Three stone crane features: 1, full hydraulic transmission, electromechanical dual-use, safe and reliable, low labor intensity, high efficiency; 2, with seven sets of security lock (valve); 3, lifting reel normally closed hydraulic brake, configurable independent hydraulic lifting winch; 4, the arm and the important structural parts are made of low-alloy steel plate, reducing the weight of the crane, the crane improve performance; 5, the arm cold forming, rectangular, hexagonal structure, give full play to the material mechanical properties; 6, hydraulic cylinder telescopic boom, work more safe and reliable; 7, the installation of night work lights, extended working hours; 8, limit the use of telescopic crane marking line and alarm double insurance; 9, Optional front and rear cab and three-phase electrical work; 10 crane optional torque monitor height limiter; 11, are equipped with cranes radiators, more conducive to summer high temperatures; 12, the plating process used in all hydraulic lines. Three stone crane promise: absolutely give you the lowest price, high quality service. You are satisfied with the service is our eternal pursuit! Three stone crane commitment: not afraid of crane brand names, comparison test result. Good contrast crane afraid, afraid than quality, than the price is not afraid, not afraid of more than three stone crane service commitment: to give customers the best quality and the lowest price, the most perfect after-sale, customer expectations and satisfied. Advantages: This 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 . Performance is more remarkable:? The whole layout optimization, the main bearing member reasonable force, lifting the industry's operating performance beyond 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 H-leg span greater stiffer, better stability. Easier manipulation? Load sensing hydraulic system energy efficient, sensitive and comfortable operation, control precision, a good fretting resistance. ? Optimization rod type steering mechanism, the operation easier. ? Small crane cab using a large arc windscreen, steering more open vision. Easier maintenance? New optimized design pipeline alignment, layout is more scientific and reasonable, greatly reducing the pipeline disassembly time and reduce maintenance costs. ? Fully upgraded electrical system, the use of leak-proof electrical connector, greatly extending the life of components. Quality and 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. ? New power steering mechanism, the use of hydraulic power design, steer the vehicle more lightweight, flexible, precise, always guarantee the safety of vehicles. ? 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. Jining three stone Construction Machinery Co., Ltd. production and marketing crane, small crane, truck crane, lorry crane, 3 t crane, 5 tons crane, 8 tons crane, 12 tons Crane, and we have a class products and services, quality assurance! Shandong Jining three stone welcome new and old customers! Factory direct orders can be up to ten thousand yuan promotions! ! !