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EVALUASI JUMLAH PENGGUNAAN TRUK ANGKUTAN DI SUATU PERUSAHAAN HUTAN DI RIAU (An evaluation of the number of logging trucks used by a forest company in Riau) Dulsalam Dulsalam
Jurnal Penelitian Hasil Hutan Vol 8, No 1 (1990): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1990.8.1.1-7

Abstract

A  study   of  the  number   of  logging trucks  used  by  a forest  company   in. Riau  was carried out  in 1989.  To  evaluate the  number   pf  logging  trucks,   transport   times  and  load.  volumes  of  logging trucks  were collected  through  a work  time study.   The  objective   is to find  out  the  number  of  loggine trucks   which  meets  the  logging company's   production   target. The  investigation   comes  up  to  the  following   conclusion:1.Log  number  and  load volume  averages hauled  by Nissan  TZ  52  logging trucks  were 4 logs/trip  and  23.84  m3 /trip, respectively.   At  the  distance  of  21 km,  the  logging trucks  normally  took  190.65  minutes  (3.18 hours)  to transport logs from  the  forest  to  log yard.  Logging  trucks  could  transport  logs three  round  trips per  day.2. The  normal  average productivity    of  the  logging trucks  was 71.52  m3  per  day.3.The average productive   time  of  logging trucks  was 80%  while  the average non  productive   time  was 20%.4. The  number   of  logging  trucks  available  was 2 units  which  conformed   with  the  company's   production    target. For better  operations:  it is recommended   that  the company  has one additional  logging truck  to meet  its production  target in the  next  working  plan.
PRODUKTIVITAS DAN BIAYA PENYARADAN KAYU DENGAN TRAKTOR PERTANIAN TYPE FORD 5660 DI HUTAN TANAMAN SEMARAS, PULAU LAUT Dulsalam Dulsalam; Sukadaryati Sukadaryati
Jurnal Penelitian Hasil Hutan Vol 20, No 1 (2002): Buletin Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2002.20.1.35-54

Abstract

Investigation on assessing the productivity and cost of log-skidding using a farm tractor type Ford 5660 was carried out at the Semaras plantation forest under PT. lnhutani's concession situated in Pulau Laut (South Kalimantan) in 1999. The objective was to get appropriate and reliable information on the productivity and cost of log-skidding. The data collected were skidding-distance, working time, log volumes, purchasing- cost. and labor wage; and further, they were all incorporated for assessment.The results were: I). Log volumes skidded using the farm tractor ranged between 0.065 - 1.134 m3/ one- trip with an average of 0.434 m3/one- trip, while skidding-distance varied from 0.25 - 1.85 hm with an average of 0.937 hm, 2). Skidding time was in the range of 0.06 - 1. 14 hours/one-trip with an average of 0.23 hours/one-trip, 3). The productivity of log-skidding using the farm tractor recorded between 0.062 -6.086 m3-hm/hour with an average of 2.075 m3-hm/hour, while the cost of log-skidding was in the range of Rp 9,522/m3-hm - Rp 931,000/m3-hm with average at Rp 55.777/m3-hm. and 4). In implemanting the use of fram tractor for logskidding, the log volume and skidding-distance are suggested at about 1.2 m3 and 2 hm, respectively.
JENIS DAN BANYAKNYA KAYU YANG DIPAKAI DALAM KONSTRUKSI JALAN REL DI HUTAN RAWA PROPINSI RIAU Dulsalam Dulsalam; Apul Sianturi
Jurnal Penelitian Hasil Hutan Vol 1, No 2 (1984): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1984.1.2.23-28

Abstract

An  observation on  the  amount  and  species of  wood  used in rail-road  construction in the swamp forests has been carried out in the PT Alam Wanasaki and PT Tenaga Kampar  concession  areas both  located  in Riau.The observation  revealed  that  the wood  species  used in rail-road construction  at the PT Alam  Wanasaki area consist of 24 species  with  a volume  of  243 m3/km. Those  used at the PT Tenaga Kampar area  consist of 12 species comprising a volume  of  204 m3/km and  the species  used at  the PT Alam  Wanasaki area are mostly  helat  (Xylopia malayana Hooh .f.) with  a total  volume  of  71 m3/km. The same  is found  at the PT Tenaga Kampar  area using a total volume  of 58 m3/km. Other wood  species  used  in  rail-road construction in both  concession  areas consist  of a number  of  commercial  species.Wood  species  which  are  considered   suitable in  the  construction  of  rail-road in  the  swamp  forests  of  PT  Alam Wanasaki are  among  others: bintangur (Callophyllum .spp.), gelam   (Eugenia spp.), medang  (Litsea spp.),   menggeris (Koompassia  spp.), pelawan  (Tristania obovata  R.Br.), punak (Tetramerista glabra Miq.),  resak (Cotylelobium melanoxylon Pierre.),  tempurung (Baccaurea spp.), and  tembesu  (Fagraea spp.),  comprising  about 16%  of the  total  volume  used in the  construction.Wood species  selected  for  rail-road construction   at  the  PT  Tenaga Kampar  concession  area are: bintangur  (Callophyllum spp.),  medang  (Litsea  spp.), and punak  (Tetramerista glabra Miq.), comprising  32% of the total amount  of wood used in the  construction.Both  companies  made  efforts  to onlv  use durable  wood  species,  however,  such  species are scarce.  
PENILAIAN JUMLAH PENGGUNAAN TRUK ANGKUTAN DI DUA PERUSAHAAN HUTAN DI SUMATERA BARAT Dulsalam Dulsalam
Jurnal Penelitian Hasil Hutan Vol 6, No 8 (1990): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1990.6.8.493 - 499

