening accuracy.
✅ Excitation System—Includes the exciter, bearings, shaft, counterweights, and unbalanced segment assembly; determines the elliptical motion and amplitude.
✅ Screening Surface System—Includes the screen media, screen frame, tensioning liners, and buffer bars; determines the product gradation and the service life of the screen media.
✅ Structural Fastening—Includes side plates, cross beams, HUCK bolts, and torque-controlled nuts; maintains the integrity of the weld-free machine body.
✅ Protection and Sealing—Includes dust seals, dust covers, and rubber skirting; protects the exciter and bearings.
ONA provides a long-term supply of screen deck supports, exciter components, impact bars, and structural fasteners for Metso ES series horizontal screens. Please feel free to contact us for assistance with parts selection or stock availability for the ES403 model and other equipment in the same series.
Below are some of the popular ONA part numbers related to the ES403.
Pos.
Part Number
Description
Model
1
ONA-N92304217
BODY ASSEMBLY
ES403
2
ONA-MM0398609
TRELLEX LSS
ES403
3
ONA-MM0398615
TRELLEX LSS
ES403
4
ONA-MM0398574
TRELLEX LSS
ES403
5
ONA-MM0398606
TRELLEX LSS
ES403
6
ONA-MM0400109
TRELLEX LSS
ES403
7
ONA-MM0393607
COLLAR, HUCK
ES403
8
ONA-MM0393409
COLLAR, HUCK
ES403
9
ONA-MM0393235
BOLT, HUCK
ES403
10
ONA-7001530422
SCREW, HEXAGONAL
ES403
11
ONA-N59400626
LIFTING HOOK
ES403
12
ONA-MM0393237
BOLT, HUCK
ES403
13
ONA-MM0393238
BOLT, HUCK
ES403
14
ONA-MM0393321
BOLT, HUCK
ES403
15
ONA-MM0393257
BOLT, HUCK
ES403
16
ONA-MM0393254
BOLT, HUCK
ES403
17
ONA-MM0393259
BOLT, HUCK
ES403
18
ONA-7001530318
SCREW, HEXAGONAL
ES403
19
ONA-7001633016
WASHER, LOCK
ES403
20
ONA-704203927160
NUT, HEXAGONAL, TORQUE
ES403
21
ONA-7001530312
SCREW, HEXAGONAL
ES403
22
ONA-7001530426
SCREW, HEXAGONAL
ES403
23
ONA-406300555200
WASHER, LOCK
ES403
24
ONA-7001570020
NUT, HEXAGONAL, TORQUE
ES403
25
ONA-7001530529
SCREW, HEXAGONAL
ES403
26
ONA-704203927240
NUT, HEXAGONAL, TORQUE
ES403
27
ONA-406300555250
WASHER, LOCK
ES403
28
ONA-N14957500
AXLE
ES403
29
ONA-N24003582
FLANGE
ES403
30
ONA-N34100993
SUPPORT
ES403
31
ONA-N34100987
SPRING SUPPORT
ES403
32
ONA-7001530513
SCREW, HEXAGONAL
ES403
33
ONA-N01530442
BOLT, HEXAGONAL
ES403
34
ONA-N92430918
DUST SEAL
ES403
35
ONA-MM0393253
BOLT, HUCK
ES403
36
ONA-N23223197
FEED BOX
ES403
37
ONA-MM0364394
PLATE, STEEL
ES403
38
ONA-N44107917
SIDE PLATE
ES403
39
ONA-N34101064
SPRING BRACKET
ES403
40
ONA-N34101068
SPRING BRACKET
ES403
41
ONA-N34101066
SPRING BRACKET
ES403
42
ONA-N34101070
SPRING BRACKET
ES403
43
ONA-N83901814
REINFORCEMENT PLATE
ES403
44
ONA-N83901815
REINFORCEMENT PLATE
ES403
45
ONA-701001643000
PLATE, STEEL
ES403
46
ONA-N85404560
CROSS BEAM
ES403
47
ONA-7000184155
TUBE
ES403
48
ONA-N85404561
CROSS BEAM
ES403
49
ONA-7000184106
TUBE
ES403
50
ONA-7000163509
PLATE, STEEL
ES403
51
ONA-N70600406
STIFFENER
ES403
52
ONA-N70600408
STIFFENER
ES403
53
ONA-7000122035
ANGLE, EQUAL
ES403
54
