Big Bud 440
Traduction française indisponible ; contenu anglais affiché.
Années de production: 1987–1989
Sources et preuves par champ
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Engineering & Capability Benchmark
Specific output, tractive ratio, and segment percentile
Caractéristiques du moteur et de la puissance
- Modèle du moteur
- Komatsu SA6 D140
- Carburant
- Diesel
- Puissance nominale
- 440 hp
- Rated PTO Power
- N/A (Big Bud specification)
- Cylindres
- 6
- Cylindrée
- 15.2 L (930 ci)
- Alésage / course
- 5.51x6.50 inches 140 x 165 mm
- Régime nominal
- 2100 RPM
- Capacité d’huile moteur
- N/A
- Capacité de liquide de refroidissement
- N/A
Maintenance picks for the 440
Filters, oil and common wear parts for this model.
Caractéristiques de transmission et de châssis
- Type de transmission
- Full power shift (12F/2R)
- Rapports (avant / arrière)
- 12 avant / 2 arrière
- Système d’entraînement
- 4WD
- Empattement
- N/A
- Pneu avant
- N/A
- Pneu arrière
- N/A
- Débit hydraulique
- N/A
- Attelage arrière
- N/A
Implement Draft & Ballast Matcher
Simulate draft resistance, drawbar power transfer, and optimal axle weight distribution for Big Bud 440.
Theoretical draft formula suggests 59,400 lbs. Official manufacturer GVWR is unrecorded for this catalog entry, so target weight is constrained to an engineering structural estimate (~135% of base operating weight) to prevent chassis overload.
Engine demand (529.9 HP) exceeds rated power (440 HP). Reduce working speed by 1.0-1.5 mph or reduce working width.
Tractor is currently light for this heavy draft tool. Add ~5443 kg (12,000 lbs) ballast to prevent tire slip and premature wear.
Target ballast is capped at 52,000 lbs based on structural engineering estimate (~135% base weight; official manufacturer GVWR unrecorded). Avoid adding excess ballast beyond this benchmark to protect axle bearings and chassis.
Instant Used Market Valuation Projector
Algorithmic resale estimate for Big Bud 440 (1987)
Direct Segment Rivals & Showdowns
Head-to-head match-ups calibrated by horsepower and era
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Comparer des machines similaires
Big Bud
USA • 30 Models
Big Bud Tractors Inc. emerged from the Wagner tractor dealership in Havre, Montana in 1961, establishing itself as a pioneering force in the heavy-duty tractor market. The company quickly gained recognition for its innovative approach, producing high-horsepower tractors designed for industrial applications. Big Bud's tractors were distinguished by their custom-built frames and the use of powerful industrial engines, setting new standards for performance and durability in the agricultural machinery industry. The company introduced several groundbreaking features, including tilt cabins and a skid system for engine removal, which further cemented its reputation for engineering excellence. Despite its innovative spirit and strong market presence, Big Bud faced challenges in the late 1980s, leading to its acquisition by Messner Brothers in 1985. Under new ownership, the company continued to operate but eventually ceased production in 1992, marking the end of an era for this iconic American tractor manufacturer.
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