I. Product Application
This equipment is a precision inspection tool specifically designed for the wire harness manufacturing industry. Used in conjunction with fully automatic or semi-automatic crimping machines, it accurately measures the height of the crimped area on wire harness terminals following crimping. It serves as a key measuring instrument for controlling crimping quality and ensuring consistent terminal conductivity and tensile strength.
The crimp height directly determines the terminal compression ratio, tensile strength and electrical conductivity stability. By conducting real-time spot checks with this instrument, defects such as over-crimping, under-crimping, die wear and wire mismatches can be rapidly identified, thereby meeting the quality control requirements for automotive wiring harnesses.
II. Core Hardware Configuration
1. Measuring Head (Genuine Mitutoyo digital dial indicator)

• Equipped with ABSOLUTE origin sensor technology; the origin is retained even after power-off, eliminating the need for repeated zeroing upon restart;
• Large, high-definition digital display with a resolution of 0.01 mm, providing intuitive readings free from visual errors;
• Features dedicated ORIGIN zeroing and power on/off shortcut buttons; supports data output and can be integrated with production line SPC quality statistical systems;
• Designed with low measuring force to prevent deformation of thin-walled terminals under pressure, ensuring consistency in repeat measurements.

2. Integrated Main Unit Frame

• The entire unit utilises a hard alloy base and column, offering high rigidity and resistance to deformation, ensuring a stable measurement reference over long-term use;
• Vertical guide structure ensures the probe descends vertically without deviation, providing high positioning accuracy;
• Compatible with various horizontal and vertical terminal types, including standard copper terminals, waterproof terminals, high-current automotive terminals and fine wiring harness connectors.

3. Precision Probe Assembly
Interchangeable probes of different diameters are available to accommodate both micro-pin terminals and wide-body wiring harness terminals, conforming to the cross-sectional contours of various crimped profiles.
III. Product Advantages
1. Stable Measurement Accuracy
Measuring range 0–10 mm, accuracy ±0.02 mm, with minimal repeatability error; compared to handheld micrometres, vertical measurement eliminates dimensional deviations caused by hand-held tilting.
2. Efficient and Simple Operation
The platform-style base accommodates the height gauge; after zeroing with a single button press, simply place the workpiece gently to read the value. A single operator can complete a production line inspection in 3 seconds, significantly improving spot-check efficiency.
3. Durable, Robust and Suitable for Workshop Environments
The all-metal, rust-resistant body is suited to production environments with grease and dust from crimping machines; the Mitutoyo dial gauge features dust protection, ensuring a service life far exceeding that of standard domestic gauges.
4. Traceable Quality Data
The gauge supports data export, enabling the complete recording of terminal crimping height data for each batch and the generation of inspection reports, meeting the audit standards of customers in the automotive electronics and new energy wiring harness sectors.
IV. Applicable Industries
Automotive and new energy wiring harnesses, household appliance connection cables, industrial control cables, medical wiring harnesses, and connector terminal processing plants—suitable for all production workstations utilising crimping machines to process wiring harnesses.
V. Model Selection Notes
Extended columns and micro-fine measuring probes can be customised according to terminal dimensions; models with communication-enabled display units are supported to enable automated data collection on production lines.