Dimensional measurement device PROMAC-X

Overview
PROMAC-X is a precision instrument for measuring inner bore wear, corrosion, ovality and surface defects in cylindrical process components such as extruder barrels and material cylinders. It quantifies wear levels, locates damaged areas, evaluates remaining service life and supports predictive maintenance for plastics, chemical fiber and rubber processing equipment.

Preventive inspection for extruder barrels
PROMAC-X is designed for preventive barrel wear diagnostics during routine maintenance. Measurements can be taken without full disassembly of the process section: screws are withdrawn and the barrel is clean and cooled. This reduces inspection time and labor compared with traditional dismantling. During scanning, PROMAC-X records inner bore profiles to identify wear depth, corrosion, ovality changes and abnormal surface deposits. Resulting data enables informed decisions on continued operation, maintenance scheduling and service-life extension.

Barrel wear conditions
Normal wear types identified:

• Abrasion
• Corrosion

Abnormal wear example:

• Adhesion / friction (material build-up causing abnormal surface conditions)

SOLUTION
Electronic sensors
4-point measurement with fixed positions to capture the bore profile and local defects.

Measurement range
Inner bore inspection diameter: Ø25 - Ø50 mm
Customizable inspection diameter: Ø50 - Ø450 mm

Measurement outputs and reporting
Automatic inspection report including wear diagrams and color-coded maps for rapid assessment.

Color-coded wear areas

• Green = Within wear limits
• Yellow = Warning, approaching tolerance limits
• Red = Worn area, replace barrel / liner

Additional notes
Intended for twin‑screw and single‑screw extruder barrels and similar cylindrical process equipment. Measurement can be performed without full disassembly when screws are removed and the barrel is clean and cooled.

Technical specifications

• Power: <0.5 kW
• Power supply: 24 VDC
• Overall dimensions: Ø20 mm × 150 mm
• Total weight: 0.5 kg (measuring head)
• Accuracy: ±0.01 mm
• Axial measurement resolution: 3–5 mm
• Efficiency of measurement: within 30 mins
• Working temperature: <50 ℃
• Inner bore condition required: clean, smooth