Rebates & Special Offers
View Full OfferGet as low as 0% for 60 months* or Up to $43,500 cash back* in lieu of financing.
- Horsepower
- 336.6 hp
- Max dig depth
- 27' 5"
- Operating weight
- 95,702 lb
- Bucket digging force
- 8,678 lbf
More specifications
|
General Info
|
|
|---|---|
| Condition: | Showroom |
| Manufacturer: | Develon |
| Model: | DX400LC-9 |
| Machine Type: | Excavator |
|
Engine
|
|
|---|---|
| Engine: | DX08 |
| Engine Make: | Perkins |
| Horsepower: | 336.6 |
| Emissions: | Tier 4 |
|
Performance
|
|
|---|---|
| Bucket Digging Force: | 8,678 lbf. |
| Arm Digging Force: | 6,542 lbf. |
| Max Digging Reach (Ground): | 42' 5" |
| Max Digging Depth: | 27' 5" |
| Operating Weight: | 95702 lb |
|
Hydraulics
|
|---|
|
Dimensions
|
|
|---|---|
| Fuel Tank: | 156.4 gal. |
Description
DX400LC-9 | Develon
Smarter Solutions for Safer Job Sites
The Develon DX400LC-9 brings advanced safety technology to the 40-ton excavator class, helping operators work more confidently on demanding jobsites. Virtual Walls (e-fencing) allow you to establish machine movement limits, improving safety by preventing operation beyond preset boundaries. Optional Smart Around View Monitor (SAVM) and Human Detection System (HDS) technologies combine six cameras, radar sensors, and artificial intelligence to provide a complete 360-degree view around the machine. The integrated E-Stop system automatically slows the excavator when a person is detected within 13 feet and brings it to a complete stop if someone enters within 6.5 feet.
Advanced Technology for Greater Productivity
The DX400LC-9 is equipped with intelligent technologies that help maximize efficiency and jobsite performance. An onboard weighing system enables operators to accurately monitor material volumes and optimize truck loading, while Lift Assist and Advanced Lift Assist provide real-time lifting capacity information and alert operators to potential tipping hazards. Breaker Assist helps prevent blank firing, reducing attachment wear while improving operator comfort and extending machine life. Factory-installed 2D machine guidance and machine control systems provide accurate grade guidance and excavation assistance, helping improve productivity while minimizing rework.
Redesigned Cab for Operator Comfort
The redesigned operator station delivers exceptional comfort, visibility, and control throughout the workday. A customizable joystick allows operators to personalize controls, including stick steer and thumbwheel steer functions, while the large 12-inch high-resolution touchscreen display provides quick access to machine settings and operating information. Automotive-style heating and air conditioning, high-capacity air vents, and improved windshield defrosting create a comfortable working environment in all weather conditions.
Built to Maximize Uptime
The DX400LC-9 is engineered to reduce operating costs while maximizing machine availability. Four selectable power modes allow operators to optimize fuel efficiency and performance for changing jobsite conditions, while the exclusive D-ECOPOWER™ hydraulic system improves productivity and reduces fuel consumption. Ground-level access to routine service points simplifies daily maintenance, and Advanced Prognostics and Health Management (PHM) technology continuously monitors critical components such as hydraulic oil, engine oil, and main pumps to help predict maintenance needs, minimize downtime, and lower long-term service costs.
Loan
Lease
Cash in Lieu
Warranty
See participating dealers for details.
*Program disclosure: 0% A.P.R. financing for up to 60 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 $43,500 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 DX400LC-9 Different
Virtual Walls
Built-in e-fencing lets operators set movement boundaries for the front, swing and height to work more confidently near structures and obstacles.
AI Collision Avoidance
With the optional SAVM and human-detection package, Collision Avoidance Assist slows the machine when a person is within 13 feet and stops it within 6.5 feet.
Factory 2D Guidance and Control
Integrated guidance and grade-control capability helps operators work more accurately and efficiently.
Fully Electro-Hydraulic Controls
Electronic pumps, valves and customizable joysticks provide precise response, stick steer and thumbwheel steer.
12-Inch Smart Touch Display
The high-resolution, split-screen interface keeps machine information, cameras and grade functions easy to see and manage.
