Shengmao 150 TPH Mobile Jaw Crusher Powers Heavy Haul Road Paving in Dupax del Sur, Philippines

Shengmao Machinery has successfully delivered, installed, and commissioned a 150 TPH Mobile Jaw Crushing Plant for a premier quarrying group in Dupax del Sur, Philippines.

Tasked with crushing hard blasted quarry stone to construct an all-weather crushed aggregate access road, the plant had to overcome severe coastal weathering (corrosive sea breezes, high humidity, and intense tropical UV) and extreme rainy season conditions marked by slippery mountain terrain and landslide risks.

Despite intermittent tropical downpours extending on-site assembly to 20 days under strict safety protocols, Shengmao’s overseas service engineers persevered to complete turnkey erection and cold/hot commissioning. The client’s Chief Executive Officer (CEO) personally attended the trial production run and expressed utmost satisfaction with the machine's robust build quality, crushing efficiency, and high-quality aggregate output.

1. Project Overview at a Glance

2. Client Background & The Haul Road Bottleneck

The client owns and operates multiple large-scale quarries across the Philippines, providing essential construction aggregates to national infrastructure and commercial projects.

However, at their Dupax del Sur site, operations faced a critical bottleneck: the main access road connecting the quarry to the national highway was an unpaved dirt trail.

3. Critical Project Challenges:

Severe Weather Downtime: During tropical rainstorms, the dirt haul road turned into deep mud, completely paralyzing 40-ton mining dump trucks and shutting down quarry deliveries.

Harsh Marine & Tropical Environment: Located in a coastal-adjacent mountain zone, the equipment faced aggressive saline sea air, persistent humidity, and extreme UV radiation, requiring superior anti-rust protection.

Hazardous Mountain Access: Narrow, steep mountain paths prone to slippery mud and landslide risks made transport and crane lifting perilous whenever tropical squalls hit the mountain.

Urgent Need for High-Strength Road Base: The client required high-density, multi-sized crushed aggregate (0–40 mm sub-base and 40–80 mm base course) to build a compacted, all-weather road capable of supporting continuous heavy-axle haulers.

4. Why the Client Chose Shengmao Mobile Jaw Crusher

The client selected Shengmao Machinery after benchmarking several international and domestic crushing plant manufacturers:

Marine-Grade Corrosion Resistance: Shengmao applied a specialized multi-coat paint system—including thorough SA2.5 sandblasting, high-build zinc-rich epoxy primer, and polyurethane UV-resistant topcoat—guaranteeing long-term durability in high-salinity coastal environments.

Deep-Cavity Heavy-Duty Jaw Crusher: Engineered with high-strength forged eccentric shafts, premium spherical roller bearings, and premium high-manganese alloy jaw plates (Mn18Cr2) capable of crushing hard rock with minimal wear.

Integrated Mobility for Multi-Quarry Deployment: The entire crushing circuit—including the vibrating grizzly feeder, jaw crusher, discharge conveyor, and electrical control cabinet—is integrated onto a rugged semi-trailer chassis, allowing rapid relocation across the client's multiple quarry sites.

Unwavering On-Site Engineering Commitment: Shengmao’s overseas service engineers were stationed directly on site, prioritizing safety and quality throughout challenging weather conditions.

5. Technical Solution & Engineering Highlights

1). High-Performance Primary Jaw Crusher

Optimized deep-cavity crushing chamber design provides a high crushing ratio and maximum intake capacity for large boulders up to 600 mm.

Hydraulic wedge discharge adjustment allows quick changes to aggregate output sizes (0–40 mm / 40–80 mm) without manual shimming.

2). Vibrating Grizzly Feeder with Pre-Screening

Heavy-duty grizzly bars pre-screen natural dirt and fines before entering the crusher, preventing jaw clogging and increasing overall crushing efficiency.

Variable-speed electric vibration motor ensures continuous, smooth raw material feed under heavy dump-truck dumping loads.

3). Rugged All-Terrain Semi-Trailer Chassis

Heavy-duty I-beam steel chassis with dual/tri-axles and kingpin hitch for fast towing across quarry roads.

Hydraulic support legs provide quick leveling and solid stability during high-intensity crushing operations.

4). Tropicalized & Weatherproof Electrical System

Fully enclosed IP65-rated control cabinet with dust-proof seals and tropicalized electronic components (Schneider / Siemens).

Built-in overload protection, emergency stop pull-cords, and conveyor safety interlocks.

6. Overcoming Tropical Storms: 20-Day Installation in Dupax del Sur

The installation took place during an intense tropical weather window in the mountains of Dupax del Sur:

Navigating Muddy Terrain & Safety First: Whenever heavy rain saturated the mountain tracks, Shengmao’s engineers suspended heavy crane operations to prevent landslide and slipping accidents, strictly enforcing jobsite safety.

Capitalizing on Weather Windows: The installation team worked dynamically during dry intervals to position the heavy chassis, assemble the feed hopper, mount the discharge conveyor belts, and wire the control cabin.

Precision Mechanical & Electrical Debugging: Conducted belt tensioning, bearing lubrication checks, jaw alignment, and motor rotation testing.

CEO On-Site Inspection & First Production: On the 20th day, the client's CEO personally visited the site to inspect the trial production run. Loaded with large granite blocks, the Shengmao mobile crusher operated with smooth stability, producing well-shaped road-base gravel at a steady 150 TPH. The CEO commended the machine's power and our team's perseverance.

7. Project Outcomes & Customer Value

All-Weather Haul Road Completed: The client rapidly produced thousands of tons of high-density crushed stone to pave their entire quarry access road, completely eliminating rainy-season transportation halts.

Zero Weather Corrosion: The heavy-duty marine paint system showed zero blistering, peeling, or rust after continuous exposure to heavy rain and coastal breezes.

Multi-Quarry Asset Flexibility: With the haul road finished, the mobile unit is ready to be towed to the client’s other regional quarry sites to fulfill commercial aggregate supply contracts.

8. Installation pictures