7 Things to Check Before Buying a Used Truck Crane

Looking for a used truck crane from China? A second-hand truck crane is two machines in one: a road chassis and a lifting crane. Get either side wrong and the deal turns into a repair bill. Check only the crane and you may miss brakes, axles or frame cracks. Check only the truck and you may miss hydraulic leaks, boom fatigue and worn wire rope. The range is wide from a 25 ton city truck crane for roofing and utility work to a 500 ton all-terrain unit for wind farms and petrochemical projects.

The seven points below work across that range, with notes on where the larger units change the inspection.

Quick Pass

System	Pass evidence	Fail warning
Nameplate and hours	Numbers match, wear matches meter	Re-stamped plate, worn parts on low-hour unit
Boom and rope	Clean welds, smooth extension, tight latch	Cracks, kinked rope, sticky boom
Outriggers	Level ±1°, no cylinder drift	Settlement, bent pads, rocking
Chassis	Good brakes, even tires, steady idle	Frame cracks, heavy smoke
Hydraulics	Steady pump, load holds 60s	Drifting hook, whining pump
LMI	Reads correct under known load	Broken or miscalibrated LMI
Documents	Numbers match invoice and export files	Mismatch, missing ownership proof

1. Nameplate, Hour Meter and Real Working Condition

Start with the nameplate, not the paint

Find the nameplate of the used crane first. Read the brand, model, serial number and rated capacity off the plate itself. A clean paint job hides more than it shows. If the nameplate is rusted over, missing or has been re-stamped, treat the hours and the whole service history with caution.

The hour meter tells a partial story

Hour meters count engine time. They do not count lift cycles. A used 25 ton truck crane that lifted pipes gently for 8,000 hours can be healthier than a used 50 ton truck crane that ran double shifts for 4,000 hours. Meters can also be reset. Use them as one data point, not the verdict.

Read the wear on the seat, pedals and paint

Seat wear, pedal wear, floor mat condition and fade on the boom base are hard to fake. If a low-hour used truck-mounted crane has worn boom pads, frayed rope, scored cylinder rods and weak brakes, the hours are either wrong or the second-hand truck crane did heavy duty. Ask for the service book — oil changes, valve adjustments and hydraulic oil flushes tell you how the previous owner treated it.

2. Boom, Wire Rope and Hook

Walk the boom from root to tip

Extend each section one at a time. Look along the boom root and pin joints, these are fatigue points, and a hairline crack here means the pre-owned crane should not be bought. Dents, bent plates and corrosion on telescopic sections change the stress path. Extension should slide smoothly, rough or sticky movement means worn wear pads. Pads are cheap to replace, but rough extension over years means neglected maintenance.

Rope, sheaves and latch

Run a gloved hand along the wire rope. Broken wires, kinks and bird-caging all mean replacement soon. Check the hook latch,which must snap closed and stay closed. Spin the sheaves by hand, side play or roughness means worn bearings.These wear faster than the main boom and are easy to skip. On units above 150 tons, also check the fly jib pins, auxiliary rope and anti-two-block limit switch.

Ask for a full-length video

A photo does not show play. Ask for a video with the boom fully extended, viewed from the side, so you can see any sag or twist between sections. Shoot it at normal speed on a phone, not slow motion， that will hides the jerky movements that point to worn wear pads. Have the operator extend and retract the boom twice in the same shot, so you can compare the smoothness on the second pass and catch any binding that only shows up after a few cycles.

3. Outriggers and Frame Stability

Set up on hard, flat ground

Deploy every outrigger to full length. The level bubble should hold within a small degree，then watch each cylinder for settlement over ten minutes. A cylinder that drops visibly means an internal seal leak. And the crossbar must extend evenly because of uneven movement hints at frame twist.

Read the pads

Bent pads, welded repairs and missing pivot pins tell you the second-hand crane previously lifted on soft ground or overloaded. If the crane rocks on a hard floor, the frame may be twisted,please walk away and don’t buy it.

Match the span to your sites

A used 25 ton truck crane often runs a 5-7 meter span, a used 100 ton truck crane may extend 7 meters. A crane that cannot reach full span on a narrow urban street loses rated capacity. Check the outrigger footprint against your typical job sites before you buy.

