As a specialist manufacturer of powder and granular material handling equipment, AISHIN INDUSTRIAL (THAILAND) CO., LTD. offers overhaul services for rotary valves and feeders throughout Thailand. These pieces of equipment, essential at manufacturing sites handling powders and bulk materials—such as in the food, chemical, automotive, and building materials industries—are designed for long-term continuous operation. To prevent issues and maintain optimal performance, regular maintenance is essential, and we generally recommend performing overhauls every one to two years.

Overhauls in Thailand for Any Brand, Regardless of Origin

Our strength lies in providing overhaul services not only for our own products but also for equipment from other manufacturers. In Thailand, many European rotary valves are used despite the absence of local production facilities, making it impractical to ship them overseas for repairs due to cost and time constraints. In this context, only a few companies can perform local overhauls, and we are highly regarded as one of them. We have a proven track record of repairing European-made valves and can also manufacture replacement parts when needed.

▲ Before (left) and after (right) – cleaning, painting, and adjustment of rotary valve housing

▲ Before (left) and after (right) – motor base

▲ Before (left) and after (right) – step ball bearing replacement

Overhauls Tailored to Equipment Condition and Customer Needs

Depending on the equipment’s condition and customer requirements, our overhaul services may include:
• Parts replacement
• Painting
• Cleaning
• Structural customization or modification
• On-site work (such as installation)

Compared with purchasing new equipment, overhauls can often be performed at only a small fraction of the cost, offering significant economic benefits.

The Importance of Regular Inspections for Safety and Operational Efficiency

Rotary valves operate continuously, making it essential to detect and address issues such as wear, material buildup, looseness, or abnormal noise at an early stage. Neglecting maintenance can lead to reduced product quality or even serious accidents. For example, there have been cases where ignoring abnormal noises resulted in frictional heat igniting combustible powders, causing explosions, as well as incidents where operators were caught in machinery while manually clearing blockages. To mitigate such risks, planned maintenance is crucial, including regular disassembly and cleaning, and the removal of material buildup using scrapers.

▲ Maintenance and repair work in progress

At our company, inspections and maintenance are primarily conducted on-site in Thailand. If on-site work is not possible, equipment can be brought to our facility for comprehensive services, including disassembly, repair, reassembly, and painting. We also provide maintenance and consumable replacement for our group’s products across the ASEAN region, ensuring a reliable and robust equipment support system. We will continue to enhance our overhaul services, maintaining the precision, durability, and safety of powder and granular material handling equipment while minimizing on-site downtime.