Abstract

A  study   on  the productivity  of  logging trucks  at  two  forest  companies  was done  in 1984, and  the result  is reported in  this article. Four logging  trucks  used by PT Ragusa  and  five by PT Pasar Besar were selected  randomly to study transport time and load  volumes  through work  time  study. The  purpose is to find out the optimum number of  trucks  suitable to transport logs from the forests to log ponds, processing places or other  distribution  point.  The result shows  that:Isuzu  TWD 20 trucks  were used to transport  logs at the  two forest  companies.The average log volume  per  and  trip  transportation at PT  Ragusa and PT Pasar Besar were  15.20 m3 and 12.84  m3, respectively.Average productivity at PT Ragusa and PT Pasar Besar were 45.6 m3/day  and 25.68  m3/day, respectively.Logging truck productivities were possibly influenced by load volumes and transport  distance.The  number of  logging  trucks  actually urged  in  hauling  logs at PT  Ragusa and  PT Pasar Besar were  5 and 11 units, respectively. Procurement of  new or reparation  of  idle  logging trucks  is strongly recommended.
UJI COBA PENGELUARAN KAYU DI HUTAN TANAMAN PULAU LAUT DENGAN SISTEM KABEL LAYANG P3HH20 YANG DISEMPURNAKAN Dulsalam Dulsalam; Djaban Tinambunan
Jurnal Penelitian Hasil Hutan Vol 20, No 4 (2002): Buletin Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2002.20.4.313-331

Abstract

log extraction in undulating forest areas needs special attention. Forest Products Research Centre has made improvement on P3HH20 skyline system designed for extracting log on undulating area. The equipment consists of three main parts such as power machine unit, wire rope and its auxillary and carriage intended to guide log movement. At the first time, the capacity of the equipment was only 0.308 m3/round trip. In 1998, the equipment was improved and then in 1999 was tried to extract logs in forest plantation of PT Inhutani II. Pulau Laut. South Kalimantan. The choice of the location was done purposively. The objective is to prove whether the impoved P3HH20 skyline system is suitable for extracting log in plantation forest area having undulating terrain. The research results showed that:1. The use of improved P3HH20 skyline cable system for log extraction in plantation forest Pulau Laut provides promising suitability with still relatively low productivity,2. log diameter extracted ranged from 17 to 43 cm with an average of 23 cm while log length extracted ranged from 8 m to 12 m with an average of 11 m.3. log volume extracted varied from 0.026 to 0.309 m3/round trip with an average of 0.160 m3/round trip.4. Effective log extraction productivities ranged from 1.404 to 2.810 m3 (hour with an average of 1.980 m3/hour while the total log extraction productivities varied from 0.485 to 1.080 m3/hour with an average of 0.885 m/hour.5. The average of log extraction cost was Rp 23.572/m3.6. To increase log extraction productivity. it is suggested that further improvement on ballast and endless cable need to be done. as well as further trial infield operations.
EFISIENSI PENGANGKUTAN DAN MUAT BONGKAR KAYU DI SUATU PENGUSAHAAN HUTAN DI KALIMANTAN TENGAH Dulsalam Dulsalam; Arifin Suzanto
Jurnal Penelitian Hasil Hutan Vol 15, No 1 (1997): Buletin Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1997.15.1.7-17

Abstract

Penelitian efisiensi dan muat bongkar kayu telah dilakukan di satu HPH di Kalimantan Tengah pada tahun 1994. Tujuan penelitian adalah untuk mendapatkan informasi tentang eflsiensi kegiatan pengangkutan dan muat-bongkar kayu guna meningkatkan produktivitas kerja. Data volume kayu yang diangkut, dimuat dan dibongkar serta waktu kerja pengangkutan, muat dan bongkar dikumpulkanDari hasil pembahasan dapat disimpulkan bahwa rata-rata pengangkutan kayu oleh, kelompok truk A dan truk B adalah 784,09 m3/jam dengan efisiensi sebesar 53,22% dan 987,87 m3/jam dengan efisiensi sebesar 57,71%. Selain itu rata-rata muat bongkar adalah 12,82  m3m/menit dengan tingkat efisiensi sebesar 81,88% dan 73,73 m3m/menit dengan tingkat efisiensi sebesar 56,04%. Untuk meningkatkan produktivitas ddan efisiensi kegiatan pengangkutan, muat dan bongkar kayu dapat dilakukan melalui persiapan masing-masing kegiatan yang memugkinkan kegiatan tersebut dapat berjalan dengan baik.
Co-Authors Apul Sianturi Arifin Suzanto Djaban Tinambuman Djaban Tinambunan Djaban Tinambunan Ishak Sumantri Ishak Sumantri Sumantri Jurnalis Thaib M Sinaga Machfudh Machfudh Maman M Idris osly rachman Rahardjo S Suparto Soenarno Soenarno Sona Suhartana Sukadaryati Sukadaryati Sukanda Sukanda Wesman Edom Wesman Endom Yayan Sugilar Yuniawati Yuniawati Zakaria Basari