· Aurora Trading
A used excavator from China can cost far less than a new one, but only if you know exactly what you are buying. This guide explains how Guangzhou Aurora Trading inspects, verifies and ships used heavy equipment, using real photos and findings from our own inspection reports.

China has become a major market for used construction machinery. Dealer yards in Shanghai and across East China hold large stocks of excavators, loaders, skid steers and cranes from Caterpillar, Komatsu, Hitachi, Kubota and Case, next to newer Chinese brands such as Sany and SDLG.
What makes it attractive:
What goes wrong when nobody checks:
Photos and videos sent by a seller are not an inspection. An independent inspector who stands next to the machine, starts it, works it and photographs every system is the only reliable way to know what you're paying for.
We inspect and source most types of used earthmoving and lifting equipment. The table shows the machines buyers ask us about most often, with what we focus on for each type.
| Machine type | Brands and models we often handle | Typical jobs | What our inspector focuses on |
|---|---|---|---|
| Crawler excavators (20–45 t) | CAT 320, 325, 330, 336 · Komatsu PC200, PC220, PC300, PC400, PC450 · Hitachi ZX200, ZX350 · Sany SY215, SY365 | Earthworks, quarries, mining, demolition | Engine, main pump, swing bearing, boom and arm cracks, undercarriage wear |
| Mid-size excavators (12–15 t) | Hitachi ZX135 · CAT 312, 313 · Komatsu PC130 · Sany SY135 | Roadwork, utilities, city sites | Short-tail counterweight damage, swing play, pins and bushings |
| Mini excavators (1–6 t) | Kubota U35, KX series · Sany SY35, SY60 · CAT 303, 305 | Landscaping, trenching, farms, tight spaces | Rubber tracks, swing boom, blade, engine smoke, hydraulic hoses |
| Skid steer loaders | Case 440 · Bobcat S-series · CAT 226, 246 | Material handling, site cleanup, attachments | Lift-arm pins, drive chains, hydrostatic drive, tyres, quick-attach plate |
| Wheel loaders | SDLG L956F, LG936 · CAT 950, 966 · Komatsu WA380 | Loading trucks, aggregates, ports | Transmission, articulation joint, bucket teeth, axle leaks |
| Truck-mounted cranes | XCMG QY25K · Zoomlion and Sany 25–50 t · Tadano and Kato | Lifting on construction and industrial sites | Boom sections, wire rope, outriggers, load-moment indicator, truck chassis |
If your machine isn't on this list, ask us. If it is in China, we can usually find, inspect and ship it.
Every brand has its own weak points. Here is what our inspectors look at first on the machines buyers ask about most.
Older CAT excavators such as the 325C are still in high demand because they are simple to repair and parts are easy to find worldwide.
CAT models we handle most often:
| Type | Models |
|---|---|
| Mini excavators | 303, 305.5E2, 306, 307, 308 |
| Mid-size excavators | 312C, 312D, 313D2, 315D, 318D |
| Excavators (20–25 t) | 320C, 320D, 320D2, 320GC, 323D, 324D, 325C, 325D |
| Large excavators | 329D, 330C, 330D, 336D, 336D2, 349D |
| Wheel loaders | 950H, 962H, 966H, 980H |
| Bulldozers | D6R, D7R, D8R |
| Motor graders | 140H, 140K |
| Backhoe loaders | 416E, 420F, 428F |
| Skid steers | 226B, 246C, 262D |
Komatsu excavators are among the most common used machines in China. The PC200 and PC220 are mid-size workhorses, while the PC400-7 and PC450-7 are big machines for heavy earthmoving and quarry work.

