All Products
-
Electric Motor Water Pump
-
Hollow Shaft Motor
-
3 Phase Induction Motor
-
Single Phase Induction Motor
-
IE2 Motor
-
IE3 Motor
-
Pool Pump Motor
-
Hydraulic Pump Electric Motor
-
Centrifugal Water Pump
-
Peripheral Water Pump
-
Self Priming Pump
-
Automatic Water Pump
-
Multistage Centrifugal Pump
-
Deep Well Pump
-
AC Electric Generator
-
Open Diesel Generator
-
Easy Spare Parts
-
Vadim ZabiiakaZhongzhi does really good on the design and manufacturing of the products. Experienced engineers service us very nice. -
Mr.Reuben kimwoloGood quality, great manufacturers, we are happy with your products. -
Mr.Yılmaz TürkoğluHave been working together for more than 3 years very professional. all products work fine in our types of equipment. Thank you.
5.5kW Hollow Shaft Motor for High Pressure Washer Systems with Aluminum Housing
Product Details
| Current | 1.5A | Phase | 3 Phase |
|---|---|---|---|
| Impeller | Brass Impeller | Medium Tempreture | 5-50℃ |
| Voltage | 220/380V | Pump Type | Centrifugal |
| Type | Asynchronous Motor | Color | Customer Specifications |
| Funtion | Massage, For Bathtub | Pressure | High Pressure |
| Model | HS112M2-4 | Oem | Yes |
| Housing | Aluminum | Power | 5.5kw/7.5HP |
Product Description
Hollow Shaft Motor for High Pressure Washer Systems | 5.5kW Three Phase Induction Motor
Why Direct-Coupled Hollow Shaft Motors Are Increasingly Used in Pressure Pump Systems
Limitations of Traditional Coupling Structures in Industrial Pump Systems
Traditional coupling structures are still widely used in industrial pressure pump systems and high-pressure cleaning equipment. However, as equipment design continues moving toward compact layouts and continuous-duty operation, conventional motor-pump connection methods are showing more operational limitations.
Common challenges include:
- Complicated motor alignment
- Coupling wear
- Larger installation footprint
- Vibration during long operating cycles
- Maintenance-intensive assembly structures
In Southeast Asian markets, industrial cleaning equipment often operates in:
- Humid environments
- Commercial vehicle washing stations
- Continuous-duty factory workshops
- Outdoor cleaning systems
These conditions can increase the impact of vibration, moisture exposure, and maintenance requirements.
Why Hollow Shaft Motors Fit Direct-Drive Pump Systems
A hollow shaft induction motor is designed to support direct-drive pump integration between the motor and pressure pump assembly.
Compared with traditional coupling systems, the hollow shaft structure helps:
- Reduce additional connection components
- Simplify motor alignment
- Optimize installation space
- Simplify assembly procedures
- Reduce long-term maintenance adjustments
This structure is increasingly used in:
- Pressure washer systems
- Booster pump units
- Industrial cleaning machines
- Compact pump assemblies
- OEM cleaning equipment
For equipment manufacturers requiring compact layouts, direct-drive configurations are often more suitable for modular equipment design.
How Key Specifications Affect Operational Stability
In industrial motor selection, long-term reliability is usually influenced by:
- Protection rating
- Insulation class
- Motor structure
- Cooling configuration
- Continuous-duty compatibility
The HS112M2-4 hollow shaft motor features:
- 7.5HP / 5.5kW output
- 4-pole induction motor structure
- IP55 protection
- Class F insulation
- Aluminum housing
The IP55 protection structure helps reduce the impact of dust and water splashing in industrial cleaning environments.
Meanwhile, Class F insulation supports stable operation during extended-duty cycles and higher thermal loads.
For Southeast Asian industrial applications, these practical specifications are often more important than generalized "high-performance" claims.
Typical Industrial Applications
This hollow shaft electric motor is commonly used in:
- Industrial pressure washer systems
- Commercial cleaning equipment
- Booster pump assemblies
- Vehicle washing equipment
- Compact fluid transfer systems
- OEM pump drive machinery
In integrated pressure cleaning systems, direct-drive structures can also help simplify maintenance access and reduce coupling adjustment requirements.
Recommended Products

