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Log machines of RLM series

RLM log machine a.k.a. log moulder, log profiler, log planer, log rounder, log rounding machine

Purpose of RLM® log moulders

Log machines of RLM series are used in the log home building industry as well as in saw milling and lumber milling businesses.

Woodlandia log moulder log profiling Possible profiles
  •  Log moulder of RLM series will work well for medium and big size businesses manufacturing 30-300 log home kits per year.
  • RLM log machines allow production of different profile logs for log home kits
  • RLM machines can diversify product line of saw mill business
  • RLM log profilers can produce lumber and cants from raw barked stems in one pass
  • RLM machines can be an interesting and optimal solution for those who think what to do with stems killed by pine beetle


Principals of RLM® log moulders


  • RLM stands for Rotary Log Moulder or Rotary Log Mill
  • RLM machines use the through-pass log milling principal
  • Log is automatically fed into the milling head 
  • Milling head has number of knives which spin around the moving log
  • Additional milling and rip sawing unit diversify output products


Profiling Rip-sawing
log profiling principals RLM log rip sawing principals



RLM machine schematics (RLM-320MF)
RLM-320 scheme
  1. Base frame
  2. Log infeed unit. Function: proper infeed of the log into rotary milling head
  3. Rotary milling head with knives. Function: log debarking, milling of perfect cylindrical shaped log
  4. Milling unit. Function: log alignment and milling of portion of profile
  5. Outfeed alignment unit. Function: proper log orientation and infeed into next milling unit
  6. Profile milling unit. Function: form required log profile
  7. Sawing unit. Function: rip sawing of log (if necessary)


Demo videos


RLM-320MF mills round house logs with Swedich Cope RLM-320MF mills squared cant (timber) from 310mm stem


  Woodlandia log moulder of RLM series

Why RLM® log moulder?

  • RLM machines are high performance machines using "one pass - all done" idea
  • RLM machines do process raw barked stems, no need to have debarker
  • Logs can be processed to required profile in the same pass
  • Unlimited log length
  • Diversity of output log profiles
  • Inexpensive maintenance
  • Heavy duty design
  • Robust & reliable
  • Able to work from -16 to +30 C
  • For optimal performance just 2 men crew required (although a 1 man operator is possible too)
  • RLM is patented "know-how" technology 
  • RLM has been developed and used since 1990


Specification of RLM machines for log home builders

  RLM-560 RLM-400 RLM-320MF RLM-320 RLM-280 RLM-240
Picture design...

waits for its 1st customer

Woodlandia RLM-400 RLM-320 RLM-320 RLM-280 RLM-240
Min top - Max butt
log diameter range
diameter range of
milled logs
min log length 10 ft
3.0 m
8.2 ft
2.5 m
6.56 ft
2 m
6.56 ft
2 m
6.56 ft
2 m
6.56 ft
2 m
Power of rotary
milling head motor
74 HP
55 KW
74 HP
55 KW
74 HP
55 KW
74 HP
55 KW
74 HP
55 KW
50 HP
37 KW
Rotary head
480 rpm 700 rpm 900 rpm 900 rpm 1000 rpm 1000 rpm
Power of radial
saw motor
- - 40 HP
30 KW
30 HP
22 KW
30 HP
22 KW
30 HP
22 KW
Max radial sawing - - 11.8"
300 mm
150 mm
150 mm
150 mm
Number of radial
saw blades
- - 1-6 1-6 1-6 1-6
Sawing frequency - - 1500 rpm 1000 rpm 1000 rpm 1000 rpm
Power of profiling
head motors
2*15+2*20 HP
2*11+2*15 KW
Frequency of
profiling heads
2925 rpm 2925 rpm 2925 rpm 2925 rpm 2925 rpm 2925 rpm
Power of log feeding
system motor
3*2 HP
2.2*2 KW
2*2 HP
2*2 KW
2*2 HP
1.5*2 KW
2*2 HP
1.5*2 KW
1.5 HP
1.1 KW
Feeding speed 3-19 ft/min
1-6 m/min
3-19 ft/min
1-6 m/min
3-26 ft/min
1-8 m/min
8-26 ft/min
2.5-8 m/min
8-26 ft/min
2.5-8 m/min
8-26 ft/min
2.5-8 m/min
Length 34 ft
10.35 m
34 ft
10.35 m
25 ft
7.6 m
24 ft
7.3 m
24 ft
7.3 m
16 ft
4.95 m
Width 8.2 ft
2.5 m
8.2 ft
2.5 m
6.56 ft
2 m
6.56 ft
2 m
6.56 ft
2 m
6.56 ft
2 m
Height 4.92 ft
1.5 m
4.92 ft
1.5 m
7.05 ft
2.15 m
7.05 ft
2.15 m
7.05 ft
2.15 m
6.23 ft
1.9 m
Weight 24250 lb
11000 kg
22046 lb
10000 kg
13228 lb
6000 kg
12566 lb
5700 kg
12125 lb
5500 kg
8818 lb
4000 kg
Max power required inquire inquire 250 KVA 160 KVA 160 KVA 160 KVA
Environment -16 to +30 C -16 to +30 C -16 to +30 C -16 to +30 C -16 to +30 C -16 to +30 C

