【文章內(nèi)容簡介】 are from 5~10 tons’ capacity. 當(dāng)選擇用于常見貨物吊運(yùn)的經(jīng)濟(jì)性時(shí)，單一貨物最大和平均起重量是必須考慮的因素。如果， 60 噸位的起吊頻率極低， 20 噸位的起吊也非常少，那么就沒有理由購置這一噸位的起重機(jī)。目前，最常用的起重機(jī)起重量為 5 到 10 噸。 Mobile Cranes 移動(dòng)式起重機(jī) The twoaxle mobile crane sector has undergone a radical reappraisal in recent years. What started off as a “ mini crane” concept in Japan to cope with that country’ s acute site and road congestion about five years ago ultimately blossomed into Tadamo Government sponsored Grevo “ concept crane of the future”has now taken root in Europe. 近年來 ， 兩軸的移動(dòng)起重機(jī)行業(yè)經(jīng)歷了一個(gè) 激烈的變革 。 它最早發(fā)源于 日本為 應(yīng)對(duì) 本 國的 嚴(yán)重的 站點(diǎn)和道路擁堵 而發(fā)展的 “迷你起重機(jī) ”， 大約五年前最終發(fā)展成 “ Tadamo” —— 政府贊助 的 Grevo”概念起重機(jī)的未來 ”。 而現(xiàn)在 它 在歐洲扎根。 The chief pioneer of the twoaxle rethink in Europe is monly held to be Compact Truck of Switzerl and Spezialmaschinen of Germany. Although single cab two axle mobile cranes are not entirely newboth Coles and Gottwald made cranes in years gone by even rival manufacturers secretly admit to be being impressed by Compact Truck’ s CT2 hydrostaticdrive mobile crane, although some question its economic viability in a world of low hireout rates. Compact Truck is out to prove the sceptics wrong, however, and after quietly building up rental fleets in eastern Germany, sales have now taken off this for the CT2 abroad with around 130 units in current operation around the world. 在歐洲 ，反思雙軸式的 首席先鋒是 瑞士的 緊湊型車 和 德國 Spezialmaschinen。雖然單 駕駛室 兩軸移動(dòng)起重機(jī)不是全新的 ——但近年， Coles 和 Gottwald 使 過去的 起重機(jī) 過時(shí)了 ——雖然 CT2 在 出租率 較 低 的起重機(jī) 世界中 有著 經(jīng)濟(jì)可行性的問題 ，但其 競(jìng)爭(zhēng)對(duì)手 的 制造商 也 秘密承認(rèn)被 CT2 靜壓傳動(dòng)緊湊車的移動(dòng)吊車 所影響。 Unsurprisingly then, Europe’ s big mobile manufacturers have been looking closely at their own ranges. This culminated last month with the launch o Mannesmann Demag’ s 25t AC75. Like the CT2, the AC75 has a single operator/driver’ s cab, and has an automatic transmission. The crane has a width of , clearance height of 3m and is powered by a 156kW diesel engine. GVW in travel mode is 20t. The main boom, which features Demag’ s ovaloid profile design, is 25m long, and tip height with boom extensions is 40m. 然 而 不出所料 ,歐洲的大型 移動(dòng)式起重機(jī) 制造商一直密切關(guān)注自己 行業(yè) 。振臂一呼 ，于 上個(gè)月推出 o Mannesmann Demag’ s 25t AC75。 和一樣CT2,AC75 只有一個(gè) 駕駛室 ,并有自動(dòng)變速器。起重機(jī)寬為 米 ,凈高 3 米 ,有 一個(gè) 156 千瓦柴油發(fā)動(dòng)機(jī)。 最大起重量為 20 t。 大臂有 Demag’ s ovaloid profile 的獨(dú)特設(shè)計(jì)，長 25m，最大提升高度 40m。 One major rental pany to put its faith in the AC75 is Baldwins of the UK, which has ordered ten units to be spread around the pany’ s depots, giving each a machine suitable for crane lire and machine removal and construction duties. Baldwins says the AC75 fills a need for a highly versatile machine giving high utilisation in all sectors of the market. 大型 的租賃公司 ，英國的 Baldwins 表現(xiàn)出對(duì) AC75 的極大信心，購置十臺(tái)分派到公司的所有租賃點(diǎn) ,并讓所有起重機(jī)運(yùn)用 于起重機(jī)里拉 、 機(jī)器移除和 市政建設(shè)。 Baldwins 說 ,AC75 滿足了 高利用率板塊 對(duì) 高度通用機(jī) 的需求 。 Nevertheless, no other crane manufacturer has yet to put the CT2’ s hydrostatic drive concept into mercial productiona feature more monly found on crawler cranes, excavators, and forklift trucks which normally have a maximum speed of 40km/h or less. Compact Truck says the CT2 is the first hydrostaticdrive vehicle suitable for motorway driving, with a maximum speed of 80 km/h. The pany claims to have developed a system that prevents the hydraulic oil overheating. Only onefifth of the oil capacity is used for driving and an oil cooling system has been added for work in tropical climates, such as Thailand. 然而 ,還 沒有其他起重機(jī)制造商把 CT2 靜液壓傳動(dòng)的概念到商業(yè)化生產(chǎn) ——這一 功能更常出現(xiàn)在履帶起重機(jī)、挖掘機(jī)、叉車 ，這些 通常最大速度 只有 40 公里 /小時(shí)或更少 的機(jī)械中 。緊湊型車 ，比如， CT2 是第一 臺(tái) 靜液壓驅(qū)動(dòng) ， 適合高速公路駕駛 ,最高時(shí)速 達(dá) 80 公里 /小時(shí) 的車輛 。該公司聲稱已經(jīng)開發(fā)出一種 可 防止液壓油過熱 的 系統(tǒng)。在熱帶氣候 （ 如泰國 ）工作的機(jī)械， 只有五分之一的石油產(chǎn)能是用來駕駛和油冷卻系統(tǒng)。 The use of hydrostatic technology allows much more freedom of design, particularly with placement of the diesel enginewhich is situated at the rear of the vehicle. The engine, together with the pumps, acts as a counterweight at the rear of the s