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Engineered for high-density metropolitan underground development, hard-rock excavation, and rapid muck haulage in Osaka and across Western Japan.
Compact profile engineered for Osaka metro cross-passage drifts, rapid mucking, and precision maneuverability in ultra-confined rock headings.
30-tonne capacity heavy hauler designed for large-section deep tunneling, Hanshin infrastructure upgrades, and aggregate transport.
Specialized horizontal ejector bed ideal for low-headroom Osaka subterranean utility conduits without requiring vertical tipping clearance.
Agile 1-yard underground loader built with robust SAHR braking and advanced hydraulic controls for reliable continuous duty cycles.
Osaka, the economic engine of Japan's Kansai region, is undergoing an unprecedented wave of underground infrastructure modernization. Driven by high-density urban geography, major coastal development in the Osaka Bay area, and continuous renewal of arterial expressways, civil engineering projects in Osaka face extreme physical constraints. Navigating subterranean rock, alluvial gravel, and confined utility corridors requires dump loaders (LHDs) and mining trucks built with unmatched structural integrity, ultra-compact turning radiuses, and zero-compromise exhaust mitigation.
As the metropolitan area deepens its flood control reservoirs, expands underground subway routes connecting Yumeshima Island and Namba, and builds multi-utility shield tunnels along the Yodo River basin, the demand for high-reliability trackless equipment has surged. Contractors require machinery that delivers maximum breakout force and quick cycle times while adhering to Japan's rigorous Ministry of Land, Infrastructure, Transport and Tourism (MLIT) emission benchmarks and strict subterranean occupational safety mandates.
Custom-tailored for high-frequency muck haulage, hard rock scraping, and narrow drift operations in civil construction and underground mining.
Powered by world-class low-emission engines (Deutz, Cummins) paired with hydrostatic and hydrodynamic transmissions from Dana and Kessler, ensuring high tractive effort across muddy drifts and steep 25% inclines in Japanese tunnels.
Equipped with a comprehensive hydraulic pump and motor testing platform, facilitating dynamic pressure calibration, component diagnostics, and compatibility with Sauer-Danfoss, Eaton, and Bosch Rexroth systems.
Spring-Applied Hydraulic-Release (SAHR) multi-disc wet brakes provide instantaneous fail-safe stopping power in emergency dropouts or hydraulic pressure loss, ensuring worker protection in subterranean Osaka projects.
Discover how our heavy trackless loaders and haulage dump trucks tackle challenging subterranean environments across the Kansai megalopolis.
Handling heavy muck clearance during the expansion of Osaka Metro lines and deep rail tunnels connecting Kansai International Airport and central Osaka. Compact center-articulated steering enables rapid turnaround in circular tunnel shafts.
Supporting subterranean road tunneling and underpass construction across the Osaka-Kobe corridor. Low-profile dump trucks maneuver effortlessly under low overhead bridge piers and confined support arches.
Operating in large-scale underground discharge tunnels designed to divert excess rainfall from the Yodogawa and Yamato rivers, moving wet sediment, blasted stone, and heavy gravel with high-abrasion buckets.
Serving micro-tunneling and deep utility trench excavation under Osaka's central business districts (Umeda, Namba, Honmachi), where narrow-vein DRWJ-0.6 and DRWJ-1 loaders clear rock without surface traffic disruption.
Drilling and blasting across the Ikoma and Rokko mountain ranges require high-tonnage DRUK-20 and DRUK-30 underground dump trucks to haul abrasive granite and basalt debris out of portal inclines efficiently.
Delivering 24/7 reliability in nearby Kansai aggregate mines, limestone quarries, and industrial raw material subterranean works with reinforced wear-resistant Hardox steel scoops and heavy rock-bed chassis.
Shandong Derui Machinery Co., Ltd. was founded in 2012 and is located in Weifang, Shandong Province, known as the "Kite Capital." Derui is a high-tech enterprise specializing in trackless mining equipment, integrating R&D, manufacturing, sales, and service. Its main products include underground loaders, mining trucks, scaling jumbos, and multi-purpose utility vehicles.
The company is equipped with a comprehensive hydraulic pump and motor testing platform, capable of undertaking maintenance and debugging for pumps and motors from brands such as Sauer, Eaton, and Rexroth. Since its establishment, we have focused on the production and R&D of trackless equipment for underground mining. We are committed to developing into an internationally renowned manufacturer of mining machinery and equipment, providing high-quality products and excellent services to a growing number of customers.
