Ref: K6D175

6-axis force transducer from 10 kN /1kNm to 50 kN/5kNm

6-component force/torque transducer of the F6D/K6D series
Measuring ranges: 10kN/1kNm 20 kN/2kNm 50kN/5kNm
Calibration: tension/compression
Accuracy class: 0.5%;
Output signal: not amplified
Dimensions: Ø175 mm x 110 mm;
Mounting and centering: 6 x M16x1.2 threads + 2 x Ø10 mm F7 holes
Connection: Integrated circular connector (m16), 24-pin, male OR 5 m cable 26-24 PUR/24x0,16 (CG)
IP65 stainless steel construction
Weight: 11kg
Calibration certificate and 6x6 channel matrix included

Introduction

The 6-component force transducer K6D175 simultaneously measures the forces Fx, Fy, Fz and torques Mx, My, Mz on three perpendicular axes. This "second generation" 6-component load cell integrates 6 independent strain gauge force sensors. The forces are measured directly at the contact surface, allowing maximum rigidity and a reduced size. The contact surfaces are designed for optimized force transmission, reducing non-repeatability to about 0.1%, overall accuracy to 0.2% (after decoupling), and crosstalk sensitivity to 1%.

The K6D175 sensor is available in 3 measuring ranges :

Model	K6D175 (10kN/1kNm)	K6D175 (20kN/2kNm)	K6D175 (50kN/5kNm)
Fx, Fy [kN]	10	20	50
Fz [kN]	20	50	100
Mx, My [Nm]	1000	2000	5000
Mz [Nm]	2000	5000	10000
Connectivity	Connector : M16 or Cable : CG	Connector : M16 or Cable : CG	Connector : M16 or Cable : CG
Material	High strength stainless steel 1.4542	High strength stainless steel 1.4542	High strength stainless steel 1.4542

Each transducer is delivered with a factory calibration certificate and a 6x6 inter-channel coupling matrix. Calibration to specific ranges is available as an option, as well as ISO-17025 calibration.

Installation

The 6-component load cell K6D175 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 6 taps M16 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.

Conditioning, Acquisition, Use of the decoupling matrix

The acquisition of the raw measurement signals is done with :

a PC or PLC acquisition system equipped with a strain gage bridge input card
or via a conditioning module for strain gage bridge with analog or digital output, then a PC or a standard acquisition system.

The inter-channel decoupling matrix is implemented in the conditioning or acquisition module.

The real forces are obtained by multiplying the 6x6 decoupling matrix (M) by the vector I containing the 6 output signals of the K6D175. The origin of the reference frame in which the measured forces are projected is generally the center of the contact surface (see documentation). After neutralization of the inter-channel effects, a force applied on one axis will result in a force variation on only one axis. The accuracy of the measurement is thus improved by a factor of 5 to 10.

PM Instrumentation recommends the GSV series of digital interface conditioning modules for their simplicity of use, their accuracy and their ability to take into account decoupling matrices:

the GSV-8DS (High performance module, 8 analog inputs) or its ruggedized version GSV-8AS, which can be optionally equipped with a datalogger
the GSV-6LTE, equipped with a data logger and wireless connectivity A visualization and acquisition software is included with these modules (GSV-multi). Dll and VI files are also provided for the development of an application under Labview or in C / Visual Studio / C++ / .net