Selection Difficulty: Is it really enough to just "look at the parameters" for export hydraulic motors?
As the core actuator of the hydraulic system, the selection of hydraulic motors is directly related to the efficiency and life of the equipment. In the face of various export projects, many buyers often mistakenly believe that they can complete the selection by looking at basic parameters such as "torque" and "displacement", but this is far from enough. The export environment is complex and changeable, and temperature, humidity, operating frequency, installation interface standards, etc. will affect the performance of hydraulic motors.
How to quickly and accurately select matching hydraulic motors for export projects has become an urgent problem that many engineering machinery and agricultural machinery traders and manufacturers need to solve.
Hydraulic Motor Selection List (8 Core Indicators Must-See for Export Projects | In-depth Version)
1️⃣ Use Environment
✔ What is it?
The use environment includes temperature range, humidity, dust content, corrosive gases or liquids, etc., which directly affect the motor seal life and operating stability.
✔ Why?
In extreme environments (such as high temperatures in deserts, dust in mining areas, and humidity in ports), oil seals and bearings made of standard materials may accelerate wear or leakage, affecting service life or even causing equipment downtime.
✔ How to choose?
High temperature (>45℃): Use FKM (fluororubber) oil seals
Corrosive environment: Stainless steel output shaft or nickel-plated housing is recommended
Dust environment: It is recommended to use a labyrinth seal structure or enhance the protection level (such as IP65)
🛠 Poocca recommends: BMR series high seal type / MS series heavy-duty environment enhanced version
2️⃣ Maximum torque requirement (Nm)
✔ What is it?
Maximum torque refers to the maximum resistance that the equipment needs to overcome when starting or running at full load.
✔ Why?
Selecting a motor with insufficient torque will cause difficulty in starting the equipment, overheating of the system, power waste, and even long-term damage to the equipment bearings and couplings.
✔ How to choose?
Estimate according to actual load × safety factor (1.3–1.5)
If the system pressure is low, a large displacement motor should be selected to increase the output torque
The higher the hydraulic pump pressure, the smaller the motor can be to achieve the same torque, but attention should be paid to heat and efficiency
🛠 Poocca recommends: MS18, MS35, TE400 high torque models
3️⃣ Speed range (rpm)
✔ What is it?
The rated speed range of a hydraulic motor is the speed range in which it can run for a long time without overheating or reduced efficiency.
✔ Why?
Too low speed → unstable start-up, large pulsation
Too high speed → severe heating, rapid seal wear
There is often no speed regulator in export projects, so choosing the right speed is extremely critical
✔ How to choose?
Design the speed according to the load system, for example, the mixer recommends <200 rpm
Match the output flow of the hydraulic pump (flow / displacement = theoretical speed)
🛠 Poocca recommends: OMR series is suitable for low-speed continuous operation / TG series can reach high speed (>600rpm)
4️⃣ Rotation direction
✔ What is it?
The rotation direction of the hydraulic motor is divided into clockwise (CW), counterclockwise (CCW) or bidirectional adjustable.
✔ Why?
Some equipment is designed to rotate in a specific direction. If the installation is wrong, it will cause oil circuit backwash, abnormal flow and even damage to the equipment.
✔ How to choose?
If you are not sure, it is recommended to purchase a "bidirectional motor" for more flexibility
Pay attention to the installation direction label (such as L, R, B) to avoid connection errors
🛠 Poocca recommends: BMR bidirectional rotation motor / MS series omnidirectional adjustable configuration
5️⃣ Oil port type and installation interface
✔ What is it?
Common hydraulic motor oil ports include G thread (BSPP), NPT, American standard SAE, flange interface, etc.; installation interfaces include two-hole, four-hole, square, round and other standards.
✔ Why?
Interface incompatibility will lead to installation failure, oil leakage and even engineering rework, especially in the EU and North American markets, customers usually have strict installation standards.
✔ How to choose?
Provide customers with equipment interface drawings or prototype photos in advance
Clarify flange standards (such as SAE A, B, C), whether to match bolt holes
Special interfaces need to consider customized flanges or adapter plates
🛠 Poocca recommends: Customizable DIN and SAE interfaces; OMR flange + shaft combinations are complete
6️⃣ Brake and sensor requirements
✔ What is it?
Brakes are used to prevent idling; sensors are used to monitor speed, position, etc.
✔ Why?
In ports, mining areas or automation equipment, such as loading and unloading arms, wheel drives, etc., motors must have brakes, otherwise the equipment will rotate freely.
✔ How to choose?
Clarify whether electromagnetic brake or hydraulic locking device is required
Whether to connect to PLC, speed feedback signal is required, and models with Hall sensor can be selected
If the equipment is working on a slope or the wind force has a great impact, the braking function must be selected
🛠 Poocca recommends: MS11/MS18 optional brake/encoder feedback model support
7️⃣ Compatibility with hydraulic pump
✔ What is it?
Refers to whether the oil volume (L/min) required by the motor is consistent with the system pump output, and whether the pressure and flow are matched.
