TG TE TF TG0405 TG0475 TG0530 TG0405US080AAAA High Torque Hydraulic Orbital Motor

Model Number	TG0405US080AAAA

SKU N/A Categories Hydraulic Motor, Orbit Motor

Product Description

TG TE TF TG0405 TG0475 TG0530 High Pressure Quantitative Hydraulic Motor TG0405US080AAAA High Torque Hydraulic Orbital Motor

I. Technical Parameters
Core performance parameters
– Motor type: Internal meshing gear hydraulic motor, bidirectional rotation design, fixed displacement structure, suitable for medium and high-pressure hydraulic systems, providing stable rotational power for the actuator.
– Displacement and pressure parameters: Rated displacement 80 mL/r; Rated working pressure: 21 MPa, maximum allowable pressure: 25 MPa (short-term ≤10 seconds); Rated speed: 1500 r/min, maximum speed: 2000 r/min (short-term ≤5 minutes), minimum stable speed: 50 r/min.
Torque and efficiency parameters: The rated torque at the rated speed is 127 N·m, and the starting torque is ≥ 90% of the rated torque. Volumetric efficiency ≥90%, total efficiency ≥85%; Rated flow rate: 120 L/min (at a pressure difference of 1 MPa).
– Operating characteristics: Continuous operating oil temperature ≤80℃, noise value under rated working conditions ≤85 dB (measured at 1 meter); The fault-free operating life under rated conditions is ≥ 10,000 hours.
2. Structure and connection parameters
– Structural type: Internal meshing involute gear structure, integrated cast iron housing, alloy steel gear pair, needle roller bearing, bidirectional sealing assembly; Adopt a floating bushing compensation structure to reduce high-pressure leakage. The shell is equipped with a flange mounting seat, suitable for rigid fixation.
– Core material: The inner gear ring and outer gear are made of chromium-molybdenum alloy steel (quenched and tempered, hardness HRC55-60); The shell is made of alloy cast iron QT500-7 (hardness HB240-280). The bearing is a high-load needle roller bearing (material GCr15). The sealing parts are made of high-pressure resistant fluororubber (temperature resistance ≤110℃).
– Connection specification: The oil port connection is threaded (the working oil port of A/B is G1″, and the return oil port of T is G3/4″). The output shaft is connected by a flat key (specification 16×40). Install flange bolts with a center distance of 140×100 mm. The motor weighs approximately 32 kg, and its external dimensions (length × width × height) ≈420×300×250 mm.
3. Medium and Environmental requirements
– Medium requirements: L-HM 46 anti-wear hydraulic oil is suitable for normal temperature. L-HM 32 is selected for low-temperature environment (below -20℃). The allowable viscosity of the medium is 10-400 mm²/s, and the moisture content is ≤0.03%. It is strictly prohibited to use media containing solid particles (particle size > 10 μm) or corrosive media.
– Cleanliness standard: The oil cleanliness should reach ISO 4406 16/13 grade. A 10 μm filter should be placed in front of the oil inlet. The filter should be replaced immediately when the pressure difference of the filter is greater than 0.1 MPa.
– Environmental parameters: Operating environment temperature -20℃ to 85℃, relative humidity ≤95% (short-term condensation is allowed); With a protection grade of IP65, it is suitable for scenarios such as construction machinery, industrial drive equipment, and auxiliary equipment for mines.Ii. Working Principle
This motor is an internal meshing gear hydraulic motor. Its core converts hydraulic energy into mechanical energy through the mechanism of “high-pressure oil driving gear meshing – volume expansion doing work – bidirectional rotational output”. The specific process is as follows:
1. Forward rotation process
High-pressure oil enters the inner cavity of the motor housing through port A and acts on the meshing tooth surface of the internal gear ring and the external gear. Due to the eccentric meshing design of the gear pair, high-pressure oil pushes the tooth surface to generate torque, driving the inner gear ring to mesh and rotate in opposite directions with the outer gear. The external gear drives the output shaft to rotate through a key connection, outputting mechanical energy. The low-pressure oil after doing work is collected through port B and discharged through port T, completing the forward power output.
2. Reverse rotation process
When the high-pressure oil is switched to Port B for input, the oil acts on the tooth surface on the other side of the gear pair, driving the internal gear ring and the external gear to rotate in the opposite direction, and the output shaft rotates in the opposite direction accordingly. Low-pressure oil is discharged through Port A and Port T, achieving bidirectional rotary switching. Throughout the entire process, the floating bushing, under the action of high-pressure oil, closely adheres to the end face of the gear, automatically compensating for the axial clearance, reducing leakage and maintaining efficient operation.
3. Overload protection mechanism
The relief valve equipped with the system automatically opens when the motor load exceeds the rated torque by 1.2 times, discharging some high-pressure oil back to the oil tank to prevent the gear pair from experiencing tooth surface adhesion or bearing damage due to overload. The built-in check valve of the motor can prevent the “runaway” phenomenon caused by the reverse flow of oil when the machine stops, enhancing the safety of the operation.

