About Us
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- About Us
Opening Times
Monday - Friday: 09:00 - 06:00
Our Location
Thane (West), Pin 400606, India
Customer Support
+91 9324569864
ABOUT US
At Donisis LLP, we redefine the limits of innovation in plastic joining and industrial welding solutions. With over 26 years of expertise, we deliver world-class technologies, advanced machinery, and engineering excellence.
We specialize in Vibration, Hot Plate, Infrared, and Laser Welding solutions, as well as Ultrasonic Welding Machines for plastics and metals. Our offerings also include special purpose machines, product development, and consultancy services tailored to customer needs.
As the proud partner of CEMAS Elettra (Italy) and Sonic Italia, Donisis LLP brings cutting-edge European engineering to the Indian market.
Our mission is to empower industries with reliable, efficient, and future-ready solutions for plastic welding and joining applications.

VISION
To be the most trusted partner for plastic joining technologies in India, combining European innovation with Indian expertise.

mission
To empower industries with innovative, efficient, and sustainable plastic welding solutions backed by global technology leaders.

goal
We drive customer success with reliable, future-ready solutions. Through innovation, we expand as a leader in advanced welding technologies.
WE OFFER
Plastic Welding Solutions
State-of-the-art Vibration, Hot Plate, Infrared, and Laser Welding machines designed for precision, durability, and efficiency.
Ultrasonic Welding Machines
Advanced ultrasonic welding systems for plastics and metals, ensuring strong, clean, and consistent bonds.
Consultancy & Product Development
Expert guidance in concept design, material selection, and process optimization to bring your ideas to life.
After-Sales & Service Support
End-to-end support with installation, training, spare parts, and maintenance to ensure maximum uptime.
Global Technology, Local Expertise
Powered by partnerships with CEMAS Elettra (Italy) and Sonic Italia, delivering world-class technology with Indian adaptability.
Special Purpose Machines
Custom-engineered automation and assembly solutions tailored to specific industry requirements.
OUR TEAM
Kaustav Chatterjee
founder
26+ Years Of Experience in Sales, Operations, After Market, P &L in Capital Equipment and Plastic Joining Technology
Tejeswi Chatterjee
founder
18+ Years Of Experience in Operations, Manufacturing, Sales in Packaging & Pharma Industry
Kirit
Panchal
Team
35+ Years Of Experience in Manufacturing, Fabrication, Project Management, execution in process Industry
Narendra Adreja
Team
30+ Years Of Experience in Design, Application, Manufacturing, Program Management, Execution and After Sales.
Rujul Panchal
Team
7+ Years Young Energetic Engineer with Mechanical background, experienced in design software, VMC, Turning and After Sales Support, calibration of vibration, Hot Plate, Ultrasonic Machines.
Hours of Works
Tasks Done
Feedback Received
Our Core Values
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OUR TEAM
Kaustav Chatterjee
26+ years of experience in Sales, Operations, After Market, P&L in Capital Equipment and Plastic Joining Technology.
Tejeswi Chatterjee
18+ years in Operations, Manufacturing, Sales in Packaging & Pharma Industry.
Narendra Adreja
30+ years in Design, Application, Manufacturing, Program Management, Execution, and After Sales.
Kirit Panchal
35+ years of experience in Manufacturing, Fabrication, Project Management, and execution in process industry.
Rujul Panchal
7+ years as a mechanical engineer experienced in design software VMC, Turning, Calibration and after-sales support.