How to Spot a Repainted Machine: 12-Point Checklist Before Buying Used Machinery from China
Buying used machinery from China can save you 30–50% compared to new equipment — but only if you know what you are looking at. The most common trap overseas buyers fall into is the repainted machine: a worn-out unit that has been cleaned up, sprayed with fresh paint, and sold as “new” or “almost new” at a price that seems too good to be true.
After 14 years in China’s agricultural and construction machinery belt, we have seen every version of this trick. This 12-point checklist takes about 10 minutes to run through on a live video call — and it is the same list we use for every inspection we do for our clients.
1. Nameplate and Serial Number
Check the manufacturer’s plate. On a genuinely new machine the serial number is cleanly stamped and matches the documents. On a repainted unit the plate is often missing, replaced, or the number has been filed or double-stamped.
2. Paint Thickness and Texture
Fresh paint that is visibly thick is a red flag. Repaint jobs usually apply 2–3 coats to cover rust. Tap the panels — the sound differs from factory paint. Look for overspray on hoses, wiring and rubber parts; a factory never paints those.
3. Welding Points
Factory welds are neat, uniform and consistent. Extra welds, rough beads, cut marks or body filler (putty) indicate repairs after an accident or heavy use.
4. Bolts and Nuts
Check the bolt heads for wrench marks. If many bolts show wear or scratches, the machine has been fully disassembled and rebuilt — that is a refurbish job, not a new machine.
5. Hydraulic System
Look for oil leaks at hoses, cylinders and fittings. Refurbished machines often get cheap replacement hoses that leak within weeks. Fresh oil smears on a “clean” machine mean the leak was just wiped away.
6. Hour Meter
Ask for a photo of the hour meter — then think. A 2-ton mini excavator showing 200 hours is not believable. An unusually low reading for the machine’s size and age usually means the meter was replaced or reset.
7. Rust in Hidden Areas
Rust on the chassis, behind the cab, or inside the frame tells the real story. A repaint covers visible rust; it cannot hide the rust that sits where nobody looks first.
8. Tires and Tracks
Factory tracks have fresh rubber with no patches. On refurbished units, tires are often painted black to hide cracks. Bend the rubber — if the paint cracks, it is a repaint.
9. Empty Weight
Compare the machine’s weight against factory specifications. If it is noticeably lighter, components were replaced with cheaper, lighter parts during the rebuild.
10. Factory Documents
Ask for the Certificate of Origin, factory test report and shipping evidence. A genuine seller can show these. A refurbisher usually cannot — or offers a long story about why not.
11. Written Warranty
Be very careful with machines sold “as-is” with no warranty. Insist on a written warranty of at least 6 months. A seller who believes in the machine will sign it.
12. Live Running Video
Ask for a video of the machine started and running for 10 minutes — from the factory or exporter, not stock footage. Watch it start cold, run under load, and check for smoke, noise and leaks.
The Price Rule: Too Cheap Is the Most Expensive
A price far below market is not a bargain — it is the first sign that the machine is a repaint. Always compare with official factory prices, and always get real-time photos and video before you transfer a single dollar.