Call 1-888-380-6420

DX300RB-7 Road Builder | Develon

Rebates & Special Offers

View Full Offer

Get as low as 0% for 36 months* or Up to $16,500 cash back* in lieu of financing.

Horsepower
270.9 hp
Operating weight
82,894 lb
Ground reach
34 ft 3 in
Loading height
24 ft 3 in
See full specifications
More specifications
General Info
Condition: Showroom
Manufacturer: Develon
Model: DX300RB-7
Machine Type: Other
Engine
Engine: DL08P
Horsepower: 270.9
Performance
Operating Weight: 82894 lb
Hydraulics
Dimensions
Fuel Tank: 309.1 gal

Description

DX300RB-7 Road Builder | Develon

Purpose-Built for Forestry Applications

The Develon DX300RB-7 road builder is engineered specifically for demanding forestry operations, combining proven excavator performance with specialized features for pioneering, land clearing, and timber management. Increased tractive force allows the machine to travel confidently across uneven or soft terrain while efficiently pushing down trees. A fully guarded upper structure and high-walker undercarriage are built to withstand harsh forestry environments, while heavy-duty track links, double grouser shoes, rock guards, and full-length track guiding guards provide exceptional durability throughout long workdays.

Cab Options for Safety and Visibility

The DX300RB-7 is available with either a standard-height ROPS cab or an optional forestry cab designed to maximize operator protection and visibility. The road builder cab provides an excellent vantage point for pioneering operations while offering outstanding all-around visibility and operator comfort. For more demanding forestry applications, the optional side-entry forestry cab features a guarded polycarbonate front window, polycarbonate side and rear windows, and a rear secondary exit for enhanced operator safety in challenging environments.

Operator Comfort in Demanding Conditions

Designed to keep operators comfortable throughout long workdays, the DX300RB-7 features a spacious cab with increased foot room, excellent visibility, and automatic climate control with adjustable airflow. A heated and cooled air-suspension seat, ergonomic controls, and an intuitive operator layout help reduce fatigue while maintaining productivity in tough working conditions.

Enhanced Visibility for Safer Operation

Excellent visibility is essential for both productivity and jobsite safety. The DX300RB-7 features narrow cab pillars to improve sightlines, along with standard rearview and side-mounted cameras that provide greater awareness around the machine. An optional Around View Monitor (AVM) system offers a comprehensive view of the work area, while a standard rotating beacon increases machine visibility during low-light operation and on active jobsites.

Intelligent Power and Machine Control

The DX300RB-7 utilizes an advanced Mechatronics system that offers four selectable work modes, automatic idle, onboard diagnostics, and simplified machine management through an easy-to-read display. Standard auto shutdown helps reduce unnecessary fuel consumption by automatically shutting off the engine after a preset idle period, while the color LCD monitor displays machine information, maintenance data, fuel consumption, and live camera feeds for improved operator awareness.

Built for Maximum Uptime

Extended maintenance intervals and simplified service access help keep the DX300RB-7 working longer with less downtime. Centralized grease points, wide side access doors for cooling system maintenance, extended-life boom pivot bushings, and a high-capacity engine air precleaner that removes more than 99 percent of airborne particles all contribute to lower maintenance requirements. MY DEVELON fleet management further helps monitor machine health, maintenance schedules, and operating performance to reduce ownership costs.

Versatility for Forestry and Land Clearing

The DX300RB-7 is designed to support a wide range of forestry and site development tasks. Standard coupler piping allows quick integration of compatible attachments, while DEVELON couplers make it easy to switch between buckets, thumbs, and other work tools. This versatility enables operators to efficiently clear felled trees, remove stumps, rough grade terrain, improve drainage, and complete a variety of pioneering applications with a single machine.

Efficient Tier 4 Performance

The DX300RB-7 meets Tier 4 emissions standards using an advanced high-pressure common-rail fuel system combined with cooled exhaust gas recirculation (EGR), a diesel oxidation catalyst (DOC), and selective catalytic reduction (SCR). This emissions system delivers powerful, fuel-efficient performance while meeting today's stringent environmental regulations.

Loan

0%
for up to 36 months*
Financing Available

Lease

Flexible
Aggressive lease payments available. Custom or seasonal payment structures also available.
Lease Options

Cash in Lieu

Up to $16,500
cash back in lieu of financing
Customer Rebate

Warranty

3 Year / 3,000-Hour Full Coverage
Full machine coverage
Standard Included

See participating dealers for details.

