PRODUCT INFORMATION
18Q Mini Excavator: Product Details and Technical Specifications
1 Product Overview
The 18Q is a compact crawler excavator with an operating weight of 1,500 kg. It is designed primarily for small earthworks, municipal maintenance, landscaping, utility installation, and localized demolition. Its transport dimensions are 3,249 mm long, 1,120 mm wide, and 2,314 mm high. Site access should be planned according to passage widths, overhead clearance, and ground conditions.
The machine features a crawler undercarriage, adjustable dozer blade, standard bucket, adjustable operator seat, standard canopy, and 360° upper-structure rotation. Optional hydraulic breakers, rippers, log grapples, rakes, augers, larger buckets, and mud buckets extend its use beyond excavation, backfilling, and leveling to breaking, loosening soil, gripping material, drilling, and dredging.
Product Positioning
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Positioning Item
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18Q Description
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Equipment Class
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1,500 kg-class compact crawler excavator
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Key Features
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Compact body, 360° rotation, multiple optional attachments
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Primary Users
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Small construction crews, municipal maintenance teams, landscaping, agriculture and forestry users
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Typical Applications
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Small earthworks, utility installation, localized demolition, ditch and stream cleanup
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Selection Priorities
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Site access dimensions, digging range, engine variant, track and attachment compatibility
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Machine Class and Selection Priorities
The 18Q has a maximum digging depth of 2,091 mm, a maximum digging reach of 3,496 mm, and a maximum digging force of 10 kN. These are key reference values for selecting equipment for small projects. Access requirements, working envelope, engine version, track type, and attachments should also be assessed. The illustrated seat-activated safety lock, LED LCD display, and foot-operated breaker control must be verified against the delivered machine.
2 Applications and Suitable Operating Conditions
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Application
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Typical Tasks
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Site Considerations
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Indoor and Confined Areas
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Indoor demolition, dry-toilet refurbishment, localized demolition
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Check doorway dimensions, overhead clearance, ground capacity, ventilation, and exhaust conditions
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Small Earthworks
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Pits, trenches, backfilling, site preparation
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Control slopes, equipment position, and digging reach according to soil
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Municipal Maintenance
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Cable and water trenches, localized road repair
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Identify underground utilities and establish an exclusion zone
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Landscaping
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Planting pits, transplanting support, grading
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Avoid damage to existing roots and underground irrigation
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Concrete Breaking
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Localized road, foundation, brick, and masonry removal
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Select a compatible breaker and verify hydraulic parameters
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Watercourse and Ditch Cleanup
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Dredging and removal of debris from waterways and ditches
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Assess soft ground, waterside slopes, and machine bogging risks
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Land Clearing and Agricultural/Forestry Work
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Clearing overgrown land, shallow trenching, surface leveling
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Adapt operating methods to slope, traction, and obstacles
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Main Operating Capabilities
Basic Excavation:
The standard bucket is suitable for trenches, planting pits, small foundations, and general earthworks. A maximum digging depth of 2,091 mm and maximum digging reach of 3,496 mm help assess required excavation depth and the area accessible from a fixed position. Actual operation depends on soil and available site space.
Backfilling and Leveling:
The adjustable dozer blade can move loose soil, backfill trenches, and level working surfaces. Its supporting function must be used according to the operating manual, with machine positioning adapted to ground-bearing conditions.
Loading and Cleanup:
Maximum digging height is 3,028 mm, and maximum dumping height is 2,190 mm. Before loading, check the receiving container or truck sidewall height, bucket tipping clearance, and machine position. Maximum height alone does not establish loading feasibility.
3 Performance Features and Structure
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Feature
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Structural / Configuration Basis
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Practical Significance
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Compact and Agile
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Transport width 1,120 mm; length 3,249 mm
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Facilitates equipment layout and access routes on restricted sites
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Operator Adjustability
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Adjustable operator seat
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Allows seating adjustment; learn control layout before operation
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Safety Lock
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Illustrated seat-activated safety lock
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Verify actual locking and interlock functions against machine documentation
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Status Display
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LED LCD display
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Displays operating information; confirm actual readouts on delivered configuration
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Breaker Controls
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Illustrated foot-operated breaker control
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For optional breaker use; verify controls and circuit requirements
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Swing Function
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360° upper-structure rotation
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Allows working equipment direction changes from one position
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Hydraulic Components
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Dual gear pump, imported cylinders and hoses, NOK seals
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Provides hydraulic actuation and sealing
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Durability and Protection
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Thickened high-quality steel and powder coating
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Supports structural durability, corrosion and rust resistance
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Track Options
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Standard rubber tracks; optional steel tracks
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Select according to surface, wear and maintenance needs
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Travel System
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Branded reduction gearbox; 0–6 km/h travel speed
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Reference for on-site movement; adjust speed to ground conditions
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Power System
The standard configuration lists a Laidong 385B engine, identified as KM385B in English. The specifications also list Laidong/Kubota, KM385B/D722, and 24 HP/13.9 HP. These represent engine variants that must be verified separately. The order should specify engine brand, complete model, and rated power, and these should be checked against the engine nameplate upon delivery.
