Ref: K6D225

Force transducer 6 components 50 kN / 10 kNm to 200 kN / 20 kNm - redundant measurement

6-component force/torque transducer of F6D/K6D series
Measuring ranges: 50kN/10kNm 100 kN/15kNm 200kN/20kNm
Calibration: tension/compression
Accuracy class: 0.5%;
Output signal: 0.1 mV/V
Dimensions: Ø225 mm x 140 mm;
Mounting and Centering: 12 x M20x1.2 threads + 2 x Ø12 mm E7 holes
Connection: 2 UP13 connectors
IP65 stainless steel construction
Weight: kg
Calibration certificate and 6x6 inter-port matrix included

High capacity 6-component sensor with redundant measurement

The 6-component K6D225 strain gauge force transducer simultaneously measures the forces Fx, Fy, Fz and torques Mx, My, Mz on three perpendicular axes. The forces are measured directly at the contact surface, allowing maximum rigidity and reduced space requirements.

The measurement on each axis is carried out by means of a redundant strain gage bridge, allowing:

either to improve the accuracy by combining the two measurements, and using the 6x12 inter-channel matrix provided for this purpose. The overall accuracy is increased from 0.5% to 0.2%.
or to have a redundant measurement chain for critical systems (double measurement, double conditioner, etc...)

The K6D225 sensor is available in 3 measuring ranges :

Model	K6D225 (50kN/10kNm)	K6D225 (100kN/15kNm)	K6D225 (200kN/20kNm)
Fx, Fy [kN]	50	100	200
Fz [kN]	100	250	500
Mx, My, Mz [Nm]	10000	15000	20000
Connectivity	Connector : 2 x UP13	Connector : 2 x UP13	Connector : 2 x UP13
Material	Stainless steel	Stainless steel	Stainless steel

Each sensor is delivered with a factory calibration certificate and a 6x12 channel coupling matrix. Calibration to specific ranges is available as an option, as well as ISO-17025 calibration.

Conditioning, Acquisition, Use of the decoupling matrix

The K6D225 force/torque transducer generates 12 output signals accessible via 2 rugged UP13 type connectors for 6 channels each. The redundant architecture can be used either to improve the accuracy (<= 0.2%) or to robustify the installation by using two synchronized acquisition systems GSV-8DS.

For the 1st case, a 6 x 12 decoupling matrix supplied with the sensor is used in the GSVmulti acquisition software (supplied with the sensor) to compensate for transverse effects in an optimal way, and thus obtain maximum accuracy.

If the choice is made to use only 6 output signals from the K6D225, or to use a redundant measurement, the complete calculation of the forces, the real torques and the compensation of the transverse effects is done in the conditioner GSV-8DS before being transmitted as an analog or digital signal (serial link, CAN, EtherCAT, LAN, WifI or 3G). The origin of the reference frame in which the measured forces are projected is generally the center of the contact surface (see documentation).

Installation

The 6-component load cell K6D225 is easily installed on machine tools, arms, or test benches.

The introduction of the forces and the fixing to the bench are carried out by 12 taps M20 x 1.75 of 15mm of depth + 2 pins of contrage Ø10 mm F7 (Torques of tightening: see here). The application of the force is made on the portions of the surface raised by 1 mm. The inner part of the surface is used for centering.

The sensor is supplied with 5 VDC. The operating temperature range is -10 to 85°C. The output signal is not amplified. The sensor is delivered with either a connector or a 5m cable.

Dimensions: diameter 225 x height 140 mm.