Work near the sea is hard on steel: salt air, wind-blown sand and humidity attack bare surfaces, pins, cylinders and undercarriage faster than inland duty. A machine assigned to coastal work needs to be specified with that attack in mind.
MINGYI builds mini excavators to order and treats seaside duty as part of the specification. When coastal duty is stated at the ordering stage, the machine is built with its corrosion protection arranged for that environment.
Seaside working conditions and the digging they need

Typical coastal tasks include drainage and ditch work behind beaches, repairs to sea defences, pool and landscaping work at coastal properties, and trenching on exposed developments. The digging itself is ordinary; the environment is not.
Salt spray reaches everything the machine presents to the wind, and sand adds abrasive load to pins, tracks and filters. Machines on this duty are washed more, inspected more and greased on a stricter rhythm than inland units.
Specifying a machine for salt air

Buyers should state coastal duty clearly when ordering, since the build takes it into account rather than treating the machine as a standard unit. The record kept against the machine notes the intended environment, informing later parts decisions.
The practical specification also matters: rinse access at the depot, a spares bundle weighted towards filters and fast-wearing items, and track choice suited to sand and shingle, rubber tracks for finished properties and steel tracks with rubber blocks for mixed shoreline ground.
A machine working in salt air is chosen for how it is built and how it is kept. MINGYI specifies for the coastal environment described by the buyer, so seaside duty takes service intervals rather than the machine itself.

Trailering and moving corrosion resistant mini excavator Transport weight and width decide whether a machine needs a specialist haulier. The excavator sized to travel on a standard plant trailer behind a suitable vehicle moves with the crew rather than on a scheduled low loader. Detachable components reduce transport length. This class of machine built with a removable arm section or a folding step fits a shorter trailer and may avoid an oversize movement permit. Quick coupler practice on corrosion resistant mini excavator A quick coupler is the single option that changes how a machine is used day to day. Fitted to the unit in daily use, it turns an attachment change from a two-person workshop job into a task the operator does alone in minutes. Couplers are specified early because they affect the arm and the hydraulic kit. Adding one to a machine of this size after delivery means new pins, new hoses and a fitment session; adding it at build time is a line on the sheet. Track choice for corrosion resistant mini excavator Rubber tracks suit paved and landscaped ground because they spread the machine weight and leave the surface intact. Steel tracks with rubber blocks are specified where the ground is rougher or the working day is longer, and the choice can be made per machine rather than accepted as a factory default. Undercarriage selection is a ground question, not a preference question. The equipment on site 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. Municipal and public works with corrosion resistant mini excavator Drainage repair, tree planting, footway reconstruction and cemetery work are all within the range of the machine itself. The jobs are small individually and continuous across the year. Noise and surface protection matter on public work. The model in question on rubber tracks across paving, with a sealed cab for the operator, suits the conditions better than a larger tracked machine. What owners should plan for beyond the corrosion resistant mini excavator The useful comparison is demand per working hour, not demand per machine. The machine in that duty that works more hours a year spreads its standing takes over more output, which is why utilisation usually matters more than the invoice figure. Downtime is the hidden line item. The unit on the job waiting on a part earns nothing while it stands, so parts availability and service access belong in the plan as much as fuel does. Daily checks and maintenance on corrosion resistant mini excavator Daily maintenance on a machine built for the work is a short list: engine oil level, coolant, track tension, hydraulic oil level and a look at the hoses. Ten minutes at the start of the shift prevents most of the failures that stop a machine. Greasing is the second item. The slew ring, the boom and arm pins and the bucket linkage on the equipment in service take grease daily in dusty work, and the intervals shorten further when the machine is used in water or mud. Getting the excavator through a narrow gap The first question on most job lists is whether the machine can reach the work at all. This class of machine is chosen against the narrowest point on the route - a garden gate, a doorway, a gap between two walls - because a machine that arrives and then cannot pass loses a day, not an hour. Contractors who buy the unit in daily use 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. Lifting and material handling with a machine of this size Lifting with a machine built to dig needs a plan. The load, the radius and the ground under the machine itself all matter, and the safe figure is the one on the chart rather than the one that looks possible. Stability changes with reach. A load the equipment on site 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. Engine options behind the model in question Power unit selection is settled against the service network the buyer already uses. MINGYI offers Kubota D722, Kubota D902, YANMAR, Changchai, Laidong, Runtong, YARMAX, Youpu 2V80 and Youpu 195, so a fleet running one brand of engine can keep the same filters, the same parts supplier and the same mechanic. Engine choice is also an emissions and documentation question for some markets. Listing the available units with the machine in that duty enquiry lets the factory confirm what can be supplied and documented for the destination country. Landscaping and ground care with the unit on the job Landscape contractors use a machine built for the work for planting holes, pond excavation, grading and retaining work. The machine is light enough to cross finished lawn and narrow enough to work between established trees. Grass cutting heads, rakes and tillers extend the equipment in service into ground care. The same carrier that digs a border in spring can cut and clear the same area later in the season. OEM and fleet customisation of the excavator Distributors and rental fleets usually need the machine to look like theirs. Paint, decals, seat colour and attachment branding can be specified on this class of machine at build time rather than applied after import. Documentation can be prepared to suit the importer. Manuals, parts books and decal sets for the unit in daily use can be supplied with the buyer's own branding where the order size justifies it. Specification data for a machine of this size Where the equipment on site is being specified for a job list, the table below gives the factory figures that matter most: what the machine weighs, how deep and how far it works, and what it measures on a trailer. These are the reference figures for the machine itself. MINGYI confirms the final build sheet, including engine and attachment choices, against the destination and the job list before production. The practical way to specify is to write the job list first: the narrowest access, the deepest trench, the heaviest tool and the surfaces the machine must cross. The model in question is then matched to those four numbers. Useful information to send with an enquiry includes working width, required digging depth, ground conditions and the attachment set. Those four items let the factory specify the machine in that duty that fits rather than a generic build.





