Description
ZWY-120/45L ZWY-120/55L WDZL-120 mucking loader, also known as underground mucking loader or coal mucking loader, is suitable for underground mucking and coal mucking.

Advantages of Underground Mucking Loader
There is no hydraulic equipment configured with constant temperature system currently. But we have been engaged in studying constant temperature technology in hydraulic system for a long time and achieved huge success. Our innovated equipment is equipped with main and auxiliary oil tanks and temperature control globe valve. The hydraulic oil in main and auxiliary oil tanks can swap automatically according to the temperature, so that the hydraulic oil temperature reaches set standard. If the machine works for a long time and the temperature surpasses the set standard, the auxiliary oil tank will start the cooling system to reduce oil temperature in auxiliary oil tank. This technology helps prolong service life of hydraulic components and improve equipment reliability.

Parameter of Underground Mucking Loader

Item		Unit	ZWY-120/45L	ZWY-120/58L
Max. Digging Width		mm	4200	4800
Max. Digging Height		mm	2800	3000
Max. Dumping Height		mm	1750/1350	2000/1600
Max. Dumping Distance		mm	2800	3100
Max. Digging Distance		mm	2000	2200
Max. Digging Depth		mm	450	600
Inner Width of Crawler Belt		mm	600	600
Outer Width of Crawler Belt		mm	900	1100
Width of Conveying Trough		mm	2000	2300
Speed of Scraper Chain		m/s	0.2 to 0.7	0.2 to 0.7
Max. System Presssure		MPa	31.5	31.5
Working Oil Temperature		℃	≤ 80	≤ 80
Total Weight		t	≤ 10.8	≤ 13.5
Overall Dimension	L	mm	7000	7800
	W	mm	2000	2300
	H	mm	2350	2600
Min. Ground Clearance		mm	320	320
Four Wheel and One Track			135 × 450 × 44	154 × 450 × 38
Gradeability		°	≤ 32	≤ 32
Main Motor Power		kW	45kW/380V (660V)	55kW/380V (660V)
Track Gauge		mm	600	600/762/900
Overall Dimension (L × W × H)		m	3.8 × 1.5 × 1.5	3.8 × 1.5 × 1.5
Tunnel Dimension (W × H)		m	≥ 2.5 × 2.6	≥ 2.8 × 2.8

Note
1. This parameter table is only for your reference.
2. Dumping height can be customized to make underground/coal mucking loader suitable for different transport machines, like side dump wagon and shuttle mine car.
3. High-end crawler mucking loader is configured with hybrid power (electricity and diesel) and quick coupler quartering hammer.