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All Journal Jurnal Penelitian Hasil Hutan JURNAL ANALISIS KEBIJAKAN KEHUTANAN Jurnal Ilmu dan Teknologi Kayu Tropis Jurnal Penelitian Hasil Hutan
Osly Rachman
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Energy Materials Science & Nanotechnology

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PENGARUH POLA PENGGERGAJIAN DAN SUDUT SAYAT TERHADAP RENDEMEN DAN PRODUKTIVITAS PENGGERGAJIAN KAYU NIBUNG (ONCOSPERMA TIGILLARIUM) Osly Rachman; Dede Rohadi
Jurnal Penelitian Hasil Hutan Vol 4, No 1 (1987): 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.1987.4.1.31-34

Abstract

Nibung (Oncosperma  tigillarium) is a member of palm family which has a good potential for  utilization. An experiment to find out the best sawing pattern and hook angle of saw blade for  better recovery and sawing productivity was conducted. Two sawing patterns (live sawing and sawing around)  and two hook  angles (20 and 27 degrees were applied).The results indicated that sawing around pattern produced higher recovery of hard and medium  wood than live sawing as much as 8%, while the 27° of  hook  angle produced higher productivity than 20°  angle as much  as 0.30  m2/min.
PENGARUH SUDUT KERAT DAN BAGIAN BATANG TERHADAP SIFAT PENGGERGAJIAN KAYU KELAPA (Cocos nucifera. L.) Osly Rachman
Jurnal Penelitian Hasil Hutan Vol 3, No 2 (1986): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2327.218 KB) | DOI: 10.20886/jphh.1986.3.2.28-32

Abstract

Eighteen green cocowood samples, 3 m in length each were sawn into 3 cm thick boards. Trunk samples consisted of two groups, butt logs and top logs. Each group was sawn with 3 degrees of hook angle, namely 19,22 and 25 degrees. Sawing properties, i.e., power consumption, sawing productivity and lumber recovery were related with hook angle and trunk portion. The results reveal that trunk portion and hook angle had a significant effect on power consumption. The butt logs consumed power higher than top logs. Trunk portion had no effect on sawing productivity but greater hook angle tends to increase the productivity. Hook angle and trunk portion had no effect on recovery.
SIFAT PEMESINAN 34 JENIS KAYU DARI MALUKU & SULAWESI TENGAH Osly Rachman; Jamal Balfas
Jurnal Penelitian Hasil Hutan Vol 2, No 3 (1985): 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.1985.2.3.27-36

Abstract

The machining properties of  34 wood  species  tested according to the ASTMD 1666-64  procedure are presented in this paper.  The machining  properties studied  were planing,  shaping,  turning,  sanding,  boring and  mortising.Some of  the species  tested  (such as suling, gohimahou etc.)  are consistently better  than average in most  respects  and some  are consistently poorer  (such as telor, andolia etc.).  Some  are good  in one property or two and poor in others.  These differences are probably due to differences in the specific gravity  values of  each species
SIFAT PEMESINAN 36 JENIS KAYU DARI DAERAH IRIAN JAYA Osly Rachman; Jamal Balfas
Jurnal Penelitian Hasil Hutan Vol 4, No 1 (1987): 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.1987.4.1.1-11

Abstract

This article presents test results of the machining properties  of 36 wood species from  Manokwari,  lrian Jaya.  The test method used was the modified  ASTM D-1666 described in Forest Products  Research Institute Report No.160 (1982). In most of the species 25 or more samples  were available for test. All test material was dried to equilibrium Moisture content condition (15 to 18% moisture  content). The machining properties that were investigated were planing, shaping, boring,   mortising, turning and sanding.Some of  the species tested are consistenly better than average in most respects. The species have good machining properties are sehiega.koesigoro, seyam, matoa, kerbai and petian.   Whereas some species, such as fofo, sehiye, wafut, basuoh,  serakka  and  bimiek  are consistently poorer. The others species are good  in some properties  and fair  or poor in others.
KAJIAN EFISIENSI PEMANFAATAN KAYU MERBAU DAN RELOKASI INDUSTRI PENGOLAHANNYA Bagian 1: Propinsi Papua Sebagai Penghasil Kayu Merbau dan Tujuan Relokasi Jamaludin Malik; Osly Rachman; Jamal Balfas; Achmad Supriadi
Jurnal Analisis Kebijakan Kehutanan Vol 2, No 1 (2005): JURNAL ANALISIS KEBIJAKAN KEHUTANAN
Publisher : Centre for Research and Development on Social, Economy, Policy and Climate Change

