SDLG Crawler Excavator E6550H

Product Description

Powerful Power for Effortless Operation

Fitted with Cummins engine, it delivers high power and abundant torque reserve. It generates stronger power at the same displacement and achieves higher efficiency under heavy-load working conditions.

Adopting high-pressure common rail ultra-high pressure injection with optimized injection angle, the fuel atomizes well and burns more completely to cut fuel consumption.

Well-matched with the hydraulic system, it strikes an ideal balance between high efficiency and low fuel consumption within low-speed operating range.

The SCR aftertreatment system operates at a relatively high average temperature, reducing both fuel and urea consumption for lower long-term operating costs.

Full Electronic Controlled Hydraulics — Fuel-saving & Efficient

The main valve integrates proportional solenoid valves to realize full electrical control. Wiring harnesses replace pilot pipelines, simplifying oil circuits and reducing pressure loss.

Independent control of all machine movements with intelligent flow merging ensures fast response, high-efficiency flow distribution and excellent fuel economy.

Large-bore main spool offers superior flow capacity, lowers system pressure loss and optimizes back pressure for all movements, greatly reducing power waste.

Equipped with a 252cc large-displacement main pump, it provides sufficient flow supply for faster movements and higher productivity.

Intelligent Temperature Control for Extended Continuous Operation

The variable hydraulic oil cooling pump adjusts oil output according to oil temperature to realize precise control, saving energy and lowering noise.

Large hydraulic oil cooler maintains low hydraulic oil temperature, minimizing internal leakage of the hydraulic system and improving efficiency for prolonged continuous operation.

The cooling fan supports forward and reverse rotation, enabling both heat dissipation and dust removal.

Intelligent Control & Superior Operating Comfort

Premium air suspension seat with seat heating allows weight-based comfort adjustment. Featuring dual-slide structure and multi-mode regulation, it effectively relieves operator fatigue.

An 8-inch color LCD monitor is standard inside the cabin, presenting clear and intuitive real-time machine operating status.

The integrated KeyPad houses shortcut buttons for page switching, throttle levels, high/low travel speed, maximum power mode and other multi-level switches, enabling convenient fingertip control.

Robust Heavy-Duty Structure for Mining Applications

Reinforced working equipment and undercarriage adopt robotic welding, weld inspection via flaw detector and shot blasting treatment.

Custom structural steel plates are manufactured with world-leading processes to deliver outstanding load capacity and extended service life.

Welded undercarriage with 2-tooth reinforced tracks. Wheelbase × track gauge: 4420 × 2740 mm, offering great load capacity and stable heavy-duty performance.

High-Efficiency Straight-Flow Air Filter for Cleaner Intake Air

Premium straight-flow cartridge air filter features high dust holding capacity, superior filtration accuracy, low intake resistance and long service intervals.

The nano-media filter element achieves high filtration efficiency to effectively prevent premature engine wear.

Snap-fit design enables easy disassembly and replacement for convenient maintenance.

Product Parameters