Iii. Product Features and Advantages
The advantage of high torque density is significant: With an 80 mL/r displacement and an internal meshing structure, the rated torque reaches 127 N·m. Compared with external meshing motors of the same torque, the volume is reduced by 30%, and the weight is only 32 kg. It is suitable for scenarios with limited installation space (such as loader drive axles and small winches).
– Stable and reliable bidirectional operation: The symmetrical gear pair design enables bidirectional equal torque output, with the error between the forward and reverse rotational speeds and torque being ≤2%. The floating bushing compensation structure keeps the volumetric efficiency stable at over 90%, ensuring smooth bidirectional switching without impact and making it suitable for frequent reversing scenarios (such as forward and reverse rotation of conveying equipment).
– Excellent anti-pollution ability: The clearance of the internal meshing gear pair is larger than that of the external meshing. The oil cleanliness requirement is only ISO 4406 16/13 grade, and the ability to resist dust and impurities is 40% higher than that of the plunger motor. Even if the oil is slightly contaminated for a short period of time, it is not prone to jamming faults and is suitable for harsh working conditions such as mines and construction sites.
– Easy installation and maintenance: The flange installation complies with international standards and can directly replace products of the same specification. The core vulnerable parts (gears, bearings, seals) have strong versatility and do not require special tools for replacement. The rated service life reaches 10,000 hours, reducing the operation and maintenance frequency by 40% compared to ordinary gear motors.

Iv. Usage Functions and Purposes
1. Core usage functions
– Rotational power output: Converts hydraulic energy into stable rotational mechanical energy to drive actuating components such as rollers, impellers, and wheels. It is suitable for scenarios requiring continuous or intermittent rotation, replacing the “motor + reducer” combination, and is compatible with environments without power supply or explosion-proof.
– Bidirectional reversing drive: It can achieve forward and reverse rotation without an additional reversing valve, with a switching response time of ≤50 ms. It is suitable for the bidirectional action requirements of conveying equipment such as “forward – backward” and winch such as “lifting – lowering”, simplifying system control.
-Low-speed high-torque drive: Torque fluctuation ≤3% at the minimum stable speed of 50 r/min, suitable for scenarios that require low-speed smooth operation (such as stirring mechanisms, rotary platforms), without the need for additional deceleration devices, reducing system complexity.
2. Main application fields
In the field of construction machinery: 10-20 ton loader traveling drive, 5-10 ton forklift steering drive, small excavator slewing mechanism, hydraulic winch lifting drive, suitable for outdoor heavy-load operations.
– Industrial drive field: Roller drives for small and medium-sized conveying equipment, stirring mechanisms for mixing tanks, pressure roller drives for paper machines, and belt conveyor drives for mines, suitable for continuous industrial production scenarios.
– Special operation fields: Drive for fishing boat netting machines, rotary drive for small cranes in ports, rotating equipment in explosion-proof workshops, compaction mechanisms for garbage compression equipment, suitable for outdoor and explosion-proof special working conditions.

V. Applicable Machines and Scenarios
1. Adapt to the core machine
– Construction machinery: 10-20 ton loaders, 5-10 ton forklifts, small excavators under 5 tons, 1-5 ton hydraulic winches.
– Industrial equipment: Small and medium-sized belt conveyors, 5-10 m³ mixing tanks, small paper machines, small belt conveyors for mines.
– Special equipment: Small and medium-sized fishing boat netting machines, small port cranes, explosion-proof rotary mixers, small garbage compactors.
2. Typical application scenarios
– Loader traveling scenario: As a traveling drive motor for a 15-ton loader, when the input pressure is 20 MPa and the flow rate is 110 L/min, the output speed is 1400 r/min and the torque is 120 N·m. The driving wheels can achieve a traveling speed of 8 km/h. With IP65 protection, it is suitable for the dusty environment of construction sites and can work for an average of 10 hours a day without failure.
– Conveying equipment drive scenario: It is equipped with a medium-sized belt conveyor, with an output speed of 500 r/min and a torque of 127 N·m to drive the roller to rotate. The conveying speed is 1.2 m/s. The bidirectional rotation function realizes the “conveying – returning” of materials, which is suitable for sand and gravel conveying operations in building materials factories.
– Fishing boat net lifting airport scene: It is used as a net lifting machine for small and medium-sized fishing boats. It outputs low speed and high torque (speed 80 r/min, torque 125 N·m), driving the fishing net to lift at a constant speed. The sealed design resistant to seawater corrosion is suitable for Marine operations. It can lift the net continuously for 10 times (500 kg each time) with stable performance.

