Ref: K3R110 - Fz+Mxy - Ø110 - 5kN - 100Nm

Force & Torque Sensor – Fz 5 kN / Mx-My 100 Nm – Ø110 – IP66

3-Axis Force & Torque Sensor
Measurement range – Fz: ±50 N, ±100 N, ±200 N, ±500 N, ±1 kN, ±2 kN, ±5 kN
Measurement range – Mx/My: ±1 Nm, ±2 Nm, ±4 Nm, ±10 Nm, ±20 Nm, ±40 Nm, ±100 Nm
Accuracy: 0.1%
Output signal: 1 mV/V
Dimensions: Ø110 mm × 14 mm / Ø110 mm × 20 mm
Center bore: 25 mm H7
Mounting: 8 threaded holes M6 on Ø50 mm and Ø100 mm bolt circles
Material: Aluminum / Stainless Steel
Calibration: Tension and Compression
Connection: 10-wire cable, 3 m length, PUR 24-10

Overview

The K3R110 3-component sensor is a simple, precise, and cost-effective solution for simultaneous measurement of axial force (Fz) and torques (Mx/My) in a compact format (thickness: 14 to 20 mm).

The K3R110 sensor features an outer ring (fixed to the structure) and an inner ring (connected to the sample), linked by four instrumented beams, each equipped with a full strain gauge bridge. A central 25 mm diameter bore allows for the passage of a shaft, electrical wiring, or hydraulic connections.

K3R110 Sensor

The K3R110 can also be used as a 3-axis force sensor (Fx/Fy/Fz) by converting torque values into forces, using the known distance between the sensor's center and the point of force application.

K3R110 Application

Specifications

Eight versions are available, with force ranges from ±50 N to ±5 kN, and torque ranges from ±1 Nm to ±100 Nm. Accuracy is 0.1%.

Model	Fz [N]	Mx, My [Nm]	Material	Drawing
K3R110_50N_1Nm	50	1	Aluminum	Drawing
K3R110_100N_2Nm	100	2	Aluminum	Drawing
K3R110_200N_4Nm	200	4	Aluminum	Drawing
K3R110_200N_4Nm_VA	200	4	Stainless steel	Drawing
K3R110_500N_10Nm_VA	500	10	Stainless steel	Drawing
K3R110_1000N_20Nm_VA	1000	20	Stainless steel	Drawing
K3R110_2000N_40Nm_VA	2000	40	Stainless steel	Drawing
K3R110_5000N_100Nm_VA	5000	100	Stainless steel	Drawing

Models with ranges of 50N/1Nm, 100N/2Nm, and 200N/4Nm are made of aluminum alloy. Higher-capacity models are made of high-strength stainless steel (1.4542).

Installation

The K3R110 3-component force sensor is easy to install on machine tools, robotic arms, or test benches. Load application and sensor fixation are ensured via two sets of 4x M6 threaded holes (bolt circles: 50 mm and 100 mm) and 4x Ø6.5 mm alignment dowel holes.

Supply voltage: 5 VDC
Operating temperature range: -10°C to +85°C
Output signal: non-amplified
Supplied with 3-meter 10-wire cable (PUR 24-10)

Signal Conditioning, Acquisition, and Decoupling Matrix Use

The output vector L [Fz; Mx; My] is calculated by applying a decoupling matrix A to the four raw output signals U from the K3R110. This 12-term matrix A is specific to each sensor and identified during calibration.

A	Ch 1	Ch 2	Ch 3	Ch 4
Fz	a11 [N/mV/V]	a12 [N/mV/V]	a13 [N/mV/V]	a14 [N/mV/V]
Mx	a21 [Nm/mV/V]	a22 [Nm/mV/V]	a23 [Nm/mV/V]	a24 [Nm/mV/V]
My	a31 [Nm/mV/V]	a32 [Nm/mV/V]	a33 [Nm/mV/V]	a34 [Nm/mV/V]

Recommended Modules

GSV-8DS – High-performance 8-channel signal conditioner
GSV-8AS – Rugged version
GSV-4USB – 4-channel USB strain gauge conditioner

The included GSV-multi software supports real-time application of the decoupling matrix A, enabling direct acquisition of real force and torque values.