DXWD-130 Water-cooled Bench Electromagnet: Quality Inspection Report

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DXWD-130 Water-cooled Bench Electromagnet P1 DXWD-130 Water-cooled Bench Electromagnet P2 DXWD-130 Water-cooled Bench Electromagnet P3

 

DXWD-130 Water-cooled Bench Electromagnet P4 Manual Rotary Stage of DXWD-130 Water-cooled Bench Electromagnet Pole head of DXWD-130 Water-cooled Bench Electromagnet

 

1. Mechanical Dimensions
Overall dimensions:
Length * Width * Height
1030 mm * 450 mm * 650 mm

 

2. Packing List

Item

 Specifications Quantity
Water-cooled Electromagnet DXWD-130 1 unit
Power Connection Cable

-

 2 cables
Electromagnet Pole head 95 mm, 40 mm 2 pairs
Probe Holder 120 mm 2 units
Manual Rotary Stage - 1 unit
PT100 Cable - 1 cable
Grounding Wire - 1 wire
High-pressure Water Hose - 2 hoses
Certificate of Conformity - 1 copy
Test Report

-

 1 copy

 

3. Packaging Type
Wooden packaging box

 

4. Packaging Filler
Foam board

 

5. Labeling

Product Nameplate

 

6. Total Equipment Weight
474 kg

 

 

 

Performance test report
 Introduction
    1. Test purpose
Through the analysis of the test results, the evaluation of the product performance is obtained;
Evaluate whether the test product meets the technical requirements;
Provide reference data for product design and after-sales service, and provide a strong basis for leaving the factory.
    2. Basic information
 Product Name:
Water-cooled bench electromagnet		 Product model: DXWD-130
Test time: March 13, 2026
    3. Testing environment
The detection environment is closer to the actual environmental conditions used by the user, including factors such as lead wire length and ambient temperature. The time is selected in the time interval where the fluctuation of the geomagnetic field is small. Before the test, the instruments required for the test were turned on and warmed up in advance and the measurement environment was recorded, as shown in Table 1.
Measurement environment
Environment
temperature		 Product initial
temperature		 Lead length Environmental
magnetic field
12.0℃ 12.0℃ - 0~30000nT
Table 1 Measurement environment data
　
Magnetic field parameter test
    1. Using the device
DX-F2031 power supply
DX-180 Gauss Meter
DXACP Power Amplifier
    2. Magnetic field measurement
This product uses the following measurement methods:
Fixed-point measurement: measure the magnetic field at the target point

 

Magnetic field strength
No. Display current (A) Display voltage (V) Magnetic field
strength（Gs）

ф95mm Pole head

10mmGap

 10 22.89 17873.2
20 45.98 21628.7
30 69.11 22451.0
40 92.53 22876.5
50 116.20 23198.3

ф95mm Pole head

30mmGap

 10 - 6782.4
20 - 11985.4
30 - 13967.1
40 - 15069.2
50 - 15800.8

ф40mm Pole head

10mmGap

 10 - 19642.4
20 - 25335.7
30 - 26943.7
40 - 27806.2
50 - 28380.4

ф40mm Pole head

30mmGap

 10 - 6730.7
20 - 13152.8
30 - 16703.1
40 - 18094.2
50 - 18908.3

ф15mm Pole head

10mmGap

 10 - 18644.7
20 - 25133.9
30 - 27455.6
40 - 28600.4
50 - 29295.0

ф15mm Pole head

30mmGap

 10 - 5822.5
20 - 11326.0
30 - 14296.3
40 - 15684.2
50 - 16556.2

 

The magnetic field strength curves of the electromagnet under different pole surfaces, air gaps, and currents

 

Superimposed magnetic field: φ15 mm pole tips, 30 mm gap, electromagnet current 10 A, coil current 3 A.

Superimposed magnetic field: φ15 mm pole tips, 30 mm gap, electromagnet current 10 A, coil current 3 Ap.

 

Superimposed magnetic field: φ15 mm pole tips, 30 mm gap, electromagnet current 30 A, coil current 3 A.

Superimposed magnetic field: φ15 mm pole tips, 30 mm gap, electromagnet current 30 A, coil current 3 Ap.

 

Superimposed magnetic field: φ15 mm pole tips, 30 mm gap, electromagnet current 50 A, coil current 3 A.

Superimposed magnetic field: φ15 mm pole tips, 30 mm gap, electromagnet current 50 A, coil current 3 Ap.

