22吨低噪音挖掘机 | 超静音驾驶室，符合ISO 6395标准 | 重型设备出口商

Product Summary

The SD22LN Low Noise Excavator is purpose-built for contractors and fleet operators who cannot compromise between site productivity and environmental noise compliance. With an operating weight of 22,000 kg and a bucket capacity of 1.1 m³, this machine delivers full-sized earthmoving capability while maintaining an exterior sound power level below 98 dB(A) per ISO 6395. The operator environment achieves just 68 dB(A), enabling 12-hour shifts without hearing fatigue. Export-ready with global emission standard configurations (Stage V / Tier 4 Final / China IV), backed by a 1-Year Global Warranty and genuine spare parts supply chain.

Why Choose This Machinery

Standard excavators in the 22-ton class typically generate 75-80 dB(A) at the operator ear and 105-110 dB(A) externally. The SD22LN reduces noise by an average of 12 dB(A) through three core innovations: acoustically encapsulated engine compartment with multi-layer damping, vibration-isolated cabin mounting, and low-noise hydraulic pump porting. Competitive advantages include: 30% lower operator fatigue leading to fewer errors, extended night working permits in urban zones, property value protection on hospital/university adjacent sites, and resale premium of 12-15% over standard units. The undercarriage features reinforced D6-size track links with 700 mm triple-grouser pads, providing 4,500-hour wear life in abrasive conditions.

Powertrain & Structural Overview

The SD22LN is powered by a Cummins QSB6.7-C125 diesel engine, delivering 125 kW at 2,000 rpm with intelligent electronic governing for precise load-matching. The acoustic encapsulation includes a 50 mm composite foam barrier with steel outer shell, reducing airborne noise by 15 dB. The hydraulic system employs a triple-pump variable displacement design (main pumps: 2 x 215 L/min, pilot: 28 L/min) from Kawasaki, enabling simultaneous boom, arm, bucket, and swing operations with 5% lower flow ripple than competitive pumps. The cab uses laminated acoustic windshield glass (6.38 mm PVB interlayer), floor-mounted vibration isolators with natural frequency below 12 Hz, and a fully sealed pressurized cabin with HEPA filtration. Standard equipment includes automatic climate control, rearview camera, and a 7-inch LCD monitor with noise level trending display.

Technical Specifications

Below is the primary data for the SD22LN Low Noise Excavator. All values measured at nominal operating temperature under ISO 6395/6396 standards.

Heavy-Duty Application Scenarios

Earthmoving

Residential subdivision development, hospital campus expansions, and university construction projects where nighttime earthmoving is restricted. The SD22LN completes grading and backfilling operations with exterior noise staying under 65 dB(A) at 50 meters, compliant with most municipal noise ordinances from 7 PM to 7 AM.

Quarrying

Secondary crushing feed and overburden removal in quarries located near residential zones. The reduced noise profile allows extended operating hours without triggering community complaints or fines. The reinforced boom and arm (100,000 psi tensile steel) handle limestone and sandstone aggregates with bucket breakout force of 145 kN.

Municipal Construction

Water line replacement, sewer repairs, and utility trenching in dense downtown corridors. The low noise envelope enables work adjacent to hotels, hospitals, and senior living facilities during daytime hours with open windows. The compact tail swing radius of 2,150 mm allows operation within single-lane closures.

Equipment Q&A

Q1: What are the shipping lead times and available logistics options for a container order of 5 units?

A1: Stock units available ex-warehouse in Shanghai and Tianjin ports. For orders of 1-5 units, flat rack or open-top container shipping takes 20-25 days to North America, 30-35 days to Europe, and 18-22 days to Middle East. For 6+ units, RoRo vessel shipping reduces per-unit freight cost by 18%, with lead times of 28-40 days depending on destination port. All shipments include full export crating, moisture barrier packaging, and customs documentation support.

Q2: What wearing parts are included with the initial purchase, and what is the cost of a full consumables package for 2,000 operating hours?

A2: Each SD22LN ships with one set of installed bucket teeth (5 units + 15 spare tips), standard track pads, and OEM filters (engine oil, fuel, hydraulic return). A full 2,000-hour consumables package (USD 2,850) includes: 24 bucket teeth tips, 2 sets of track pad bolts, 8 hydraulic filters, 12 engine oil filters, 8 fuel filters, and 4 air filter elements. Bulk consumable orders for fleet operators receive volume discounts starting at 12% for 5+ machine-year packages.

Q3: Does this excavator comply with emission standards for import into the European Union, Australia, or California?

A3: Yes. The SD22LN is configurable at order for EU Stage V (with DPF+SCR), Australia ADR 80/04, or US EPA Tier 4 Final / CARB compliance. The standard export configuration is China IV (equivalent to EU Stage IV). For Tier 4 Final markets, we integrate the Cummins aftertreatment system directly at our assembly line. Compliance certificates and engine family approval documents are provided with each shipment. Additional lead time of 10 days applies for non-standard emission configs.

Q4: What operational training resources are provided for my local service team?

A4: Each machine includes a comprehensive multimedia training suite: (1) USB drive with full service manual, parts catalog, and hydraulic/electric schematics; (2) QR code access to 32 video tutorials (average 3 minutes each) covering daily inspections, grease points, filter changes, and noise reduction system maintenance; (3) optional on-site commissioning and 2-day operator training for orders of 3+ units (travel and accommodation at buyer's expense, trainer fee waived). Remote diagnostic support via WhatsApp/WeChat video is available 18 hours/day.

Q5: How is the 1-Year Global Warranty structured, and what are the exclusions?

A5: The warranty covers 12 months or 2,000 operating hours (whichever occurs first) from date of delivery to the port of destination. Coverage includes: powertrain components (engine short block, cylinder head, crankshaft, camshaft), main hydraulic pumps, swing motor, travel motors, final drives, and electronic control module. Exclusions: wearing parts (bucket teeth, track pads, filters, belts, hoses), misuse damage, operation outside specified noise reduction protocols (e.g., removal of acoustic panels), and damage from contaminated fuel. Warranty fulfillment occurs through our regional parts depots (Houston, Rotterdam, Dubai, Singapore) with 48-hour guaranteed parts dispatch after claim approval.