Danfoss TMT Hydraulic Orbital Motor TMT250/315/400/470/500/630

Elevate your machinery’s performance with the FSG TMT250 High-Torque Orbital Motor, the premier choice for professionals seeking a reliable Danfoss TMT series alternative. As a leading Wholesale Orbital Hydraulic Motor supplier, Fortis Systems Group provides a solution that combines the rugged durability of European engineering with the cost-efficiency required in today’s competitive multi landscape. Whether you are operating heavy construction equipment, agricultural harvesters, or marine winches, the TMT250 delivers consistent, powerful rotation under the most grueling conditions. We bridge the supply chain gap by offering immediate stock availability and worldwide express shipping, significantly reducing your downtime costs and ensuring your projects stay on schedule with a motor that meets or exceeds OEM performance standards.

Detail Parameter

Type Motor size			TMT 250	TMT 315	TMT 400	TMT 470	TMT 500	TMT 630
Geometric displacement	cm3		251.8 [15.37]	326.3 [19.91]	410.9 [25.07]	477.3 [29.13]	494.8 [30.19]	629.1 [38.39]
Geometric displacement	[in3]		251.8 [15.37]	326.3 [19.91]	410.9 [25.07]	477.3 [29.13]	494.8 [30.19]	629.1 [38.39]
Maximum speed	min-1	cont.	500	380	305	270	250	200
Maximum speed	[rpm]	int(1)	600	460	360	320	300	240
Maximum torque	N•m [lbf•in]	cont.	940 [8,320]	1,230 [10,890]	1,520 [13,450]	1,760 [15,580]	1,770 [15,670]	1,830 [16,200]
		int.(1)	1,290 [11,420]	1,660 [14,690]	2,120 [18,760]	2,420 [21,420]	2,240 [19,825]	2,290 [20,270]
		peak(2)	1,440 [12,745]	1,865 [16,500]	2,355 [20,845]	2,735 [24,210]	2,390 [21,150]	2,740 [24,250]
Maximum output	kW [hp]	cont.	35 [47]	35 [47]	37 [50]	37 [50]	35 [47]	27 [36]
Maximum output	kW [hp]	int.(1)	47 [63]	47 [63]	51 [68]	49 [66]	42 [56]	33 [44]
Maximum pressure drop	bar [psi]	cont.	250 [3,630]	250 [3,630]	250 [3,630]	250 [3,630]	250 [3,630]	200 [2,900]
		int.(1)	350 [5,080]	350 [5,080]	350 [5,080]	350 [5,080]	325 [4,710]	250 [3,630]
		peak(2)	400 [5,800]	400 [5,800]	400 [5,800]	400 [5,800]	375 [5,440]	300 [4,350]
Maximum oil flow	l/min [USgal/min]	cont.	125 [33]	125 [33]	125 [33]	125 [33]	125 [33]	125 [33]
Maximum oil flow	l/min [USgal/min]	int.(1)	150 [39.6]	150 [39.6]	150 [39.6]	150 [39.6]	150 [39.6]	150 [39.6]
Maximum starting pressure with unloaded shaft	bar [psi]		6 [90]	6 [90]	6 [90]	6 [90]	6 [90]	6 [90]
Minimum starting torque	at maximum pressure drop cont. N•m [lbf•in]		780 [6,690]	1,060 [9,380]	1,360 [12,040]	1,500 [13,280]	1,530 [13,540]	1,600 [14,160]
Minimum starting torque	at maximum pressure drop int.(1) N•m [lbf•in]		1,080 [9,560]	1,520 [13,450]	1,930 [17,080]	2,050 [18,140]	1,820 [16,100]	1,980 [17,500]

Advanced Engineering & Design:
The engineering excellence of our TMT250 motor is rooted in advanced Disc Valve technology and a high-precision Geroller set design. This sophisticated internal distribution system ensures that hydraulic fluid is allocated with minimal pressure loss, resulting in superior Volumetric Efficiency even at low speeds and high loads. The motor’s housing is cast from high-strength ductile iron, and the internal tapered roller bearings are specifically designed to handle extreme radial and axial loads, preventing common failures associated with shaft deflection. By optimizing the internal fluid pathways, we have minimized heat generation and mechanical friction, allowing the TMT250 to operate reliably in environments where thermal stability is critical for long-term system integrity and peak performance.

Key Features:
Superior Power Density: The TMT250 delivers a massive torque-to-weight ratio, allowing for high power output in a relatively compact design suitable for tight mounting spaces in mobile hydraulics. Precision Dynamic Control: Featuring a high torque-to-inertia ratio, the motor enables rapid start-stop cycles and smooth reversing, making it ideal for precise control in robotics and automation. Low Cogging Torque: Our specialized distribution plate reduces torque ripple, ensuring Low Noise and Vibration even during high-load, low-speed operations, enhancing operator comfort. Enhanced Seal Durability: Equipped with premium high-pressure shaft seals, the TMT250 prevents internal leakage and environmental contamination, ensuring a longer service life and reduced maintenance intervals in harsh outdoor environments.