4. Chassis, Engine and Roadworthiness

Frame, axles and tires

Walk the frame. Look for cracks near the turntable mounts and tow-hook area. Check tire wear across each axle, uneven wear means alignment or suspension problems. On multi-axle used 200 ton truck crane and used 500 ton all-terrain crane units, inspect the steering linkages on the rear axles. These are expensive to rebuild.

Read the smoke

Cold start should fire in seconds. After warm-up, judge the exhaust: blue smoke means ring wear, black smoke means fuel or injector trouble, and white smoke means coolant in the cylinders. Check coolant, oil and fuel for contamination. Milky oil on the dipstick confirms water is mixing. Let the engine reach operating temperature and confirm the idle stays steady.

Drive the used crane

Drive the truck if possible. Gear changes should be smooth, brakes must stop the truck in a straight line,steering should not have more than an inch of play. A used truck crane for sale must legally drive to your job site and onto a ship. Road worthiness is a purchase condition, not a bonus.

5. Hydraulics Under Load

Leaks by location

Look under the pump, control valve, rotary joint and lift cylinders. Fresh oil at a seal means a recent failure that may cost little. Grime-caked oil that has dripped for months means a slow leak the previous owner ignored. Oil on the swing circle usually points to a rotary joint seal, which is more expensive to rebuild.

Test every motion with a load

Ask for a working video showing boom extension, luffing, swing, hoist up and hoist down — all under a safe load, not empty. Movement should be smooth, jerky or slow points indicate pump wear, valve problems or contaminated oil. Pull the dipstick: clean transparent oil suggests recent service, milky oil means water, burnt-smelling black oil means neglected overheating.

The main hoist brake test

On truck cranes over 100 tons, hold a test load for 60 seconds. The hook must not drift down, a creeping hoist means a worn brake or balance valve. On a used 300 ton or 500 ton truck crane that repair can reach five figures.

6. Load Chart and LMI

Match the chart to your real job

Pull the rated load chart. Match your typical lift, load weight, radius, boom length against with the chart. A second-hand truck crane that looks clean but cannot lift your heaviest load at your typical radius is the wrong unit. Write the numbers down before you shortlist. Remember that your real working radius is usually larger than the number on paper, because you cannot park the truck right next to the load.

The LMI must read true

The load moment indicator must read correctly under a known load. A broken or miscalibrated LMI means you cannot trust the chart. OSHA 1926.1412 requires functional testing of safety devices before use. If the LMI is dead, recalibration on larger machines is not a cheap fix. Ask the operator to trigger the alarm on camera, so you can see it actually beeps and cuts out before the rated limit.

7. Documents, Emission and Export Shipping

Match every number

The chassis VIN, engine serial and crane serial on the nameplate must match the invoice, ownership certificate and export declaration. One mismatch can hold customs for weeks, ask the seller to scan every document and send them to you before payment. Run the numbers yourself against photos of the actual nameplate instead of just the PDF.

Emission is a hard entry rule

Some countries reject Tier 2 or equivalent second-hand truck crane units. Others accept them freely. Confirm the emission standard your destination allows before you shortlist, not after you pay.Check with your local customs broker, rules always change and the broker handles these entries every week.

Ro-Ro is the easy way out

Most used truck cranes drive onto a Ro-Ro ship under their own power. No disassembly is needed, ocean transit runs 20 to 45 days. For used 300t truck crane shipment and used 500t truck crane shipment that exceed Ro-Ro limits, book a flat-rack or breakbulk and confirm dimensions before you sign.

Self Inspection or Third Party Inspection: Which One Do You Need?

Before you pay, the biggest question is who opens the hood. A used truck crane is a complex machine. It combines a road chassis, a hydraulic lifting system, an electronic load monitor and a rotating superstructure. A buyer who walks the yard alone often catches the obvious things: paint condition, visible leaks, tire wear. The expensive defects sit deeper. They show up as slow cylinder drift, a miscalibrated LMI, hidden welds on the boom root, or a main hoist brake that creeps under load.

