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Woodlandia LogRipper sawmills

LogRipper is a family of sawmills for primary breakdown of raw wood. Machines of LogRipper series are effective sawmills for small & short logs.

What are the LogRipper® machines?

  • LogRippers of 200 & 300 series can be considered as a New Generation Scraggmills for smaller logs (pulpwood).
  • Want to know LogRippers Pros & Cons? Click here.
  • Curious about the productivity of the LogRippers? Click here.
  • There are few models of LogRippers available:
              LogRipper-200, LogRipper-200X, LogRipper-300

 

All models come with:

  • Motorized in-feed;
  • Integrated log turner;
  • Out-feed;
  • 2 laser beams;
  • 2 cutter heads with knives;
  • 16 saw-blades (for softwood);
  • Ready for external VAC;

the LogRipper-200 milling 6x6" (150x150mm)

Pros:

  • Can work in 3 modes: Scragg-mill, Multi-Saw, Slab-Processor;
  • Fairly priced for productivity, features & support;
  • In-feed & out-feed roll-tables are included into the system;
  • Easy integration with VAC system;
  • 2 laser beams are included;
  • 1 set of knives & 16 saw-blades (for softwood) are included by default;
  • Can mill up to 8 boards or cants from a log in one pass;
  • 2-3 men team: 1 to control the machine and feed the logs, 1-2 to remove milled products and slabs from the out-feed;
  • 2 chiping cutter heads eliminate 2 slabs on sides of a milled log = less hard wood waste than on competitor's solutions;
  • Saw-blades work on "cleaned" surface = longer saw-blade life;
  • 2 blade system allows thinner kerf than competitive 1 blade sysytems;
  • The operator can adjust the width of cut on the fly from log to log;
  • Easy & fast change of tooling;
  • Simple to operate;
  • Economical on power than competitive systems;
  • Works from ~3 phase, 380V/50Hz (Europe) as well as from ~3 phase, 460V/60Hz (North America);

Cons:

  • User shall provide proper waste management (optional VAC system for the machine is offered separately);
  • User has to understand very well the details of how to setup the machine properly (detailed user manuals are provided);
  • Improper setup of the machine can cause slower speed, sawblades damage & downtimes;
  • Produces "hard waste": 2 slabs: one on top, 2nd on the bottom of the milled log;
  • 6x6" (150x150mm) only can be milled from small range = 9 to 11" (230-280) logs;
  • 2 Saw-blade system may cause the step in the middle of the board (properly set machine shall not produce the step bigger than 0.5mm);
 

Featiures of the LogRipper-160X, 200, 200X, 300:

Models LogRipper-160X
(2017-2019)
OBSOLETE

LogRipper-200
(2018-2020)

 
LogRipper-200X
(since 2021)
LogRipper-300
(by spcial order)
Input raw log diameter range: 2-9 3/4"
(50-250 mm)
2-11"
(50-280
 mm
2-11"
(50-280
 mm
5-15"
(125-380
 mm
Input raw log length range: 1-6.5 m (40" - 21 ft) 1-6.5 m (40" - 21 ft) 1-6.5 m (40" - 21 ft) 2-6.5 m (6.5 - 21 ft)
Max Output lumber/timber (HxW): 160x160 mm
(6 1/4 x 6 1/4")
200x160 mm
(8 x 6 1/4")
200x160 mm
(
8 x 6 1/4")
300x250 mm
(
12 x 10")
Troughput: upto 15 m/min
(
49 ft/min)
upto 15 m/min
(
49 ft/min)
upto 15 m/min
(
49 ft/min)
upto 15 m/min
(
49 ft/min)
Expected Productivity when milling:

4.8-9.6 Mfbm (10-20 c m)
when milling 4x4"x10ft
(100x100x3000mm)

See notes below

10-20 Mfbm (24-48 c m)
when milling 6x6"x10ft
(150x150x3000mm)

