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Brushless alternators and PMSM electric motors, made in Bulgaria

PMSM drive motors

Built to your numbers

Rated power, voltage, speed and torque, fully customisable

Brushless alternators

18 AT 19 AT 20 AT

The most powerful in their class

Same inside, your fit outside

Brushless alternators

25 AT The most powerful

cradle alternator

ALMOTT · Stara Zagora, Bulgaria

Brushless alternators and PMSM electric motors, made in Bulgaria

Up to 650 A, up to 420 kW, 48 V versions for LiFePO4 charging

Discover all products

Our technology

20+

Registered patents worldwide protect our technology

Dual excitation, the hairpin stator and the brushless architecture, developed in Stara Zagora and registered in the European Union, the United States, Canada, the United Kingdom and China.

EUUSACanadaUKChina

Higher efficiency lower temperature longer lifetime

Every stator we make is made this way

Hairpin stator

Higher efficiency, lower temperature, longer life

Rectangular copper fills the slot that round wire leaves half empty. Every stator we make is made this way.

The technology behind our products

Applications

Where our machines earn their keep

Duty cycles with long idling, heavy electrical loads and no room for a service stop. Each application below names the machine we fit and why.

Boats and yachts, an application for ALMOTT PMSM motors and brushless alternators

01Boats and yachts

Our PMSM motors deliver direct-drive propulsion for the shaft or serve as thrusters for precise maneuvering — silent, responsive, and available across the full power range.

Our alternators are built for vessels running on internal combustion engines, generating onboard power from low rpm and charging 24 V and 48 V lithium-ion battery banks. A 48 V 25 AT alternator, for example, is a natural fit for LiFePO4 systems.

Built for the marine environment: motors are sealed to IP68, protected against salt air and washdown; alternators are rated IP23, protected against spray.

PMSM 181 · 193 · 230 · 30018 · 19 · 20 · 25 AT
Construction machines, an application for ALMOTT brushless alternators and motor pumps

02Construction machines

Dust, vibration and hours of idling with lights, compressors and electronics on. Every brushless alternator series, 18, 19, 20 and 25 AT, delivers at idle with nothing to wear; the PMSM motor pump electrifies the hydraulics at 12 V, 24 V or 48 V.

18 · 19 · 20 · 25 ATMotor pump 12 · 24 · 48 V
Refuse collection vehicles, an application for ALMOTT brushless alternators and motor pumps

03Refuse collection vehicles

Stop-start duty all day: lifts and compactors draw current while the engine idles at every bin. Every brushless alternator series delivers from idle: 18, 19 and 20 AT up to 450 A at 12 V or 24 V and 250 A at 48 V, the 25 AT up to 650 A at 24 V and 350 A at 48 V. The electric lift runs on a PMSM motor pump at 12 V, 24 V or 48 V.

18 · 19 · 20 · 25 ATMotor pump 12 · 24 · 48 V
Buses and trucks, an application for ALMOTT brushless alternators

04Buses and trucks

Air conditioning, doors, screens and telematics at every stop. Every brushless alternator series fits: 18 AT on the PAD mount, 19 AT on Bosch T1 and 20 AT on J180 replace the original alternator without new brackets, the 25 AT cradle mount serves the heaviest loads, and all keep charging at idle; the 48 V versions carry mild hybrid loads.

18 · 19 · 20 · 25 ATPAD · Bosch T1 · J180 · cradle
Street sweepers, an application for ALMOTT PMSM drive motors and motor pumps

05Street sweepers

Brushes, fans and water pumps run for hours at walking pace, so the sweeper goes fully electric. A PMSM drive motor moves the vehicle silently and without exhaust, and a PMSM motor pump powers the sweeping gear and the hydraulics instead of belts and an idling engine. No alternator needed: the battery pack is charged from the grid.

Fully electricPMSM drive motorMotor pump
The ALMOTT plant in Stara Zagora at sunset

Made in Stara Zagora

Design, production, assembly and test under one roof

Twenty-five years building electric machines in Stara Zagora, Bulgaria. Over 20 registered patents. Quality management certified to ISO 9001:2015. Tell us a specification and you talk to the engineers who will build it.

The company film

This is how we make them

Showcases

Machines at work

Helios Marine Omega 7.2 electric yacht under way off Burgas
Helios Marine · marine

Omega 7.2, solar electric yacht

A 50 kW ALMOTT PMSM motor on the shaft of a 7.2 m solar day cruiser: silent at 6 knots, up to 17 knots, up to 585 km on sunshine alone.

PMSM 50 kW · Omega 7.2 Read the story
Elreg Distributors
Elreg Distributors · transit, Canada

Toronto's transit buses, 25 AT

Elreg Distributors fits 25 AT alternators to the buses of many local transit operators in Canada, among them the Toronto Transit Commission (TTC), Toronto's public transit company.

25 AT · Transit buses · Toronto
Construction machines, an application for ALMOTT brushless alternators and motor pumps
Example project · construction

Electrified hydraulics, 48 V

A PMSM motor pump replacing the belt-driven hydraulic pump on a compact machine, fed by an 18 AT at 48 V.

Motor pump 48 V · 18 AT

Google reviews

Satisfied customers

4,8 of 5 from five public reviews of Almott Ltd. on Google

All reviews on Google →

Questions engineers ask

Before you send a drawing

How fast can we get an alternator?

The common voltages and mountings are on the shelf and ship as soon as the order is confirmed. Anything not in stock is built to order here in Stara Zagora and ships within two weeks of the order at most. Send us the part number or the application and we confirm the date the same day.

Will it fit my engine?

Four mounting standards cover most heavy-duty installations: PAD, Bosch T1, SAE J180 and cradle, ducted or ductless. Send the mount and the voltage and we confirm the part number.

Do you have a 48 V version for lithium batteries?

Yes. The 48 V alternators deliver up to 250 A (18, 19, 20 AT) and more on the 25 AT, with regulation suited to LiFePO4 charging profiles. Tell us the battery bank and the BMS and we set the regulator accordingly.

Can you match a motor to my boat?

Yes. We need five numbers: rated power, peak power for two minutes, system voltage, rated speed, and rated torque if you know it. We come back with the series, the winding, and a matched controller, tested before shipment.

How fast can we get a prototype?

Within 60 days of agreeing the specification. Design, engineering and production are all in-house, so nothing waits on a supplier: the winding, the rotor and the housing are made here and the prototype is tested on our own bench before it ships.

One thing we need

Tell us your needs

Rated power, peak power, system voltage and target speed. Our engineers come back with the machine that fits, or design one that does.

sales@almott.net
+359 887 210 076
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EU projects

Documents on the projects ALMOTT carries out with European Union funding.

All projects and documents