689C rounding chipper edger

689C rounding chipper edger is designed for production of rounded logs with a long groove for blockhousing, shaped beams and edge-surfaced lumber from 180-240 mm diameters. The machine can be used at bottom timber landings of harvesting companies, forest farming facilities, etc. It can function in a closed unheated space at ambient temperature of -16°to +30°С.

cтанок 697С оцилиндровочно-фрезерный

станок 689c

689C lathe Specification

Maximum butt end diameter of processed log, mm


Rounding tolerance, mm, no more than


Log length, mm:
    minimum, no less than
    maximum, no more than

4 500
6 500

Feed rate, m/min

0 - 4

Element diameter after rounding, mm

180; 200; 220; 240;
260; 280; 300; 320

Rotation frequency, rpm:
     Rounding head
     Cutter spindles
     Sawing unit

3 000
1 450

Rated power, kW:
     Rounding spindle
     Top cutter spindle
     Bottom cutter spindle
     Saw spindle
     Additional spindle


Rated voltage, V:
     Drive power circuit
     Control circuit


Dimensions, mm:

7 500
2 000
1 520

Weight, kg, no more than

7 650

Distinctive aspects of machine design and furnishing

- Frequency converter for smooth feed rate adjustment.

- High quality bearings of the rounding unit made in Czech Republic.

- Three sets of cutting tools for the rounding unit.

- One set of outfit.

689C lathe video (d 180-280 mm)


689C lathe photo gallery:

689C lathe main units

Оцилиндровочный узел

Rounding unit

Rounds a rough log, i.e. after the log passes this unit, it is rounded to various diameters (from 180 to 320 mm) calibrated along its length.

Оцилиндровочный и фрезерный узлы

Rounding and cutting units

After the rounding the element obtains a center line that remains unchanged throughout the procedure. Thus the upper and lower cutter will be symmetric about the center line.

Пильный узел

Sawing unit

Фрезерный узел

Cutting unit

This unit processes the element from up and down to obtain a desired shape in accordance with the cutting chart.

Additional information on 689C lathe

1. Warranty
The manufacturer provides a 1 year warranty for all equipment

2. Tools, commissioning and start-up
All machines are equipped with cutting tools. An additional agreement for commissioning and start-up may be concluded.

3. Materials processed
This machine is designed for processing of round softwood and hardwood trunks of 3rd grade and above as per GOST 9463-72; GOST 9462-71.

4. Machine manufacture time
Machine manufacture time is within 1-1,5 months.

5. Payment terms
50% advance payment and 50% when the equipment is ready for shipment. 3% discount may be granted for 100% advance payment.

6. Waste
Chips (after rounding, non-pulp - with bark),
Scrap (after smoothing),

7. Sawdust disposal
Two types of sawdust disposal depending on production facilities are considered (not included into machine price):
- scraping conveyor (preferable);
- pneumatic conveying.

8. Dimensions of materials processed
689C lathe is a feedthrough machine, so the maximum length of a log is of no importance, the only limitation is butt end diameter which should not be over 440 mm. Minimum log length is 4500 mm.

9. Saw specifications
Saws for linear sawing with carbide plates as per GOST 6769-79 are to be used on this device. Register diameter 50mm. Outer diameter for side cutting of logs of 210-280 mm in diameter no less than 560 mm and no less than 500 mm for logs of 180..200 mm in diameter. Number of teeth for a 560 mm saw is 28, blade thickness 3,6 mm, plate width 5,2 mm. Rake angle 25-30. Machine operation depends on proper saw maintenance and usage. Saws must be forged and well-sharpened. Maximum tooth blunting radius 50 μm. Saw blunting is manifested by white bloom on its surface. No more than 2 saws are allowed for log rounding. Up to 5 saws are allowed for cutting of 150 mm high beam. Key groove 14x4 mm. Compensatory notches - 6. 28-30 teeth.

Assembly and installation

The installed lathe should be easily accessible and well-lighted. The lathe is installed on a foundation with the depth depending on the ground type but no less than 600 mm and attached to the foundation by six 20 mm anchor bolts. After the installation onto the foundation the lathe is leveled. The level is mounted onto the foundation. Maximum allowable horizontal deviation is 0,2 mm along 1000 mm. The foundation is then cemented and consolidated; then the anchor bolts are tightened.