A building contractor sends one machine to a site that is at a different stage every week, so the excavator has to be equally at home digging footings and clearing up afterwards.
MINGYI builds compact excavators that suit that sequence, sized for domestic and small commercial building rather than for bulk earthmoving.
Covering the stages of a build

Footing and foundation excavation comes first, followed by service and drainage trenches and the preparation of the ground around the structure.
Backfilling and the final clearance and levelling follow, and a grading bucket is what makes those stages efficient.
What contractors value in the machine

Reliability and simple servicing, because a machine that stops holds up every trade behind it.
A compact footprint and good visibility, since the machine works inside a site that is already occupied by other trades.
Tell MINGYI the building work you do and how many sites you run, and we will confirm the machine and attachment set.

E-mail : Canopy or enclosed cab on this class of machine A canopy keeps the machine light and the operator aware of the surroundings, which suits short jobs in warm weather. A fully enclosed cab is specified where rain, dust or cold are part of the working year, and it can be added to the unit in daily use as a retrofit rather than only at build time. The cab decision follows the climate and the hours. Operators working a full shift in a machine of this size benefit from a sealed cab with wipers and heating; operators stepping on and off every few minutes usually prefer the canopy for the visibility and the quick exit. Orchard, vineyard and farm use of mini excavator for building contractors Ditching, fertilising and drainage on farmland suit the equipment on site because the work is spread over a large area in short bursts. The machine travels behind a pickup and works where it stops. Farms also use the machine itself for general maintenance - clearing a watercourse, repairing a track, loading a spreader. One carrier with a few attachments covers most of the jobs that would otherwise wait for a contractor. Working a mini excavator for building contractors in confined spaces Confined sites are decided by dimensions. Overall width, tail swing and the space needed to work the arm are what let the model in question operate inside a building, between walls or in a courtyard. Clearance above matters as much as around. Door heights, pipework and overhead services set the limit for the machine in that duty indoors, and measuring them first avoids a machine that arrives and cannot be used. OEM and fleet customisation of mini excavator for building contractors Customisation also covers the specification sheet. A fleet buyer may want every machine built for the work delivered with the same coupler, the same engine and the same tool kit so training and parts stock stay simple. Documentation can be prepared to suit the importer. Manuals, parts books and decal sets for the unit on the job can be supplied with the buyer's own branding where the order size justifies it. Engine options behind mini excavator for building contractors Two buyers can order the same this class of machine and receive different engines. The decision is rarely about peak power; it is about which parts counter is closest to the site and which engine the local mechanic already knows. Engine choice is also an emissions and documentation question for some markets. Listing the available units with the equipment in service enquiry lets the factory confirm what can be supplied and documented for the destination country. Track choice for mini excavator for building contractors Undercarriage selection is a ground question, not a preference question. The unit in daily use running on finished paving needs rubber; the same machine on demolition rubble or rock wears rubber quickly, so steel with rubber blocks becomes the better answer over a full season. Track type changes what the machine can cross and what it leaves behind. Buyers specify rubber for lawns, driveways and municipal work, and steel with rubber blocks for sites where sharp material would cut a rubber belt in a week. Interior and light demolition with mini excavator for building contractors Interior demolition is an access and a weight question. A machine of this size that fits through a doorway and works on a suspended floor does jobs that would otherwise be done by hand or by a larger machine that cannot enter. Breaking out a floor slab, a wall footing or a concrete step is routine work for the equipment on site with a breaker. The machine is small enough to work inside and heavy enough to run the tool at a practical rate. Matching the machine itself to ground conditions Soft ground is a flotation problem, not a power problem. The model in question on wide rubber tracks crosses lawn, sand and cultivated soil that would stop a narrower machine or a wheeled unit of the same capacity. Mixed sites are common and argue for a compromise specification. Most buyers choose rubber for the machine in that duty and accept the wear, unless the majority of the work is on material that will damage it. Acceptance checks when the unit on the job arrives Delivery day is the best time to find a problem. Checking the specification against the order, the fluid levels, the fasteners and any transport damage while the equipment in service is still on the trailer is faster than claiming later. Documentation should arrive with the machine. Parts list, service schedule and any certificates for a machine built for the work are what the workshop needs later, and they are much easier to obtain at delivery than in month six. Hiring versus owning this class of machine The choice follows the hours. Work that fills a few weeks a year is usually better hired, while the unit in daily use that would be on site most weeks starts to justify ownership once the transport and booking time is counted. Availability is part of the decision. Owning a machine of this size means it is there on the day the ground is ready; hiring means competing for the same machine at the same time as everyone else in the season. Lifting and material handling with the equipment on site Stability changes with reach. A load the machine itself handles close in becomes a different proposition at full extension, so the working radius belongs in the plan before the lift rather than during it. Ground condition under the machine is part of every lift. Soft or uneven support is the common factor in handling incidents, and checking it takes less time than recovering the model in question that has settled. Operator technique for the machine in that duty Output on a compact machine comes from placement rather than power. An experienced operator keeps the unit on the job working inside the swing arc, positions once and digs a full run instead of repositioning for every bucket. Stability is the third. A machine built for the work working across the tracks rather than over the corners keeps the machine steady and the undercarriage loaded evenly, which shows up as track life at the end of the season. Trenching work with the equipment in service Service trenches are the most common reason this class of machine is hired. Water, sewage, cable and gas runs are narrow, shallow and often close to existing services, which is exactly the work a full-size machine cannot do safely. Trench quality depends on the bucket width and the operator, not on machine size. The unit in daily use with a narrow bucket and a swing boom cuts a clean run along a boundary without disturbing the ground either side of it. Export packing and shipping of a machine of this size Machines leave the factory prepared for container or flat rack shipment. The equipment on site is normally shipped with the attachment set and the spare parts list agreed in advance so the container is planned once. Buyers who import regularly plan the spare parts with the machine. The machine itself ordered with a wearing-parts kit arrives ready to work rather than ready to wait for the first service interval. Getting the model in question through a narrow gap Access decides the machine before output does. With the machine in that duty the limiting dimension is usually the widest point on the way in, so measuring the gate, the corridor and the turning space first saves a wasted delivery and a second visit. Contractors who buy the unit on the job normally have one job in mind that nothing else reaches. The purchase order follows the access measurement, not the other way round, and the build sheet is then settled around it. Specification data for a machine built for the work The figures below are the factory figures for the models most often matched to the equipment in service. They are the numbers to check against the site: the depth the work needs, the reach from one position, and the width of the narrowest point on the route in. These are the reference figures for this class of machine. MINGYI confirms the final build sheet, including engine and attachment choices, against the destination and the job list before production. Commissioning the unit in daily use on site The first hour on site should be slow. Before a machine of this size is put to work the fluid levels are rechecked after transport, the fasteners are gone over and the machine is run light so that anything loosened in transit shows up early. Moving the equipment on site between sites Travel time is not working time, and it should be planned as its own item. The hours spent moving the machine itself between jobs are hours not worked, and a trailer that matches the machine reduces them every single trip. A quick coupler is the single option that changes how a machine is used day to day. Fitted to the model in question, it turns an attachment change from a two-person workshop job into a task the operator does alone in minutes. For a fleet that shares attachments between machines, a common coupler standard matters more than the coupler brand. The machine in that duty that picks up the same tools as the larger machines keeps the rack usable across the yard.




