All systems

Arkaअर्क

Hall-effect electric thruster

Electric propulsion that gets more push from every gram of propellant. Five power classes, from small satellites to large platforms, built in Bengaluru.

Flown in orbit on PSLV-C55 (April 2023) and PSLV-C58 (January 2024).

Request the datasheet See the numbers
Arka 1500 Hall-effect thruster
Thrust3 to 260 mNAcross the five power classes
Power50 W to 5 kWDischarge power
Specific impulse860 to 2,000 sArka 50 to Arka 5000
In orbit2 missionsPSLV-C55 and PSLV-C58

Pick a power class.

Each class is a separate thruster, sized to the spacecraft it moves. Choose one to see its numbers.

Arka 50 thruster with a red base

Arka 50

Thrust3 mN
Discharge power50 W
Specific impulse860 s
All Arka variants
VariantThrustDischarge powerSpecific impulse
Arka 503 mN50 W860 s
Arka 1007 mN100 W1,000 s
Arka 20013.2 mN200 W1,300 s
Arka 150086 mN1.5 kW1,600 s
Arka 5000260 mN5 kW2,000 s

Published figures. Mass, envelope, efficiency and lifetime are in the datasheet. Ask for it below.

Why Hall thrusters.

Built for long burns

Hall thrusters trade raw thrust for efficiency, so a satellite reaches its orbit using far less propellant than a chemical system.

Improved with every design cycle

Bellatrix reports gains in performance, operating life, cost and weight over its more than ten years in electric propulsion.

One family, five sizes

The same design approach spans 50 W to 5 kW, so a constellation and a large platform can buy from the same supplier.

A Hall thruster firing, its ring-shaped channel glowing blue-white
A Hall thruster firing under vacuum.

Tested under vacuum, in house.

Development, manufacturing and vacuum testing happen under one roof in Bengaluru. In September 2024 a 20 W Hall thruster was fired live at the Bangalore Space Expo.

Flight record.

  1. India's first privately built Hall thruster is tested

    The start of the Arka family.

  2. Flight on PSLV-C55

    An Arka thruster rides ISRO's POEM-2 orbital platform.

  3. Flight on PSLV-C58

    Tested on POEM-3 alongside Rudra and declared space-qualified.

  4. 20 W unit fired live

    Shown firing at the Bangalore Space Expo.

Specific impulse and thrust figures come from the company's published product page. Confirm exact values for your mission with the engineering team.

Other systems.

Size an Arka for your satellite.

Send the orbit, spacecraft mass and timeline. A propulsion engineer replies with a sizing and the Arka datasheet.

Email an engineer Or use the mission form