Product Summary
The Environmentally Friendly Digger (EFD-65 Hybrid) is a zero-compromise 6.5-ton compact excavator engineered for emission-regulated markets and eco-conscious infrastructure projects. Featuring a Cummins QSF2.8 (Euro Stage V) engine with an integrated 15 kW electric swing motor, this digger delivers 45.7 kW net power and a class-leading 22% reduction in fuel consumption compared to conventional 6-tonners. The parallel hybrid system requires no external charging, while the advanced load-sensing hydraulic system (140 L/min main pump) maintains breakout forces up to 41.2 kN, proving that green technology can meet heavy-duty site demands.
Why Choose This Machinery
Unlike standard Tier 4 or Stage V machines that rely solely on after-treatment, the EFD-65 Hybrid leverages a self-charging electric swing drive to recapture braking energy and assist the diesel engine during peak digging cycles. This translates to lower total cost of ownership (TCO) from day one: $6,200 annual fuel savings at 2,000 hours/year, plus reduced DEF consumption and extended DPF cleaning intervals (every 3,500 hours vs. typical 1,800 hours). The undercarriage features triple-flange track rollers and 450 mm steel tracks, standard for mining prep work, ensuring 8,000+ hours of wear life. For exporters, we offer global container/RoRo flexibility – the EFD-65 folds within a 20' flat rack or four units per 40' HC container, plus a 1-year global powertrain warranty with local stock of hydraulic seals, filters, and track groups in 4 regional warehouses (Dubai, Rotterdam, Houston, Shanghai).
Powertrain & Structural Overview
The EFD-65 integrates a Cummins QSF2.8 diesel engine (45.7 kW) with a Kawasaki hydraulic main pump and a Dana Rexroth electric swing motor-generator. The hybrid control unit (HCU) manages power splitting: below 30% engine load, the electric motor assists to keep RPM near optimum BSFC; during swing deceleration, kinetic energy is stored in a ultracapacitor bank (0.48 kWh) – no heavy batteries, no degradation. The closed-center load-sensing hydraulic system (34 MPa relief) offers independent flow to arm (68 L/min), boom (62 L/min), and bucket (58 L/min). Cab ergonomics include a pivoting RH console, 7-inch LCD anti-glare display, and auto climate control. The reinforced X-frame upper structure and ISO 12117-2 certified ROPS/FOPS canopy ensure survival in quarry handling and demolition debris environments.
Technical Specifications
Below is the primary data for the Environmentally Friendly Digger (EFD-65 Hybrid) as tested under ISO 9249 and 14396 standards.
Heavy-Duty Application Scenarios
Earthmoving & Grading
Precision trenching in urban gas/water line replacement projects (low noise mode: 66 dBA) and fine grading for road base layers. The proportional thumb-ready auxiliary lines (140 L/min, 30 MPa) allow seamless attachment of tilt rotators or laser receivers.
Quarry & Demolition Support
Equipped with a reinforced boom and arm (35% thicker steel plates near pins), the EFD-65 can mount a 350 kg hydraulic breaker for limestone secondary breaking or concrete pulverizing. The high-flow auxiliary circuit (160 L/min optional) handles crushers and vibratory shears.
Municipal & Green Construction
Zero tail swing (rear protrusion < 100 mm) and 2850 mm tail radius allow safe operation beside protected trees or heritage walls. The ECO Pro mode reduces CO2 emissions by 1.8 tons annually per machine, meeting green bond requirements for public infrastructure projects.
Equipment Q&A
Q1: What are the shipping lead times and available ports for the EFD-65 Hybrid?
We maintain a rolling stock of 25+ units at our main export hub (Shanghai). Lead time: 15 days for FCL (20' or 40' HC container) and 25 days for RoRo breakbulk (up to 8 units per vessel). Shipping direct to Rotterdam, Houston, Jebel Ali, Durban, and Singapore. LCL to secondary ports via transshipment (35-40 days).
Q2: Which wearing parts and service kits are recommended for the first 2,000 hours?
We offer a pre-shipment Consumables Starter Pack (P/N: EFD65-CSP) at $1,850, including: 3× engine oil filter (Fleetguard LF3487), 4× hydraulic return filter (HY-1253), 2× pilot filter, 6× bucket teeth (Rock RS125), 2× track adjuster seals, and 1× alternator belt. All components in stock at our global hubs.
Q3: Does the Euro Stage V engine require low-sulfur diesel or special lubricants?
The Cummins QSF2.8 meets EU 2016/1628 requirements and operates on EN590 diesel (≤10 ppm sulfur). For export to non-EU regions (Middle East, Africa, SE Asia), we ship with a pre-configured ECU tune that accepts up to 500 ppm sulfur without after-treatment damage (Stage V emissions not enforced). Use standard 15W-40 CI-4 engine oil; hybrid ultra-capacitor bank requires zero maintenance.
Q4: How long does it take for a new operator to learn the hybrid assist modes?
Less than 2 hours. The HCU defaults to 'Auto Hybrid' mode, requiring no driver input. For experienced operators, three selectable modes: ECO (max fuel saving, 75% power), Standard (balanced), and Boost (electric motor + diesel peak for 6 seconds – increases break-out force by 18% from 41.2 kN to 48.6 kN). We provide a free 1-hour remote video training with each machine.
Q5: What warranty terms and technical support are offered for international buyers?
1-Year Global Powertrain Warranty (engine, hybrid motor, main hydraulic pump, swing gearbox) – parts and labor covered at any authorized service center worldwide. After-sales: 24/7 WhatsApp hotline, 8-hour response time for technical diagnostics, and 48-hour dispatch of emergency parts via DHL. Extended warranty (up to 4,000 hrs / year 3) available at 3.5% of machine price.
