Cummins QSB6.7 Engine for Komatsu HX20 UGHR Haulage

The Komatsu HX20 underground hard rock haulage vehicle is a compact and highly efficient solution tailored for underground mining operations. Designed to handle confined spaces and steep gradients, the HX20 offers reliable material transport with superior performance.The vehicle has a payload capacity of 20000 kg and is mainly powered by a Cummins QSB6.7 engine with a main power of 260 HP and a torque of 2300 rpm.

As part of EMAC, ConeMac provides industrial power pack solution that integrated with air intake, air exhaust, cooling system, control system, transmission and hydraulic accessories, We also supplying special products such as explosion proof engine, generator and water pump set, as well as ultra-low temperature condition engine power pack.

We provide full life cycle services for all customers, from design to power system supply, from installation to commissioning, from after-sales service training to spare parts supply, from trouble shooting to overhaul technical support.

EMAC Group Participates in Automechanika Istanbul Exhibition in Istanbul

EMAC Group, provide a one-stop service with a complete power chain for Automotive, has announced its participation in the Automechanika Istanbul Exhibition in Istanbul, Turkey. The exhibition will take place from June 8th to June 11th, 2023.
As one of the largest automotive events in the world, the Automechanika Istanbul Show attracts exhibitors and visitors from across the globe. Our Company is excited to showcase its latest products and services at the event, which will provide an excellent opportunity to network with industry professionals and connect with potential customers.

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EMAC Customer Interview-Thailand Engineering Company

EMAC’s customer interview video of 2023, EMAC finished a series of customer interview with 10 different business partners from different countries and regions, most of videos are took at customer’s company and factory, collecting all reviews and evaluations of EMAC, covering different industries in different country and regions, we believe this series of EMAC customer interview videos can help all of other customers get to know more about EMAC, our true customer interview case can greatly help customers relieve their worries, and build their confidence to cooperate with EMAC.
A Promise is A Promise, EMAC always do what we say, and for customer’s feedback, also 100% original from clients’s real words. EMAC, a Chinese company that you can trust !

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EMAC Customer Interview-Indonesia Shipyard

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Identification and Classification Report for Air Transport of Goods

Sinomac is dedicated to providing customers with safe, reliable cargo transportation services. Whether by sea or by air, ensuring safe delivery of our clients’ goods is at the heart of our operations. However, due to the complex nature of some cargo, especially industrial equipment like engines, many clients have concerns about whether such items might be classified as dangerous goods in air transport. To address these concerns, Sinomac provides a detailed analysis from multiple perspectives, including engine structure, relevant regulations, and the evaluations of authoritative inspection bodies, to give clients a clear and professional answer to this question.

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Advantages of Cummins QSB6.7

Efficient combustion technology: Cummins engines use advanced fuel injection and combustion technology to provide higher fuel efficiency and reduce emissions.
Emission control technology: Cummins is an industry leader in emission treatment (such as EGR, SCR, DPF, etc.) and can meet the world’s most stringent emission standards (such as China VI and Euro VI).
Intelligent control system: Cummins engines are equipped with electronic control units (ECUs) that can monitor and optimize engine performance in real time.
Reliability: Cummins engines are known for their ruggedness and ability to operate in a variety of harsh environments, including high temperatures, high altitudes and extreme cold conditions.
Durability: High-strength materials are used in components to extend service life while requiring low maintenance.

Technical Specifications

UGHR Haulage Model：	HX20
Engine Model:	Cummins QSB6.7
Rated Power:	260 HP
Rated Speed:	2300 RPM
Tramming Capacity:	20000 kg
Standard Box Volume:	7.5 – 12.5 Meters³
Height,Laden:	2555 Millmeters
Aspiration Method:	Turbocharged & Air-Air Intercooler
Emission Standard:	Euro Stage III
*Bore Stroke:**	107 mm * 124 mm
Wet Weight:	N/A
Lead Time:	15 – 30 Working Days
Payment Terms:	T/T,L/C

