A truck-mounted crane is the single most useful and most easily mis-specified machine in a distribution or construction-supply fleet. It promises one vehicle doing two jobs, and the reason so many of them disappoint is that neither half gets properly evaluated. The Foton LOXA crane on the Aumark EST-M 4x2 chassis pairs a 290 hp Cummins Euro VI chassis with an eight-tonne knuckle-boom crane, aimed squarely at Colombia and Paraguay. Before you get excited about capability, though, there is one line on the specification sheet that changes what you are actually buying.

One line decides what you are buying: Status says "Chassis"

Scroll past this and you will misjudge the whole purchase. The sheet lists Status: Chassis, not complete vehicle, and the platform function is recorded simply as Cargo Truck. Cargo box internal dimensions are marked with a dash, meaning unpublished. In plain terms: you are buying a homologated chassis cab under approved model BJ1226VMPHD-F3, and the crane, subframe and cargo body are fitted around it.

That is normal for this class of machine, and it is not inherently bad — but it does mean two responsibilities transfer to you. First, somebody has to certify the finished combination for registration and insurance in your country. Second, the 22,000 kg GVW is a chassis figure, and every kilogram of crane, subframe, body and outrigger structure comes out of it before you load a single pallet. Ask your dealer for a residual payload calculation for your exact body specification, and refuse to accept "about twelve tonnes" as an answer.

The crane: LOXA804 and what its numbers really mean

The crane is identified internally as LOXA804 with model code S200X4. Its headline rating is a maximum lifting capacity of 8,000 kg and a maximum lifting moment of 220 t·m. Maximum lifting height is 17.5 m, the boom measures 5.3 m retracted and extends fully to 15.5 m, and it luffs through a range of 0 to 75 degrees. Outrigger span fully extended is 5.8 m.

Read those numbers together and the operational picture is clear. Eight tonnes is available only close to the vehicle; as the boom extends towards its 15.5 m reach the permissible load falls away sharply, because lifting moment is what physically limits any crane. This is precisely why you should insist on the load chart rather than the brochure figure. If your typical lift is pallets off the side of the truck, you are fine. If you expect to place loads at eight metres' radius with the boom extended, ask what the chart permits at that radius before you write the capability into a customer contract.

"Nobody ever lifts eight tonnes at fifteen metres. Ask for the load chart, then price your jobs from that table and not from the headline rating."

The design details are worth noting because they affect maintenance. The boom is a single-cylinder four-section unit — fewer hydraulic circuits and less bush wear than multi-cylinder telescopic designs — with octagonal sections, which resist torsional better than rectangular ones. Hydraulic pressure is rated at 26 MPa with a system flow of 50 + 32 L/min, so there are two flow paths, typically one dedicated to stabiliser and boom functions. Get the hydraulic schematic with your order, along with seal kit numbers and recommended oil specification.

Powertrain: modern emissions, one missing number

The engine is the Dongfeng Cummins D6.7EVID290, displacing 6,700 cc and rated 213 kW or 290 PS. Behind it is a Fast Gear 8JS118TA-B eight-speed feeding a 10-tonne rear axle on a 5.143 ratio, with a 5.5-tonne front axle, air brakes with drums at both ends and ABS, seven 295/80R22.5 tyres, and a 260-litre aluminium fuel tank.

Now the omission worth flagging: engine torque is not published — the sheet carries a dash where the figure should be. On any truck that starts loaded on gradients, and particularly one whose crane work depends on steady hydraulic output, torque and the rpm at which it arrives matter at least as much as the power figure. Ask your dealer for it in writing. Also absent is any gross combination weight figure, so if you intend to pull a trailer behind the crane truck, that too needs confirming rather than assuming.

The 5.143 axle ratio question

With 290 PS through eight gears and a 5.143 axle, this is a work-oriented specification. It will start cleanly loaded on a site, hold well on gradients and give the low-speed control crane positioning demands. The cost is engine speed on the highway: if your machine spends most of its week travelling between jobs rather than lifting, you will burn more fuel and listen to more noise than a taller axle would give you. This is fixable at order stage, so have that conversation early — but be honest about your actual duty split before you specify it differently.

"A 5.143 ratio is right for a truck that starts loaded on site every day and wrong for one that mostly covers kilometres. Decide which yours is."

Euro VI in Colombia: real running-cost consequences

This chassis is rated Euro VI achieved through SCR, DOC and DPF, which is a genuinely modern driveline and one that keeps you ahead of tightening urban regulations. It also brings obligations that a Euro III or Euro V fleet has never had to think about. The engine needs low-sulphur diesel plus AdBlue or DEF, and the diesel particulate filter needs regular, uninterrupted regeneration cycles to stay healthy.

In practice the system is reliable given decent fuel and normal duty cycles. The failures come from poor fuel quality, extended idling — which is exactly what happens when a crane runs its pumps while parked — and skipped regenerations. Three practical responses: budget DEF as a recurring consumable rather than an afterthought, brief drivers properly on the warning lights and what to do when they appear, and map the fuel quality along the routes you actually run before committing a fleet.

Cab, dimensions and market coverage

Dimensions are 7,650 x 2,488 x 2,800 mm on a 4,200 mm wheelbase with a 2,200 mm body width and a 250 mm frame section — a compact footprint for a 22-tonne machine, which is what makes it viable for urban distribution and tight construction sites. Suspension is leaf spring at 10 front and 10+8 rear, steering is an AM65L unit, and the cab is a flat-roof half-row in left-hand drive with seating listed as two or three.

Cab equipment is better than the price suggests: electric air conditioning, power windows, central locking with remote door lock, and electrically adjustable, heated, defrosting exterior mirrors with integral lenses. The latter genuinely matter on a crane truck where the operator watches his own load. Finally, note the sales and covered countries — Colombia and Paraguay. Warranty support, parts distribution and homologation are built for those two markets, so if you are elsewhere treat that as the first question rather than the last.

Questions buyers ask before signing

Does the 8 t crane leave enough payload?

Everything comes off the 22,000 kg GVW before you load anything: crane, subframe and body all count first. The LOXA804 is rated 8,000 kg maximum against a 220 t·m moment, so full capacity is only available close to the truck and falls away as the boom extends towards 15.5 m. Ask for the load chart and a residual payload calculation for your exact body specification.

Is the 5.143 axle ratio too low for highway running?

It is a work-oriented ratio. With the Fast Gear eight-speed and 290 PS from the Dongfeng Cummins D6.7 it gives strong starts and good low-speed control on sites, at the cost of higher engine speed and fuel burn on intercity legs. If most of your week is highway transit between jobs, discuss a taller ratio before the order is fixed.

Does Euro VI raise running costs in Colombia?

It changes them. SCR, DOC and DPF mean low-sulphur diesel plus AdBlue or DEF, and regular DPF regenerations. With decent fuel and normal duty cycles the system is reliable; trouble comes from poor fuel, long idling and skipped regenerations. Budget DEF as a consumable, brief drivers on the warning lights, and confirm fuel quality along your routes.