Cummins QSK50 Engine for Komatsu WE1350 Wheel Loader

The Komatsu WE1350 wheel loader is a versatile and reliable machine engineered for material handling, construction, and landscaping projects. Combining a powerful Cummins engine of QSK50, advanced transmission technology, and a robust frame. The vehicle has an operating weight of 194228 kg and is mainly powered by a QSK50 engine with a main power of 1250 kW.

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’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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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 QSK50

High efficiency and fuel economy: Komatsu engines use advanced fuel injection technology and electronic control systems to optimize fuel efficiency, reduce fuel consumption, and lower operating costs.
Strong durability: These engines are designed to be reliable in long-term operation, can withstand heavy loads in harsh environments, and reduce failures and downtime.
Easy maintenance: Komatsu considers easy maintenance and maintenance in the design of the engine. The engine parts are usually easy to check and replace, which reduces maintenance costs and time.
Intelligent control: Many Komatsu engines are equipped with intelligent control systems that can monitor engine performance in real time, optimize operation, and improve operating efficiency.
Compliance with environmental standards: Komatsu engines usually meet the latest emission standards, such as EU Stage V, US EPA Tier 4, etc., and use advanced emission after-treatment technology to reduce the emission of harmful gases.

Technical Specifications

Wheel Loader Model：	WE1350
Engine Model:	Cummins QSK50
Rated Power:	1250 kW
Rated Speed:	1800 RPM
Operating Weight:	194228 kg
Bucket Capacity:	22.94 m³
Displacement:	50.3 L
Aspiration Method:	Turbocharged & Water-Air Intercooler
Emission Standard:	U.S. EPA Tier 2
*Bore Stroke:**	159 mm * 159 mm
*Packing Size (L W * H):**	2857 mm * 1415 mm * 1766 mm
Wet Weight:	6373 kg
Lead Time:	15 – 30 Working Days
Payment Terms:	T/T,L/C

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Wheel Loader Model	Engine Model	Engine Brand	Rated Power	Rated Speed
WE1350	QSK50	Cummins	1250 kW	1800 RPM
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General Infomation of Cummins QSK50-C1675 Engine
Engine Model	QSK50-C1675	CPL Code	3905
Curve & Datasheet	FR6794	Rated Power	1,675 HP (1,249 kW) @ 1800 RPM
Compression Ratio	15 : 1	Torque Peak	4,887 lb-ft (6,626 N-m) @ 1800 RPM
Noise Emissions Top Side	N/A	Revision	29-Mar-2019
Noise Emissions Right Side	105 dBa	Displacement	3,067 in³ ( 50.3 L )
Noise Emissions Left Side	105 dBa	Fuel System	Cummins MCRS
Noise Emissions Front Side	103 dBa	Maximum low idle speed	1,400 RPM
Emission Certification	Non-certified	Minimum low idle speed	600 RPM
Aspiration	2-Stg Turbocharged and Aftercooled	Minimum engine speed for full load sustained operation	1,700 RPM
Configuration	D283038CX03	Maximum continuous power	N/A
Maximum overspeed capability	N/A	Maximum continuous speed	N/A

Torque Output			Power Output			Fuel Consumption
RPM	lb-ft	N-m	RPM	HP	kW	RPM	lb/hp-hr	g/kW-hr
600 RPM	2225 lb-ft	3017 N-m	600 RPM	254 HP	189 kW	1500 RPM	0.344 lb/hp-hr	209 g/kW-hr
800 RPM	2700 lb-ft	3661 N-m	800 RPM	411 HP	306 kW	1600 RPM	0.335 lb/hp-hr	204 g/kW-hr
1000 RPM	3100 lb-ft	4203 N-m	1000 RPM	590 HP	440 kW	1700 RPM	0.338 lb/hp-hr	206 g/kW-hr
1200 RPM	4095 lb-ft	5552 N-m	1200 RPM	936 HP	698 kW	1800 RPM	0.342 lb/hp-hr	208 g/kW-hr
1425 RPM	5282 lb-ft	7161 N-m	1425 RPM	1433 HP	1069 kW
1500 RPM	5455 lb-ft	7396 N-m	1500 RPM	1558 HP	1162 kW
1600 RPM	5430 lb-ft	9362 N-m	1600 RPM	1654 HP	1233 kW
1700 RPM	5154 lb-ft	6988 N-m	1700 RPM	1668 HP	1244 kW
1800 RPM	4887 lb-ft	6626 N-m	1800 RPM	1675 HP	1249 kW

