The Kabolite K350 RC Excavator is a substantial hydraulic construction model developed for RC enthusiasts looking for realistic excavation, detailed controls and serious mechanical capability. With an operating weight of 18 kg, a maximum digging depth of 485 mm and a hydraulic pump capable of operating between 2,000 and 8,400 rpm, the K350 sits firmly in the enthusiast-oriented end of the RC excavator market.
Rather than relying on simple electric actuators for its primary digging functions, the K350 uses hydraulic operation for the bucket, main boom and stick. Its tracked undercarriage is driven by brushless motors coupled to four-stage planetary gear reduction drives, adding another layer of mechanical sophistication.
The excavator also incorporates independently controlled tracks, upper-structure swing, lighting and sound functions. These are managed through a multi-channel transmitter configuration that provides separate controls for the major machine functions.
Available from Heavy Duty RC, the K350 is particularly relevant to experienced RC construction enthusiasts who want a heavy hydraulic excavator capable of more involved digging and miniature construction-site operation.
What Is the Kabolite K350 RC Excavator?
The Kabolite K350 is a hydraulic RC crawler excavator designed to reproduce the core movements of a full-size tracked excavator at hobby scale.
The supplied specifications identify the machine as the K350-100 configuration. It measures approximately 815.4 mm in overall length, 233.9 mm in overall width and 274.2 mm in height to the top of the boom.
At 18 kg, this is not a lightweight RC machine. Its physical size and weight contribute to a more substantial operating platform, particularly during digging.
The excavator's hydraulic functions include the bucket, main boom and stick, while separate electronic controls manage swing and track movement. This division between hydraulic excavation functions and electric drivetrain components closely reflects the type of multi-system operation enthusiasts expect from advanced hydraulic RC machinery.
Design and Construction
The K350's proportions emphasize functionality rather than simply creating a static scale replica.
Its basic machine length measures 440.7 mm, while the overall crawler length is 376.1 mm. A 184 mm track gauge and 49.9 mm crawler shoe width give the machine a relatively broad tracked footprint.
Ground clearance underneath the undercarriage is specified at 40.5 mm, while rear-end ground clearance is 102 mm. These measurements exclude the height of the grouser bars where indicated by the manufacturer.
The crawler system is particularly noteworthy. Each track is associated with a brushless motor using a four-stage planetary gear reduction drive. Planetary reduction allows the drivetrain to reduce motor speed while providing the controlled output needed to move a heavy tracked machine.
With an 18 kg operating weight, the K350 should be treated as enthusiast equipment that requires appropriate handling, storage and operating space.
Hydraulic Excavation Functions
The hydraulic system is central to the K350's design.
Three of the primary excavation functions are assigned dedicated proportional-style gimbal controls on the transmitter: the bucket, main boom and stick. This gives the operator direct control over the movements required to reproduce a digging cycle.
The pump has a specified operating-speed range of 2,000 to 8,400 rpm. Pump operation is assigned to a separate transmitter switch, allowing the hydraulic system to be activated when required.
The supplied specifications also identify a bucket breakout force of 20–35 kg. Breakout force describes the force available at the bucket during digging and material separation. The stated range provides useful context for the K350's intended hydraulic capability, although actual digging performance will naturally depend on material and operating conditions.
No hydraulic operating pressure or recommended hydraulic oil specification was provided in the supplied information, so these values should not be assumed.
Digging Performance
The K350 has a specified maximum digging depth of 485 mm.
That figure is particularly useful when planning an RC construction area because it provides an indication of how far below the machine's operating level the excavator can reach.
Its supplied backhoe bucket has a listed capacity of 0.00046864 cubic yards. Although small compared with real construction equipment, the bucket is proportioned for RC excavation and can be used for realistic material-handling cycles.
The combination of hydraulic bucket, stick and boom control allows the operator to reproduce the sequence of penetrating material, curling the bucket, lifting the boom and swinging toward a dumping location.
An 18 kg operating weight also provides a substantial base during excavation. However, digging capability will vary according to material density, moisture, surface conditions and operator technique.
Brushless Track Drive and Movement
The K350 uses brushless motors for its tracks, with each motor connected to a four-stage planetary reduction drive.