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UGHR Haulage Model	Engine Model	Engine Brand	Rated Power	Rated Speed
HX20	QSB6.7	Cummins	260 HP	2300 RPM
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General Infomation of Cummins QSB6.7-C260 Engine
Engine Model	QSB6.7-C260	*Bore Stroke**	107 mm *124 mm
Curve&Datasheet	FR94287	Displacement	6.7L
Compression Ratio	17.3 : 1	Rated Power	260 HP @ 2200 RPM
No. Of Cylinders	6 Cylinders	Peak Torque	990 N.m @ 1500 RPM
Fuel System	HPCR	Configuration	D313013CX03
Aspiration	Turbocharged & Air-Air Intercooler	*Packing Size(L W * H)**	N/A
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Performance Data Rated Power of Cummins QSB6.7-C260 Engine
	Rated Power	Torque Peak		Rated Power	Torque Peak
Engine Speed	2200 RPM	1500 RPM	Heat Rejection to Coolant	84 kW	64 kW
Gross Power Output	194 kW	155 kW	Radiator Coolant Flow	N/A	N/A
Torque	842 N.m	990 N.m	Heat Loss to the Intercooler	30 kW	19 kW
Inlet Air Flow	885 L/s	634 L/s	Turbo Comp. Outlet Pressure	181 kPa	173 kPa
Air Flow After Pressurization	1144 kg/min	820 kg/min	Turbo Comp. Outlet Temperature	163 °C	158 °C
Exhaust Gas Flow	N/A	N/A	Fuel Flow	46.1 kg/hr	35.5 kg/hr
Exhaust Gas Temperature	698 °C	694 °C

Performance Curve DCEC QSB6.7-C260 Industrial Engine

System Technical of Cummins QSB6.7-C260 Engine
Performance Data	Maximum Low Idle Speed	1200 RPM
	Minimum Low Idle Speed	600 RPM
	Minimum Engine Speed For Full Load Sustained Operation	1600 RPM

Air Intake System	Maximum Allowable Air Temperature Rise Over Ambient At Intake Manifold	17 delta deg C

Exhaust System	Maximum Exhaust Back Pressure	10 kPa
Exhaust System	Recommended Exhaust Piping Size (Inner Diameter)	75 mm

Cooling System	Maximum Intake Manifold Temperature At 25 Deg C (77 F) Ambient	60 deg C
	Maximum Allowable Pressure Drop Across Charge Air Cooler And Oem Cac Piping	13.6 kPa
	Maximum Intake Manifold Temperature Differential (Ambient to IMT) (IMTD)	35 delta deg C
	Intake Manifold Temperature For Full Fan-ON	43 deg C
	Maximum Coolant Temperature For Engine Protection Controls	114 deg C
	Maximum Coolant Operating Temperature At Engine Outlet (Maximum Top Tank Temp)	107 deg C

Lubrication System	Nominal Operating Oil Pressure——Minimum Low Idle	69 kPa
	Nominal Operating Oil Pressure——Maximum Rated Speed	380 kPa
	Minimum Engine Oil Pressure For Engine Protection Devices——Minimum Low Idle	52 kPa

Fuel System	Fuel Cooling Requirements (With Diesel Fuel)	N/A
	Maximum Heat Rejection To Return Fuel At Maximum Coolant And Inlet Fuel Temperature	1 kW
	Fuel Return Flow Rate Of	98 kg/hr
	Maximum Supply Fuel Flow	205 kg/hr
	Maximum Return Fuel Flow	126 kg/hr
	Engine Fuel Compatibility	DF1, DF2, B5, B20
	Maximum Fuel Inlet Pressure	180 kPa

Cranking System	Unaided Cold Star——Minimum Cranking Speed	120 RPM
	Unaided Cold Star——Minimum Ambient Temperature For Unaided Cold Start	12 deg C
	Unaided Cold Star——Breakaway Torque At Minimum Unaided Cold Start Temperature	350 N.m
	Aided Cold Start——Minimum Ambient Temperature With Grid Heater Only	32 deg C
	Aided Cold Start——Minimum Ambient Temperature With Ether Only	32 deg C
	Aided Cold Start——Minimum Ambient Temperature With Coolant And Lube Heater Only	40 deg C
	Cold Starting Aids Available	Ether, Intake Manifold Heater, Block Heater, Oil Pan Heater
	Maximum parasitic load at 10 deg F @ 750 RPM	505 N.m
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