New gen­er­a­tion for­est har­vester fi­nal­ist for 2015 Swedish Steel Prize

DEMM Engineering & Manufacturing - - NEWS -

Fin­nish com­pany Pon­sse Plc gave its de­sign­ers a free hand to cre­ate a new gen­er­a­tion of for­est har­vester. The re­sult was the Pon­sse Scor­pion one of four fi­nal­ists for this year’s Swedish Steel Prize. Built around the op­er­a­tor with a fo­cus on er­gonomics, high-strength steels en­abled Pon­sse to im­prove both har­vester per­for­mance and con­trol.

For­est har­vesters usu­ally fea­ture a dou­ble frame con­struc­tion with a crane boom mounted on the front or to the side of the op­er­a­tor cabin. The cabin is usu­ally static and the boom in front of the op­er­a­tor makes for poor vis­i­bil­ity. The Pon­sse Scor­pion fea­tures a sym­met­ri­cal crane boom, where the op­er­a­tor sits at the cen­tre of all move­ments. It of­fers the op­er­a­tor to­tal vis­i­bil­ity and a com­fort­able and ef­fi­cient work­ing en­vi­ron­ment.

Per­fect vis­i­bil­ity in all di­rec­tions with less side­ward swing­ing in the cabin dur­ing op­er­a­tion makes the driver’s work es­sen­tially eas­ier and safer, and im­proves har­vest­ing qual­ity. The Scor­pion is more en­vi­ron­men­tally friendly as a re­sult of its long main­te­nance in­ter­vals, low-emis­sion en­gine tech­nol­ogy and low sur­face pres­sure. The har­vester’s weight is di­vided evenly onto eight wheels.

Strenx 700 MC Plus high-strength steel is in the two-arm lift boom over the op­er­a­tor cabin to­gether with steel casts. For the frame, Strenx 700 was cho­sen due to the high loads, stresses and re­sis­tance to fatigue. High-strength steel, e.g. Strenx 700, is also used in the chas­sis, al­low­ing the unique three-part de­sign. The har­vester head is made of wear-re­sis­tant Har­dox 500, which pro­vides good abra­sion re­sis­tance.

The pow­er­ful crane is easy to con­trol, the cabin is quiet and the work­ing po­si­tion is op­ti­mized for com­fort. By uti­liz­ing high­strength steels, the over­all weight of the har­vester is lower, which helps ma­noeu­vra­bil­ity in rough ter­rain. Lower weight al­lowed more bear­ings to be added, which gives the Pon­sse Scor­pion its sta­bil­ity. Fur­ther­more, fuel consumption has been re­duced and boom move­ments are faster. The low sur­face pres­sure of the ma­chine is a ben­e­fit when work­ing on soft soils. Pon­sse has patented the crane and cabin ar­range­ment, the triple­frame struc­ture, frame sta­bil­is­ing sys­tem and cabin lev­el­ling en­coder ar­range­ment. All Scor­pion har­vesters are pro­duced at Pon­sse’s pro­duc­tion fa­cil­ity in Fin­land.

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