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (16078.58 KB) | DOI: 10.20886/jakk.2005.2.1.59-76

Abstract

Kayu Merbau (Intsia spp.) pernah menjadi isu penting karena Pemerintah Propinsi Papua meminta dispensasi dari Pemerintah Pusat untuk mengekspor log kayu tersebut. Argumentasi yang dikemukakan adalah kekerasan kayu tersebut, sehingga tidak bisa diolah di dalam negeri. Apabila tidak diekspor berarti sumberdaya alam yang dimiliki Propinsi Papua tidak dimanfaatkan secara optimal untuk pembangunan daerah. Sementara itu, Inpres No. 7 tahun 2002 menawarkan paket relokasi industri dari wilayah Jawa Timur ke Papua. Untuk mengevaluasi kondisi obyektif pemanfaatan kayu merbau dan urgensi relokasi industrinya, dilakukan kajian ilmiah komprehensif yang meliputi potensi bahan baku, alokasi penggunaan, tenaga kerja dan peraturan yang terkait dengan pemanfaatan kayu merbau. Tulisan ini dibagi menjadi dua bagian. Bagian pertama, kajian difokuskan terhadap wilayah Papua sebagai sumber bahan baku dan tempat tujuan relokasi industri pengolahan kayu merbau, mencakup pengumpulan data dilakukan melalui observasi dan wawancara dengan instansi terkait di wilayah Jakarta, Banten dan Papua. Bagian kedua akan disajikan pada tulisan terpisah, yang akan mengkaji industri kayu merbau di Jawa Timur dan sekitarnya yang akan direlokasi. Hasil observasi di Papua diketahui bahwa potensi kayu merbau yang dapat dimanfaatkan masih cukup 3besar , yaitu 2,662 juta m/tahun. Untuk menunjang pengelolaan hutan lestari, perlu dilakukan perhitungan ulang atas potensi kayu. Di Papua terdapat 9 industri besar yang mengolah kayu merbau dan 66 unit industri kecil/menengah yang mengalami kekurangan bahan baku kayu merbau. Sebagian besar industri mengolah kayu merbau menjadi kayu gergajian, S2S dan S4S. Banyak kilang penggergajian kecil di areal hutan menggergaji kayu bulat merbau menjadi balok kasar dengan menggunakan gergaji rantai. Evaluasi terhadap data dan informasi yang tersedia dapat disimpulkan bahwa relokasi industri bukan merupakan alternatif yang tepat. Pembinaan yang lebih tepat adalah peningkatan kemampuan teknis industri dan pemasaran kayu merbau di Papua, sehingga mampu memproduksi barang jadi (finished products) dan langsung dapat memasarkannya.
PENGARUH POLA PENGGERGAJIAN DAN SUDUT SAYAT TERHADAP RENDEMEN DAN PRODUKTIVITAS PENGGERGAJIAN KAYU NIBUNG (ONCOSPERMA TIGILLARIUM) Osly Rachman; Dede Rohadi
Jurnal Penelitian Hasil Hutan Vol 4, No 1 (1987): 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.1987.4.1.31-34

Abstract

Nibung (Oncosperma  tigillarium) is a member of palm family which has a good potential for  utilization. An experiment to find out the best sawing pattern and hook angle of saw blade for  better recovery and sawing productivity was conducted. Two sawing patterns (live sawing and sawing around)  and two hook  angles (20 and 27 degrees were applied).The results indicated that sawing around pattern produced higher recovery of hard and medium  wood than live sawing as much as 8%, while the 27° of  hook  angle produced higher productivity than 20°  angle as much  as 0.30  m2/min.
PENGARUH SUDUT KERAT DAN BAGIAN BATANG TERHADAP SIFAT PENGGERGAJIAN KAYU KELAPA (Cocos nucifera. L.) Osly Rachman
Jurnal Penelitian Hasil Hutan Vol 3, No 2 (1986): 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.1986.3.2.28-32