Six. Similar models
1. Alternative models of the same series
-TG0405US063AAAA: A small-displacement model of the same structure, with a rated displacement of 63 mL/r and a rated torque of 100 N·m. The pressure parameters are consistent, suitable for light-load scenarios (such as 5-ton forklift steering), and the cost is 22% lower than that of the original model.
-TG0405US100AAAA: A large-displacement model in the same series, with a rated displacement of 100 mL/r and a rated torque of 159 N·m. The pressure parameters are the same. It is suitable for heavy-duty scenarios (such as the movement of a 20-ton loader), but the cost is 30% higher than that of the original model.
2. Cross-series alternative models
-TG0405US080AAAB: Different installation form models (flange to foot mounting), with exactly the same performance parameters, suitable for scenarios without flange installation Spaces (such as agitators), and the cost remains the same.
-TG0406US080AAAA: High-pressure enhanced model, rated working pressure 25 MPa, consistent displacement and torque parameters, suitable for high-pressure and heavy-duty systems (such as small mine winches), with a cost 28% higher than the original model.
-TG0405VS080AAAA: Variable control model, displacement can be adjusted from 30% to 100%, suitable for variable speed scenarios (such as fast and slow lifting of the winch), with a cost 50% higher than the original model.

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TG0475YB050AAAAVii. Precautions for Use
1. Medium and Selection management
– Strictly select L-HM 32/46 anti-wear hydraulic oil. It is strictly prohibited to mix oils of different grades or containing corrosive impurities. Select the model based on the system pressure (≤21 MPa) and torque requirement (≤127 N·m). It is strictly prohibited to use beyond the parameters to avoid gear wear.
Before the new system is used for the first time, the pipeline should be flushed with clean oil for more than 60 minutes to remove installation impurities before connecting the motor. When changing the hydraulic oil in the system, the inner cavity of the motor must be cleaned simultaneously and the sealing parts replaced.
2. Installation and commissioning
Before installation, confirm the direction of the oil port (A/B is the bidirectional working port, and T is the return oil port). It is strictly forbidden to connect them in reverse to cause the motor to reverse and get stuck. The output shaft is connected to the load by an elastic coupling, with a coaxiality error of no more than 0.1mm, to prevent bearing damage caused by eccentric loading.
Before debugging, manually turn the wheel 3 to 5 times to confirm there is no jamming. When starting for the first time, introduce low-pressure oil (5 MPa) and run it at low speed (500 r/min) without load for 20 minutes. Gradually increase the pressure and speed to the rated level, and check the smoothness of rotation and leakage (a leakage of ≤5 mL/min at the rated pressure is normal).
When installed outdoors or in a humid environment, oil-resistant sealant should be applied to the flange connection, and a dust cover should be installed at the output shaft end. Reserve at least 100mm of heat dissipation space around the motor to avoid direct sunlight or proximity to high-temperature components.
3. Operation and Maintenance
During operation, monitor the motor housing temperature (normal ≤75℃, maximum ≤85℃), output torque and noise weekly. If the temperature rises sharply by more than 15℃, the torque drops by more than 10%, or the noise abnormally increases (> 90 dB), stop the machine immediately for inspection, with a focus on checking for oil contamination, gear wear or bearing damage.
– Regular maintenance every 5,000 hours: Disassemble and clean the housing, and inspect the wear of the gear tooth surface (replace when the tooth thickness wear is greater than 0.2mm). Replace the seals and needle roller bearings, reassemble and test the torque and efficiency to ensure compliance.
– It is strictly prohibited to run without oil (idling for more than 5 seconds may cause gear sintering). It is strictly prohibited to operate for a long time beyond torque (> 152 N·m) or speed (> 2000 r/min). Before shutting down, first run at low speed without load for 5 minutes. Wait until the oil temperature drops below 60℃ before turning off the oil source.
4. Storage protection
When stored for a long time, all oil ports should be sealed with special plugs, anti-rust oil should be injected into the housing, and lithium-based grease should be applied to the keyway of the output shaft. Store in a dry warehouse with a temperature ranging from 0 to 45℃ and a humidity of no more than 60%. Avoid direct sunlight, heavy object compression and corrosive gas erosion. Manually turn the machine once every three months.
Before being put into use after being idle for more than 18 months, thoroughly clean the inner cavity and replace all the seals. After adding new oil, conduct a low-speed test run for 10 minutes to check the smoothness of rotation and leakage. Only after meeting the standards can it be connected to the system.

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