Currently, the company has over 200 employees, including a technical R&D team of more than 50 professionals. We have a comprehensive overseas market service team comprising sales personnel and after-sales support staff. Additionally, we have established branch offices in regions such as Zambia and Russia to ensure the quality and timeliness of our overseas services.
Derui focus on product leadership, service, cost, safety and efficiency will enable us to devote ourselves in the mining industry. We will continuously invest in human resource, machining equipment and advanced production equipment, after-sales service abilities and thus help our customers to solve mining’s toughest challenges.
Compare payload capacities, dimensional profiles, and engineering configurations to select the ideal underground equipment for your project.
| Model Designation | Equipment Category | Rated Payload / Bucket | Turning Radius (Inner/Outer) | Primary Application in Osaka |
|---|---|---|---|---|
| DRWJ-0.6 | Diesel Underground LHD | 0.6 m³ Bucket / 1.2 Tonnes | 2,400 mm / 4,100 mm | Small Utility Tunnels & Micro-Shield Shafts |
| DRWJ-1 / 1H | Diesel Underground LHD | 1.0 m³ Bucket / 2.0 Tonnes | 2,650 mm / 4,500 mm | Osaka Metro Cross-Drifts & Cable Headings |
| DRWJ-3 | Diesel Underground LHD | 3.0 m³ Bucket / 6.0 Tonnes | 3,100 mm / 5,900 mm | Large Hydro-Storage & Road Tunnel Mucking |
| DRWJ-4 | Heavy Underground LHD | 4.0 m³ Bucket / 8.0 Tonnes | 3,450 mm / 6,500 mm | High-Volume Aggregate Mining & Port Excavation |
| DRUK-20 / 20A / 20B | Underground Dump Truck | 20.0 Tonnes Payload | 4,200 mm / 7,200 mm | Long-Distance Incline Haulage & Shaft Hoisting |
| DRUK-30 | Heavy Mining Truck | 30.0 Tonnes Payload | 4,600 mm / 8,100 mm | Subterranean Highway Corridors & Bulk Quarrying |
Explore our complete manufactured catalog of trackless underground diesel LHD loaders and heavy mining dump trucks available for export and project deployment in Osaka.
High-efficiency 1-yard LHD loader with enhanced hydraulics, designed for narrow headings and swift mucking in restricted urban tunnels.
Massive 30-tonne subterranean haulage unit featuring robust suspension and high gradability for heavy civil tunnel operations.
Equipped with a horizontal ejection discharge blade, eliminating rollover risk and enabling dumping in low overhead roof clearance zones.
Standard 1.0 m³ scoop capacity loader optimized for high reliability, low fuel consumption, and simple mechanical maintenance.
Ultra-compact micro loader designed to navigate 1.8m x 1.8m headings, making it the premier choice for Osaka deep utility drifts.
Long wheelbase configuration offering maximum stability, increased payload volume, and smooth handling on long decline ramps.
Heavyweight 4.0 m³ bucket loader built with high breakout forces for high-tonnage mining production and large portal excavations.
Workhorse 3.0 m³ loader combining nimble articulated maneuvering with large scooping power for rapid muck loading cycles.
Driving productivity through low-carbon powertrains, ergonomic safety enclosures, and smart telemetry integration.
As Japan commits to carbon neutrality and rigorous metropolitan air quality standards, subterranean construction in Osaka increasingly demands advanced emission-scrubbed diesel powertrains and zero-emission battery electric vehicles (BEVs). Shandong Derui Machinery continuously optimizes exhaust aftertreatment systems—including catalytic purifiers, DOC+DPF filtration, and silencers—ensuring minimal underground air contamination and compliance with stringent urban environmental standards.
Furthermore, our next-generation loader platforms incorporate intelligent electronic monitoring systems, allowing Osaka engineering supervisors to track hydraulic pressures, oil temperatures, transmission health, and payload counts in real time, preventing downtime and boosting site productivity.
With close proximity across the East China Sea, our manufacturing facility in Shandong provides streamlined maritime shipping directly to the Port of Osaka and Kobe Port. This geographical advantage enables swift equipment delivery, reduced freight lead times, and rapid air-freight dispatch of replacement components from our factory inventory.
Backed by our dedicated international support team and our proven testing infrastructure for Sauer, Eaton, and Rexroth hydraulics, we ensure that every dump loader and mining truck supplied to Osaka functions with factory-calibrated precision from the first day of commissioning.