As pontuações são marcas relativas 0–100 neste atlas. Para navegar, não como especificação de engenharia.
Ultima revisao Fontes e creditosCréditos de mídiaMetodologia
Respostas curtas
Qual autoridade ou corredor local importa para este tipo?
Comece pela lente local: homologação, licenças e hubs — não uma checklist global.
Is this a buying guide?
No. Tool-Lifes /vehicles is an educational atlas. It explains history, systems and culture without affiliate rankings.
Are the scores official?
No. The six scores are relative editorial 0–100 marks across the 48 types on this site.
Where do the photos come from?
Lead images resolve from Wikimedia Commons via Wikipedia titles on the English masters, with licences recorded on the credits page.
Why metric units?
Metric is the default. Regional notes (US customary, local brand culture) appear in culture and market chapters.
How is this different from a wiki article?
Each type gets seven fixed-depth chapters, comparable scores and cross-type labs — structured for browsing, not a single freeform page.
Em Trator, propulsão, estrutura, controlo e segurança partilham o mesmo envelope operacional.
Os medidores resumem margem estrutural, manutenibilidade e fatores humanos em pontuação relativa.
Sistemas
Estrutura
Trator: Steel frame carries engine mass; Category I–IV hitch links implement lift arms and top link to mounted tools.
Propulsão
Trator: Flywheel PTO spins at rated RPM to drive mowers, balers, and pumps through guarded universal joints.
Energia
Trator: Hydrostatic pedals give infinite speed control; powershift transmissions shuttle ranges for field work.
Controlo
Trator: Electronic hitch control and ISOBUS terminals adjust depth, rate, and section shutoff on planters.
Interface
Trator: Roll-over protective structure and interlocked seat sensor cut PTO if operator leaves seat.
Segurança
Trator: Front weights and fluid ballast tune traction; tire pressure sets soil compaction footprint.
Medidores relativos
Pontos quentes
Trator: PTO guard & shaft
Trator: Missing guards wrap clothing around spinning shafts—a common entanglement fatality.
Trator: Hydraulic hose bursts
Trator: Pinhole leaks inject fluid under skin; aged hoses fail at crimp fittings.
Trator: Three-point hitch pins
Trator: Worn pins allow implement sway and sudden drop on uneven ground.
Trator: Air cleaner restriction
Trator: Dusty fields clog filters and derate power before turbo damage.
Trator: Clutch pack glaze
Trator: Slipping powershift clutches overheat and lose pull on heavy tillage.
Materiais
Trator: Gray cast iron axle housings
Trator: Massive housings spread implement reaction loads into the frame.
Trator: Hardened PTO splines
Trator: Splined shafts tolerate cyclic torque from balers and augers.
Trator: Biodegradable hydraulic fluid
Trator: Some fleets use env-friendly fluid for leaks near waterways.
Trator: Radial ag tires (IF/VF)
Trator: High-flexion carcasses carry load at lower pressure to reduce compaction.
Keep exploring
More in Estrada
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Da bomba à rede — a virada do turismo a bateria.
Geral 78 🏍️Motocicleta
Transporte de duas rodas: scooters, esportivas e touring.
Geral 67 🚌ÔniÔnibus
Veículos compartilhados que movem cidades — do diesel ao BRT elétrico.
Geral 69 🚛Caminhão
Bestas de carga da estrada, de pickups a carretas.
Geral 57 🚲Bicicleta
Duas rodas humanas — o veículo pessoal mais eficiente.
Geral 68 🚑Ambulância
Veículos de emergência médica que transformam minutos em margem de sobrevivência.
Geral 63 🚒Caminhão de bombeiros
Bombas, escadas e resgate até ao incêndio.
Geral 56 🏎️Fórmula 1
Monolugares de rodas abertas no limite da aero e híbridos.
Geral 64 🚜Bulldozer
Tracked construction crawlers with a front blade — grading, pushing and site prep at low speed and high tractive effort.
Geral 44 🗑️Garbage truck
Municipal refuse collectors — rear loaders, side loaders and automated arms that keep cities clean on fixed routes.
Geral 55