Veljan Excavators VT6ED Fixed Displacement Electric Piston Pump

Veljan Excavators VT6ED Fixed Displacement Electric Piston Pump

 

 

In the context of energy conservation and emission reduction, excavators are gradually adopting electrified components to reduce reliance on traditional engine-driven hydraulic systems. The Veljan VT6ED Fixed Displacement Electric Piston Pump is engineered to be a "clean power source" for excavator hydraulic systems, converting electrical energy into stable hydraulic pressure through an electric drive mechanism. As a professional electric piston pump, it abandons the traditional mechanical transmission link, reducing energy loss during power conversion and making excavator operations more efficient and environmentally friendly-whether in urban construction with strict emission requirements or indoor engineering scenarios.

The veljan vt6ed pump is tailored to the working characteristics of excavators. Its fixed displacement design ensures a constant flow output under rated conditions, which is very suitable for actions that require stable power, such as the continuous lifting of the excavator's arm or the uniform rotation of the turntable. The vt6ed pump uses high-precision electrical components and hydraulic structures, and the response time between the start of the electric drive and the output of hydraulic pressure is controlled within 0.5 seconds, ensuring that the excavator's actions are not delayed.

 

The veljan vt6ed pump stands out for its electric piston pump design, which brings two key advantages: high energy efficiency and low noise. Compared with engine-driven pumps, the electric drive system of this pump has an energy conversion efficiency of more than 85%, which can reduce the overall energy consumption of the excavator by 20% during the same working time. At the same time, the absence of mechanical transmission friction and engine vibration makes the operating noise lower than 70dB, which is especially suitable for urban construction projects near residential areas or indoor excavation operations that require quietness.

Another major advantage is the stable output performance of the vt6ed pump. As a fixed displacement pump, it can maintain a constant flow and pressure output when the excavator is performing continuous operations such as trench digging or material handling, avoiding the pressure fluctuations that may occur in variable displacement pumps. The veljan vt6ed pump also uses a dual-seal structure: the electrical part is isolated from the hydraulic part to prevent hydraulic oil from infiltrating the motor, and the hydraulic chamber uses high-temperature resistant seals to ensure stable operation even when the oil temperature reaches 90°C.

 

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The Veljan VT6ED, VT6CC, and VT6GCC are high-pressure double vane pumps known for their performance and reliability. Here are some key points regarding their maintenance and operation:

 

Inspection and Lubrication: Regularly inspect the vanes and other critical components for wear or damage. Ensure that all moving parts are properly lubricated to reduce friction and extend the service life of the pump 97.

 

Seal and Gasket Condition: Check the condition of seals and gaskets to prevent any fluid leaks. Replace them if they show signs of wear or damage.

Fluid Quality and Change: Monitor the hydraulic fluid for contamination or degradation. Regularly change the fluid as per the manufacturer's recommendations to maintain its quality and prevent system contamination.

 

Operating Temperature: Keep an eye on the operating temperature of the pump. If necessary, implement cooling measures to prevent overheating, which can lead to reduced efficiency and potential damage.

 

Speed Ratings: Be aware of the maximum speed ratings for the pump, which are influenced by specific gravity, viscosity, and suction head. Ensure that the pump operates within the specified speed limits to avoid damage 98.

 

Pressure Monitoring: Monitor the pressure generated by the pump to ensure it is within the recommended range. Excessive pressure can cause damage to the pump and other components in the hydraulic system.

Prime the Pump: Before starting the pump for the first time, make sure it is properly primed at the lowest possible speed and pressure. This helps to eliminate air from the system and ensures smooth operation.

 

Pump Cartridge: The pump cartridge, which includes components like the cam ring, rotor, port plates, and vanes, should be replaced without major disassembly when necessary. This design allows for easy maintenance and part replacement.

Double and Triple Pumps: For double and triple vane pumps in the VT* series, each pump within the housing operates independently, with its own inlet and outlet ports. This allows for versatile applications and configurations.

 

Mobile Version Vane Pumps: If you are using mobile version vane pumps, ensure that the internal design modifications are taken into account, such as the bi-directional cartridge design, which allows for easy rotation change by adjusting the cam ring position 98.

By following these maintenance tips and adhering to the manufacturer's guidelines, you can ensure the efficient and reliable operation of your Veljan high-pressure double vane pumps. Regular maintenance not only prevents costly repairs but also contributes to the overall longevity of the hydraulic system.