Hydraulics and Piping
Standard equipment includes imported hydraulic cylinders and hoses, NOK seals, and a dual gear pump. The brochure also depicts a foot-operated breaker control, which should be checked when verifying breaker capability; the hydraulic breaker itself remains an optional attachment. Before fitting a breaker or auger, confirm auxiliary hydraulic pressure, flow, couplings, and return-line requirements.
4 Standard Equipment and Optional Attachments
Standard Equipment
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Equipment
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Function / Notes
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Laidong KM385B Engine
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Standard configuration lists Laidong 385B; other engine options require separate confirmation
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Imported Hydraulic Cylinders and Hoses
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Hydraulic actuation and fluid connections for work equipment
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NOK Seals
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Sealing components listed as standard equipment
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Dual Gear Pump
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Supplies hydraulic oil to the system
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Adjustable Operator Seat
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Allows operator seating-position adjustment
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Adjustable Dozer Blade
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For dozing, backfilling, and leveling
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Wear-Resistant Engineering Rubber Tracks
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Standard track type; optional steel tracks must be confirmed separately
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Standard Bucket
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For general earthworks and trench excavation
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Standard Canopy
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Overhead shelter for operator area; verify protection rating separately
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Optional Attachments
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Attachment
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Primary Application
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Selection Guidance
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Hydraulic Breaker
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Concrete, masonry, and localized demolition
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Check pressure, flow, return line, and foot-control setup
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Ripper
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Pre-loosening hard or compacted soil
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Select according to soil and allowable load
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Log Grapple
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Gripping timber, branches, and materials
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Check opening, weight, and mechanical mounting dimensions
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Rake
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Gathering debris and surface clearing
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Choose tine spacing and width for the task
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Auger
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Drilling planting and post holes
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Check drilling diameter, torque, and hydraulic compatibility
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Large Bucket
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Handling loose material and soil
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Consider capacity, material weight, and permissible equipment load
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Mud Bucket
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Ditch cleaning and loading soft mud
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Check width, connection dimensions, and dumping conditions
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Steel tracks are an option and should be distinguished from the standard rubber tracks. When choosing attachments, verify pin dimensions, mounting brackets, attachment weight, and hydraulic interfaces. For a Kubota-powered version or steel tracks, separately confirm the delivery list, total machine weight, and related specifications.
5 18Q Technical Specifications
The following table lists the principal 18Q technical specifications. Engine data cover different versions; maximum power is shown in HP as in the brochure. The version actually supplied is determined by the order and nameplate.
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Category
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Specification
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18Q Data
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General
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Model
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18Q
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Weight
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Operating Weight
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1500 kg
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Transport Dimensions
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Transport Length
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3249 mm
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Transport Dimensions
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Transport Width
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1120 mm
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Transport Dimensions
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Transport Height
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2314 mm
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Working Range
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Maximum Digging Reach
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3496 mm
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Working Range
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Maximum Digging Depth
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2091 mm
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Working Range
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Maximum Digging Height
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3028 mm
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Working Range
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Maximum Dumping Height
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2190 mm
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Operating Capability
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Maximum Digging Force
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10 kN
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Power System
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Engine Brand
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Laidong / Kubota
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Power System
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Engine Model
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KM385B / D722
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Power System
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Maximum Power
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24 HP / 13.9 HP
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Travel Performance
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Travel Speed
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0 to 6 km/h
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Travel Performance
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Gradeability
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30°
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Notes on Using the Specifications
· Engine brand, model, and maximum power must be checked as a matching set for each engine variant. The 24 HP and 13.9 HP ratings must not be added together and do not mean that one machine delivers both outputs.
· Maximum digging reach, depth, height, and dumping height describe the operating envelope. Actual performance depends on attachment, machine position, soil, and operating posture. The Chinese specifications identify 2,190 mm as the maximum dumping height.
· The brochure figures of 0–6 km/h travel speed and 30° gradeability must not be taken as safe operating limits for every road or slope. Follow the manufacturer’s instructions.
· Unspecified items, including bucket capacity, hydraulic pressure, pump flow, fuel tank capacity, ground clearance, and minimum swing radius, require separate confirmation. Do not infer machine tonnage or other specifications from the model number.
6 Specification Interpretation and Selection Advice
Site Access
Before entering a site, compare the transport width of 1,120 mm and height of 2,314 mm with measured doorways, passageway turns, and overhead obstacles; allow clearance for operating movement and machine deviation. The transport length of 3,249 mm must also be considered for loading platforms and parking spaces.
Working Envelope
The maximum digging depth of 2,091 mm offers an initial indication of suitability for trenches, planting pits, and small foundations. The maximum reach of 3,496 mm helps estimate coverage from a given machine position. Work near the limits must be assessed using a working-range diagram, trench sections, and a trial run; no single specification determines suitability.
