INTEGRATED EC DRIVE / 01
Make the motor part of the ventilation system.
Permanent-magnet motor and control, integrated. Structure, speed control and real duty in one selection chain.
ABOUT RASTA
About us
Motors and intelligent drives focused on ventilation systems.
Changzhou Rasta Electromotor Co., Ltd was founded in 2021 to develop and manufacture integrated permanent-magnet motors and controllers. For negative-pressure fans, vacuum pumps and related equipment, structure, control and real duty are considered as one engineering system.
- Founded
- 2021
- Product series
- 03
- Certification
- ISO 9001
PRODUCT RANGE
Three product series, one clear progression
Find the right drive for your load.
80
EC80 / 2 versions
EC80
Two market versions in the EC80 product series with the same power band. For compact, low-power ventilation equipment needing local speed control.
- Domestic
- Overseas
100
EC100 / 2 versions
EC100
Two cooling structures; the choice depends on where the cooling airflow comes from. The workhorse product series of the mid-power band.
- TEAO
- TEFC
112
EC112 / 1 version
EC112
The largest product series offered, for high-volume negative-pressure fans. A single cooling structure.
- TEFC
CONTROL CHAIN
EC / PM / INTEGRATED CONTROL
Put signal, torque and airflow in one control chain.
Environmental, pressure or supervisory inputs turn real duty conditions into signals the controller can read.
STRUCTURE
One housing, three engineering paths
Break integration into structures that can be explained.
Front cover merged with the frame
Fewer housing joints reduce sealing risks and simplify assembly.
- Reduces assembly steps
- Improves tolerance stack-up
- Eliminates the waterproofing failure risk of a mechanical joint
Sandwich structure of the rear cover
Overall length decides the mounting envelope. On roof units and in-duct direct drives, where space is tight, this is a selection threshold.
- Eliminates redundant connecting parts
- Simplifies assembly
- Reduces the overall length of the motor
Potting of the motor control
An integrated machine puts the controller on the motor, where it takes the motor’s vibration and temperature rise. Potting addresses both at once.
- Improves control heat dissipation
- Improves the waterproofing of the control
- Eliminates the risk of loose electronic components
GLOBAL MARKET
From Changzhou to ventilation markets worldwide
Reliable drive, reaching more real-world duties.
HEADQUARTERSChangzhou · Jiangsu · ChinaNetherlandsDenmarkItalyBelarusUkraineThailandMalaysiaVietnamCambodiaIndonesiaPhilippinesAustraliaCanadaNEGATIVE PRESSURE DUTY
Resistance rises as cooling falls. The operating boundary appears.
A sealed test space simulates negative-pressure ventilation to observe operation as static pressure changes. The recorded test range below is not a performance guarantee for every product.
- Static pressure record
- 0–100 Pa
- Duty points
- 04
- Recorded speed
- 745–746 rpm
NEWS CENTER
News and technical insight
Put experience into words, so selection starts with evidence.
Practical thinking from products and applications, covering cooling structures, real duties and motor design.
TEAO or TEFC: where the cooling air comes from
The EC100 comes in two versions differing in one respect: what cools the motor. The answer decides overall length, weight, and whether the machine can run slowly for long periods.
Read article
Why negative-pressure duty is hard: two curves moving apart
The poultry-house negative-pressure fan was chosen as the ultimate proving duty — not because the airflow is large, but because as pressure rises, power and cooling move in opposite directions.
Read article
Air gap, vibration and bearing life are one subject
A uniform air gap is usually discussed as an efficiency topic. On continuously running ventilation equipment it is more of a service-life topic.
Read article