Reference specification — mini excavator range 15W 20-1W 09L 30-2L Operating weight 1400 kg (3086.47 lb) 1800 kg (3968.32 lb) 1100 kg (2425.08 lb) 2400 kg (5291 lb) Transport size (L×W×H) 2200 × 930 × 2250 mm 2550 × 1100 × 2200 mm 2300 × 720 × 1870 mm 2800 × 1500 × 2500 mm Max digging depth 1630 mm (64.17 in) 1800 mm (70.87 in) 1400 mm (55.12 in) 2200 mm (86.61 in) Max digging height 2750 mm (108.27 in) 2820 mm (111.02 in) 2800 mm (110.24 in) 2900 mm (114.17 in) Max dumping height 1960 mm (77.17 in) 2050 mm (80.71 in) 1880 mm (74.02 in) 2100 mm (82.68 in) Max digging radius 2900 mm (114.17 in) 3050 mm (120.08 in) 2490 mm (98.03 in) 3330 mm (131.1 in) Max digging distance 2100 mm (82.68 in) 2300 mm (90.55 in) 2000 mm (78.74 in) 2700 mm (106.3 in) Minimum turning radius 1300 mm (51.18 in) 1450 mm (57.09 in) 1400 mm (55.12 in) 1555 mm (61.22 in) Travel speed 3 km/h (1.86 mph) 5 km/h (3.11 mph) 3 km/h (1.86 mph) 7 km/h (4.35 mph) Gradeability 30° 30° 30° 30° Fuel consumption 1-1.3 L/h (0.264—0.343 gal) 2-3 L/h (0.528—0.793 gal) 1-1.3 L/h (0.264—0.343 gal) 2-3 L/h (0.528—0.793 gal) Fuel tank capacity 10 L (2.64 gal) 16 L (4.23 gal) 8 L (2.11 gal) 16 L (4.23 gal) Hydraulic oil tank 16 L (4.23 gal) 18 L (4.76 gal) 16 L (4.23 gal) 18 L (4.76 gal) Dozer blade lift height 180 mm (7.09 in) 180 mm (7.09 in) 180 mm (7.09 in) 230 mm (9.06 in) Dozer blade drop depth 210 mm (8.27 in) 210 mm (8.27 in) 210 mm (8.27 in) 280 mm (11.02 in)
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