Denison T67DB Axial Hydraulic Pump for Crawler Excavator

Denison T67DB Axial Hydraulic Pump For Crawler Excavator

 

 

In the harsh working environments of construction sites, mines, and earthworks, crawler excavators rely on stable and powerful hydraulic systems to complete heavy-duty tasks such as digging, lifting, and loading. The Denison T67DB Axial Hydraulic Pump is engineered to be the "heart" of these systems, converting mechanical energy into high-pressure hydraulic energy to drive the excavator's boom, arm, and bucket. As a high-performance axial hydraulic pump, it adopts advanced axial piston technology, ensuring efficient power transmission even under continuous high-load operations. The denison t67db has been verified in long-term field tests, proving its ability to adapt to dusty, vibrating, and temperature-fluctuating environments-key for maintaining excavator uptime.​

 

 

The denison t67db pump stands out in crawler excavator applications with its ability to deliver strong power while ensuring long-term reliability. It can operate continuously at 350 bar and withstand peak pressures of 420 bar, providing sufficient hydraulic flow for the excavator's heavy digging operations (such as breaking hard rock or lifting large stones). As an axial hydraulic pump, its precision-machined piston and cylinder block assembly reduces internal friction by 40% compared to traditional pumps, increasing volumetric efficiency to over 95%-directly reducing fuel consumption by 8-10% in actual excavator operations.​

Another key advantage of the t67db pump is its robust construction. The pump body is made of high-strength ductile iron, and key components such as the drive shaft and bearings use hardened alloy steel, enabling it to withstand the continuous vibration and impact of crawler excavators during operation. The denison t67db also features an optimized oil distribution structure that minimizes pressure loss, ensuring that hydraulic energy is efficiently transmitted to the actuators, avoiding "sluggish" movements of the excavator arm.​

 

 

• High-Pressure Stability: The denison t67db pump uses a pressure-compensated variable displacement design, which can automatically adjust the displacement according to the excavator's load changes. When digging lightly, it reduces displacement to save energy; when heavy digging is needed, it increases displacement to provide strong power.​
• Wear Resistance: As an axial hydraulic pump, it adopts a dual-layer anti-wear treatment (surface nitriding + ceramic coating) on the piston and cylinder block, extending the service life to over 15,000 hours (tested in mining excavator operations).​
• Easy Maintenance: The t67db pump uses a modular design, allowing quick replacement of vulnerable parts such as seals and bearings. This reduces maintenance time by 30% compared to integrated pumps, which is crucial for minimizing excavator downtime.​
• Adaptability to Harsh Environments: The denison t67db is equipped with a high-efficiency oil filter and a dustproof sealing structure, which can operate stably in environments with ISO 4406 Class 19/17/14 contamination levels, avoiding failures caused by impurities.

 

 

T6C	-17	-1	R	0	-A	1
Code of series	Displacement code	Shaft type	Direction of rotation	Outlet port position	Design No.	Sealing level
T6C	03, 05, 06, 08, 10, 12, 14, 17, 20, 22, 25, 28, 31	See of Shaft	(Viewed from the shaft end of pump)			1-S1, NBR Nitrile rubber 5-S5, Fluoro rubber
			R-Clockwise rotation L-Counterclockwise rotation	00-Opposite inlet port 01-Inline with inlet 02-90°CCW from inlet 03-90° CW from inlet	A
T6D	14, 17, 20, 24, 28, 31,35,38, 42,45, 50, 61
T6E	42, 45, 50, 52, 57, 62, 66, 72, 85

 

 

T6CC	-25	-17	-1	R	2	-C	1	10
Code of series	Displacement of front pump	Displacement of rear pump	Shaft type	Rotation	Port	Design	Sealing level	Port
					positions	number		dimensions
T6CC	03, 05, 06, 08,10, 12, 14, 17, 20,22,25, 28,31	03,05,06,08,10,12,14, 17,20,22,25,28,31	See of shaft	(viewed from shaft end of pump) R-Clockwise rotation L-Counter clockwise rotation	See pictures below	C	1-S1, NBR Nitrile rubber 5-S5,Fluoro rubber	00,01,10,11 See installation dimension No options
T6DC	14, 17, 20, 24, 28,31,35, 38, 42, 45, 50, 61	03,05,06,08,10,12,14,17, 20,22,25,28,31
T6EC	42, 45, 50, 52,57, 62, 66, 72, 85	03,05,06,08,10,12,14,17, 20,22,25,28,31
T6ED	42, 45, 50, 52,57, 62, 66, 72, 85	14,17,20,24,28,31,35, 38,42,45,50,61

 

 

T6DCC	-42	-17	-10	-1	-R	2	-A	1	1
Code of series	Displacement of front pump	Displacement of middle pump	Displacement of rear pump	Shaft type	Rotation	Port positions	Desiqn NO.	Sealing level	Port dimensions
T6CCC	14, 17, 20, 24, 28, 31, 35, 38, 42, 45, 50, 61	03,05, 06, 08, 10, 12, 14, 17, 20, 22, 25, 28, 31	03, 05, 06, 08, 20, 22, 25, 28, 10, 12, 14, 17, 31	See of shaft	(Viewed from shaft end of pump) R-Clockwise Rotation L-Counter clockwise rotation	See pictures below	A	1-SI NBR Nitrile rubber 5-S5 Fluoro rubber	00,01 See installation dimensions
T6DCCS	14, 17, 20, 24, 28, 31,35, 38, 42, 45, 50,61,	14, 17, 20, 24, 28, 31, 35, 38, 42, 45, 50, 61	03, 05, 06, 08, 10, 12, 14, 17, 20, 22, 25, 28, 31
T6EDC	42, 45, 50, 52, 57, 62, 66, 72, 85	14, 17, 20, 24, 28, 31, 35, 38, 42, 45, 50, 61	03, 05, 06, 08, 10, 12, 14, 17, 20, 22, 25, 28, 31
T6EDCS

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