It is important to know in prior following facts about RLM-machines:Limitations for max dia for RLM

  • all parts are metric
  • proper automated waste removal system is critical because poor waste removal can badly affect productivity
  • log sorting is necessary for better productivity
  • for max productivity automatical in-feed and out-feed log decks as well as in-feed and out-feed conveyors are recommended
  • speed of automated in-feed conveyor is to be adjustable to synchronize with in-feed speed of RLM-machine.
  • RLM machine' rotary head can remove up to 5cm (2") on radius or 10 cm (4") on diameter of the log. It means that butt diameter of input raw log must be not more than 4 inches than its top diameter. For example if output product (dowel) diameter is to be = 12" and top dia of raw log is 13" than max diameter of log butt is to do not exceed 12" + 4" = 16"

About productivity of RLM log moulders


Woodlandia RLM machines are most effective equipment in terms of cost/productivity.

On average, RLM log moulders are able to produce 1500 -3000 ln ft (500-1000 ln m) profiled logs per 8-hours workshift. 
Processing speed depends on:

  • raw barked log diameter and shape (croocked and bowed logs are not good for RLM machines), please consider using a log lathe for crooked logs
  • complexity of finished profuct profile (i.e. to mill tongue&groove on squared timber profile lower speed must be chosen than for Swedish cope profile on round log)
  • infrastructure and logistic: in-feed/out-feed automation and log sorting are recommended
  • wood species and moisture content 
  • tool sharpness

There is no similar equipment in same price range with productivity close to productivity/quality of Woodlandia RLM log moulders. Even better productivity (up to 5000 ln ft) can be achieved if automatic log infeed/outfeed equipment and proper log sorting are used. RLM log moulders are much more efficient than any log lathe intended for profiling of house logs or competitive machines of other manufacturers.


Click here to overview info, pictures and videos of
MultiLog production line based on log moulder RLM-320MF
Woodlandia MultiLog-1 layout idea 1.1




  • Our price lists our available for download, click here
  • 50% upfront, 40% before delivery, 10% during 1 month after delivery
  • For delivery quotation please inquire (postal or ZIP code of a destination is required)
  • All RLM machines are built by special orders only (usually no inventory, but some popular models can be in stock, please inquire)
  • Please allow 60-120 days for manufacturing and delivery
  • 1 year limited warranty covering bearings, electrical components, motors is provided for customers in USA & Canada
  • By special order NEMA-compatible motors can be installed on RLM machines (by default all RLM machines electrical parts are for European 3phase 380V, 50Hz power)
  • CSA/ULC/CE certification is optional 
  • For detailed leasing information please click here


Canadian dollar

Please inquire about exact cost in CAD.
Since Canadian dollar is subject to change due to fluctuations of USD/CAD exchange rate, price in Canadian Dollars will be determined basing on buying USD rate defined by TD Canada Trust Bank.





RLM: round log processed into cant Manufacturing shop RLM: profile sample



Woodlandia Log Moulder

Woodlandia Log Profiler

Woodlandia log machine

Profiled logs

To see other pictures of RLM machines, click here


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