Telescopic-Boom Truck-Mounted Cranes
Truck-Mounted Crane on Dayun 6x2 Lifting-Axle — Yuchai 240/245 hp, 10–12 t Crane (DYZ5242)
Dayun 6x2 crane-truck chassis with a 5 t lifting second axle (DYZ5242JSQD6CB / DYQ1242D6CA). Yuchai 240 or 245 hp, Fast 8-speed, 10 t rear axle, 300 × (8+8+6) three-layer frame, 10.00R20 tyres, 24,500 kg GVW. 10–12 t crane, 6.6–7.3 m body. China VI.
Short answer. This is a Dayun 6x2 crane-truck chassis — complete-vehicle model DYZ5242JSQD6CB on the DYQ1242D6CA chassis — on three axles: a front steering axle, a 5 t lifting second axle and a 10 t rear drive axle. Two wheelbases are built, 4,300 + 1,300 mm with a 6,600 or 6,700 mm cargo body and 4,700 + 1,300 mm with a 7,200 or 7,300 mm body, on a 300 × (8+8+6) mm three-layer frame at 24,500 kg gross vehicle weight and a rated payload of 10,645 kg. Power is a Yuchai diesel of 240 hp from 5,132 cc or 245 hp from 6,234 cc through a Fast 8-speed gearbox, and the emission standard is China VI. A 10 – 12 t crane is optional fitment and its make, boom sections, maximum reach and load chart are confirmed on the quotation; left-hand drive is standard and right-hand drive is available on request, built to order.
Published by Truck Crane China — we build truck-mounted cranes, grab trucks and wrecker trucks on Chinese chassis for export.
This is a 6x2 crane-truck chassis on three axles: a steering axle at the front, a 5 t lifting axle in the middle and a 10 t drive axle at the rear. Two wheelbases are built — 4,300 + 1,300 mm with a 6,600 or 6,700 mm cargo body, and 4,700 + 1,300 mm with a 7,200 or 7,300 mm body. Power comes from a Yuchai diesel in two builds: 240 hp from 5,132 cc (YCK05240-60) and 245 hp from a 6,234 cc six-cylinder (YCS06245-60A), both through a Fast 8-speed gearbox. The frame is a full-length 300 × (8+8+6) mm three-layer frame, the fuel tank is 200 L aluminium and the tyres are 10.00R20. Gross vehicle weight is 24,500 kg with a rated payload of 10,645 kg.
Left-hand drive (LHD) is standard. Right-hand drive (RHD) is available on request and is built to order.
Complete Specifications
Parameter | Value |
|---|---|
Chassis | |
Brand | Dayun (Hubei Dayun Automobile) |
Complete-vehicle model | DYZ5242JSQD6CB |
Chassis model | DYQ1242D6CA |
Drive configuration | 6x2 — three axles: front steering axle, 5 t lifting second axle, 10 t rear drive axle |
Wheelbase options | 4,300 + 1,300 mm (cargo body 6,600 / 6,700 mm); 4,700 + 1,300 mm (cargo body 7,200 / 7,300 mm) |
Axle load | 6,500 kg front / 18,000 kg rear group |
Gross vehicle weight | 24,500 kg |
Curb weight | 13,725 kg |
Rated payload | 10,645 kg |
Bare chassis weight | 7,070 kg (cab configuration 1) |
Payload-to-weight ratio | 1.64 |
Cab | |
Cab option 1 | 2,180 mm half-row (extended day) F6 cab |
Cab option 2 | 2,250 mm Fashion half-row cab |
Cab seating | 2 |
Cab tilt | Hydraulic |
Air conditioning | Yes |
Engine | |
Make | Yuchai |
Engine model | YCK05240-60 / YCS06245-60A |
Maximum power | 240 hp (176 kW) / 245 hp (180 kW) |
Displacement | 5,132 cc / 6,234 cc |
Fuel | Diesel |
Emission standard | China VI |
Transmission | |
Gearbox | Fast, 8-speed |
Chassis hardware | |
Rear axle ratio | 4.444 (cab configuration 1) / 4.111 (cab configuration 2) |
Frame | 300 × (8+8+6) mm, full-length three-layer frame |
Fuel tank | 200 L, aluminium |
Tyres | 10.00R20 18PR, 8 tyres, steel-belted |
Leaf springs | 9 / 6+− / 10+8 |
Track, front / rear | 1,935 mm / 1,965 + 1,860 mm |
Dimensions | |
Overall length | 10,750 mm (4,700 + 1,300 mm wheelbase) |
Overall width | 2,550 mm |
Overall height | 3,650 mm (cab configuration 1) / 3,850 mm (cab configuration 2) |
Cargo body, internal | 7,200 × 2,450 × 550 mm / 7,300 × 2,450 × 550 mm (4,700 + 1,300 mm wheelbase) |
Maximum design speed | 89 km/h |
Body and crane | |
Cargo body length range | 6,600 – 7,300 mm, depending on wheelbase |
Crane | 10 – 12 t, optional fitment — confirmed on the quotation |
Steering position | Left-hand drive (LHD) standard. Right-hand drive (RHD) available on request. |
The Lifting Second Axle
The middle axle of this chassis is a 5 t lifting axle. It is lowered when the truck is loaded, so the weight is shared across the rear group instead of sitting on the drive axle alone, and it is raised off the road when the truck runs empty or light.