✔ Why?
The pump flow is too small → the motor cannot rotate
The pump pressure is too high → the motor seal is damaged
The motor has too much internal leakage → the system efficiency is reduced
✔ How to choose?
Maximum flow of the pump × 85% ≈ motor flow
The pressure should be within the nominal value of the motor (it is recommended to leave a 10-15% margin)
🛠 Poocca recommends: Pump + motor package solutions can be provided, suitable for mainstream systems such as Rexroth and Parker
8️⃣ International certification requirements (CE / ISO / RoHS, etc.)
✔ What is it?
Some export projects (especially the EU and Australian markets) require products to have CE, ISO9001, RoHS and other certifications.
✔ Why?
Certification directly affects customs clearance and bidding qualifications. If there is no relevant certificate, the goods may be returned by customs or the bid may fail.
✔ How to choose?
Export to EU: CE + RoHS required
Export to South America: INMETRO or third-party test report required
OEM brand customers: ISO9001 quality control system + complete technical information required
🛠 Poocca support: Provide CE, ISO, RoHS certification + export certificate of origin and other documents, can cooperate with commodity inspection and issue Chinese and English invoices
Real case: Challenges in selecting hydraulic motors for Saudi agricultural customers in high temperature environments
In early 2024, the Poocca team assisted a customer from Saudi Arabia in selecting hydraulic motors for its agricultural sprinkler system. The customer initially used the locally purchased OMR model, but oil seal leakage and seal failure frequently occurred in the high temperature (up to 52°C) summer, resulting in a high system downtime rate.
After on-site investigation, Poocca recommended the BMR-200 hydraulic motor with high sealing performance, especially the use of high temperature resistant oil seal material (FKM), and equipped with an overcurrent protection valve. The solution successfully supported the customer's 800 sprinkler equipment to run continuously for half a year without failure, greatly improving the customer's equipment reliability and export reputation.
Poocca export hydraulic motor recommended model comparison table
| Model | Main Features | Applicable Environment and Customer Cases |
| BMR Series | Compact, high sealing, high temperature resistance | Tropical agricultural machinery, high temperature and dust conditions |
| OMR Series | Economical and practical, medium torque | Lightweight engineering machinery, suitable for medium and low intensity conditions |
| MS11/MS18 | High torque, heavy load design | Port machinery, mining equipment |
| TG/TE Series | Replacement of European and American brands, excellent cost performance | Export to American projects, replacing Parker and Rexroth models |
| A2FM Series | Large displacement closed loop high efficiency design | Tunnel machinery, shield machine and other high-end engineering machinery |
Common technical misunderstandings and professional suggestions
Misunderstanding 1: Only look at the rated torque and ignore the starting torque
Many customers ignore the need for higher torque at startup, which makes it difficult to start the equipment, especially in low-pressure systems.
Misunderstanding 2: Incompatible interfaces
The domestic interface and export equipment standards are different, and unconfirmed flange and oil port sizes will cause installation difficulties.
Misconception 3: Ignoring environmental factors
Not considering the impact of temperature and dust in the working environment on seals and materials, early failures are prone to occur.
Poocca Hydraulic Manufacturer Expert Recommendation Card
Selection suggestions for export customers:
Tropical high temperature environment: give priority to BMR series, use FKM high temperature resistant oil seals, and cooperate with enhanced sealing design
Bidirectional rotation requirements: clearly mark to avoid missing this function during procurement
Interface standard confirmation: provide customer equipment flange and oil port drawings in advance to ensure matching
Certification requirements: according to the requirements of the exporting country, request CE, ISO related certificates in advance
FAQ (Frequently Asked Questions)
Q1: Which export markets are suitable for Poocca hydraulic motors?
A: Our products are exported to the Middle East, Southeast Asia, South America and Europe, and support a variety of international certifications and interface standards.
Q2: I don't have detailed technical drawings, how can I quickly select?
A: Provide equipment type, expected flow and pressure range, and our engineers can provide professional matching solutions free of charge.
Q3: How long is the warranty period of Poocca hydraulic motors?
A: The standard warranty is 12 months, and global after-sales technical support is supported.
Q4: How to get customized packaging and customs clearance documents?
A: We provide wooden boxes with anti-rust packaging, with Chinese and English invoices, packing lists and certificates of origin, which meet most export requirements.
Practical resource download
[Poocca Hydraulic Motor Selection Guide PDF]
Click the "Download Resources" button on the right side of the page to get complete information and help you close the deal quickly!
Contact us
Poocca Hydraulic Manufacturer has been focusing on the export of hydraulic motors for many years and has rich experience and perfect services. Welcome to consult for quotes and technical support through the following methods:
Email: poocca11@126.com
Online form: https://www.poocca.com/contact-us
Although the selection of hydraulic motors seems simple, the export projects involve complex environments and diverse standards. Accurate selection is the key to ensure the long-term and stable operation of the equipment. Poocca Hydraulic Manufacturer relies on its rich overseas project experience and technical support to provide you with the most suitable hydraulic motor solutions.
