Head Expander

Introduction

  • Square Head Expander
  • Round Head Expander
  • Installation Examples

1. The head expander supplied by our company has various types, and it can be specially customized to meet the requirements of customers for expanding the vibration shaker.

2. In actual vibration test, specimen or fixture is commonly larger than the electro-dynamic shaker armature table. As a result, the original table needs to be extended by installing an auxiliary table.

3. The extended table has stringent requirements for the working frequency, table weight, table acceleration, amplitude uniformity, and the lateral movement, etc.

4. The VT series product undergoes finite element modal analysis. Its quality is guaranteed with superior structure, materials, and workmanship.

Advantages
1. All shake system expanders supplied by DONGLING have passed the finite element analysis. Their structure has been optimized.
2. High-quality workmanship guarantees stable performance and reliable technical indicators.
3. The standard-series head expander is optional. Its shape can be round or square. Its raw material can be aluminum or magnesium.

Models

Technical Parameters

1. Square Type

Table Diameter Model -150 -200 -230
-240
-320 -370 -445/480 -550 -590
VT0303 7
2000
8
2000
10
2000
      Effective Mass (kg)
Upper Limit Frequency (Hz)
VT0404 12
2000
13
2000
21
2000
         
VT0505 20
2000
23
2000
32
2000
32
2000
33
2000
     
VT0606 29
1200
37
1500
38
1500
40
2000
40
2000
53
2000
   
VT0707     43
1000
60
2000
80
2000
80
2000
   
VT0808     60
1000
70
1200
80
1300
85
1300
125
1800
135
1800
VT0909     80
7 00
95
1000
95
1000
100
1000
120
1000
120
1000
VT1010     73
400
100
600
110
800
185
1000
200
1000
210
12 00
VT1111           230
500
245
700
160
700
VT1212 Effective Mass (kg)
Upper Limit Frequency (Hz)
      250
400
265
500
280
500
VT1515           350
400
400
400
420
400
VT2020             900
300
1000
300

2. Round Type

Table Diameter Model -150 -200 -230
-240
-320 -370 -445/480 -550 -590
VT300 7
2000
8
2000
        Effective Mass (kg)
Upper Limit Frequency (Hz)
VT400 10
2000
12
2000
14
2000
16
2000
       
VT500 20
2000
21
2000
23
2000
30
2000
32
2000
     
VT600   20
1000
30
1 800
33
1800
38
1800
38
2000
   
VT700     33
800
58
1500
69
2000
70
2000
   
VT800       60
800
70
1200
72
1500
   
VT900         85
1200
100
1200
   
VT1000           140
1000
150
1100
160
1100
VT1100           200
800
210
900
230
1000
VT1200 Effective Mass (kg)
Upper Limit Frequency (Hz)
      250
500
260
600
270
600
VT1500           330
400
350
400
400
400

Remark
1. The above-mentioned effective mass and usable frequency range indicate the specification of aluminum head expander. For magnesium type, the effective mass will be reduced to 65%, and the usable frequency will be reduced to 90% of the same model of aluminum type.

2. VT0303 is referred to a square head expander with its table size of 300×300mm. VT300 represents a round type product with its table diameter of 300mm.

3. Standard Hole
1) VT0303 (VT300)~VT0505 (VT500): 50×50mm square hole
2) VT0606 (VT600)~VT1212 (VT1200) and above: 100×100mm square hole

Inquiry Form