The result is a three-axle truck for axle-load compliance that runs as a two-axle truck when the load does not need the third axle. It is lowered and raised from the cab as the load changes.
Crane, Body and Wheelbase
The crane is not fixed on this page because it is not fixed on the truck. This chassis takes a 10–12 t crane; the make, the boom sections, the maximum reach and the crane's own load chart are confirmed on the quotation rather than assumed here. Tell us the loads you handle and the reach you need, and the crane is matched to the job and to this chassis's axle and gross-weight limits. The photographs show this chassis with a crane fitted and an open drop-side cargo body.
Send us the job — the loads, the reach you need and where the truck has to work — and we will come back with the complete build: chassis, crane, body, the load chart for the crane we propose, and the price.
Questions buyers ask about the Dayun 6x2 DYZ5242
What does the 5 t lifting second axle do on this truck?
It is the middle axle of the three. It is lowered when the truck is loaded so the weight is shared across the rear group instead of sitting on the drive axle alone, and it is raised off the road when the truck runs empty or light. It is lowered and raised from the cab as the load changes.
Which crane can be fitted to this chassis?
This chassis takes a 10 – 12 t crane, an optional fitment confirmed on the quotation. The make, the boom sections, the maximum reach and the crane's own load chart are confirmed on the quotation rather than assumed, and the crane is matched to the job and to this chassis's axle and gross-weight limits.
Which wheelbase and cargo body can I order?
Two are built: 4,300 + 1,300 mm with a 6,600 or 6,700 mm cargo body, and 4,700 + 1,300 mm with a 7,200 or 7,300 mm body. On the 4,700 + 1,300 mm wheelbase the internal body is 7,200 × 2,450 × 550 mm or 7,300 × 2,450 × 550 mm, and overall length is 10,750 mm at 2,550 mm width.
What engine and gearbox does this chassis use?
A Yuchai diesel in two builds: 240 hp (176 kW) from 5,132 cc (YCK05240-60) and 245 hp (180 kW) from a 6,234 cc six-cylinder (YCS06245-60A), both through a Fast 8-speed gearbox. The fuel tank is 200 L aluminium, the tyres are 10.00R20 and the maximum design speed is 89 km/h.
What are the axle loads and weights?
Axle load is 6,500 kg front and 18,000 kg on the rear group, with 24,500 kg gross vehicle weight, 13,725 kg curb weight and a rated payload of 10,645 kg. The bare chassis is 7,070 kg in cab configuration 1, and the payload-to-weight ratio is 1.64.
Is it left-hand or right-hand drive, and what cab is offered?
Left-hand drive is standard, and right-hand drive is available on request and is built to order. The cab is offered as a 2,180 mm half-row (extended day) F6 cab or a 2,250 mm Fashion half-row cab, with two seats, hydraulic tilt and air conditioning.
Related Reading
Choosing the crane: How to Read a Load Chart Before You Choose a Crane, Specifying a Truck-Mounted Crane for Your Market, How a Truck-Mounted Crane Is Built, Chinese Crane Truck Brands Compared, Mechanical or Electronic Injection, for Your Market.
Other builds in this range: Crane on Dongfeng 4x2 Chassis, DFL5140XXYB1, 190 PS and Crane on Dongfeng 6x4 Chassis, DFL1250AW2, 275 kW. The full range is listed here. Related reading: How to Read a Load Chart Before You Choose a Crane and 5 t to 16 t Truck Mounted Crane: Choosing the Class.