This is an important feature because the tracks need to move a machine weighing approximately 18 kg while providing controlled maneuverability around an RC construction site.
The left and right tracks are independently assigned to channels on the transmitter. The left track uses the VRA knob, while the right track uses VRB.
Independent track control allows the operator to maneuver the crawler by varying the movement of each side.
Upper-structure swing is assigned separately to Channel 4 and operated from a centered gimbal control. This allows the excavator to reposition its boom and bucket around the tracked undercarriage during excavation and loading operations.
Transmitter and Control Configuration
The K350's transmitter configuration provides separate channels for its principal hydraulic, drivetrain and accessory functions.
|
Channel |
Function |
Control |
|
CH1 |
Bucket |
Gimbal |
|
CH2 |
Main boom |
Gimbal |
|
CH3 |
Stick |
Gimbal |
|
CH4 |
Swing motor |
Gimbal |
|
CH5 |
Left track |
VRA knob |
|
CH6 |
Right track |
VRB knob |
|
CH7 |
Hydraulic pump |
SWA switch |
|
CH8 |
Light module |
SWD switch |
|
CH9 |
Sound module |
SWB switch |
|
CH10 |
Sound module mixer |
Supplied configuration |
This arrangement demonstrates the level of functionality built into the K350. Instead of combining numerous operations under basic controls, individual machine systems are assigned their own channels.
The supplied information for Channel 10 ends with the value "6" and does not provide enough detail to explain its precise mixer configuration, so it should be checked against the transmitter documentation before adjustment.
Lights and Sound
In addition to excavation and driving functions, the K350 includes dedicated transmitter controls for lighting and sound modules.
The light module is assigned to Channel 8 and operated through the SWD switch. Sound is controlled through Channel 9, with a separate mixer configuration referenced under Channel 10.
These functions do not change the machine's digging capability, but they add to the experience of operating the excavator as a scale construction model.
For enthusiasts building complete RC construction sites, coordinated sound, lighting, excavator movement and interaction with dump trucks or loaders can significantly improve overall realism.
Dimensions and Technical Specifications
The confirmed specifications supplied for the K350-100 are summarized below.
|
Specification |
Kabolite K350-100 |
|
Operating weight |
18 kg |
|
Maximum digging depth |
485 mm |
|
Bucket capacity |
0.00046864 cu yd |
|
Bucket breakout force |
20–35 kg |
|
Pump speed |
2,000–8,400 rpm |
|
Overall length |
815.4 mm |
|
Overall width |
233.9 mm |
|
Height to top of boom |
274.2 mm |
|
Basic machine length |
440.7 mm |
|
Height to top of cab |
241.5 mm |
|
Rear-end ground clearance |
102 mm |
|
Tumbler center distance |
298 mm |
|
Overall crawler length |
376.1 mm |
|
Crawler height at tumbler center |
83.9 mm |
|
Track gauge |
184 mm |
|
Crawler shoe width |
49.9 mm |
|
Undercarriage ground clearance |
40.5 mm |
|
Track motors |
Brushless |
|
Track reduction |
Four-stage planetary gear drive |
|
Packing dimensions |
90 × 33 × 40 cm |
|
Net weight |
18 kg |
|
Gross packaged weight |
26.5 kg |
What's Included?
The supplied information specifically identifies the K350-100 backhoe bucket and provides the transmitter configuration for the excavator.
However, a complete package inventory was not provided. The available details do not conclusively establish which battery, charger, hydraulic oil, tools or other accessories are supplied as standard.
Those package contents should therefore be confirmed on the Kabolite K350 product page before ordering rather than assumed.
Who Is the Kabolite K350 Best Suited For?
The K350 is best suited to enthusiasts looking to move beyond simpler electric RC excavators into larger hydraulic machinery.
Its 18 kg operating weight, hydraulic digging equipment, multi-channel controls and brushless planetary track drives introduce considerably more complexity than basic toy-grade models.
Experienced operators can use its separate boom, stick and bucket controls to develop realistic digging techniques. Owners of RC dump trucks can also incorporate the K350 into loading operations, creating a more complete miniature construction workflow.
