Bend tester is a bending test device for bending tests on rubber, plastic and other insulated wires and cables. This machine is to make the sample pass through the threading hole of the turntable of the bending test device corresponding to its size, and then fix the two ends of the sample. The turntable is rotated continuously 200 times at a rate of 20 cycles per minute. Then check whether the sample is damaged or cracked, and at the same time check the number of broken wires of the conductor single wire at the fixing point and the threading point of each core.
Wewon’s Bend Tester is designed according to JIS C 3005, and the speed of the machine can be adjusted flexibly, for example, 20r.p.m. The box body is treated with electrostatic baking paint, and the whole machine is designed according to the standard, and the operation is stable and safe. The test distance is adjustable and multiple apertures are suitable for products with different wire diameters and different test requirements.
| Equipment Model | WEW-DWD-CRS-05 | WEW-DWD-FCW-5E |
| Equipment Structure | Bend Tester Design 1 | Bend Tester Design 1 |
| Test Specimen | Cabtire Construction Round Type φ1mm, φ10mm, φ15mm, φ20mm |
Flat Construction (Cord) |
| Total Count | 0 ~ 999999 Times | 0 ~ 999999 Times |
| Torsion Angle | N/A | 0° ~ 90°｜10° ~ 180° |
| Testing Speed | 3 ~ 20 Times/min | 5 ~ 20 Times/min |
| Rotation Plate | N/A | φ500, Thickness 10mm |
| Anti-swing Bar | N/A | Distance 40mm |
| Weight Unit | N/A | 100G, 300G, 500G (Fixed and Lifting Testing) |
| Threading Hole Diameter | 5, 10, 15, 20mm | N/A |
| Fixture Jig Distance | 0 ~ 500 mm | N/A |
| Counter Relay | Omron Japan | Omron Japan |
| Power Consumption | Max 750 W | Max 200 W |
| Power Voltage | AC220V 50Hz 1 Phase | AC220V 50Hz 1 Phase |
| Equipment Dimensions | W850*D600*H750mm | W850*D750*H1150mm |
| Equipment Weight | 55 KGS | 105 KGS |
| Accessories Parts: 1 Copy of Operating Manual, 1 Power Cord, 1 Set of Hexagons | ||
Wewon’s cable bend testing machine provide reliable, accurate results every time thanks to lab-grade measurement accuracy. With individual control over curvature angle and other factors, plus the ability to adjust for small-sized bends as well as large cables and wires, Wewon’s bend test machine provide results you can trust. In addition, a range of units available with AC or DC power allow you to purchase the best tester for your facility’s specific needs. According to JIS C 3005 test standard of 4.27 bending test, The bending shall be tested by one of the methods in 4.27.1 to 4.27.2 according to the construction. Cabtire construction shall be tested by one of the following methods according to the shape of sample.
| Take a sample of suitable length from the product, fix both ends through the sample passage hole on the rotor of the bend tester according to thethickness of sample, as shown in figure 19. | 4.27.1 Cabtire Construction → a) Round Type |
| Mount the sample so that it will havethe fixed distance (r) and the bending radius (l) given in A or B of table 10 according to the class of wire. | |
| Rotate the rotor 200 revolutions continuously at a rate ofapproximately 20 revolutions per minute. | |
| Examine the sample visually for break-age, flaws or cracks,and examine visually for the number of broken componentwires of each core at the fixed points and the passage hole. | |
| Suitable means shall be taken to prevent the twisting of passage. | |
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| Take a sample of suitable length from the product, bend it through 90° along the circular arc of a mandrel with a diameter of five times the minor axis of cable, return to the straight position, bend through 90° in the opposite direction, andreturn it to the straight position. | 4.27.1 Cabtire Construction → b) Flat Type |
| When this series of operations is carried out at a rate of 10 cycles per minute(six cycles per minute for the conductor nominal cross-section area over 38 mm2) continuously for 200 cycles. | |
| Then examine the sample visually for breakage, flaws or cracks and examine visually for the number of broken com-ponent wires of each core. | |
| Take a sample of suitable length from the product, bend it gradually through approximately 180° along a circular arc with a diameter of approximately 20 times the outside diameter of the lead sheath (for circular type) or the minor axis (for flat type), return to the straight position, and bend it in the opposite direction. | 4.27.2 Lead Sheath Construction |
| Repeat this series of opera-tions three times (six bends), and examine visually for cracks on the lead sheath. | |
| Take a sample of suitable length from the product,keep at (200±3)°C for 6 h, and hold in the ordinary temperature for 24 h or longer. | 4.27.3 Braiding Construction |
| Bend the sample through approximately 90° along the circular arc specified in individual standard, return to the original position, bend through approximately 90° in the opposite direction, and return it to the original position. | |
| Repeat this series of operations twice (four bends), and examine the braiding for the generation of cleavage or peeling of the coating. | |
| Flat construction shall be examined by the following method. a)Take a sample of suitable length from the product, fix one end to the fixing gadget of the tester shown in figure 20 through the space between two smooth metal cylinders with diameter 5 mm, and hang a weight of 150 g per mm3 of cross-section area of conductor (500 g, if less than 500 g) to the other end.Bend the sample by rotating right and left alternately, through approximately 180° each while passing a current equal to the allowable current (see Annex C) through the sample (take this operation as one cycle). | 4.27.4 Flat Construction (Cord) |
| The two cylinders and the fixing gadget of the bend tester are to be rotated as one unit. Carry out 100 cycles of this operation continuously at a rate of approximately 10 cycles per minute and examine visually for the number of broken component wires of each core. | |
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| b) Take a sample of suitable length from the product, keep at 100°C for 48 h, and test by the method specified in a) until one core is broken down. Examine the samplefor line-to-line short circuits,and for flaws,cracks and other irregularities on theinsulation. |
Bend testing for wires and cables with our bend testers not only helps you spot any immediate issues, it also allows you to monitor how well the product will stand up to long-term use. Knowing that your wires and cables can take all the day-to-day bends, twists, and pulls with minimal resistance is essential for ensuring your products remain in top condition. With Wewon’s bend testers, You can easily evaluate the consistency of insulation throughout various angles of bending to optimize strength and durability.
Wewon’s bend testers for rubber or plastic insulated wires and cables test can easily help you evaluate your product against multiple standards defined by organizations such as ASTM, IEC, CEI, EN, ISO and more. With valuable data on resistance and flexibility at various angles, you can ensure that the wires and cables meet international safety, durability and performance requirements.
Wewon’s bend testers for rubber or plastic insulated wires and cables test can easily help you evaluate your product against multiple standards defined by organizations such as ASTM, IEC, CEI, EN, ISO and more. With valuable data on resistance and flexibility at various angles, you can ensure that the wires and cables meet international safety, durability and performance requirements.