三一重工 STC3000C8-8

300t main hook block, 73.5 tons full counterweight, 17.5m fixed extension jib, portable superlift device, LMI load moment indicator, anti-tipping safety alarm system, full automatic air-conditioned operator cabin, wireless remote control for counterweight & outrigger operation, centralized automatic lubrication system, full maintenance tool box, spare tire, outrigger support pads

For sale well-maintained Sany STC3000C8-8 300-ton heavy-duty hydraulic truck crane, the flagship largest tonnage truck crane from Sany, specially designed for wind power installation, large bridge erection, petrochemical plant hoisting, super high-rise building construction and large-scale rental fleets worldwide三一集团. This 300t crane is equipped with an 8-section ultra-high-strength oval main boom reaching 90 meters, matched with a 17.5m standard fixed jib plus optional dual 9.5m extension jibs, achieving a maximum combined lifting height of 120.5 meters to cover ultra-high and long-radius heavy lifting demands. It is the first Sany truck crane equipped with a portable detachable superlift device, which can be carried together with 27.5t counterweight and outrigger pads during single transit, eliminating the need for an extra flatbed truck and greatly cutting transportation costs三一集团. Equipped with a wide 8.3m transverse H-type outrigger span and full 73.5t counterweight, the whole machine delivers outstanding anti-overturn stability under full-load heavy working conditions. The intelligent LMI monitoring system provides real-time overload, over-winding and side-load alarm with high precision to eliminate operation safety risks. Adopting independent dual-engine power system: upper superstructure powered by reliable Dongfeng Cummins QSB5.9 engine (154kW) for smooth lifting operation; chassis driven by Weichai WP12.460E62 heavy-duty diesel engine (338kW), matched with automatic transmission and hydraulic retarder, strong climbing capacity up to 45%, maximum highway speed 85km/h, stable long-distance transit performance with low fuel and urea consumption三一产品旗.... The 5-axle heavy-duty dedicated crane chassis uses thickened high-strength frame with fatigue test certification, strong torsion resistance and good passability on mountain roads and muddy construction sites. Sany exclusive double-pump load-sensing intelligent hydraulic system realizes independent control of luffing, boom extension, lifting and composite linkage actions, smooth and sensitive operation response, low energy consumption and low maintenance cost. The main winch single rope speed reaches 135m/min, supporting load-bearing telescopic function for precise fine-tuning at high altitude. Full-automatic centralized lubrication system improves maintenance efficiency by 50% and reduces manual labor. Wireless remote control allows single operator to finish counterweight assembly, outrigger deployment and retraction within 15 minutes without auxiliary workers, greatly boosting construction efficiency. Spacious ergonomic operator cabin is fitted with full automatic air conditioning, large digital integrated touch display, full-view reversing monitoring camera and shock-absorbing adjustable driver seat, with storage platform and mobile phone bracket to relieve fatigue during long-hour continuous operation. All hydraulic cylinders, pipelines, control valves and wiring harnesses are original factory parts without overhaul or replacement. The machine retains complete original paint, no crash damage, no repair welding traces on key stress-bearing components, and no oil leakage at all hydraulic joints. Complete factory maintenance records can be provided for customers to check during on-site inspection. We warmly welcome buyers to visit our equipment yard in Anyang for free test run and lifting inspection. Complete set of export customs clearance documents will be provided for destination port clearance. Real machine photos, lifting test operation videos and full load curve data can be sent to you instantly via WhatsApp.