Komatsu models we handle most often:
| Type | Models |
|---|---|
| Mini excavators | PC55MR, PC60-7, PC78US |
| Mid-size excavators | PC120-6, PC130-7 |
| Excavators (20–25 t) | PC200-7, PC200-8, PC210-8, PC220-7, PC220-8, PC240 |
| Large excavators | PC300-7, PC350-7, PC360-7, PC400-7, PC450-7, PC450-8 |
| Wheel loaders | WA320, WA380-3, WA380-6, WA470 |
| Bulldozers | D65, D85, D155 |
| Motor graders | GD511, GD555 |
The Hitachi ZX135US is a short-tail excavator of about 13 tonnes with roughly 125 hp, digging to around 5.5 m. Its compact rear makes it popular for roadwork and city sites.
Hitachi models we handle most often:
| Type | Models |
|---|---|
| Mini excavators | ZX55U, ZX70 |
| Mid-size excavators | ZX120, ZX130, ZX135US |
| Excavators (20–25 t) | ZX200-3, ZX210, ZX240 |
| Large excavators | ZX330, ZX350, ZX360, ZX470, ZX870 |
The Kubota U35 is a compact-tail mini excavator of about 3.7 tonnes with a 28 hp engine and roughly 3.1 m digging depth. It is one of the most requested minis for landscaping, utilities and farms.
Kubota models we handle most often:
| Type | Models |
|---|---|
| Compact-tail mini excavators (U series) | U17, U27-4, U35, U35-4, U48-4, U55-4 |
| Conventional mini excavators (KX series) | KX018-4, KX033-4, KX040-4, KX057-4, KX080-4, KX161 |
| Compact track loaders | SVL75, SVL95 |
| Skid steers | SSV65, SSV75 |
The Case 440 (Series 3) is a large-frame skid steer of about 3.2 tonnes with around 84 hp and a rated operating capacity of about 1,000 kg. It runs a wide range of attachments: buckets, forks, breakers and sweepers.
Case models we handle most often:
| Type | Models |
|---|---|
| Skid steers (classic series) | 410, 420, 430, 440, 445, 450, 465 |
| Skid steers (newer series) | SR175, SR210, SR250, SV280, SV300 |
| Compact track loaders | TR270, TR320, TV380 |
| Backhoe loaders | 580L, 580 Super N, 590 Super N |
| Excavators | CX130, CX210, CX240, CX350 |
| Wheel loaders | 621F, 721F |
Chinese brands give buyers newer machines for less money. Sany excavators (SY35 to SY365) and SDLG wheel loaders (LG936, L956F) are widely available, and parts are easy to source in China.
Sany and SDLG models we handle most often:
| Brand and type | Models |
|---|---|
| Sany mini excavators | SY16C, SY26U, SY35U, SY55C, SY60C, SY75C, SY95C |
| Sany excavators | SY135C, SY215C, SY235C, SY265C, SY365H, SY485H, SY500H, SY750H |
| Sany truck cranes | STC250, STC500, STC750 |
| SDLG wheel loaders | LG918, LG936L, LG946L, LG953, LG956L, LG958L, L956F, L968F |
| SDLG excavators | LG6150E, LG6210E, E6135F, E6210F, E6250F |
| SDLG motor graders | G9190, G9220 |
A truck crane is two machines in one: a crane and a road truck. Both need checking. Common used models include the XCMG QY25K and 25–50 tonne units from Zoomlion and Sany, next to Japanese Tadano and Kato cranes.
Crane models we handle most often:
| Brand and type | Models |
|---|---|
| XCMG truck cranes | QY25K, QY25K5, QY50K, QY70K, XCT25, XCT55 |
| Zoomlion truck cranes | QY25V, QY50V, ZTC250, ZTC550 |
| Sany truck cranes | STC250, STC500, STC750 |
| Tadano and Kato (Japanese) | Tadano GR-250N, GR-500EX · Kato KR-25H, NK-250 |
| Truck-mounted loader cranes (crane on a cargo truck, 3–16 t) | XCMG SQ series · Unic URV series · Palfinger |
Our inspector goes through every machine in the same order, so nothing is skipped and every report can be compared. Each point is photographed, and the function test is filmed.
Step 1: Confirm it is the right machine. Before anything else, we match the machine to your order: brand, model, serial number (PIN) and working hours.

Step 2: Check every system. Then we work through the machine from the engine to the cab.

| System | What we check | Typical red flags |
|---|---|---|
| Identity and papers | Nameplate, PIN, engine number, year, hour meter, ownership documents | Missing or loose nameplate, PIN that doesn't match the model, hours that don't match the wear |
| Engine | Cold start, idle and full-throttle sound, exhaust smoke, blow-by, oil and coolant condition, leaks | Blue or black smoke, heavy blow-by from the breather, oil in coolant, hard starting |
| Hydraulics | Main pump, control valve, cylinders, hoses; cycle speed of boom, arm and bucket | Slow or weak movement, drifting cylinders, leaking seals, recently replaced hoses on only one side |
| Swing system | Swing bearing, swing motor and gearbox, bearing bolts, slewing play | Oil around the bearing, missing bolts, knocking when stopping a swing |
| Undercarriage | Track shoes, links, rollers, idlers, sprockets, track tension; shoe width measured | Uneven or polished shoes, worn sprocket teeth, leaking rollers, cracked track frame |
| Structure | Boom, arm, bucket, pins and bushings, counterweight, main frame | Cracks, fresh welds, plates added to hide repairs, excessive pin play |
| Electrical and cab | Monitor, warning lights, A/C, wipers, lights, horn, seat, glass | Fault codes, dead gauges, broken glass, missing panels |
| Function test | Travel forward and back, turning, full swing, full dig cycle, lifting, filmed on video | Hesitation, overheating, warning alarms during work |
| Measurements | Track shoe width, bucket width, key dimensions on request | Size different from the spec sheet you were given |
On request, we can also take engine oil samples for lab analysis, check fault codes with a diagnostic tool, or run a crane load test with a test weight.
Both machines below started and ran normally in the function test, so at first glance they looked fine. But the full inspection found problems in each that seller photos would never show: the first needed repairs before it could be accepted, and the second was rejected outright. These photos come straight from two of our reports.
Result: PENDING. The machine worked well, but it could only be accepted once the defects below were repaired. The report listed the repairs needed before the buyer paid.

