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Caterpillar RD7

Traduction française indisponible ; contenu anglais affiché.

Années de production: 1935–1940

Puissance moteur
75 HP
—
Cylindrée
13.6 L
Moteur 4 cylindres
Entraînement et châssis
Tracks (Crawler)
Gear (4F/1R)
Poids en ordre de marche
9,534 kg
21,020 lbs

Sources et preuves par champ

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Caterpillar RD7
VLM Verified Authentic
Caterpillar RD7

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Engineering & Capability Benchmark

Specific output, tractive ratio, and segment percentile

Utility & Farmyard Workhorse
Global Tractor Fleet Power SpectrumTop 72% of all indexed machinery
Compact (20 HP)Utility (100 HP)Row-Crop (250 HP)Titans (600+ HP)
Specific Output
5.5 HP/L
Aspiration: Unknown
Traction Ratio
127.1 kg/HP
Heavy ballast for draft pull
PTO Efficiency
—
Mechanical driveline
Hydraulic Flow
Standard
Auxiliary implement ports

Caractéristiques du moteur et de la puissance

Modèle du moteur
Caterpillar
Carburant
Diesel
Puissance nominale
75 hp
Rated PTO Power
N/A (Caterpillar specification)
Drawbar Power @ Rated Engine Speed
78.35 hp (Nebraska OECD Test 2218)
Cylindres
4
Cylindrée
13.6 L (831 ci)
Alésage / course
5.75x8.00 inches 146 x 203 mm
Régime nominal
1000 RPM
Capacité d’huile moteur
N/A
Capacité de liquide de refroidissement
N/A

Maintenance picks for the RD7

Filters, oil and common wear parts for this model.

Caractéristiques de transmission et de châssis

Type de transmission
Gear (4F/1R)
Rapports (avant / arrière)
4 avant / 1 arrière
Système d’entraînement
Tracks (Crawler)
Empattement
N/A
Pneu avant
N/A
Pneu arrière
N/A
Débit hydraulique
N/A
Attelage arrière
N/A
ASABE EP496 Engineering Matcher

Implement Draft & Ballast Matcher

Simulate draft resistance, drawbar power transfer, and optimal axle weight distribution for Caterpillar RD7.

High Draft Working Zone(94%)
CAD DRAFT SCHEMATIC • Wide-Span Field Cultivator
SOIL: Medium Tilled LoamDEPTH: 4"SPEED: 7 MPH94% LOAD
SOIL SURFACE (0.0")SUB-SURFACE PLOW PAN (~14")75 HP◄ 3,129 LBS DRAFT4" DEPTH
DRAWBAR DEMAND: 58.4 HPWIDTH / SIZE: 18 ft Width
ASABE D497.7 Tillage Specific Resistance Formula
Implement Size (ft Width)18 ft Width
18 ft WidthDefault: 4270 ft Width
Tillage / Seeding Depth4 inches (10 cm)
2"Target: 4"6"
Target Operating Field Speed7.0 mph (11.3 km/h)
5 mphRated: 7 mph9 mph
Engine Power Demand vs Rated Output70.4 HP / 75 HP Rated
0%55% (Min Load)60-85% (Sweet Spot)100% (Cap)
Draft Force
3,129 lbs
Drawbar Power
58.4 HP
Target Slip
8% - 12%
Axle Ballast Balance (Twin Track Rubber Belt )Calibrated for Wide-Span Field Cultivator (100 lbs/HP standard)
Target: 7,500 lbs
Front Axle: 62%Rear Axle: 38%
2,109 kg (4,650 lbs)1,293 kg (2,850 lbs)
Ballast Adjustment vs Base:-13,520 lbs (-6,133 kg)
Hourly Diesel Burn
3.1 gal/h
11.7 L/hr (est. $12/h)
Hydraulic Fan Status
Standard Draw
No fan req

Optimal engine load (94%). Tractive efficiency is peaked within standard 8% - 12% slip window.

Tractor exceeds target ballast by 6133 kg. Consider removing wheel weights to reduce soil compaction.

Instant Used Market Valuation Projector

Algorithmic resale estimate for Caterpillar RD7 (1935)

Full Appraisal Tool
Operating Meter Hours3,200 hrs
Mechanical & Physical Condition
Empirical model calibrated against dealer & auction lots
Estimated Fair Market Value
$3,388
Basis: 75 HP • 91 yrs old
Auction / Wholesale
$2,778 – $3,117
Dealer Retail Asking
$3,557 – $3,998
3-Year Projected Resale Curve~5% annual retention decay
Year 2027
$3,219
Year 2028
$3,058
Year 2029
$2,905

Direct Segment Rivals & Showdowns

Head-to-head match-ups calibrated by horsepower and era

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Caterpillar

USA • 49 Models

Caterpillar Inc., commonly known as CAT, is a globally dominant American manufacturer of heavy machinery and industrial equipment. Founded in 1925 through the merger of Holt Manufacturing Company and C.L. Best Tractor Co., Caterpillar quickly established itself as a pioneer in tracked machinery and diesel engine technology. The company's early innovations in crawler tractors revolutionized construction and earthmoving industries, setting the stage for its future dominance. While Caterpillar's primary focus has been on construction, mining, and heavy industrial equipment, the company has also made significant contributions to agriculture. In 1987, Caterpillar re-entered the agricultural market with the introduction innovative Challenger line of rubber-tracked crawlers, which represented a major technological advancement in farm machinery. However, in 2002, Caterpillar made the strategic decision to sell its agricultural division, including the Challenger line, to AGCO, allowing it to concentrate on its core construction and mining equipment business. Today, Caterpillar is recognized as the world's leading manufacturer of construction and mining equipment, with a vast product portfolio that includes engines, industrial turbines, and heavy machinery. The company's commitment to innovation, quality, and global reach is supported by the largest dealer network in the industry, ensuring that Caterpillar equipment is available and supported worldwide. Despite its reduced presence in agriculture, Caterpillar's legacy in the farm equipment sector remains significant, particularly through the technological advancements introduced by the Challenger line.

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