ZhongKeMiDian Spoke Load Cell, 20 kg–300 t

Overview

The ZhongKeMiDian spoke load cell measures tension and compression through a central threaded load point and an eight-hole mounting pattern. Fourteen capacity options span 20 kg to 300 metric tonnes, with body diameter and thread size increasing by capacity group. Its strain-gauge bridge output suits weighing, force testing and load-monitoring systems when paired with suitable signal conditioning. Choose the capacity and mounting dimensions for your installation.

Features

Bidirectional measurement: measure tensile and compressive loads with a symmetrical sensing structure and bridge layout.
Capacity-specific sizes: select from 14 rated capacities, with body diameters from 72 to 350 mm.
Central load introduction: a threaded central boss and eight mounting holes provide a defined load path for fixtures and weighing assemblies.
Measurement performance: combined accuracy of 0.05% FS, with nonlinearity, hysteresis and repeatability specified separately below.
Metal construction: 17-4PH stainless-steel construction and a one-piece spoke structure support stable load measurement.
Sealed design: IP66 protection and a 2 m cable for integration into measurement equipment.

Specifications

Sensor type	Spoke-style strain-gauge load cell
Loading direction	Tension and compression
Available rated capacities	20, 50, 100, 500 kg; 1, 2, 5, 10, 20, 30, 50, 100, 200, 300 t
Nominal sensitivity	1.0–2.0 mV/V, configuration dependent; use the calibration sensitivity for the selected unit.
Combined accuracy	0.05% FS
Nonlinearity	±0.03% FS
Hysteresis error	±0.03% FS
Repeatability error	±0.03% FS
Creep	±0.03% FS / 30 min
Zero temperature coefficient	±0.02% FS / 10 °C
Input resistance	385 ±35 Ω
Output resistance	350 ±3 Ω
Insulation resistance	≥2000 MΩ
Excitation voltage	5–12 VDC
Operating temperature	−20 to +70 °C
Allowable overload	120% FS
Ingress protection	IP66
Construction material	17-4PH stainless steel
Cable	Ø5 mm × 2000 mm long

FS means full scale. Capacity labels in kg and t describe rated load capacity, not the sensor's own weight; 1 t equals 1000 kg. Allowable overload is not a continuous measurement range. This is a single-axis tension/compression load cell.

Capacity and Mounting Dimensions

Choose the rated load first, then check body diameter, central thread and mounting-hole dimensions. All dimensions below are in millimetres; refer to the dimensioned drawing in Visual Details for A, B, C, D, E, H1 and H2. C is the outside diameter, M the central thread, and the drawing identifies eight ØD holes with eight ØE counterbores.

Selected capacity	A	B	C	D	E	M	H1	H2
20 / 50 / 100 / 500 kg; 1 / 2 t	18	59	72	5.5	10	M12×1.75	24	24
5 t	29	89	104.7	6.5	11	M16×1.5	32	35
10 / 20 / 30 t	39	105	125	9	14	M30×2	48	52
50 t	51	117	143	10.5	17	M40×1.5	51	57.5
100 t	76	163	200	13	20	M64×3	70	86
200 t	120	264	306	22	32	M90×3	120	125
300 t	150	296	350	26	38	M120×3	180	185

Applications

Industrial weighing: integrate the load cell into a weighing fixture or platform with the capacity and support arrangement matched to the load.
Tension and compression testing: measure axial loads in test rigs using the central thread and a suitably aligned fixture.
Press and assembly monitoring: track applied force during pressing or assembly with suitable amplification and data acquisition.
Load-monitoring systems: connect the bridge signal to compatible instrumentation for display, recording or controller feedback.

Installation and Signal Conditioning

Match the capacity, central thread and mounting dimensions to the fixture. Apply the load along the intended sensing axis and limit unwanted side loads and bending moments.
Use the eight-hole mounting pattern and appropriate fasteners for the selected size; do not interchange hardware across capacity groups without checking dimensions.
Connect the bridge to compatible instrumentation using the correct wiring information. Verify pinout, excitation and polarity before powering the system.
Zero and calibrate the complete installation for its intended load direction and measurement range. Keep operation within the rated load, temperature and excitation limits.
Route the cable clear of sharp edges and moving parts, with strain relief at the connection.

The sensor provides a low-level mV/V bridge signal. A display/controller, transmitter or amplifier may be added separately. Accessory examples include displays with RS485/RS232 communication, transmitters offering 0–5 V, 1–5 V, 0–10 V, ±5 V or ±10 V outputs and 0–10 mA, 4–20 mA or 12 ±8 mA outputs, plus eight-input signal-conditioning modules. These describe optional accessory configurations, not outputs or ports built into every sensor. Select the signal conditioner for the sensor's bridge sensitivity and excitation requirements.

What's Included

1 × ZhongKeMiDian spoke load cell in the selected capacity, with its attached cable.

Displays, transmitters, amplifiers, adapters, mounting fixtures and fasteners are not included. The product images illustrate the spoke-style construction; use the selected capacity's dimension row for installation sizing.