2026-10-15
Traditional rust removal methods including sandblasting, mechanical grinding and chemical pickling are plagued by dust pollution, substrate abrasion and complicated operation. In this test, a 300W, 5mJ pulsed laser cleaning machine was applied to remove rust on cast iron reducer housing, to demonstrate the advantages of laser cleaning technology for industrial rust remediation. The equipment adopts a portable trolley suitcase design with pull rod and wheels. It can be moved flexibly for on-site operation without heavy setup, suitable for refurbishment work both in workshop and field sites.
Before Cleaning (Left Picture) The housing surface is covered with overlapping aged teal paint and reddish-brown rust. Corrosion penetrates deep into the gaps of casting cooling fins and builds up on bolt heads. Conventional grinding struggles to clean narrow crevices and often leaves residual rust. Abrasive tools will scratch the base metal. Chemical rust removers may corrode castings and generate costly waste liquid for disposal.
After Cleaning (Right Picture) Rust and old paint are completely stripped. The natural cast iron substrate is clearly exposed. Rust inside cooling fins and bolt edges & gaps is fully removed. No burning or excessive grinding scratches on the base material. The thread structure of bolts remains intact, preserving the original casting substrate with no need for secondary welding repair.
Core Benefit: Non-contact cleaning, only removes contaminants without damaging base metal. Cleaned parts are ready for subsequent painting or flaw detection directly.
This trolley-style 300W pulsed laser cleaner comes with pull handle and casters. It can be rolled directly to the target equipment, eliminating the need to transport heavy workpieces back to workshop. 5mJ pulsed energy is well suited for heavy rust and old paint removal. Compared with continuous-wave laser, it brings less heat impact, which is friendlier to cast iron parts prone to thermal discoloration.
Application scenarios: Aged equipment refurbishment, motor housing rust removal, construction machinery components, mold descaling & rust cleaning, local corrosion repair for steel structures.
This casting rust removal case proves that 300W 5mJ pulsed laser cleaning can effectively solve rust cleaning challenges on irregular castings with intricate gaps. Compared with conventional processes, it is consumable-free, dust-free and free of chemical waste. It delivers consistent cleaning quality. The portable design makes it ideal for on-site maintenance & refurbishment, serving as an efficient and eco-friendly solution for industrial equipment rust remediation.
