At a Glance

Capacities: 0-12.5kN up to 0-540kN
Output: 1.5mV/V nominal
Environmental Protection: IP66
Accuracy: <±1.5%/RC typical
Custom-Sized Versions Available

Low Height & Compact – To easily fit where space is limited.
Optimum Performance Guaranteed – Its high-frequency response captures transient measurement fast.
Long-Life and Low Maintenance – With its rugged stainless steel construction.
Adapt It For Your Application – With our customisation service.
Submersible Versions Available – Perfect for marine and offshore applications.

Description

Applied Measurements CCG low profile donut load cell (also known as an annular load cell, force washer or load washer) has been designed for applications where bolt tension needs to be measured with a very low-profile transducer. They are also used in cable tension measurement applications where they are mounted at the anchor point to provide continuous monitoring.

The annular donut load cell design is inherently stiff which gives it an excellent frequency response allowing it to be used for transient measurements if required, while its rugged stainless steel construction and IP66 ingress protection rating ensure a long and maintenance-free life.

Our annular donut load cell design is one that customised regularly to suit a multitude of applications, these include even lower height versions, the current record for which stands at 5mm, fully submersible IP68 versions and versions with inserts to allow the use of a single load cell with multiple sizes of bolt. We have also constructed very high capacity versions, with 3000kN / 300 tonnes being the largest manufactured to date, however, it is possible for us to manufacture versions rated to 15MN / 1500 tonnes and above for extreme applications.

Additionally, if you can allow the space for a taller load cell, the accuracy can be vastly improved by doubling the standard height. So, if you need a special version to suit your application please call your Applied Measurements expert technical team who will be happy to discuss your required specification in detail, or use our contact form in the sidebar.

Technical Specifications

Rated Capacity (RC)	kN	0-12.5, 0-25, 0-35, 0-50, 0-100, 0-160, 0-200, 0-250, 0-300, 0-360, 0-540
Operating Modes	Compression Only
Sensitivity Range	mV/V	1.5mV/V nominal (see note below)
Zero Balance/Offset	±%/Rated Output	<5
Non-Linearity	±%/Rated Output	<1.5 typical / 5 worst-case
Hysteresis	±%/Rated Output	<1.5 typical / 5 worst-case
Repeatability	±%/Rated Output	<±1% for identical mounting position, <±10% for altered mounting position (see note below)
Temperature Effect on Zero	±%/Rated Output/˚C	<0.030
Temperature Effect on Sensitivity	±%/Rated Output/˚C	<0.030
Input Resistance	Ohms (nominal)	375 (750 for capacities above 40kN)
Output Resistance	Ohms (nominal)	350 (700 for capacities above 40kN)
Insulation Resistance	Megohms	>5000 @ 50Vdc
Excitation Voltage	Volts AC or DC	10 recommended (2-15 acceptable)
Operating Temperature Range	˚C	-20 to +70
Compensated Temperature Range	˚C	+10 to +60
Storage Temperature Range	˚C	-20 to +70
Safe Overload	% of Rated Capacity	150
Ultimate Overload	% of Rated Capacity	300
Deflection @ Rated Capacity		See dimension table
Fundamental Resonant Frequency*		See dimension table
IP Rating (Environmental Protection)		IP66
Weight (excluding cable)		See dimension table
Fatigue Life		10⁸ cycles typical (10⁹ cycles on fatigue-rated version)
Cable Length (as standard)	metres	2
Cable Type		4 core + screen, PVC sheath via cable gland
Construction Material		Stainless Steel
Max Resolution		1 part in 250,000 (with appropriate instrumentation)
*The resonant frequency is calculated with the body of the load cell attached to a large plate, ensuring that only the sensing element oscillates: This is vital to achieve the highest natural frequency and subsequent frequency response.
Note: The sensitivity range stated above is dependent on the selected mounting position. If the mounting position is maintained during operation, then the CCG will be repeatable and linear within the parameters specified above. If the mounting position is altered, then the sensitivity range may change by up to ±10%, as may repeatability.

Product Dimensions

CCG Annular Donut Load Cell Outline Drawing

Model	Capacity (kN)	ØA	ØB	ØC	H	Deflection	Resonant Frequency (kHz)@zero load	Weight (kg)
CCG	12.5	6.1	10.4	25	12	0.01	25	0.05
CCG	25	8.2	14	25	12	0.01	33	0.06
CCG	35	10.2	17.7	32	12	0.01	31	0.1
CCG	50	12.2	21.3	38	15	0.02	21	0.2
CCG	100	16.3	29	48	20	0.025	19	0.3
CCG	160	20.3	36.3	50	20	0.025	24	0.3
CCG	200	22.3	40.4	55	25	0.03	20	0.4
CCG	250	24.3	43.5	60	25	0.03	20	0.5
CCG	300	27.3	49.6	63	25	0.03	22	0.5
CCG	360	30.5	54.9	76	30	0.035	17	0.9
CCG	540	36.5	65.5	88	50	0.06	10	2.0

All dimensions are in mm

Wiring Details

Wire	Designation
Red	+ve excitation
Blue	-ve excitation
Green	+ve signal
Yellow	-ve signal
Screen	To ground - not connected to load cell body

Ordering Codes & Options

Core Product	Capacity (inc Engineering Units)	Cable Length (m)	Example Result
CCG	12.5kN	002	CCG-12.5kN-002-000
CCG	25kN	002	CCG-25kN-002-000
CCG	35kN	002	CCG-35kN-002-000
CCG	50kN	002	CCG-50kN-002-000
CCG	100kN	002	CCG-100kN-002-000
CCG	160kN	002	CCG-160kN-002-000
CCG	200kN	002	CCG-200kN-002-000
CCG	250kN	002	CCG-250kN-002-000
CCG	300kN	002	CCG-300kN-002-000
CCG	360kN	002	CCG-360kN-002-000
CCG	540kN	002	CCG-540kN-002-000

Downloads

CAD Model Files

Our 3D models are provided in STEP format and can be viewed using FreeCAD. Other formats can be provided on request.

The .zip file below contains a separate model for each product variant.

CCG STEP

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