ONA-N92283212
SUSPENSION ASSEMBLY
ES403
55
ONA-N92280108
DAMPER ASSEMBLY
ES403
56
ONA-N80505109
SUPPORT
ES403
57
ONA-7080440000
SUPPORT, RUBBER
ES403
58
ONA-N01633017
WASHER, LOCK
ES403
59
ONA-N01530192
SCREW, HEXAGONAL
ES403
60
ONA-N01633013
WASHER, LOCK
ES403
61
ONA-7001530200
SCREW, HEXAGONAL
ES403
62
ONA-704203927120
NUT, HEXAGONAL, TORQUE
ES403
63
ONA-7000163508
PLATE, STEEL
ES403
64
ONA-7000171013
PLATE, STEEL
ES403
65
ONA-701001510000
PLATE, STEEL
ES403
66
ONA-MM0399278
TUBE
ES403
67
ONA-7000169504
PLATE, STEEL
ES403
68
ONA-7000169502
PLATE, STEEL
ES403
69
ONA-MM0399279
TUBE
ES403
70
ONA-7000169506
PLATE, STEEL
ES403
71
ONA-MM0366393
TUBE, ROUND
ES403
72
ONA-MM0364825
PLATE, STEEL
ES403
73
ONA-MM0373498
SEALANT
ES403
74
ONA-N92251071
MECHANISM ASSEMBLY
ES403
75
ONA-N92251129
VIBRATOR
ES403
76
ONA-N92251652
INTERNAL HOUSING ASSEMBLY
ES403
77
ONA-7092251502
SUPPORT ASSEMBLY
ES403
78
ONA-N92251654
INTERNAL HOUSING ASSEMBLY
ES403
79
ONA-N92251126
VIBRATOR
ES403
80
ONA-7001606452
KEY, PARALLEL, COMBINED
ES403
81
ONA-7013030611
SHAFT
ES403
82
ONA-MM0408525
BEARING, ROLLER, SPHERICAL
ES403
83
ONA-7008010001
GLUE
ES403
84
ONA-7013030614
BAR, ROUND
ES403
85
ONA-N00125130
BAR, ROUND
ES403
86
ONA-N23302555
BEARING HOUSING
ES403
87
ONA-7023302554-099
CASTING
ES403
88
ONA-7000859014
CAST IRON
ES403
89
ONA-7023302554-00P
PATTERN
ES403
90
ONA-N42002513
SPACER
ES403
91
ONA-N42002513-099
SPACER CASTING
ES403
92
ONA-7000450011
ALUMINUM
ES403
93
ONA-7036010505
COVER
ES403
94
ONA-7036010505-099
COVER CASTING
ES403
95
ONA-7036010505-01P
PATTERN
ES403
96
ONA-7042002007
LABYRINTH
ES403
97
ONA-7042002007-099
CASTING
ES403
98
ONA-7042002007-00P
PATTERN
ES403
99
ONA-7042002009
LOCK RING
ES403
100
ONA-7016200506
COUNTERWEIGHT
ES403
101
ONA-7016200509
COUNTERWEIGHT
ES403
102
ONA-7016200506-099
COUNTERWEIGHT CASTING
ES403
103
ONA-7016200506-00P
PATTERN
ES403
104
ONA-7092251501
SUPPORT ASSEMBLY
ES403
105
ONA-7028000659
COVER
ES403
106
ONA-7035900102
COVER
ES403
107
ONA-704103640000
SCREW, CAP, HEXAGON SOCKET HEAD
ES403
108
ONA-7001530198
SCREW, HEXAGONAL
ES403
109
ONA-406300555100
WASHER, LOCK
ES403
110
ONA-7001530310
SCREW, HEXAGONAL
ES403
111
ONA-7080509300-099
CASTING
ES403
112
ONA-7000840848
CAST IRON
ES403
113
ONA-7080509300-00P
PATTERN
ES403
114
ONA-7028000659-099
CASTING
ES403
115
ONA-7000450007
ALUMINUM
ES403
116
ONA-7028000659-01P
PATTERN
ES403
117
ONA-7035900102-099
COVER CASTING
ES403
118
ONA-7035900102-00P
PATTERN
ES403
119
ONA-N28000875
INTERNAL HOUSING
ES403
120
ONA-SC700618
SCREW, CAP, HEXAGON SOCKET HEAD
ES403
121
ONA-7080509300
SUPPORT
ES403
All names, marks, models, symbols and descriptions are used for reference purposes only and it is not impied that any of the parts/brands listed are the product of any company other than ONA. We are not agents or distributors for any of the above mentioned brands nor do we have any commercial relationship or association with them.
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