Rebates & Special Offers
View Full OfferGet 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
More specifications
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General Info
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| Condition: | Showroom |
| Manufacturer: | Develon |
| Model: | DX300RB-7 |
| Machine Type: | Other |
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Engine
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| Engine: | DL08P |
| Horsepower: | 270.9 |
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Performance
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| Operating Weight: | 82894 lb |
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Hydraulics
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Dimensions
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| 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
Lease
Cash in Lieu
Warranty
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.
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.
Compare the Road Builder Family
Compare current DEVELON road builders by power, operating weight, ground reach and loading height.
![]() | ![]() | |
| DX225RB-7 | DX300RB-7 Viewing | |
|---|---|---|
| Rated Power (net) | 162.8 hp @ 1,800 rpm | 270.9 hp @ 1,800 rpm |
| Operating Weight | 65,918 lb | 82,894 lb |
| Ground Reach | 31 ft 8 in | 34 ft 3 in |
| Loading Height | 23 ft 1 in | 24 ft 3 in |
Published North American specifications. Forestry configurations and attachments vary; contact Carleton Equipment to confirm details.
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.
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
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
By the Numbers
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 SheetGeneral
| Machine Type | Road builder |
| Application | Forestry / pioneering |
| Operating Weight | 82,894 lbs |
| Engine | DEVELON DL08P |
| Net Power | 270.9 hp @ 1,800 rpm |
| Main Pump Flow | 2 × 76.1 gpm |
Performance & Working Range
| Maximum Swing Torque | 87,787 lbf-ft |
| Maximum Traction Force | 83,555 lbf |
| Maximum Digging Reach, Ground | 34 ft 3 in |
| Maximum Loading Height | 24 ft 3 in |
Forestry Equipment
| Undercarriage | High and wide forestry configuration |
| Track Shoes | Double grouser |
| Track Protection | Rock guards and full-length guiding guards |
| Upper Structure Guarding | Standard forestry guarding |
| Coupler Piping | Standard |
| Forestry Cab | Optional side-entry |
| Around View Monitor | Optional |
Cab & Technology
| Standard Cab | ROPS, standard height |
| Seat | Heated and cooled air suspension |
| Climate Control | Automatic air conditioning |
| Rearview Camera | Standard |
| Side Camera | Standard |
| Rotating Beacon | Standard |
| MY DEVELON | Standard |
Engine & Service
| Emissions | Tier 4 Final |
| Aftertreatment | DOC / SCR / DEF |
| Auto Idle | Standard |
| Auto Shutdown | Standard, adjustable 3–60 minutes |
| Centralized Grease Points | Standard |
| Boom Pivot Greasing | 250-hour interval |
| Engine Air Precleaner | Large 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.
Rebates & Special Offers
View Full OfferGet as low as 0% for 36 months* or Up to $16,500 cash back* in lieu of financing.
|
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 |





































