 

 

 

Size		Series	Cartridges 1
C		6	Rotation			T6DC T6EC	T6DCC	T6DCC T6EDC T6DDC
				T6C	T6CC T67CB	T67DC T67EC	T67DCC T67DCB	T6CC T67DCC T67EDC T67DDC T6H20C T6H29C	T6CR
Cam	ml/rev.	Cam Code
3	10.8	034-59050	R (CW)	S24-10692	S24-10731	S24-10767	S24-25551	S24-10749	S24-26354
			L (CCW)	S24-10693	S24-10732	S24-10768	S24-25561	S24-10750	S24-26353
5	17.2	034-59051	R (CW)	S24-10694	S24-10733	S24-10769	S24-25552	S24-10751	S24-26356
			L (CCW)	S24-10695	S24-10734	S24-10770	S24-25562	S24-10752	S24-36355
6	21.3	034-59052	R (CW)	S24-10696	S24-10735	S24-10771	S24-25553	S24-10753	S24-26358
			L (CCW)	S24-10697	S24-10736	S24-10772	S24-25563	S24-10754	S24-26357
8	26.4	034-50953	R (CW)	S24-10698	S24-10737	S24-10773	S24-25554	S24-10755	S24-26360
			L (CCW)	S24-10699	S24-10738	S24-10774	S24-25564	S24-10756	S24-26359
10	34.1	034-59054	R (CW)	S24-10721	S24-10739	S24-10775	S24-25555	S24-10757	S24-26362
			L (CCW)	S24-10722	S24-10740	S24-10776	S24-25565	S24-10758	S24-26361
12	37.1	034-66595	R (CW)	S24-26478	S24-26509	S24-26480	S24-26484	S24-26482	S24-26383
			L (CCW)	S24-26479	S24-26510	S24-26481	S24-26485	S24-26483	S24-26382
14	46	034-59206	R (CW)	S24-10723	S24-10741	S24-10777	S24-25556	S24-10759	S24-26364
			L (CCW)	S24-10724	S24-10742	S24-10778	S24-25566	S24-10760	S24-26363
17	58.3	034-59207	R (CW)	S24-10725	S24-10743	S24-10779	S24-25557	S24-10761	S24-26366
			L (CCW)	S24-10726	S24-10744	S24-10780	S24-25567	S24-10762	S24-26365
20	63.8	034-66607	R (CW)	S24-26859	S24-26853	S24-40234	S24-40352	S24-31023	S24-31885
			L (CCW)	S24-26860	S24-26854	S24-40235	S24-40353	S24-40032	S24-50391
22	70.3	034-59208	R (CW)	S24-10727	S24-10745	S24-10781	S24-25558	S24-10763	S24-26368
			L (CCW)	S24-10728	S24-10746	S24-10782	S24-25568	S24-10764	S24-26367
25	79.3	034-59209	R (CW)	S24-10729	S24-10747	S24-10783	S24-25559	S24-10765	S24-26370
			L (CCW)	S24-10730	S24-10748	S24-10784	S24-25569	S24-10766	S24-26369
28	88.8	034-59245	R (CW)	S14-97761	S24-25510	S14-97722	S24-25560	S24-25547	S24-26372
			L (CCW)	S24-25519	S14-97738	S24-25791	S24-25570	S24-25546	S24-26371
31	100	034-66843	R (CW)	S24-45785	S24-45787	S24-45789	S24-45773	S24-45771	S24-49442
			L (CCW)	S24-45786	S24-45788	S24-45790	S24-45774	S24-45772	S24-49443
Port-Plates		Pressure	R (CW)	034-59772	034-59772	034-59773	034-66521	034-59773	034-59772
			L (CCW)	034-59773	034-59773	034-59772	034-66522	034-59772	034-59773
		Rear ass'y 3	R (CW)	S24-10803	S24-10805	S24-10809	S24-10806	S24-10807	S24-10808
			L (CCW)	S24-10804	S24-10806	S24-10810	S24-10805	S24-10808	S24-10807

 

 

There are many advantages in these products:high flow, high pressure, low noise, long life, high volumetric efficiency and so on.

 

 

T6 series vane pumps have complete varieties and specifications, high-quality performance, simple and reasonable structure, easy installation and maintenance (the installation is compliant with ISO / SAE standard)

 

 

T6 pump can be widely used in machine tools,pressure die casting machinery, engineering machinery, metallurgy, mining, light industry, chemical industry machinery,agricultural machinery, as well as various types of hydraulic systems and other fields.

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