XMPYT-66/350 Scaling Jumbo Polished English Version

1. Core Features & Advantages

1.1 4WD Skid-Steer Chassis for Outstanding Agility in Narrow Tunnels

Equipped with a dedicated four-wheel drive skid-steer chassis, this machine boasts a minimum turning radius of 3600mm, a 1700mm wheelbase, 1270mm track width and 240mm minimum ground clearance. It delivers steady travel over gravel and uneven underground road surfaces, enabling flexible maneuvering inside narrow mine tunnels. Even under full load, it maintains reliable climbing performance with a maximum gradient of 19°.

1.2 National IV Explosion-Proof Diesel Engine – Cable-Free Independent Operation

Powered by the YC3890-T480 National IV explosion-proof diesel engine with a rated power of 66kW and rated speed of 2200rpm. Paired with a large 120L fuel tank, it supports long-duration continuous underground work without external power cables. Operators can freely reposition the machine, removing limitations from cable dragging and layout constraints.

1.3 Omni-Directional Hydraulic Scaling Hammer for Zero-Blind-Spot Rock Removal

Fitted with a heavy-duty 75kg scaling hammer that generates a maximum impact energy of 350J at an impact frequency of 10–16Hz, equipped with a standard 53mm chisel. The hammer swings ±90° vertically and horizontally, allowing full-range clearing of loose rock and dangerous floating stones on tunnel roofs and side walls with no dead zones.

1.4 Front Dozer Blade Stabilizer Improves Operational Stability

During scaling operations, the front dozer blade lowers to contact the ground and firmly anchors the entire machine. It effectively counteracts body vibration generated by hydraulic impacts, drastically boosting operational stability and underground construction safety.

1.5 Hydraulic Pilot Control & Dual-Layer Brake Safety Protection

Lightweight hydraulic pilot joystick control delivers responsive, low-effort operation. The machine is fitted with full-hydraulic service brakes and fully sealed wet parking brakes, maintaining consistent, dependable braking performance in damp, dusty underground environments. A standard dry powder fire extinguisher is included to fully comply with underground explosion-proof safety codes.

1.6 Tiltable Operator Cab for Comfort & Panoramic Visibility

The operator cab features adjustable tilt angles to accommodate operators of all heights. It provides an unobstructed wide field of view, easing visual fatigue during prolonged high-position scaling work and enhancing operating precision.

1.7 Robust Hydraulic System for Long-Lasting Heavy-Duty Use

The hydraulic system runs at a working pressure of 10–14MPa and flow rate of 20–30L/min. A 130L large-capacity hydraulic oil tank ensures steady, uninterrupted oil supply, effectively mitigating overheating and oil leakage risks during extended heavy-load operation for superior durability and stability.

1.8 Mechanized Operation Eliminates High-Risk Manual Labor

The all-in-one mechanized scaling workflow only requires one operator to complete all loose rock removal tasks. It fully replaces traditional manual high-altitude work, eliminates rock-fall injury hazards, cuts labor costs for high-risk underground posts, and drastically accelerates roadway hazard clearance efficiency.

1.9 Standardized Components Simplify Overseas Maintenance

The whole machine adopts highly universal, standardized wear parts and core assemblies. For overseas mining projects, spare parts procurement and on-site replacement are quick and convenient, shortening equipment downtime and lowering overall after-sales expenses.

2. Product Description

The XMPYT-66/350 scaling jumbo is specialized safety equipment designed to clear loose and hazardous rock in mine roadways and tunnel projects. Built on a 4WD skid-steer explosion-proof diesel chassis, it is engineered to remove blasted floating stones and concealed dangerous rock from tunnel roofs and side walls, effectively preventing rock fall accidents. Widely applied in metal mines, non-metal mines and tunnel construction, it delivers stable performance and top-tier safety, and is exported to mining markets worldwide.

The machine weighs 6500kg, with transport dimensions of 5900×1520×2050mm and a maximum working reach of 6000mm. Its 1700mm wheelbase, 1270mm track width and ≥240mm minimum ground clearance guarantee stable travel across rough, gravel-laden underground terrain. Driven by the 66kW/2200rpm YC3890-T480 National IV explosion-proof diesel engine and equipped with a 120L large fuel tank, it enables long-hour cable-free continuous operation. It travels forward at 7.7km/h and in reverse at 3.8km/h, with a maximum climbing gradient of 19° and a minimum turning radius of 3600±100mm for agile movement within narrow tunnels.

It features user-friendly hydraulic pilot joystick control and a 4WD skid-steer system, paired with full-hydraulic service brakes and fully enclosed wet multi-disc parking brakes. The tiltable operator cab and standard dry powder fire extinguisher fully satisfy underground explosion-proof and safety standards. Its core working attachment is a high-efficiency 75kg hydraulic scaling hammer, delivering 350J single impact energy, 10–16Hz impact frequency and a 53mm chisel diameter. The hammer supports ±90° vertical and horizontal omni-directional swinging to achieve full-coverage hazard removal without blind spots. The hydraulic system operates smoothly at a rated pressure of 10–14MPa and flow rate of 20–30L/min, supported by a 130L hydraulic oil tank for sustained oil supply. The front dozer blade lowers to stabilize the machine during operation, completely resolving equipment shaking and boosting construction stability.

Enabling single-operator mechanized workflow, this equipment fully replaces conventional manual high-altitude rock scaling, greatly reducing underground construction safety risks and lifting overall work efficiency. All critical components follow a universal standardized design to facilitate spare parts replacement and daily maintenance for overseas mining projects, making it indispensable safety machinery for roadway hazard elimination after blasting.

3. Technical Parameters

3.1 Main Machine Parameters

3.2 Hydraulic Scaling Hammer Parameters

3.3 Chassis & Braking System Parameters

3.4 Explosion-Proof Diesel Engine Parameters

Standard Model Analysis of XMPYT Series Mining Scaling