Collectors interested primarily in mechanical engineering may find its hydraulic system, planetary reduction drives and detailed control architecture equally appealing.
Its weight and hydraulic complexity mean prospective owners should also be prepared for appropriate transportation, maintenance and storage.
Maintenance, Parts and Upgrades
Hydraulic RC excavators require more attention than basic electric models.
Routine ownership should include monitoring the hydraulic system according to manufacturer guidance, checking connections, inspecting track components and keeping the drivetrain clear of excessive dirt or debris.
The brushless track motors and four-stage planetary reduction drives are also important mechanical systems that should be treated appropriately during operation.
Before replacing or upgrading hydraulic, drivetrain or electronic components, compatibility with the K350 should be confirmed.
Heavy Duty RC specializes in RC construction equipment and also carries parts, accessories and other machines that can be incorporated into a larger construction fleet.
Similar Models and Alternatives
The K350 occupies an interesting position for enthusiasts looking at heavier hydraulic RC excavators.
Buyers comparing it with other models should consider more than physical size alone. Hydraulic capability, digging depth, machine weight, track-drive design, control configuration, replacement-part availability and maintenance requirements can all influence the ownership experience.
The K350's 485 mm maximum digging depth, 18 kg operating weight and brushless planetary track drives provide useful benchmarks when evaluating alternative hydraulic excavators.
Exploring other RC construction equipment from Heavy Duty RC can help determine whether the K350's size and hydraulic configuration best match the intended construction setup.
Watch It before Adding It to Your Fleet
Before adding the Kabolite K350 RC Excavator to your RC construction collection, watch the YouTube video below for a closer look at it in action. The footage provides additional perspective on its movement, working functions, realistic detailing, and overall scale presence.
Why Buy From Heavy Duty RC?
Heavy Duty RC is a specialist marketplace focused on RC construction equipment, including hydraulic excavators, dump trucks, wheel loaders, bulldozers and other construction machinery.
For enthusiasts investing in advanced models such as the K350, purchasing from a specialist retailer also provides access to related construction equipment, parts and upgrade options rather than treating the excavator as an isolated RC product.
Most importantly, every complete RC model purchased from Heavy Duty RC comes with a 1-year warranty, providing additional reassurance when investing in sophisticated hydraulic RC equipment.
The Kabolite K350 RC Excavator can be viewed directly on HeavyDutyRC.com for current product information and purchasing options.
Frequently Asked Questions
How much does the Kabolite K350 weigh?
The K350 has a specified operating and net weight of 18 kg. Its gross packaged weight is approximately 26.5 kg.
How deep can the Kabolite K350 dig?
The supplied specifications list a maximum digging depth of 485 mm.
Does the K350 use brushless motors?
Yes. Its track motors are brushless and use four-stage planetary gear reduction drives.
What is the K350's bucket breakout force?
The specified bucket breakout force is between 20 and 35 kg.
What is the hydraulic pump speed?
The supplied pump-speed range is 2,000 to 8,400 rpm.
Does the K350 have lights and sound?
Yes. The transmitter configuration includes dedicated channels for a light module, sound module and sound-module mixer.
Is the Kabolite K350 suitable for beginners?
Its hydraulic operation, 18 kg weight and multi-channel controls make it better suited to enthusiasts prepared to operate and maintain advanced RC construction machinery rather than someone looking for a simple introductory model.
Conclusion
The Kabolite K350 RC Excavator combines hydraulic excavation, an 18 kg operating weight, a 485 mm maximum digging depth and brushless track motors with four-stage planetary reduction drives in a substantial RC construction platform.
Its separately controlled bucket, boom, stick, swing and tracks provide operators with the functions needed to recreate realistic excavation cycles, while dedicated lighting and sound controls contribute additional scale detail.
For experienced hobbyists looking for a sizeable hydraulic excavator capable of becoming the centerpiece of an RC construction site, the K350 offers a technically interesting combination of digging capability, drivetrain engineering and multi-channel operation.
Explore the Kabolite K350 RC Excavator at Heavy Duty RC for additional product information and purchasing details.