Sim­plic­ity, strength and dura­bil­ity hall­marks of Pon­sse har­vester heads

Australian Forests and Timber - - Head-Lines -

Pon­sse has a long his­tory of mak­ing har­vester heads. The very first were man­u­fac­tured in the 1980s and, ever since, each har­vester head model has been de­signed with a fo­cus on ef­fi­ciency, dura­bil­ity and ease of main­te­nance. Each model is char­ac­ter­ized by its sim­ple and strong struc­ture. Pon­sse har­vester heads are built to meet the de­mands of the rough­est con­di­tions and thanks to the wide range, the man­u­fac­turer can of­fer so­lu­tions for wheeled har­vesters and track-based ma­chines.

The Pon­sse har­vester head range of­fers 11 mod­ern har­vester head mod­els, which are suit­able for var­i­ous uses from thin­ning to fi­nal felling and pro­cess­ing. Their high feed power and fast eco­nom­i­cal saw­ing re­sult in ex­treme ef­fi­ciency. As each har­vester head can be ad­justed ac­cord­ing to tree and base ma­chine prop­er­ties, work­ing is easy and the har­vester head has a long service life. More­over,

Pon­sse´s in-house de­vel­oped and man­u­fac­tured Opti in­for­ma­tion sys­tem guar­an­tees mea­sure­ment ac­cu­racy in cut­ting. “All our har­vester heads of dif­fer­ent sizes are also suit­able for the multi-stem­ming of en­ergy wood and pulp­wood with­out any op­tional equip­ment,” says Janne Lo­po­nen, Prod­uct Man­ager for Pon­sse Har­vester Heads. “This elim­i­nates ad­di­tional costs, ser­vic­ing and weight. The frames of our har­vester heads are machined af­ter the weld­ing assem­bly. This guar­an­tees the high­est qual­ity with ex­cel­lent pre­ci­sion.” Durable hoses, well-de­signed hose rout­ing and strong de­limb­ing knives are im­por­tant fea­tures of Pon­sse har­vester heads. In ad­di­tion, the au­to­matic Pon­sse CT+ chain tensioner and the grease lu­bri­ca­tion sys­tem for the saw chain are avail­able for all har­vester head mod­els ex­cept H10 where saw unit is Hult­dins 300.

Stronger ver­sion

“For H7 and H8 mod­els a stronger HD ver­sion is avail­able for track-based har­vester in­stal­la­tions and can also be used in larger wheel based har­vesters. The H8, H8HD and H10 mod­els can be equipped with a top saw and find end sen­sor for even more ef­fi­cient log­ging.”

Lo­po­nen is very proud of the lat­est model in the Pon­sse har­vester head fam­ily, the H8 HD, which is a heavy duty har­vester head for felling and pro­cess­ing of hard­wood and soft­wood in tough con­di­tions. Thanks to the mod­ern and optimized de­sign of H8 HD, the weight of the har­vester head is low, mak­ing it pos­si­ble to use it on the Pon­sse Bear, wheel-based har­vester and most track-based ma­chines. Low weight also en­ables lower fuel con­sump­tion and

eas­ier han­dling, es­pe­cially in pro­cess­ing op­er­a­tions. “Strong grip, pow­er­ful feed­ing and fast saw­ing are packed in a ro­bust and re­li­able pack­age that can be fit­ted into var­i­ous tracked car­ri­ers,” Lo­po­nen said. The H8 HD has a wide feed roller ge­om­e­try that sup­ports even the largest stems with feed rollers in­stead of de­limb­ing knives.

Im­proved fuel econ­omy

This al­lows a lower pres­sure to be ap­plied by the knives, im­prov­ing fuel econ­omy and feed­ing speed as well as mea­sur­ing ac­cu­racy. The H8 HD is avail­able with a top saw for pro­cess­ing curvy trees with big branches. Pro­ces­sor de­limb­ing knives are longer than stan­dard knives for pick­ing logs more eas­ily from a pile, Lo­po­nen added. The other new­comer, the H10 pro­cess­ing head, of­fers un­beat­able Pon­sse qual­ity and pro­duc­tiv­ity to a new size class. The H10 is de­signed and built for heavy-duty pro­cess­ing work in the hard­est con­di­tions. Ro­bust struc­ture, strong grip and pow­er­ful feed­ing guar­an­tee high ef­fi­ciency and re­li­a­bil­ity through the years. Mean­while, the Pon­sse Opti is an en­tire prod­uct fam­ily of for­est ma­chine in­for­ma­tion sys­tems. It cov­ers har­vesters, for­warders and loose har­vester heads in­stal­la­tions and can con­sist of CTL mea­sur­ing, weight scal­ing, re­port­ing and many other fea­tures. Ap­pli­ca­tions for wood pro­cure­ment man­age­ment are also avail­able. The ba­sic prin­ci­ple be­hind the Opti in­for­ma­tion sys­tem is user friend­li­ness.

“We are aware of im­por­tance of the op­er­a­tor skills; there­fore, we have cre­ated the sys­tem where the op­er­a­tor doesn’t need to adapt to the con­trol sys­tem – the con­trol sys­tem is adapted for the op­er­a­tor,” Lo­po­nen said. “For­est ma­chines must be ef­fec­tive, re­li­able, and ca­pa­ble of mea­sur­ing wood ac­cu­rately, and they must also be easy to use and en­vi­ron­men­tally friendly. The ful­fil­ment of th­ese re­quire­ments can be greatly en­hanced with the help of in­for­ma­tion tech­nol­ogy. The cut­ting sug­ges­tion made by the mea­sure­ment de­vice en­sures the op­ti­mal us­age of the raw ma­te­rial, leav­ing the ma­chine op­er­a­tor free to con­cen­trate on the qual­ity of the tree.” To help the op­er­a­tor to fo­cus on what is es­sen­tial and im­prove work­ing meth­ods,

Pon­sse has also de­vel­oped EcoDrive soft­ware, which in­di­cates in real-time whether the ma­chine is be­ing con­trolled eco­nom­i­cally and ef­fi­ciently. Hanna Vilk­man, Prod­uct Man­ager for In­for­ma­tion Sys­tems: “Ef­fi­cient and eco­nomic wood pro­cure­ment is in the best in­ter­ests of all par­ties in the pro­cure­ment chain, that is, the for­est owner, the con­trac­tor, the for­est com­pany, and the na­ture of the for­est.” Pon­sse for­est ma­chines, har­vester heads and in­for­ma­tion sys­tems are widely avail­able from Pon­sse deal­ers and service cen­ters around the world. Pon­sse is a pi­o­neer­ing de­vel­oper of me­chan­i­cal timber-har­vest­ing based on the cut-to-length method. “We only man­u­fac­ture forestry ma­chines so our fo­cus is clear, at Pon­sse we put cus­tomers al­ways first and we aim to be the pre­ferred part­ner in our in­dus­try.

All our har­vester heads of dif­fer­ent sizes are also suit­able for the mul­ti­stem­ming of en­ergy wood and pulp­wood with­out any op­tional equip­ment.

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