Reference specification — mini excavator range 20-1WL 12L 15L 30-2L Operating weight 1900 kg (4188.78 lb) 1200 kg (2645.55 lb) 1400 kg (3086.47 lb) 2400 kg (5291 lb) Transport size (L×W×H) 2550 × 1100 × 2200 mm 2200 × 930 × 2250 mm 2200 × 930 × 2250 mm 2800 × 1500 × 2500 mm Max digging depth 1800 mm (70.87 in) 1700 mm (66.93 in) 1700 mm (66.93 in) 2200 mm (86.61 in) Max digging height 2820 mm (111.02 in) 2600 mm (102.36 in) 2750 mm (108.27 in) 2900 mm (114.17 in) Max dumping height 2050 mm (80.71 in) 1800 mm (70.87 in) 1960 mm (77.17 in) 2100 mm (82.68 in) Max digging radius 3050 mm (120.08 in) 2900 mm (114.17 in) 2900 mm (114.17 in) 3330 mm (131.1 in) Max digging distance 2300 mm (90.55 in) 2300 mm (90.55 in) 2300 mm (90.55 in) 2700 mm (106.3 in) Minimum turning radius 1450 mm (57.09 in) 1450 mm (57.09 in) 1450 mm (57.09 in) 1555 mm (61.22 in) Travel speed 5 km/h (3.11 mph) 3 km/h (1.86 mph) 3 km/h (1.86 mph) 7 km/h (4.35 mph) Gradeability 30° 30° 30° 30° Fuel consumption 2-3 L/h (0.528—0.793 gal) 1-1.3 L/h (0.264—0.343 gal) 1-1.3 L/h (0.264—0.343 gal) 2-3 L/h (0.528—0.793 gal) Fuel tank capacity 16 L (4.23 gal) 10 L (2.64 gal) 10 L (2.64 gal) 16 L (4.23 gal) Hydraulic oil tank 18 L (4.76 gal) 16 L (4.23 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)
Q. Who chooses the unit on the job?
A. The compact class exists for the jobs in between - too much for hand tools, too tight or too short for a full-size machine. Trenching on Monday, loading and grading through the week, fence posts and drainage to finish - the attachment set specifications the work. For corrosion resistant applications the practical route is to send the job list to the factory and let the build sheet answer it - which is exactly what this page invites.
Q. How do I choose the right machine for mixed work?
A. List the jobs in a normal month, find the narrowest access and the deepest dig, then size the machine to both. Send the list to the factory by email or LINE and the recommendation comes back matched to the work, not to the stock.
Q. Does MINGYI supply attachments with the machine?
A. Yes - buckets, breakers, augers, rakes and the rest of the working set ship with the carrier, matched to the hydraulic flow and the coupler. For corrosion resistant the package is confirmed on the build sheet, so machine and tools arrive together and start work together.
Keeping a service record for a machine built for the work
A written record is worth more than a good memory. Dates, hours and the parts fitted on the equipment in service turn a guess about the next service into a fact, and they are the first thing a buyer asks to see.
Pre-delivery inspection before the excavator leaves the shop
Inspection is a list, not a glance. Before this class of machine is released the fluid levels, belt tension, electrical connections and safety decals are each ticked off, and anything that fails stays in the shop rather than travelling with the machine.
Documents that travel with the unit in daily use
Keeping the documents together is part of ownership. The manual, the service record and the build sheet for a machine of this size belong in one folder, and the machine is easier to sell later when that folder is complete.
E-mail : sales@mingycn.com
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