See notes below

Similar or better than
LogRipper-200 as 200X
has 20% more powerful
motors

30-60 Mfbm (67-134 c m)
when milling 10x10"x20ft

(250x250x6000mm)
See notes below

Milling (cheaping) Motor Power: 2x18.5Kw (2x24HP) 2x18.5Kw (2x24HP) 2x22Kw (2x30HP) 2x40Kw (2x55HP)
Max thickness the of the wood fiber (side slab)
the machine is capabale to remove per side:
2 3/4" (70mm) 2 3/4" (70mm) 2 3/4" (70mm) 3 3/4" (95mm)
Sawing Motor Power: 2x15Kw (2x20HP) 2x15Kw (2x20HP) 2x18.5Kw (2x24HP) 2x30Kw (2x40HP)
Saw-blade diameter & kerf: D=250mm, d=50mm
Kerf =2.8mm
D=250mm, d=50mm
Kerf =2.8mm
D=250mm, d=50mm
Kerf =2.8mm
D=380mm, d=60mm
Kerf=4mm
Max saw-blades per spindle: 6 8 8 8
VAC system included? Yes, 5.5KW (7HP) Yes, 5.5KW (7HP)

No, VAC is optional
11KW (14.75HP)

No, VAC is optional
2x11KW (2x14.75HP)
 

Please,  if interested 

 

LogRipper-200 milling short logs

LogRipper-200 milling 6x6"

 

the LogRipper-160X overview

LogRipper-200 milling sticks

Wacth more videos on

  Woodlandia "YouTube" channel
 

 

What about milling speed of the LogRippers?

Please note that milling speed greatly depends on:

  • Motor power (machine with more powerful motors will be more productive);
  • Wood species density (hardwood is harder to mill, frozen wood maybe harder to mill);
  • Wood reduction (how much wood needs to be turned into the waste by the chipping cutterheads);
  • Number of saw-blades installed (more saw-blades = more resistance = more power required);
  • Condition of the saw-blades and cutters (dull tooling does not work, right angle for the saw-blades theeth is also important);
  • Infrastructure & waste management;
  • People (yes, people matter as knowledgeable, responsible, caring personnel is one of keys of the success and trouble free operation);

 

What about productivity of the LogRipper-200 & 200X?

  • Let's assume one needs to mill 6x6" or 150x150mm timbers;
  • 6x6"x10ft = 30 board feet per piece.  150x150x3000mm = 0.0675 cubic meterper piece;
  • Lets assume the LogRipper works 45 minutes per hour during 8 hours workshift = 360 min/workshift (some time maybe needed for the tooling change, cofee breaks, etc);
  • If we assume that the logs are fed butt to butt into LogRipper-200 or 200X working with average speed 20ft/min (6m/min) and it can mill 1-2 such logs per minute then it is 360-720 pieces per workshift;
  • It means that  LogRipper-200 or 200X theoretically can mill:
    • from 10,800 fbm to  21,600 fbm what is from 360 to 720 pcs of 6x6"x10ft per workshift;
      or
    • from 24.3 cubic meters to 48.6 cubic meters what is from 360 to 720 pcs of 150x150x3000mm per workshift;
  • Please note:
  • These numbers make sence only for the 6x6" or 150x150mm.
  • The actual speed depends on few factors (see these consideratoins above);
  • Other profiles can result with significantly smaller production numbers.
    For example for 4x4"x10ft (100x100x3000mm) the productivity would be different as 4x4"x10ft = 13.33 boardfoot and 100x100x3000mm = 0.03 cubic meter per piece.
    So during the work-shift one theoretically can mill:
    • from 360 to 720 pcs of 4x4"x10ft what is from 4,799 to 9,598 fbm;
      or
    • from 360 to 720 pcs of 100x100x3000mm what is from 10.8 to 21.6 cubic meters;

 

What about productivity of the LogRipper-300?

 
  • Let's assume one needs to mill 10x10" (350x250mm) squaresl
  • 10x10"x20ft = 166.67 board feet.   250x250x6000mm = 0.375 cubic meter;
  • If we assume that the logs are fed butt to butt into the LogRipper-300 and it works 45 minutes per hour during 8 hours workshift = 360 min/workshift (some time maybe needed for the tooling change, cofee breaks, etc);
  • Then LogRipper-300 working on average speed 20ft/min (6m/min) can mill 0.5-1 such logs per minute = 180-360 pieces per workshift;
  • It means that LogRipper-300 theoretically can mill per workshift:
    • from 30,000 to 60,000 fbm what is 180-360 pcs 10x10"x20ft per workshift;
      or
    • from 67 to 134 cubic meters what is 180-360 pcs of 250x250x6000mm per workshift;
  • Please note:
    • These numbers make sence only for the 10x10".
    • The actual speed depends on few factors (see these consideratoins above);
    • Other profiles than 10x10" can result with significantly smaller production numbers;

 

Please,  if interested