Description: The product is the first approved by the national quality inspection agency for small cranes, driving more comfortable, safe. The product announcement by the national vehicle notices, vehicle management throughout the country can be listed (B2 large yellow cards), and the acquisition costs and other operating procedures Shipping, product light and flexible, inexpensive and adaptation for use in rural development and urban fringe . 7 tons crane lifting machinery configuration:? Chassis uses: Europe 3200` Proton cars special lifting chassis: 490 engine, Dongfeng 5-27 with a sub-tank gearbox (with high and low), increased Isuzu front and rear axles (vacuum brake booster oil traffic brakes), mechanical steering steering. ? Winching system: the primary and secondary double hook double hoist, main hoist: Orbital motors dedicated crane 6 t hydraulic winch; auxiliary winch: high and low speed orbital motors with quick release rope hydraulic winch (hydraulic machinery dual brake system). ? Architectural Systems: pentagon 5.5X5 Boom Festival (automatic retractable hydraulic cylinder). ? Outrigger system: full hydraulic telescopic cylinders automatic aspect to the large span H-leg. ? Hydraulic system: full hydraulic servo control operation system, integrated hydraulic valve single group of independent operations (group can achieve more complex action). ? Rotary Systems: 50 manganese forging rail quenching quenching slewing big four central rotary device (which can achieve unlimited 360-degree continuous rotation) scalable configurations:? Chassis can expand air brake brake system, main winch can be extended dedicated axial piston 8 tons of small crane hydraulic winch, hoisting system can expand oil dual-use (11KW motor pump independent sources), the third pump source 28 horsepower single-cylinder, load indicator, height limiter. ? Overall dimensions (length X width X height): 7800 * 2050 * 2650mm Model: 7 tons of small crane maximum weight: 7 t Arm length: 6 * 5 m ≈30 meters maximum lifting height: 25-38m Engine Model : 490 Engine power: 38Kw motor: 11KW Chassis Type: ST7-1 Lifting speed: 26 (52) m / min rotation speed: 2.8 / min travel speed: ≤50Km / h Outrigger span: 3.5 * 4.25m Dimensions : 7.8x2.05x2.65m chassis types: special homemade crane chassis Engine Model: 4B2-52M22 Maximum lift (kg): 7000 top speed (km / h): 50 Tires: 750-16 type Wheelbase (mm): 1540 / 1650 Dimensions (mm) :: 7800 * 2050 * 2650 Vehicle Weight (kg): 8600 Long arm section 6 X 5 米 = 30 m, an octagonal boom arm length optional section 6 X 6 米 = 36 meter, octagonal-type crane with a luxury sleek double cab equipped with double hook double winch, double sets of hydraulic lock, empty hook automatic quick release, faster lifting a 7-ton hydraulic winch match, technologically advanced hydraulic system, automatic brake , safety lock with 11 kilowatts oil 380V motor, optional horizontal bar diesel, fuel savings and greatly reduce the operating costs of 1.4 meters with a 50-manganese steel turntable, the turntable can be rotated 360 degrees with a planetary gear and rotating plunger pumps, more durable, more stable rotation with hydraulic power steering, air brakes, breathe brake, driving the vehicle more easily and flexibly with 6 automatic hydraulic legs, bold lengthened span larger, more safe and secure with a hydraulic cooling system, can reduce oil temperature, improve work efficiency 7 tons of small crane seven tons homemade crane chassis Product Configuration: 6 * 5 m boom, 485 diesel / 40 pumps, double deluxe cab Isuzu bridge, 130 low transmission, WC126 reducer, 11kw motor / 32 pumps, 700 tires, cover optional: W15D direction of power, large panels, the hydraulic cross the legs, swivel joints, prosthetic legs. Advantages: 1, superior performance machine layout optimization, the main bearing member reasonable force, lifting the industry's job performance than the same tonnage products. Fusion Plug-arm head, mature technology embedded boom arm block, special telescopic mechanism so that the telescopic boom is more stable, high reliability. Optimization force design, with a new box-leg span greater stiffer, better stability. 2, quality is more reliable classic boom telescoping technology, the job is more secure. Carefully build the industry's most complete security device system to ensure the lifting operation more secure. Fully upgraded braking system, dual-circuit pneumatic design, multiple systems to ensure all-round safety brake when the vehicle is traveling. High stiffness turntable, frame structure, strength and stiffness fully coordinated. Perfect design and structure manufacturing process integration, to achieve a fully automated welding, and higher reliability. 3, and maintenance optimization design new pipeline alignment, layout is more scientific and reasonable, greatly reducing the pipeline disassembly time and reduce maintenance costs. Fully upgraded electrical system, a number of optional electronic equipment, leak-proof electrical connectors are used, greatly extending the life of components. Indiscriminate use of anti-rope technology to improve the efficiency of the lifting operation, reduce labor intensity and prolong rope life. Retractable wire rope guide and protective equipment designed to prevent the rope off road crowded off. 4, more environmentally friendly energy electromechanical dual hydraulic system, more environmentally friendly and energy-efficient economy. The use of advanced machine matching technology, design more scientific and lowering mechanism loss, prolong machine life, salvage value rate.