*Program disclosure: 0% A.P.R. financing for up to 36 months and the cash-in-lieu rebate are mutually exclusive — select one or the other. Select models also carry an additional rebate that can be combined with either financing or cash in lieu; the up to $16,500 amount shown includes it. Lease options are available separately; contact dealer for terms and custom payment structures. Financing subject to credit approval through an authorized Develon financing provider. Rebate applied at time of purchase. 3 Year / 3,000-Hour Full Coverage standard warranty included with qualifying new Develon equipment purchases. Offers valid on qualifying new Develon models through participating dealers only. See dealer for complete details, eligibility requirements, and program end dates. Offers subject to change without notice.

DX300RB-7 Key Features

What Makes the DX300RB-7 Different

Purpose-Built Forestry Machine

The DX300RB-7 combines excavator power with a high-walker undercarriage, comprehensive guarding and forestry-focused controls for pioneering and land-clearing work.

270.9 hp DEVELON DL08P

The DEVELON engine delivers 270.9 net hp at 1,800 rpm for demanding clearing, stump removal, rough grading and drainage applications.

82,894 lb Operating Weight

The heavy forestry build, high and wide undercarriage, and reinforced guarding provide a stable, durable platform for extreme terrain.

34 ft 3 in Ground Reach

The forestry workgroup reaches across large clearing areas and provides a published 24 ft 3 in loading height.

Fully Guarded High-Walker

Heavy-duty links, double-grouser shoes, rock guards and full-length track guides protect the undercarriage and improve clearance over stumps and debris.

Standard or Forestry Cab

Choose the standard-height ROPS cab or an optional side-entry forestry cab with guarded polycarbonate glazing and a rear secondary exit.

Rear & Side Cameras

Standard rearview and side cameras feed the color monitor; an optional around view monitor expands visibility around the machine.

Forestry Uptime Package

Centralized grease points, wide service doors, extended boom-pivot greasing intervals and a high-capacity precleaner simplify maintenance.

DEVELON Road Builders

Compare the Road Builder Family

Compare current DEVELON road builders by power, operating weight, ground reach and loading height.

Develon DX225RB-7 road builderDevelon DX300RB-7 road builder
DX225RB-7DX300RB-7 Viewing
Rated Power (net)162.8 hp @ 1,800 rpm270.9 hp @ 1,800 rpm
Operating Weight65,918 lb82,894 lb
Ground Reach31 ft 8 in34 ft 3 in
Loading Height23 ft 1 in24 ft 3 in

Published North American specifications. Forestry configurations and attachments vary; contact Carleton Equipment to confirm details.

DX300RB-7

DX300RB-7 Features & Benefits

Forestry Performance 5
270.9 hp DL08P Engine

Net power at 1,800 rpm supports high-demand pioneering, clearing, grading and stump-removal work.

83,555 lbf Tractive Force

The drivetrain is designed to travel across uneven or soft terrain and push down trees efficiently.

Mechatronics Design

Linked engine and hydraulic controls, multiple operating modes and machine diagnostics balance productivity and fuel use.

Four Power Modes

Selectable settings let operators tailor machine response to working conditions and fuel priorities.

Attachment-Ready Hydraulics

Standard coupler piping supports buckets, thumbs and compatible tools with minimal customization.

Protection & Durability 5
High-Walker Undercarriage

A high and wide crawler base improves ground clearance and stability when traversing stumps, slash and rough terrain.

Heavy-Duty Track System

Double-grouser shoes, heavy-duty links, rock guards, reinforced front guards and full-length track guides protect running gear.

Guarded Upper Structure

Forestry guarding protects hydraulic and cooling access doors, the cab, cylinders and other vulnerable components.

Large-Capacity Air Precleaner

The precleaner removes more than 99% of airborne particles to extend air-filter cartridge service life.

Tier 4 Final System

High-pressure common rail, cooled EGR, DOC and SCR/DEF meet North American emissions requirements.

Cab, Visibility & Safety 5
Two Cab Choices

Use the standard-height ROPS cab or specify the side-entry forestry cab with guarded polycarbonate windows and secondary exit.

Heated & Cooled Seat

A standard adjustable air-suspension seat, automatic air conditioning and added foot space support all-day comfort.

