PROMAC-S is designed for preventive inner bore inspection of extruder barrels during routine maintenance. It uses inside laser equipment and a 360° rotating laser sensor to measure barrel wear, diameter changes, and inner surface condition without complicated dismantling work. The barrel only needs to be clean, smooth, and below 50°C before inspection.
During measurement, PROMAC-S moves automatically inside the barrel at adjustable speed and collects circumferential data from 360° measuring points. With ±0.01 mm accuracy and 3–5 mm axial measurement resolution, it helps locate the maximum diameter area, identify wear distribution, and evaluate the actual condition of the barrel.
The system can complete measurement within 30 minutes and generate automated reports through dedicated software. This helps factories make maintenance decisions based on reliable data, reduce unexpected downtime, and maintain stable extrusion quality.




| Measurement Range | |
| Inner Bore Inspection Diameter | Ø50- Ø120mm |
| Customizable Inspection Diameter | Ø100- Ø450mm |

| Basic Info | |
| Power | <2 KW |
| Power Supply | 3.7V Lion-Battery |
| Overall Dimensions | Ø38mm*650mm |
| Total Weight | 1.5KG (Measruing Head) |
| Accuracy | ±0.01mm |
| Circumferential Measuring Points | 360° |
| Axial Measurement Resolution | 3-5mm |
| Efficiency Of Measurement | Within 30mins |
| Working Temperature | <50℃ |
| Inner Bore Condition | Clean, Smooth |
You Move A 3D-Laserscanner Inside The Bore And You Scan The Surface
A Huge Point-Cloud Is Generated
A Virtual Cylinder With The Wear Diameter Can Overlay The Actual Measurement And Can Visibly Define The Wear Areas

Green = Within Wear Limits
Yellow = Warning, Almost Out Of Specs
Red = Worn Area, Change Barrel / Liner





Founded in 2015, Lemix is a professional manufacturer focusing on R&D, production and service of extrusion equipment. since 2026 year, we have two factories which covers an area around 10,000 square meters.
Our core business covers twin-screw extruders, hot-melt extruders, screw cleaning & disassembly machines, cooling system cleaners and barrel wear detectors. We also supply key spare parts including screw elements, barrels, shafts and gearboxes, together with full maintenance, repair and upgrade services. in addition, we import high-performance stainless steel and provide customized material solutions for barrels and screws, especially high-wear and corrosion-resistant Hastelloy alloys.