- Measuring ranges from 0 ... 500 N up to 0 ... 100 kN
- Simplest mounting on press stamp
- Compact and very robust construction
- Hermetically sealed construction
- Small measuring ranges with overload protection
- Suitable for all standard manual presses with stamp holes of 10 H7
- Adaption to right and left handed users is possible
ApplicationThe load cell model 8451 was developed for the work forces arising on smaller manually operated presses. With its small dimensions in height of only 75 mm, it is mounted in place of the tool’s upper part into the stamp borehole. On its lower side it features the same 10H7 or 20H7 borehole used for adapting the tool as the stamp. As a result, the actual compression force on the axis of the stamp is measured. This load cell is therefore suitable for application on all standard manual presses with a stamp borehole of 10H7 and 20H7.
The vertically arranged compression body makes the load cell less vulnerable to rapidly rising forces as well as relatively sturdy against load from lateral forces or torsion. The mounting of this load cell in the press is very simple and does not require additional mechanical parts that are needed when using other sensors to keep the force on the sensor axis.
Manual presses can be configured for left and right hand workers as the connecting cable can be taken out of the press to the other side of the work zone by simply turning the load cell. The construction of the load cell = 0 ... 5 kN fulfils the protection class IP67 with its high-strength cable gland and use of O-ring seals to cover the measuring element. Therefore it is also suitable for working places where lubricating and cooling liquids are used.
Load cells with measuring range = 0 ... 2 kN have a mechanical overload protection up to 5 fold of the measuring range.
DescriptionLoad cell model 8451 is a compression element with strain gauges applied to both sides. The measuring element is a horizontally arranged membrane for measuring ranges = 0 ... 2 kN. The full bridge consisting of wired strain gauges supplies a bridge output voltage in direct proportion to the physical measurement value. A stable reference supply voltage is required for this.
The load cell measures the compression forces between the ring-shaped contact area to the press stamp and the press tool. The opposite areas must be flat, polished and hardened. The pin on the top side and the borehole on the bottom serve only for mechanical mounting and aligning the components correctly. The pin has two flat surfaces on opposite sides, which help to fasten the sensor in the stamp borehole with its cable outlet in the required direction. The tool is fastened in the borehole of the sensor body with the help of a clamping screw. The integrated sensor connecting cable is approx. 1 m long and designed for many motion cycles as a robot cable.
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