Standard Camera Coverage

Rear and side cameras display on the color LCD monitor, with an optional 360-degree around view system available.

Narrow Cab Pillars

Slim pillars reduce visual obstruction and improve direct sightlines around the work area.

Rotating Beacon

A standard beacon increases machine visibility around active sites and during low-light operation.

Serviceability & Fleet Support 4
Centralized Grease Points

Grouped lubrication points and 250-hour boom-pivot greasing intervals reduce routine service time.

Wide Side Access

Large doors simplify access for cooling-system cleaning and scheduled maintenance.

Auto Idle & Shutdown

Automatic controls reduce unnecessary fuel use and can shut the engine down after a configurable 3- to 60-minute idle period.

MY DEVELON

Standard telematics remotely monitors location, health, productivity and maintenance schedules.

Develon DX300RB-7 Road Builder

Why Buyers Choose the DX300RB-7

Purpose-built for pioneering and demanding forestry work

270.9 net hp at 1,800 rpm and 82,894 lb operating weight

34 ft 3 in ground reach and 24 ft 3 in loading height

High-walker undercarriage for clearance and stability

Heavy-duty track, rock and full-length guiding guards

Standard ROPS or optional protected forestry cab

Standard rear and side cameras with optional AVM

Centralized service points and MY DEVELON telematics

Customers & Applications

Who Uses the DX300RB-7 and What For

The DX300RB-7 gives forestry contractors a guarded, high-clearance platform for opening access, clearing timber and preparing difficult sites.

Pioneering

  • Forest road construction
  • Access-trail opening
  • Right-of-way clearing
  • Terrain preparation

Land Clearing

  • Felled-tree removal
  • Stump excavation
  • Brush and slash handling
  • Site reclamation

Site Development

  • Rough grading
  • Drainage improvement
  • Ditch construction
  • Slope shaping

Attachments

  • Heavy-duty buckets
  • Severe-duty buckets
  • Hydraulic quick couplers
  • Thumbs
Develon DX300RB-7 Road Builder

By the Numbers

270.9 hpNet Power
82,894 lbsOperating Weight
34 ft 3 inGround Reach
24 ft 3 inLoading Height
76.1 gpmFlow Per Main Pump
83,555 lbfTraction Force

Talk to a person about the DX300RB-7

Carleton Equipment is a family-owned Michigan dealer, here since 1938. Sales, rental, service and parts all come from the same team, and we’ll connect you with the location nearest you.

  • Chesterfield
  • Coldwater
  • Grand Rapids
  • Howell
  • Kalamazoo
  • Livonia
  • Saginaw

Full Specifications

Download Spec Sheet
General
Machine TypeRoad builder
ApplicationForestry / pioneering
Operating Weight82,894 lbs
EngineDEVELON DL08P
Net Power270.9 hp @ 1,800 rpm
Main Pump Flow2 × 76.1 gpm
Performance & Working Range
Maximum Swing Torque87,787 lbf-ft
Maximum Traction Force83,555 lbf
Maximum Digging Reach, Ground34 ft 3 in
Maximum Loading Height24 ft 3 in
Forestry Equipment
UndercarriageHigh and wide forestry configuration
Track ShoesDouble grouser
Track ProtectionRock guards and full-length guiding guards
Upper Structure GuardingStandard forestry guarding
Coupler PipingStandard
Forestry CabOptional side-entry
Around View MonitorOptional
Cab & Technology
Standard CabROPS, standard height
SeatHeated and cooled air suspension
Climate ControlAutomatic air conditioning
Rearview CameraStandard
Side CameraStandard
Rotating BeaconStandard
MY DEVELONStandard
Engine & Service
EmissionsTier 4 Final
AftertreatmentDOC / SCR / DEF
Auto IdleStandard
Auto ShutdownStandard, adjustable 3–60 minutes
Centralized Grease PointsStandard
Boom Pivot Greasing250-hour interval
Engine Air PrecleanerLarge capacity

Values are from the current North American DX300RB-7 product page, road-builder family page and official sales specification sheet. Only verified published values are shown. Forestry equipment and attachments vary; contact Carleton Equipment to confirm the selected configuration.

Talk to a sales expert

Fill out the form and we'll connect you with the location nearest you.

First name is required.
Last name is required.
A phone number is required.
A valid email address is required.
Helps us route you to the closest location Please enter your zip code.

Related Products

Recently viewed