220×250mm Heavy Duty Thermal Break Profile Knurling Machine

This heavy-duty knurling machine prepares thermal break aluminum profiles for strip insertion, processing sections up to 220 mm wide by 250 mm high. Two 1.5 kW motors drive a pair of hardened steel knurling cutters, each 90 mm in diameter. The feed rate is continuously adjustable from 6 to 70 meters per minute through an inverter drive, letting operators match speed to profile cross-section and production volume. Knurling depth remains uniform because the support wheels can be raised or lowered through a 0–20 mm range, compensating for height variations in the extrusion.

Cutter positioning is handled by motorized axes combined with fine-adjustment handwheels, covering both vertical and horizontal directions. This arrangement cuts changeover time when switching profile types and makes it practical to run smaller batches without sacrificing setup repeatability. The frame is a welded steel structure, and motion components ride on Taiwan HIWIN linear rails with Schneider electrics in the control circuit — a combination that helps maintain stable tool engagement and low vibration during high-speed runs.

Overall 220×250mm Heavy Duty Thermal Break Profile Knurling Machine dimensions are 1000 × 1100 × 1550 mm, with a weight of roughly 800 kg. It runs on a 380V three-phase supply and carries CE certification. Standard safety provisions include an emergency stop and guarding over the work zone. Application covers thermal break profiles for windows, doors, curtain wall, and industrial aluminum sections where strong mechanical bonding between the aluminum and the insulating strip is required.

Lebulang Machine, which has been manufacturing aluminum processing equipment at its China factory for nearly 30 years, produces this knurling unit. Custom OEM configurations are available, and the machine is supplied on a factory-direct basis. The design is laid out for straightforward daily upkeep, and remote installation guidance is included without additional charge.