Abstract

Eighteen green cocowood samples, 3 m in length each were sawn into 3 cm thick boards. Trunk samples consisted of two groups, butt logs and top logs. Each group was sawn with 3 degrees of hook angle, namely 19,22 and 25 degrees. Sawing properties, i.e., power consumption, sawing productivity and lumber recovery were related with hook angle and trunk portion. The results reveal that trunk portion and hook angle had a significant effect on power consumption. The butt logs consumed power higher than top logs. Trunk portion had no effect on sawing productivity but greater hook angle tends to increase the productivity. Hook angle and trunk portion had no effect on recovery.
SIFAT PEMESINAN 34 JENIS KAYU DARI MALUKU & SULAWESI TENGAH Osly Rachman; Jamal Balfas
Jurnal Penelitian Hasil Hutan Vol 2, No 3 (1985): 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.1985.2.3.27-36

Abstract

The machining properties of  34 wood  species  tested according to the ASTMD 1666-64  procedure are presented in this paper.  The machining  properties studied  were planing,  shaping,  turning,  sanding,  boring and  mortising.Some of  the species  tested  (such as suling, gohimahou etc.)  are consistently better  than average in most  respects  and some  are consistently poorer  (such as telor, andolia etc.).  Some  are good  in one property or two and poor in others.  These differences are probably due to differences in the specific gravity  values of  each species
SIFAT PEMESINAN 36 JENIS KAYU DARI DAERAH IRIAN JAYA Osly Rachman; Jamal Balfas
Jurnal Penelitian Hasil Hutan Vol 4, No 1 (1987): 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.1987.4.1.1-11

Abstract

This article presents test results of the machining properties  of 36 wood species from  Manokwari,  lrian Jaya.  The test method used was the modified  ASTM D-1666 described in Forest Products  Research Institute Report No.160 (1982). In most of the species 25 or more samples  were available for test. All test material was dried to equilibrium Moisture content condition (15 to 18% moisture  content). The machining properties that were investigated were planing, shaping, boring,   mortising, turning and sanding.Some of  the species tested are consistenly better than average in most respects. The species have good machining properties are sehiega.koesigoro, seyam, matoa, kerbai and petian.   Whereas some species, such as fofo, sehiye, wafut, basuoh,  serakka  and  bimiek  are consistently poorer. The others species are good  in some properties  and fair  or poor in others.
Pengaruh Umur Panen Pinus Hutan Tanaman terhadap Kualitas Kayu Pertukangan Effect of Harvesting Age of Pine from Forest Plantation on Quality of Wood Construction Materials Nurwati Hadjib; Osly Rachman
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 7, No 1 (2009): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (209.715 KB) | DOI: 10.51850/jitkt.v7i1.236

Abstract

Research on some properties of wood Pine (Pinus merkusii Jungh et de Vriese) to determine technical rotation for wood construction materials matched to the technical requirements. Pine wood investigated originated from KPH Sukabumi, West Java, from site index III and age of 17, 21, 23, 27 and 28 years. The results showed that morphology, diameter at breast height (DBH), sawing recovery, volume, veneer recovery and bonding strength were not significantly different at 95% confidence level. DBH and cylindricity tend to increase from age of 17 years until 27 years and decrease at 28 years in parabolic. The maximum DBH reach at 25 years, while cylindricity at 26 years. The sawing recovery tends to increase from 17 to 21 years, decrease at 23 years and increase at 27 years. Screw withdrawal resistance of five age level wood tested were significantly different. The relationship between age and wood properties tested tends to the same pattern, paraboloid, while volume and veneer recovery were linear. Differentiated of these equation showed that maximum DBH reach at age of 25, sawing recovery 28 years, maximum density and screw withdrawal resistance at 23 years, bonding strength and wettability at 22 years. Based on its machining properties, wood from 17-21 years belong to class II, and class I for 23 ~ 28 years.
Co-Authors Achmad Supriadi Dede Rohadi Jamal Balfas Jamaludin MALIK Nurwati Hadjib