1. General Specifications

Max. rated lifting capacity: 70 t (with 5th outrigger jack, 360ºoperation of the boom)

Max. load moment: 2303kN.m

Overall length: 13.5m

Overall width: 2.80m

Overall height: approx. 3.5m

Total vehicle curb weight: approx. 41t

2. Carrier

Self-designed and manufactured carrier with 4 axles, full dimension cab, max. traveling speed is 75km/h.

Driving/ steering: 8×4×4

Min turning radius: 12m

Min ground clearance: 270mm

Approach angle: 16.5º

Departure angle: 11º.3

Grade ability: 35%

2.1 Frame

QY70K Truck Crane Technical Specification,crane,truck mounted crane

Self-designed and manufactured frame with all floors covered, optimized design of loaded structure, box-typed structure, made of high tension steel. Boxes in which outriggers are stowed lie between 2nd and 3rd axle and in the rear of the frame. Front and rear tow-hooks are available.

2.2 Carrier Engine:..

Manufacturer: Hangzhou Automotive Engine Plant 

Model: WD615.44

Fuel: diesel fuel

Coolant: water

Number of cylinder: 6

Rated output power: 235 kW/2200 rpm.

Rated torque power: 1250N.m /1500rpm

Silencer: made of steel, coated with silver color paint

Environmental protection performance: complies with Euro

Fuel tank capacity: approx. 250 L

2.3  Transmission system

2.31 Transmission

9- speed fixed shaft mechanical transmission, rear axles driven.

2.3.2 Axles

Heavy load bearing axles, made by famous manufacturer, designed through importing foreign advanced technology, with reliable performance.

1st axle: single tire, for steering

2nd axle: single tire, for steering

3rd axle: double tires, for driving, 1-stage main reduction plus planetary reduction

4th axle: double tires, for driving, 1-stage main reduction plus planetary reduction

2.3.3 Driving shafts

Universal-shaft connected by flange, optimizes power transferring, easy to maintain and convenient to disconnect/ install.

2.3.4 Suspensions

Leaf spring suspension of front axle and leaf spring equalizing suspension of rear axle.

2.4 Steering

Hydraulic powered mechanical steering.

2.5 Tires

12.00-20, suitable for heavy-duty truck, interchangeable, easy to replace.

2.6 Brakes

Service brake: dual circuit air brake controlled by foot pedal. Max. working pressure is 0.8Mpa. 1st circuit acts on the wheels of 1st and 2nd axle, 2nd circuit acts on the wheels of 3rd and 4th axle.

Parking brake: air release brake, acts on the wheels of two rear axles by spring loaded air chambers respectively on each axle.

Auxiliary brake: engine exhaust brake.

2.7 Carrier cab

Full dimension, fully enclosed cab, good sealing, anti-vibration and corrosion- proof. 3 windshield wipers, rear vision mirrors of large view, electric control window washers, safety glasses, electric lifts of door and window, heater with defrosting device, adjustable seats, air conditioner, radio-cassette player and a sundries case are available. Left-hand steering wheel is adjustable for height and inclination.

2.8 Hydraulic system

Variable displacement Pump connected to engine through transmission and PTO provides hydraulic power for lifting operation.

Manual multi-way change valve controlling the moving directions of outrigger beams and jacks can be operated on each side of the vehicle. The change valve adding a pressure valve efficiently prevents the piston rods of horizontal cylinder bending.Speeders equipped on outrigger jacks (double-way hydraulic valve on 5th jack) not only prevent retracting of the piston rods of jack cylinder during lifting operation, but also improve the speed for outrigger extending/retracting.

2.9 Hydraulic outriggers

4 hydraulic outriggers can be hydraulically operated. There is a control console on each side of the carrier respectively. Levels for leveling the vehicle are available. The outrigger floats are stowed under the jacks. Outriggers are designed to raise the vehicle for operations in all kinds of working condition. 

Outrigger span (longitudinal×transversal): 5.75m×6.9m.

5th outrigger jack: located under the front of the vehicle frame for 360º operation of the boom.

2.10 Electrical equipment

24V DC, negative ground, 2 batteries. Lighting device comprises of front headlamp, fog light and reversing light etc., complied to the relative regulations in China National Standard.

2.11 Tool

A set of maintenance tool is available.

3. Crane Superstructure

3.1 Slewing mechanism

The roller slewing bearing as connection of the carrier and the crane superstructure can rotate 360º continuously. The roller bed is sealed to resist water and dust.

3.2 Turntable

Designed and manufactured by XCMG, equivalent stress and tapered cross-section box-type structure, made of high-tension steel.

3.3 Hydraulic system

The vehicle power is transferred by hydraulic system of combination of open type variable displacement and constant displacement. The main winch system with variable displacement pump and motor has constant power and can get lower speed with heavy load, higher speed with light load.

Superstructure hydraulic system adopts pilot electro hydraulic proportional control and has function of load-feedback. The main Control valve is advanced load sensitive type proportional multi-way change valve.

The pressure difference between pump outlet pressure and load pressure can change variable pump inclination of oil distributor through load feedback port, thus changing the flow of the pump. With the control of constant power variable displacement pump, the pressure and flow of the pump can be adjusted well by load feedback, thus greatly increasing control performance and energy-save effect. The pilot control valve uses an imported electro hydraulic proportional valve. The moving angle of its handle is directly proportional to the input current, so does the movement of the main control valve element. Thus the whole machine has good fine motion control.

Hydraulic oil tank capacity: approx. 600 L

3.4Control

Conventional control is carried out by 2 self-centering 4-way joysticks in the carrier cab. All movements of the crane are controlled by pilot control through hydraulic pump and proportional valve, stepless speed variation is available.

3.5 Main winch

Main winch is controlled by open oil circuit. Variable-displacement motor, compact and high performance professionally made planetary gear reducer with wet brake, drum with special rope groove and rotation resistance wire rope are available.

Wire rope diameter: 20mm

Wire rope length: approx.185m

Max. single line speed: approx. 130m/min.

3.7 Auxiliary winch:

Auxiliary winch is controlled by open oil circuit. Variable-displacement motor, compact and high performance professionally made planetary gear reducer with wet brake, drum with special rope groove and rotation resistance wire rope are available.

Wire rope diameter: 18mm

Wire rope length: approx.125m

Max. single line speed: approx. 108m/min.

3.8 Elevating system

Boom elevation is driven by one differential cylinder with a balancing valve.

Elevating angle: -2º~ 78º

Elevating time: approx.60s..

Main Parameters

Our company mainly deals in Hardware Tools, combined tools, electric tools, Special Tools For Petroleum, Metal Processing Machinery and petroleum drilling equipment. Diagonal Cutting Plier，Oil Drill Pipes，Drilling Tools，Diesel Engine Etc.Our companyoperates hardware tools and has established long-term and stable cooperative relations with many retailers. Rugao yaou import & Export Co. Ltd has won the trust of our customers with the principle of multi variety operation characteristics and small profit and quick turnover. Enjoy a high position among consumers.

FAQ

Q1. How to get an accurate quotation?

A1: The customer should provide the related technical requirements, drawings, pictures, industrial voltage, planned output,

Q2. What if I use this machine for the first time and know nothing of it ?

A2: We will have our engineers teach you how to operate it,you can just inform us some details of the product you need then we can customize as your special order.

Q3. How does your factory do regarding quality control?

A3: We has been regard quality as the priority. We always attach great importance to quality controlling from the very beginning to the very end ,so our press can match all the CE and ISO standard also more strict standard.