RICHI Sawdust Pellet Production Line Project Advances in Indonesia

The furniture industry around Jepara in Central Java has supplied carved teak to the world for generations. The workshops produce sawdust by the ton—fine, dry, and increasingly problematic as environmental regulations tighten. A new sawdust wood pellet production line in the district aims to turn that waste into revenue.

Market Background

Indonesia's wood processing industries generate millions of tons of sawdust and shavings annually. Some is burned for process heat. Some is dumped. Some accumulates in piles that occasionally catch fire or wash into waterways during monsoon rains.

Pelletizing offers a solution with established markets. Industrial users in Java—textile mills, food processors, power plants—burn biomass alongside coal or as complete substitutes. The price of wood pellets has risen with energy costs, making collection and processing economically viable where it wasn't before.

Raw Material Characteristics

Sawdust from Jepara's furniture workshops is mostly teak, with some mahogany and other hardwoods mixed in. It's dry—moisture typically 10 to 12 percent from kiln-dried lumber—and fine, requiring minimal size reduction before pelleting.

The challenge is contamination. Some sawdust contains sand from the workshop floor. Some includes finishes or adhesives from sanded surfaces. The plant must screen incoming material and reject batches that would damage equipment or produce off-spec pellets.

Process Design and Equipment

The Jepara line is configured for the feedstock's characteristics:

• Pre-crushing system handles occasional large pieces
• Hammer mill with screens sized for consistent particle distribution
• Rotary dryer with capacity in reserve for wetter incoming material
• MZLH series sawdust pellet mill with wear-resistant components
• Counterflow cooler for pellet stabilization
• Vibrating screen for fines removal and reprocessing
• Automatic bagging and palletizing

Because the sawdust is already dry, the dryer runs only when needed, saving energy. The pellet mill operates with compression ratios optimized for hardwood, producing dense pellets that meet export specifications.

Installation and Timeline

Mechanical assembly is complete at the Jepara site. Electrical installation continues, with local contractors running conduit and pulling wire under supervision from RICHI's field engineers.

Commissioning is scheduled for March, with commercial operation following in April. The customer has already secured offtake agreements with industrial users in the Jakarta area, ensuring market access from startup.

Environmental and Economic Impact

The plant will consume about 20,000 tons of sawdust annually at full operation—material that currently has low or negative value. For the furniture workshops, it provides a disposal channel that may eventually pay for their waste. For the wood pellet mill plant owner, it creates a product with established demand. For the environment, it reduces the open burning and dumping that have historically accompanied sawdust disposal.