General Infomation of Cummins QSK50-C1675 Engine
Top Side	102.6 dBa	Right Side	101.1 dBa
Left Side	99.7 dBa	Front Side	98.5 dBa
Exhaust	107.1 dBa
—END—

Engine Performance Data Cummins QSK50-C1675 Engine
	Governed Power		Peak Torque
Engine Speed	1800 RPM		1500 RPM
Output Power	1675 HP	1249 kW	1558 HP	1162 kW
Torque	4887 lb-ft	6626 N-m	5455 lb-ft	7396 N-m
Friction Horsepower	221 HP	165 kW	160 HP	119 kW
Intake Manifold Pressure	69 in-Hg	233 kPa	64 in-Hg	216 kPa
Turbo Comp. Outlet Pressure	70 in-Hg	236 kPa	65in-Hg	219 kPa
Turbo Comp. Outlet Temperature	388 deg F	198 deg C	370 deg F	188 deg C
Inlet Air Flow	4111 ft /min	1940 L/s	3458 ft /min	1632 L/s
Exhaust Gas Flow	9149 ft /min	4318 L/s	7827 ft /min	3694 L/s
Exhaust Gas Temperature	757 deg F	403 deg C	847 deg F	453 deg C
Heat Rejection to Coolant	5232 BTU / min	92 kW	4777 BTU / min	84 kW
Heat Rejection to Ambient	55278 BTU / min	972 kW	53060 BTU / min	933 kW
Heat Rejection to Exhaust	18540 BTU / min	326 kW	14843 BTU / min	261 kW
—END—

System Technical Data of Cummins QSK50-C1675 Engine
Intake Air System	Maximum allowable air temperature rise over ambient at Intake Manifold (Naturally Aspirated Engines) or Turbo Compressor inlet (Turbo-charged Engines): (This parameter impacts emissions, LAT and/or altitude capability)	20 delta deg F	11.1 delta deg C
Intake Air System		20 delta deg F	11.1 delta deg C
Cooling System	Cooling System Type	2 Pump-2 Loop
Exhaust Syetem	Maximum exhaust back restriction	2 in-Hg	7 kPa
Exhaust Syetem	Recommended exhaust piping size (inner diameter):	7.79 in	198 mm
Lubrication System	Minimum low idle speed	29 psi	200 kPa
Lubrication System	Advertised speed	83 psi	570 kPa
Fuel System	Fuel cooling requirements (with diesel fuel)
	Maximum heat rejection to return fuel at max. coolant and inlet fuel temperature:	367 BTU/min	6 Kw
	fuel return flow rate of	650 lb/hr	295 kg/hr
	fuel return temperature prior to cooler:	180 deg F	82 deg C
	Maximum supply fuel flow	1254 lb/hr	569 kg/hr
	Maximum return fuel flow:	650 lb/hr	295 kg/hr
	Maximum fuel inlet pressure:	3 psi	21 kPa
Cranking System (Cold Starting Capability)	Unaided Cold Start Minimum cranking speed	150 RPM
	Minimum ambient temperature	10 deg F	-12 deg C
	Cranking torque at minimum unaided cold start temperature	NA lb-ft	NA N-m
	Aided Cold Start Minimum ambient temperature with Grid Heater only	-26 deg F	-32 deg C
—END—