59,350 lbf Bucket Force
ISO power-boost digging force supports difficult breakout work, while 95 gpm main-pump flow keeps hydraulic functions responsive.
Compare Next-Generation Excavators
![]() | ![]() | ![]() | ![]() | ![]() | |
| DX230LC-9 | DX260LC-9 | DX300LC-9 | DX360LC-9 | DX400LC-9 Viewing | |
|---|---|---|---|---|---|
| Rated Power (net) | 180.5 hp @ 1,700 rpm | 220.9 hp @ 1,900 rpm | 277.6 hp @ 1,800 rpm | 300.4 hp @ 1,800 rpm | 336.6 hp @ 1,800 rpm |
| Operating Weight | 53,351 lb | 60,406 lb | 74,978 lb | 85,799 lb | 97,024 lb |
| Maximum Dig Depth | 21 ft 8 in | 22 ft 4 in | 23 ft 10 in | 24 ft 7 in | 24 ft 3 in |
| Series | -9 | -9 | -9 | -9 | -9 |
Published North American headline specifications. Specifications vary by configuration; contact Carleton Equipment to confirm details.
DX400LC-9 Features & Benefits
Smart Safety & Awareness 6
Virtual Walls
Operator-defined e-fencing limits machine movement for tighter urban sites and work near obstacles.
Smart Around View Monitor
The optional SAVM system combines six cameras, radar sensors and AI-powered detection for a 360-degree view.
Human Detection System
AI distinguishes people in the work zone to improve awareness around the excavator.
Collision Avoidance Assist
The machine automatically slows when a person is detected within 13 feet and stops when someone is within 6.5 feet.
Lift Assist
Lift Assist and available Advanced Lift Assist display lifting capacity and warn of potential tipping hazards.
Rearview Visibility
The redesigned cab and camera systems improve awareness on busy jobsites.
Precision & Productivity 6
Factory 2D Machine Guidance
Factory-integrated guidance helps operators reach grade with fewer checks.
Machine Control
Grade-control functions support more accurate excavation and reduce rework.
Weighing System
Onboard weighing helps manage volumes and load trucks to their target capacity.
Breaker Assist
Blank-fire prevention reduces unnecessary impact and wear during breaker operation.
Straight Travel
Single-pedal straight travel supports trenching and jobsite transport.
Power Boost
One-touch hydraulic power boost supports difficult digging and breakout work.
Efficiency & Uptime 6
Fully Electro-Hydraulic System
Electronic pumps and control valves precisely meter hydraulic oil for the task.
D-ECOPOWER
The system can provide up to 8% greater fuel efficiency and up to 20% increased engine output.
Four Power Modes
Operators can balance fuel consumption and power for changing conditions.
Ground-Level Filters
Regular inspection points are grouped for convenient ground-level access.
Prognostics and Health Management
PHM monitors critical fluids and pumps to predict maintenance needs and reduce downtime.
MY DEVELON
Fleet management provides remote access to machine health, location, utilization and maintenance information.
Operator Experience 6
12-Inch Smart Touch Display
The large high-resolution screen provides a customizable interface for cameras, grade systems and machine settings.
Programmable Joysticks
Operators can personalize sensitivity, response and button functions.
Stick and Thumbwheel Steer
Alternative steering options complement traditional travel levers and pedals.
Digital Key
The MY DEVELON app can start or stop the engine, lock or unlock the cab, control lamps and precondition the cabin.
Automotive Climate Control
High-capacity vents and improved defrosting help maintain comfort and visibility.
Heated and Cooled Seat
An optional deluxe air-suspension seat supports year-round comfort.
Why Buyers Choose the DX400LC-9
336.6 net hp in a versatile 97,024 lb, 40-ton-class excavator
Virtual Walls help control front, height and swing movement near obstacles
Optional AI human detection, 360-degree SAVM and automatic collision avoidance
Factory 2D guidance and machine control for faster, more accurate grade work
59,350 lbf power-boost bucket force and 95 gpm maximum main-pump flow
Fully electro-hydraulic controls with customizable joysticks and alternative steering
12-inch Smart Touch display, Digital Key and redesigned climate-controlled cab
106,947 lbf-ft swing torque and 94,869 lbf maximum traction force
Who Uses the DX400LC-9 and What For
The DX400LC-9 combines 40-ton-class digging performance with integrated safety, grade and fleet technology for contractors working across urban, civil and commercial jobsites.
