Accessories for Servo-Hydraulic Testing Machines

The final element in our dynamic testing product portfolio is the manufacture of all the necessary accessories. The portfolio is constantly being expanded through a program of continuous development and the inclusion of new products, allowing us to satisfy our customers' most demanding quality requirements while continually improving the quality of our products.
电液伺服疲劳试验机附件

Hydraulic Grips for Servo-Hydraulic Testing Machines

适用于电液伺服疲劳试验机的液压楔形夹具

适用于电液伺服疲劳试验机的BOW夹具

适用于电液伺服疲劳试验机的“BOW”楔形液压夹具提供高水平的操作便利性。

当使用电液伺服疲劳试验机时,这些试验机与现场压力油源连接。对于静态试验机,需要一台小型液压源。

针对电液伺服试验机的液压试样夹具的特点:

  • 适用于静态拉伸和压缩试验,以及在脉动载荷和交变载荷下的疲劳试验。
  • 可选用叠加的扭转载荷
  • 额定试验力25, 100, 250和500kN
  • 可在平板试样和圆棒试样之间更换适用于不同尺寸的夹面。
  • 辐射状夹面导向放置不希望的作用于试样的轴向应力
  • 侧面打开的设计让试样可简单地上样
  • 对于木头和塑料这样的“软”试样可调整夹持压力

技术参数,Fmax 25 kN

楔形夹具

动态额定试验力

±25

±25

kN

转矩

±250

±250

Nm

温度范围

+4 至 +35

-70 至 +250

°C

设计压力

210

210

bar

最大试样尺寸

16

mm

最大试样厚度

14

14

mm

安装高

166

mm

试样夹具直径

110

110

mm

一件夹具重量

8

10

kg

连接尺寸

Ø70; 6 x M8

Ø70; 6 x M8

订货号

1002919

1002920

  • 试样夹具包含2个夹持头
  • 夹面和夹具控制单元需要另购

技术参数,Fmax 100 kN

楔形夹具

动态额定试验力

±100

±100

kN

最大转矩,(Mmax)

-

Nm

设计压力

210

210

bar

最大试样直径

24

24

mm

最大试样厚度

26.5

26.5

26.5

安装高度

232

[1]

mm

试样夹具直径

200

200

mm

包括夹面的每一件夹具重量,约

34.5

kg

连接尺寸

Ø105, 6 x M10

Ø 105; 6 x M10

温度范围

+4 至 +35

-70 至 +250

°C

订货号

088933

088935

  1. 按需高度依照所订购的环境试验箱
  • 试样夹具包含2个夹具头
  • 夹面和夹具控制单元需要另购

技术参数,Fmax 250 kN

楔形夹具

GR0250.50.07

GR0250.50.08

动态额定试验力

±250

±250

kN

转矩

-

-

Nm

温度范围

+4 至 +35

-70 至 +250

°C

设计压力

210

210

bar

最大试样直径

30

30

mm

最大试样厚度

30

30

mm

安装高度

325

mm

试样夹具直径

280

280

mm

一件试样夹具重量

90

190

kg

连接尺寸

Ø165; 12 x M16

Ø165; 12 x M16

订货号

088934

088936

  • 试样夹具包含2个夹具头
  • 夹面和夹具控制单元需要另购

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Servo Valves

Servo valves are used in closed control loops for high-accuracy control of hydraulic energy, with multi-kilowatt hydraulic power controlled by input signals in the milliwatt range. Extremely severe demands are placed on servo valves used in materials and component testing. They must respond to a wide range of set-value signals with equal precision at extremely high or very low test speeds, with short or long travel. 

Advantages and features of ZwickRoell servo valves

The correct choice of servo valve is determined by the size of the servo-hydraulic testing actuator (nominal capacity) and the required operating point (defined by force, travel and frequency). ZwickRoell uses a suitable computer program to determine the performance characteristics of a given single testing actuator-servo valve combination.

  • 2-stage servo valves available with a nominal flow-rate of 4 l/min to 230 l/min.
  • Servo valves can be used in systems operating at 210 or 280 bar.
  • High response valves available for particularly high dynamic ranges.
  • Servo valves available as 4 or 5-port valves for separate pilot pressure connection
  • Standard connection port pattern to ISO 10372-04 for valves up to 75 l/min.

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