 

Magnetic Field Strength of Superimposed Coils (150 Hz)
No. Electromagnet Current Displayed Current (Ap) Displayed Voltage (Vp) Magnetic Field Strength

ф15mm Pole head

30mmGap

 10A 3 4.40 5820Gs-5809Gs
30A 3 4.40 14497Gs-14489Gs
50A 3 4.40 16784Gs-16778Gs
Table 2 Magnetic field strength data

 

Electrical parameter test
    1. Using equipment
Digital multimeter
Impedance analyzer
    2. Test method
The digital instrument with bridge circuit and voltammetry is used for measurement. The measurement results are shown in the table below.
Resistance R measurement
No. Product temperature Measuring resistance ResistanceR@20℃ ResistanceR@85℃
Electromagnet 12.0℃ 2.282Ω 2.369Ω 3.078Ω
Detection Coil 12.0℃ 1.111Ω 1.153Ω 1.498Ω
Table 3 Resistance R data

 

Superimposed Coil, Inductance Ls, reactance Z measurement (test level 5V)
Ls MIN[H] FREQ[Hz] Ls MAX[H] FREQ[Hz]
 866.346u  1.00000k  1.33527m 20
Z  MIN[Ω] FREQ[Hz] Z  MAX[Ω] FREQ[Hz]
1.21269 20 5.68159  1.00000k
Table 4 Superimposed Coil, inductance Ls and reactance Z data
　
Inductance Ls, reactance Z-scan measurement
POINTS FREQ[Hz] Ls Z  POINTS FREQ[Hz] Ls Z 
1 20  1.33527m 1.21269 102 514.9  897.320u 3.2545
2 24.9  1.28352m 1.22698 103 519.8  896.793u 3.27844
3 29.8  1.23788m 1.24084 104 524.7  896.281u 3.30241
4 34.7  1.19860m 1.25439 105 529.6  895.816u 3.32658
5 39.6  1.16491m 1.2676 106 534.5  895.327u 3.3506
6 44.5  1.14278m 1.2799 107 539.4  894.848u 3.37473
7 49.4  1.12394m 1.29197 108 544.3  894.375u 3.39884
8 54.3  1.10527m 1.30531 109 549.2  893.907u 3.42295
9 59.2  1.08924m 1.31918 110 554.1  893.465u 3.44716
10 64.1  1.07539m 1.33206 111 559  892.991u 3.47126
11 69  1.06319m 1.34525 112 563.9  892.549u 3.49544
12 73.9  1.05259m 1.35858 113 568.8  892.094u 3.51961
13 78.8  1.04332m 1.37242 114 573.7  891.657u 3.54379
14 83.7  1.03498m 1.38619 115 578.6  891.232u 3.56806
15 88.6  1.02739m 1.40017 116 583.5  890.804u 3.59231
16 93.5  1.02064m 1.41443 117 588.4  890.377u 3.61652
17 98.4  1.01455m 1.42909 118 593.3  889.968u 3.64083
18 103.3  1.00892m 1.44397 119 598.2  889.556u 3.66507
19 108.2  1.00382m 1.4592 120 603.1  889.155u 3.68941
20 113.1  999.243u 1.47472 121 608  888.734u 3.71363
21 118  994.912u 1.49053 122 612.9  888.333u 3.73795
22 122.9  991.278u 1.50675 123 617.8  887.929u 3.7622
23 127.8  988.076u 1.52336 124 622.7  887.535u 3.78655
24 132.7  985.220u 1.5404 125 627.6  887.129u 3.81081
25 137.6  982.438u 1.55761 126 632.5  886.755u 3.83521
26 142.5  979.869u 1.57516 127 637.4  886.363u 3.85953
27 147.4  977.435u 1.59303 128 642.3  885.993u 3.88392
28 152.3  974.915u 1.61073 129 647.2  885.605u 3.90826
29 157.2  972.159u 1.62856 130 652.1  885.260u 3.9327
30 162.1  969.569u 1.64677 131 657  884.897u 3.9571
31 167  967.041u 1.66508 132 661.9  884.517u 3.98143
32 171.9  964.659u 1.68361 133 666.8  884.176u 4.00592
33 176.8  962.414u 1.70239 134 671.7  883.822u 4.03034
34 181.7  960.307u 1.72132 135 676.6  883.460u 4.05473
35 186.6  958.195u 1.74047 136 681.5  883.115u 4.07915
36 191.5  956.213u 1.75988 137 686.4  882.773u 4.10362
37 196.4  954.299u 1.77939 138 691.3  882.433u 4.12809
38 201.3  952.512u 1.79911 139 696.2  882.096u 4.15252
39 206.2  950.861u 1.81917 140 701.1  881.759u 4.177
40 211.1  949.282u 1.83933 141 706  881.435u 4.2015
41 216  947.693u 1.85961 142 710.9  881.108u 4.22601
42 220.9  946.271u 1.88011 143 715.8  880.781u 4.25045
43 225.8  944.756u 1.90065 144 720.7  880.471u 4.27503
44 230.7  943.392u 1.92145 145 725.6  880.142u 4.29948
45 235.6  942.024u 1.94237 146 730.5  879.853u 4.32408
46 240.5  940.603u 1.96332 147 735.4  879.538u 4.34863
47 245.4  939.372u 1.9846 148 740.3  879.225u 4.37312
48 250.3  938.094u 2.00565 149 745.2  878.895u 4.39758
49 255.2  937.014u 2.02733 150 750.1  878.601u 4.42215
50 260.1  935.837u 2.04891 151 755  878.306u 4.44673
51 265  934.847u 2.07074 152 759.9  878.020u 4.47132
52 269.9  933.841u 2.09273 153 764.8  877.709u 4.49584
53 274.8  932.776u 2.11462 154 769.7  877.430u 4.52047
54 279.7  931.820u 2.13676 155 774.6  877.145u 4.54506
