KMRplus

KMRplus force washers are drift-free due to their atrain-gauge technology. The sensors are compact, easily integrated & suitable for harsh conditions.

KMRplus

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KMRplus Strain Gauge-Based Force Washers: 11 Capacities and IP68 Degree of Protection

The KMRplus, like common washers, are suitable for mounting onto bolted or screwed connections. Sensors are available for threads ranging from M6 to M42 (forces of up to 2 MN). The KMRplus force washers are fitted with special strain gauges that cover a very wide angular range, making them highly insensitive to bending moments. The sensors are suitable for both fast and static measurement tasks due to the use of strain gauge technology and their high stiffness.

The sensors are not only made of stainless steel but are also hermetically sealed (IP68 degree of protection) to allow force measurements under harsh ambient conditions or outdoors. They ensure maximum immunity to electromagnetic interference owing to their cable and sensor-housing design that forms a Faraday cage.

The force introduction washers included in the scope of delivery ensure good force introduction. Various connector plugs and cable lengths allow adaptation to the respective measuring task.

The KMRplus force washers operate in the force shunt, hence calibration is required after installation to obtain quantitative results.

HBM accuracy class: 1
Capacities: 20 kN … 2 MN

For all conditions

Low heights of construction
For thread sizes ranging from M6 (20 kN) to M42 (2 MN)
IP68 degree of protection, stainless steel, and EMC tested

Can always be integrated: Requires minimal space, for standard thread and fold-back arm

Dynamic, yet drift-free

Based on strain gauge technology
Minimal displacement
Displacements in the µm range ensure extremely high stiffness
Bandwidths up to the kHz range

The drift-free alternative to a piezoelectric sensor: Optimum dynamic properties with virtually zero drift.

Easy to use

Various cable lengths available on request
Plug assembly for standard HBK measuring amplifiers
Force introduction washers for lower contact surface requirements

Ready for use in countless applications: The KMRplus optimally adapts to the measurement task.

Code	Capacity group	Capacity (nominal load) [N]	Capacity (nominal load) [lbf]	Height (without accessories)	Height (without accessories)	Diameter (without cable or plug)	Diameter (without cable or plug)
1-KMR+/2MN	>500 KN	2 MN	450 klbf	44.5 mm	1.75 in	120.8 mm	4.755896 in
1-KMR+/60KN	50-500 kN	60 kN	13.49 klbf	8.5 mm	0.335 in	26.9 mm	1.059053 in
1-KMR+/600KN	>500 KN	600 kN	135 klbf	16.5 mm	0.65 in	72.1 mm	2.838577 in
1-KMR+/1MN	>500 KN	1 MN	225 klbf	24.5 mm	0.965 in	87.1 mm	3.429127 in
K-KMR+	1-50 kN	20 kN,40 kN,60 kN,100 kN,200 kN,300 kN,400 kN,500 kN,600 kN,1 MN,2 MN	4.5 klbf,9 klbf,13.5 klbf,22.5 klbf,45 klbf,67.4 klbf,89.9 klbf,112 klbf,135 klbf,225 klbf,450 klbf	8.5 mm,10 mm,10.5 mm,12.5 mm,14.5 mm,16.5 mm,24.5 mm,44.5 mm	0.335 in,0.394 in,0.413 in,0.492 in,0.571 in,0.65 in,0.965 in,1.75 in	38.8 mm,87.1 mm,48 mm,19.9 mm,120.8 mm,56.3 mm,60.6 mm,23.6 mm,66.6 mm,72.1 mm,26.9 mm	1.527556 in,3.429127 in,1.88976 in,0.783463 in,4.755896 in,2.216531 in,2.385822 in,0.929132 in,2.622042 in,2.838577 in,1.059053 in
1-KMR+/100KN	50-500 kN	100 kN	22.5 klbf	10 mm	0.394 in	38.8 mm	1.527556 in
1-KMR+/400KN	50-500 kN	400 kN	89.9 klbf	12.5 mm	0.492 in	60.6 mm	2.385822 in
1-KMR+/40KN	1-50 kN	40 kN	8.99 klbf	8.5 mm	0.335 in	23.6 mm	0.929132 in
1-KMR+/300KN	50-500 kN	300 kN	67.4 klbf	10.5 mm	0.413 in	56.3 mm	2.216531 in
1-KMR+/200KN	50-500 kN	200 kN	45 klbf	10 mm	0.394 in	48 mm	1.88976 in
1-KMR+/500KN	50-500 kN	500 kN	112 klbf	14.5 mm	0.571 in	66.6 mm	2.622042 in
1-KMR+/20KN	1-50 kN	20 kN	4.5 klbf	8.5 mm	0.335 in	19.9 mm	0.783463 in

File	Description	Type	Languages	Size
KMR+ - Data Sheet (B05474)	KMR+ - Data Sheet	Technical Document	English	79 KB
KMR+ - Operating Manual (A05429)	KMR - Operating Manuals	Technical Document	English, Italian, French, Chinese, German	711 KB
KMR+ - EU Declaration of Conformity (ce359)	KMR+ - EU Declaration of Conformity	Certificate	English	621 KB
Reliable force measurement - Brochure (S00859)	Reliable force measurement - Brochure	Marketing Document	English	1 MB

KMRplus
Capacity group	50-500 kN, >500 KN, 1-50 kN
Capacity (nominal load) [N]	500 kN, 2 MN, 1 MN, 40 kN, 20 kN, 400 kN, 600 kN, 60 kN, 100 kN, 300 kN, 200 kN
Capacity (nominal load) [lbf]	112 klbf, 450 klbf, 225 klbf, 8.99 klbf, 4.5 klbf, 89.9 klbf, 135 klbf, 13.49 klbf, 22.5 klbf, 67.4 klbf, 45 klbf, 9 klbf, 13.5 klbf
Capacity in N (nominal load)	500000 N, 2000000 N, 1000000 N, 40000 N, 20000 N, 400000 N, 600000 N, 60000 N, 100000 N, 300000 N, 200000 N
Direction	Compression
Strain gauge / piezo	Strain Gauge
Calibration	Not calibrated
Output signal	mV/V (passive strain gauge)
HBK Accuracy class	1.5
Degree of protection	IP68
Mechanical adaptation	Force washer
Height (without accessories)	14.5 mm, 44.5 mm, 24.5 mm, 8.5 mm, 12.5 mm, 16.5 mm, 10 mm, 10.5 mm
Height (without accessories)	0.571 in, 1.75 in, 0.965 in, 0.335 in, 0.492 in, 0.65 in, 0.394 in, 0.413 in
Diameter (without cable or plug)	66.6 mm, 120.8 mm, 87.1 mm, 23.6 mm, 19.9 mm, 60.6 mm, 72.1 mm, 26.9 mm, 38.8 mm, 56.3 mm, 48 mm
Diameter (without cable or plug)	2.622042 in, 4.755896 in, 3.429127 in, 0.929132 in, 0.783463 in, 2.385822 in, 2.838577 in, 1.059053 in, 1.527556 in, 2.216531 in, 1.88976 in

Product Code	Description
1-KMRW/100KN	Force Introduction washers f. KMR+/100KN

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KMRplus

KMRplus Strain Gauge-Based Force Washers: 11 Capacities and IP68 Degree of Protection

For all conditions

Dynamic, yet drift-free

Easy to use

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