Deciding between self inspection and a third-party survey comes down to three factors: your own experience, the size of the machine and the size of the risk. If you already run a fleet and know the brand, you may not need to spend the surveyor fee. If you are new to the brand, or buying a 200-ton unit, a few hundred dollars in inspection can prevent a five-figure repair.

Check point	Self inspection	Third-party inspection (SGS / Bureau Veritas)
Who does the work	You or your own mechanic	Independent surveyor sent to the yard
What it covers	Visual walkaround, start-up, basic drive	Hydraulics test, load chart test, LMI calibration, boom inspection, electronics check
Cost	Free (your time)	500\u20131,500 USD per machine
Best for	Buyers who already run the brand, 25\u201350 ton units	New buyers, 200 ton+ units, first-time import
Weakness	Misses hidden defects, no written proof	Adds lead time, report is only as good as the surveyor
Use in negotiation	Good for spotting obvious issues	Written report pushes price down, protects your payment
Check point	Self inspection	Third-party inspection (SGS / Bureau Veritas)

What Happens After the Crane Lands: Costs Buyers Often Forget

Spare parts to carry in the first shipment: Ship common spares with the crane: oil filters, fuel filters, seal kits, a wire rope and a set of wear pads. A used 25 ton truck crane needs these within the first 200 hours. Buying them in your local market costs more and delays the first service. Chinese spare parts also fit cheaper and arrive faster than European or Japanese alternatives on the same model. Pack them into the same container or Ro-Ro slot, so they land with the machine.
Registration, insurance and permits: A used truck crane needs road registration and cargo insurance once it lands. Some countries also require a crane operator license and a periodic load test certificate. Budget for these before the unit starts work. Road rules differ by country: some require local homologation, others need a weight certificate. Check with your customs broker before the ship sails, not after the unit arrives.
First service is not optional:Change engine oil, hydraulic oil and filters within the first 100 to 200 hours. The previous owner may have run long on intervals. A cheap first service prevents an expensive breakdown on your first job. Keep the service book updated. A documented service history also raises the resale value when you decide to sell the unit later.

FAQ from Buyers

Is 8,000 hours too many for a used truck crane?

Not always. A city 25-ton crane at 8,000 light hours often outruns a 4,000-hour unit from a quarry. Judge the wear, not the number.

Which Chinese brand should I choose: SANY, XCMG or Zoomlion?

SANY, XCMG and Zoomlion are all first-tier Chinese brands. Pick the one whose dealer and parts network is already active in your country.

What is a fair used truck crane price for a 50-ton unit?

EXW China usually runs 90,000–120,000 USD, depending on year, hours and brand. Add ocean freight, insurance and any destination duty.

What emission stage can I import?

It depends on your country. Check local customs rules before shortlisting; some destinations reject older Tier 2 units, others accept them.

How long does shipping take?

A second-hand mobile crane usually drives onto a Ro-Ro ship. Ocean transit runs 20–45 days. 300-500 ton units need a confirmed flat-rack or lifting plan.

Can I buy a 500-ton used truck crane from China?

Yes, but stock is thinner. Used 500 ton truck cranes from Liebherr appear from time to time, expect 3–8 weeks to source.

What documents do I need to import?

Commercial invoice, packing list, ownership proof, export declaration and bill of lading. Some countries also require a pre-shipment inspection certificate.

Find Your Used Truck Crane Supplier

Every used truck crane for sale that leaves Imachine goes through the seven-point check above: hydraulics, boom, outriggers, chassis, hours, brand parts and export documents. Buyers get nameplate photos, an inspection report and a working video before they pay.

The yards hold close to 100 units at any time, from 25-ton working truck cranes to 500-ton all-terrain lifters, stocked across SANY, XCMG, Zoomlion, Baoer and Liebherr. Imachine is part of Drillmaster Group, with 17+ years in used construction machinery and clients in 80+ countries.

Tell Imachine your project — tonnage needed (25t to 500t), working conditions, destination and budget — and the team will shortlist matching used truck cranes within one working day. Every unit ships with inspection photos, a working video and a clear export plan.