55 284.6  930.787u 2.15884 156 779.5  876.863u 4.56968
56 289.5  929.827u 2.18105 157 784.4  876.568u 4.59418
57 294.4  928.937u 2.20342 158 789.3  876.306u 4.61889
58 299.3  928.007u 2.22587 159 794.2  876.018u 4.64346
59 304.2  927.062u 2.24829 160 799.1  875.757u 4.66813
60 309.1  926.081u 2.27071 161 804  875.485u 4.69274
61 314  925.231u 2.29331 162 808.9  875.221u 4.71739
62 318.9  924.271u 2.31586 163 813.8  874.951u 4.74201
63 323.8  923.384u 2.33853 164 818.7  874.677u 4.76658
64 328.7  922.498u 2.36123 165 823.6  874.423u 4.79129
65 333.6  921.621u 2.384 166 828.5  874.162u 4.81593
66 338.5  920.800u 2.40687 167 833.4  873.913u 4.84061
67 343.4  919.985u 2.42977 168 838.3  873.654u 4.86527
68 348.3  919.137u 2.45265 169 843.2  873.407u 4.88994
69 353.2  918.344u 2.47573 170 848.1  873.160u 4.91465
70 358.1  917.530u 2.49873 171 853  872.922u 4.93938
71 363  916.769u 2.52188 172 857.9  872.660u 4.96397
72 367.9  916.009u 2.54501 173 862.8  872.404u 4.9886
73 372.8  915.237u 2.56819 174 867.7  872.175u 5.01335
74 377.7  914.479u 2.59134 175 872.6  871.937u 5.03807
75 382.6  913.756u 2.61465 176 877.5  871.712u 5.06282
76 387.5  913.048u 2.63799 177 882.4  871.466u 5.08749
77 392.4  912.312u 2.66127 178 887.3  871.235u 5.11221
78 397.3  911.595u 2.68468 179 892.2  870.990u 5.13686
79 402.2  910.927u 2.70813 180 897.1  870.766u 5.16158
80 407.1  910.245u 2.73159 181 902  870.553u 5.18641
81 412  909.558u 2.75504 182 906.9  870.318u 5.21109
82 416.9  908.859u 2.77849 183 911.8  870.103u 5.23586
83 421.8  908.236u 2.80212 184 916.7  869.880u 5.2606
84 426.7  907.581u 2.8257 185 921.6  869.640u 5.28524
85 431.6  906.963u 2.84936 186 926.5  869.431u 5.31002
86 436.5  906.322u 2.87295 187 931.4  869.218u 5.33481
87 441.4  905.724u 2.89667 188 936.3  869.001u 5.35955
88 446.3  905.067u 2.92024 189 941.2  868.782u 5.38425
89 451.2  904.485u 2.94402 190 946.1  868.572u 5.40903
90 456.1  903.884u 2.96774 191 951  868.357u 5.43375
91 461  903.324u 2.99164 192 955.9  868.153u 5.45855
92 465.9  902.691u 3.01528 193 960.8  867.945u 5.48334
93 470.8  902.131u 3.03912 194 965.7  867.746u 5.50814
94 475.7  901.581u 3.06298 195 970.6  867.540u 5.53289
95 480.6  901.010u 3.08682 196 975.5  867.332u 5.55766
96 485.5  900.496u 3.11081 197 980.4  867.143u 5.58249
97 490.4  899.915u 3.1346 198 985.3  866.930u 5.60721
98 495.3  899.372u 3.15852 199 990.2  866.730u 5.63197
99 500.2  898.837u 3.18244 200 995.1  866.523u 5.65669
100 505.1  898.311u 3.20638 201  1.00000k  866.346u 5.68159
101 510  897.819u 3.23045 　 　 　 　
Table 5 Detailed frequency data of inductance Ls and reactance Z

 

Temperature Rise Test
 Test Methods
The following measurement methods are employed for this product:
Magnetic field temperature rise measurement: Determines the maximum operating time and peak temperature at the target magnetic field current required for user operation.
Maximum current temperature rise measurement: Determines the maximum operating time and peak temperature at the maximum safe current the product can withstand.
Data regarding temperature, time, and current for the coil assembly is measured. The results are presented in the table below.
Temperature Rise Test
Test Current [A] Operating Time [min] Voltage [V] Product Temperature [°C]
50 0 116.95 14.1
1 119.42 20.6
2 121.98 27.3
3 124.7 32.7
4 127.18 38.7
5 129.53 44.3
6 131.73 49.8
7 133.85 55
8 135.95 59.9
9 137.94 65.1
10 139.83 69.8
11 141.64 74.7
12 143.42 79.2
Note Ambient Temperature: 12°C; Chiller Cooling Capacity: 8 kW
Table 6: Data on the relationship between temperature, operating time, and current
 
Conclusion
The magnetic field and electrical performance of the product meet the requirements of the corresponding technical parameters. The final performance of the product is subject to this document.

 

Customization is available, please let us know your requirements, and we will design a professional plan for you. Thank you!

Dexinmag® • 2026

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