Reduces oversized chips to acceptable sizes for pulping with minimal pins or fines.
The Acrowood Rechipper
A Rechipper is a machine that cuts wood in an un-oriented way. Chips fall down into a slanted spout in a random manner, and are finally cut by knives mounted on a spinning chipper disc. With excellent oversize chip reduction and high capacity, the Acrowood Rechipper is a superior choice for overs processing in the wood room.
42″ or 61″ diameter discs available
Flat bottomed spout for full use of anvil width
10 knives for excellent oversize chip reduction with high capacity
Gravity feed with options for bottom or overhead discharge
Heavy-duty, face-mounted, babbitt adjusted knives
Simple infeed spout
Easily mounted, 4-bolt, pillow block bearings
Easy knife access
Excellence in Chip Processing
Acrowood Rechippers are designed to reduce oversized chips to an acceptable size for pulping with minimal generation of pins or fines.
For maximum effectiveness chips would ideally be oriented so that the long axis of the chip would be perpendicular to the cut, and the resulting 2 pieces would each be half the length (approx.) of the original chip.
Rechipper Machine Options
42' or 61' discs are both available with 10 knife installation.
Overhead or bottom discharge configurations available.
Heavy-duty, face-mounted, Babbitt adjusted knives
Simple infeed spout
Easily accessed, 4-bolt, pillow block bearings
42' rechipper 50 HP – 3,600 lb. less motor Capacity—10-12 uph (~20 GTPH) (~50-70 m3/hr)
61' rechipper 100 HP – 7,000 lb. less motor Capacity—18-20 uph (~40 GTPH) (~100-115 m3/hr)
This classic machine has seen its best use in processing overs generated in sawmilling applications prior to the pulp mill. When generally large chips (+2″ round or square hole, and larger) and gross overs can be separated by a rotary screen, a rechipper is a good way to chop these up into smaller pieces before they are sent to the pulp chip van for transport.
Chip Processing Reliability
Where the pulp mill chip buyer has established a size specification that limits the percentage of oversized and gross overs chips to a maximum allowable number, the use of the rotary screen/rechipper combo can typically achieve this with sufficient reliability.
Overthick Chip Treatment Metrics
Overthick reduction: 65% Fines generation: 5% Pins generation: 25%
Knives to change Anvils to keep sharp Weekly access at least
42 inch Rechipper – Technical Machine Drawing
Specifications: Rechipper (imperial)
Disc Diameter (in)
Specifications: Rechipper (metric)
Disc Diameter (m)
Acrowood Rechipper Installation
Contact usto get more information about the Acrowood Rechipper or to see a demonstration.
The Rechipper is only one component in Acrowood’s complete line of chip processing equipment.
Download the Acrowood Rechipper brochure
Instantly download this Acrowood rechipper machine brochure provided in PDF format for easy reading and printing.
Case Study: Overthick Chip Chip Treatment
A rechipper is best used in sawmilling applications prior to the pulp mill. When generally large chips (+2″ round or square hole, and larger) and gross overs can be separated by a rotary screen, a rechipper is a good way to chop these up into smaller pieces before they are sent to the pulp chip van for transport.