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The HM300-2 with the new EPA Tier 3 and EU Stage 3A emission certified “ecot3” engine offers all around maximum productivity with more horsepower and many features that enhance efficiency, while reducing maintenance costs. From rough terrain construction sites to landfills, the HM300-2 has the competitive advantage.
Fully hydraulic articulated steering
• Light and easy operation
• Minimum turning radius 7.96 m 26'1"
• Tilt and telescoping steering column fits any operator
Tiltable cab
can be tilted rearward 32° to provide easy service.
Wide, spacious cab with excellent visibility
• The wide cab offers a comfortable operator and passenger environment
• Viscous mounts support the cab while absorbing vibrations and noise
• Low-noise cab through improved sealing with integrated floor Interior noise level 76 dB(A)
• Additional front under view mirrors provide superior visibility
• Air suspension seat is standard
• Power windows.
High performance and environment-friendly SAA6D125E-5 “ecot3” engine
• Gross horsepower 254 kW 340HP
• North American EPA Tier 3 and EU Stage 3A emission certified
• Engine power mode selection system realizes both greater productivity and improved fuel economy
• Higher engine output and torque improve productivity in all applications
Hydro-pneumatic suspension for all terrains.
The hydro-pneumatic suspension in both front and rear suspensions assures a comfortable ride even over rough terrain and keeps the tires on the ground at all times.
KOMTRAX® equipped machines can send location, SMR and operation maps to a secure website utilizing wireless technology. Machines also relay error codes, cautions, maintenance items, fuel levels, and much more.
Komatsu designed, electronically controlled transmission for a comfortable ride.
F6-R2 counter-shaft type transmission with K-ATOMiCS (Komatsu Advanced Transmission with Optimum Modulation Control System). Transmission shift hold button optimizes the operator control or the transmission will automatically shift through all gears.
Easy-to-load body
• Heaped capacity 16.6 m3 21.7 yd3
• Low loading height 2790 mm 9'2"
• High strength body constructed of thick wear-resistant steel with 400 Brinell hardness
Differential locks provide excellent traction in rough terrain.
The oil-cooled multiple-disc interaxle lock can be turned on and off during travel. In addition, the limited slip differentials automatically prevents the tires on either side from slipping on soft ground for maximum traction.
High capacity, reliable, continuously cooled, wet type multiple-disc brake and retarder combination
• Fully hydraulic controlled wet multiple-disc service brakes
• Retarder Absorbing Capacity (continuous descent) 349 kW 468 HP

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