Technical Advantages:
The primary technical advantage of choosing the FSG TMT250 lies in its uncompromising reliability and optimized energy conversion. By strictly adhering to the volumetric efficiency formula, our engineering team ensures that every motor provides predictable, repeatable performance under varying hydraulic pressures. Unlike generic aftermarket parts, the TMT250 undergoes 100% performance validation to match the flow-pressure curves of the original Danfoss TG and TMT series. This technical rigor eliminates the risk of system pressure drops and unintended speed fluctuations. Furthermore, the integration of high-thermal-efficiency materials ensures that the motor maintains a stable oil film, protecting critical internal components from wear and significantly extending the operational lifespan of your machinery’s entire hydraulic circuit.

Frequently Asked Questions

Question: Can the FSG TMT250 be used as a direct 1:1 drop-in replacement for my existing Danfoss TMT 250 or Eaton 6000 series without modifying my machine’s mounting bracket?

Answer: Yes, our TMT250 is engineered for absolute 1:1 interchangeability with the original Danfoss TMT and OMT series. We precisely match the SAE-C or CC 4-bolt mounting flanges and provide multiple shaft options, including the 1-1/2 inch keyed or splined shafts, ensuring a seamless drop-in fit. By maintaining exact porting positions and critical dimensions, we eliminate the need for costly re-engineering, allowing you to replace your high-torque motor in minutes and significantly reducing your site’s downtime costs during urgent maintenance cycles.

Question: How does the FSG TMT250 handle extreme pressure spikes up to 420 bar compared to the OEM units used in heavy construction equipment?

Answer: Reliability under pressure is our primary focus. The TMT250 utilizes advanced Disc Valve technology paired with a high-precision Geroller set to manage continuous pressures of 250 bar and intermittent peak spikes of 420 bar. This sophisticated design minimizes internal leakage, which is a common failure point in inferior aftermarket motors. By maintaining a high Volumetric Efficiency, our motor ensures consistent torque output of 1050 Nm, providing the same rugged durability and power density required for the most demanding excavator swings and heavy-duty industrial conveyor drives.

Question: Can this motor withstand the heavy side-loads associated with large winch drums or direct-drive wheel applications without shaft deflection?

Answer: Specifically designed for heavy-duty rotation, the FSG TMT250 features integrated heavy-duty tapered roller bearings. This internal architecture is engineered to absorb massive radial and axial loads, which are common in direct-drive marine winches and forestry harvesters. Unlike standard orbital motors that may suffer from premature bearing failure under side-loading, our TMT series maintains shaft integrity and prevents seal leakage caused by deflection. This structural robustness ensures a longer service life and stable performance in the harshest outdoor environments, matching the engineering standards expected from Danfoss and Eaton professionals.

Question: Does the TMT250 provide smooth, precise rotation at low speeds, or will I experience torque ripple and excessive noise in my automation system?

Answer: Precision and operator comfort are paramount in modern hydraulics. Our TMT250 addresses the issue of torque ripple through a precision-ground distribution plate, resulting in Low Noise and Vibration even at high-load, low-speed operations. This design ensures precise dynamic control and a high torque-to-inertia ratio, making it ideal for robotics and automated production lines where smooth start-stop cycles are required. By minimizing cogging torque, we provide a professional-grade alternative that matches the “silky smooth” performance of OEM Danfoss motors, significantly enhancing the overall efficiency and user experience of your machinery.

Question: My hydraulic circuit runs 24/7 in a high-temperature environment; how does the FSG TMT250 manage heat generation compared to original European units?

Answer: Heat management is a critical factor for long-term system integrity. The FSG TMT250 is constructed using High Thermal Efficiency materials and optimized internal fluid pathways to reduce mechanical friction. By strictly adhering to the volumetric efficiency formula, we ensure that less energy is wasted as heat through internal leakage. This allows the motor to maintain a stable oil film even under continuous 24/7 load cycles in high-ambient temperatures. Preventing “thermal runaway” not only protects the motor’s internal seals but also extends the operational lifespan of your entire hydraulic oil system.

Question: Original Danfoss parts are currently facing massive lead times; how does FSG guarantee stock availability and reduce my sourcing risk?

Answer: In multi industrial sector, a machine that isn’t moving is a machine that isn’t making money. As a specialized Wholesale Orbital Hydraulic Motor supplier, Fortis Systems Group maintains a large inventory of the TMT250 to mitigate the supply chain gaps often found in OEM channels. We offer flexible Express Delivery & Payment options, including global shipping via DHL/FedEx and secure payment terms like L/C or T/T. Our mission is to provide an immediate, high-quality alternative that allows global distributors and OEM manufacturers to fulfill orders on time, bypassing the months of waiting typical for branded components and securing your operational budget.

Danfoss TMT Hydraulic Orbital Motor TMT250/315/400/470/500/630

Detail Parameter

Frequently Asked Questions

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