Loading Capability
The maximum dumping height of 2,190 mm is an important loading dimension. Also verify truck sidewall height, bucket discharge path, and safe clearance. The 1,500 kg operating weight must be included in transport load assessments, with attachments and accessories counted separately.
Engine Options
Engine selection should be based on the actual supply versions of the Laidong KM385B and Kubota D722. Compare power rating, spare-parts availability, maintenance arrangements, and project requirements. Standard tracks are engineering rubber tracks; optional steel tracks are available. Consider pavement protection, wear conditions, and delivered weight when selecting tracks.
Quick Selection Guide
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Project Requirement
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Selection Check
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Restricted Passage / Headroom
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Verify 1120 mm width, 2314 mm height, and turning clearance
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Trenching and Landscaping
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Compare 2091 mm maximum depth and 3496 mm maximum reach
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Loading Trucks or Hoppers
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Verify 2190 mm maximum dumping height and discharge path
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Breaking or Drilling
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Confirm auxiliary hydraulic specs and attachment compatibility
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Tracks and Transportation
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Distinguish rubber/steel tracks; confirm total weight and transport needs
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7 Operating Safety and Maintenance
The following are general operating checks and maintenance reminders for product discussions and equipment management. Specific procedures, service intervals, and safety requirements must follow the manufacturer’s manual. Operators must be trained and check machine condition and site conditions before entering and working on site.
Pre-Operation Checks
· Check fuel, engine oil, hydraulic oil, and cooling-system condition as instructed in the manual; confirm there are no visible leaks.
· Inspect tracks, pins, hoses, fittings, bucket, and attachment connections. Check steel-track versions according to their applicable instructions.
· Verify safety-lock operation, display status, and foot-control labels; test all mechanisms according to the manual.
· Keep people and obstacles clear of the work area and identify underground services, overhead lines, and exposed edges.
· For indoor or partly enclosed areas, first confirm ventilation, exhaust management, ground load capacity, and access conditions.
Precautions During Operation
· Choose operating methods according to ground and slope conditions. The 30° gradeability rating does not authorize continuous cross-slope operation.
· Engage and release the safety lock as specified by the manufacturer. Verify the exact interlock functions rather than judging by appearance.
· Check the surrounding area before swinging or dumping; keep people outside the working equipment’s range of movement.
· Before using a hydraulic breaker, confirm correct installation and hydraulic compatibility, and understand the foot-control operation.
· Stop and inspect the machine if unusual noise, abnormal movement, display warnings, or leaks occur; follow the manual for corrective action.
Maintenance and Parking
· Follow the manual for parking, lowering the working equipment, locking controls, and shutting down the engine.
· Clean tracks, cooling areas, and pivot points regularly, and lubricate pins and connections as specified.
· Select fluids and filters and follow service intervals for the actual engine variant and hydraulic system.
· Keep the display and foot-control area clean. For long-term storage, provide corrosion and rain protection and maintain the battery.
8 Purchasing and Acceptance Recommendations
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Inspection Item
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Check
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Acceptance Record
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Machine Identification
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18Q model, serial number, and nameplate
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□ Compliant □ Pending
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Engine Configuration
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Brand, model, and power match the order
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□ Compliant □ Pending
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Structure and Tracks
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Structural parts, canopy, finish, and track version
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□ Compliant □ Pending
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Hydraulic System
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Cylinders, hoses, connectors, and operating condition
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□ Compliant □ Pending
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Controls and Display
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Safety lock, LCD, and foot-control functions
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□ Compliant □ Pending
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Travel and Work Equipment
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Travel, swing, boom, arm, bucket, and dozer blade
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□ Compliant □ Pending
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Accessories / Documents
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Attachments, tools, manual, certificates, and warranty records
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□ Complete □ Missing
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Test Run
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Starting, idling, movements, noise, and alarms
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□ Normal □ Action Needed
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Items to Confirm Before Ordering
· Engine brand, full model, power, and applicable fuel; where certification is required, check documentation for the chosen variant.
· Standard bucket width and capacity, pin and mounting-bracket dimensions, and auxiliary hydraulic pressure, flow, and connectors.
· Specific safety-lock interlock functions, display functions, foot-operated breaker controls, and supplied attachment list.
· Rubber- or steel-track version, actual operating weight, ground clearance, rear swing dimensions, and track specifications.
· Initial and routine service intervals for engine and hydraulics, warranty coverage, spare parts, and after-sales arrangements.
· Transport vehicle load capacity, loading space, loading/unloading methods, tie-down points, and weight of included accessories.
Configuration and Delivery Note: The engine, tracks, attachments, and accompanying documents must be confirmed item by item against the order. Configurations may change by production batch and customization. The contract, machine nameplate, factory documents, and actual acceptance inspection are definitive.