Urban Construction
- Excavation near buildings
- Utility installation
- Restricted-height work
- Busy jobsites with personnel
Civil & Infrastructure
- Road and drainage projects
- Trenching and backfilling
- Bridge and site preparation
- Factory-guided grading
Commercial Site Work
- Foundations and footings
- Truck loading with onboard weighing
- Bulk excavation
- Finish grading
Demolition & Attachments
- Breaker work with blank-fire protection
- Material sorting and handling
- Heavy-duty bucket work
- Quick-coupler applications
The DX400LC-9 by the Numbers
Rated at 1,800 rpm.
A versatile 40-ton-class machine.
Published North American specification.
Maximum published flow rate.
ISO digging force with power boost.
Maximum published swing torque.
Talk to a person about the DX400LC-9
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 | Crawler excavator |
| Class | 40-ton class |
| Operating Weight | 97,024 lbs |
Engine
| Net Power | 336.6 hp @ 1,800 rpm |
| Rated Power | 251 kW @ 1,800 rpm |
| Power Modes | 4 |
Performance
| Maximum Dig Depth | 24 ft 3 in |
| Bucket Digging Force, Power Boost | 59,350 lbf |
| Maximum Swing Torque | 106,947 lbf·ft |
| Maximum Traction Force | 94,869 lbf |
| Grade Technology | Factory 2D machine guidance and control |
| Weighing System | Onboard volume monitoring |
| Lift Technology | Lift Assist and Advanced Lift Assist |
| Breaker Assist | Blank-fire prevention |
| Straight Travel | Single-pedal control |
Hydraulics & Controls
| Main Pumps | 2 |
| Maximum Main-Pump Flow | 95 gpm |
| Control System | Fully electro-hydraulic |
| Steering | Traditional levers/pedals, stick steer and thumbwheel steer |
| Joystick | Fully programmable |
| Efficiency System | D-ECOPOWER |
Safety & Visibility
| Virtual Walls | Operator-defined e-fencing |
| Smart Around View Monitor | Optional |
| Human Detection System | Optional with SAVM |
| Collision Avoidance Assist | Detection-package feature |
| Automatic Slow / Stop Range | 13 ft / 6.5 ft |
Operator Environment
| Display | 12-inch high-resolution Smart Touch |
| Display Layout | Customizable split screen; dual monitor available |
| Digital Key | Standard |
| Climate Control | Automotive-style heat and air conditioning |
| Heated / Cooled Seat | Optional |
Serviceability
| Filter Access | Ground level |
| Machine Health | Prognostics and Health Management |
| Fleet Management | MY DEVELON |
Values and feature availability are from the current DEVELON North America DX400LC-9 product page and -9 Series page. Unpublished specification rows are intentionally omitted. Contact Carleton Equipment to confirm configuration and option availability.
Rebates & Special Offers
View Full OfferGet as low as 0% for 60 months* or Up to $43,500 cash back* in lieu of financing.
|
General Info
|
|
|---|---|
| Condition: | Showroom |
| Manufacturer: | Develon |
| Model: | DX400LC-9 |
| Machine Type: | Excavator |
|
Engine
|
|
|---|---|
| Engine: | DX08 |
| Engine Make: | Perkins |
| Horsepower: | 336.6 |
| Emissions: | Tier 4 |
|
Performance
|
|
|---|---|
| Bucket Digging Force: | 8,678 lbf. |
| Arm Digging Force: | 6,542 lbf. |
| Max Digging Reach (Ground): | 42' 5" |
| Max Digging Depth: | 27' 5" |
| Operating Weight: | 95702 lb |
|
Hydraulics
|
|---|
|
Dimensions
|
|
|---|---|
| Fuel Tank: | 156.4 gal. |












































