A swing-bearing leak and missing bolts are repair costs the buyer can negotiate off the price, or ask the seller to fix before loading. Found after arrival, they come out of the buyer's pocket.
Result: FAILED. The machines were rejected outright: we found 12 major and 7 minor defects, and one machine was the wrong model.


The buyer had also asked for replaced filters, correct serial numbers, the year of production and rust-proof wrapping for shipping. Our report answered each request with Passed, Failed or Pending, so the buyer knew exactly what to go back to the supplier with.
You get a clear PDF report, usually 20–30 pages, that you can read in five minutes and forward to your bank, partner or end customer. Buyer and supplier names are kept confidential, as in the samples below.


Every report includes:
Reports are written in English with a bilingual Chinese–English header, and we also write them in Arabic for buyers who prefer it.
You can use us for one step or for the whole purchase, from finding the machine to delivering it to your port or your door.
You found a machine online or through a dealer. We go to the yard, inspect it with the checklist above and send you the full report, photos and videos. We work for you, not for the seller, and we have no stake in whether you buy.
Before you send money to a supplier you have never met, we check:
A machine can pass inspection and still be swapped, damaged or loaded badly. Our inspector returns on loading day to:
Don't have a machine yet? Since 2011 we have worked with a network of used-equipment yards and dealers across China. These are suppliers we have worked with before and stand behind, which lowers your risk. Tell us the model, year range, hours and budget, and we shortlist machines, inspect them and send you the options with reports.
The right shipping method depends mostly on the machine's size and weight, and on the services available to your port.
| Machine | Usual shipping method | Notes |
|---|---|---|
| Mini excavators (Kubota U35 class), skid steers (Case 440 class) | 20' or 40' HQ container | Several small machines can share one container to cut cost per unit |
| Mid-size excavators (12–22 t) | Flat rack container | Bucket and sometimes arm removed, machine lashed and blocked |
| Large excavators (30 t and above) | Flat rack, RoRo or break-bulk | May need partial dismantling: bucket, arm, counterweight |
| Wheel loaders, truck cranes | RoRo where available, otherwise flat rack or break-bulk | Truck cranes are driven on and off; check road-vehicle import rules at destination |
Before you buy, check two things for your country:
We ship by sea from Chinese ports and offer DDP (delivered duty paid) to the UAE, Saudi Arabia, Turkey, Europe, the UK, Canada, the USA and Latin America, so the price you agree covers the machine all the way to you.
Yes. Send us the listing or the seller's contact and the machine's location. We arrange the visit with the seller and inspect on your behalf.
No. Our report, photos and videos let you decide from your office. Many of our buyers never visit the yard.
Not always with certainty. We compare the meter with the machine's own monitor records and with wear on pins, pedals, seat, controls and undercarriage. When the hours and the wear don't match, the report says so clearly.
You decide. You can negotiate the price, ask the seller to repair and have us re-inspect, or walk away before paying the balance. That is the point of inspecting before payment.
Yes. In the Komatsu case above, we inspected two excavators in one visit and reported on each one separately.
Yes. Truck cranes get two checks: the crane (boom, rope, outriggers, safety systems) and the truck (engine, gearbox, brakes, papers).
Yes. Our team includes Arabic speakers, so we can write the report in Arabic, English, or both, and discuss the findings with you by phone or WhatsApp in Arabic.
Tell us the machine you want, or send us the one you found. We'll reply with the next steps and a quote for inspection, sourcing or shipping.
Guangzhou Aurora Trading has provided sourcing, quality inspection and freight logistics from China since 2011.
Machine specifications quoted above are approximate and vary by version and options: