DYNAJET
350mdh HELI
The DYNAJET 350mdh HELI is a compact hot- and cold-water high-pressure water jetting system designed for flexible installation in a wide range of professional applications. Delivering up to 350 bar and 16 l/min, it combines high-pressure performance, DYNAJET's HELI valve technology and reliable operation where flexibility, durability and independent operation are essential.
Working pressure should match the task. Surface preparation and general maintenance typically use 150 to 500 bar, while industrial coating removal and concrete work require higher pressure. Contact your nearest distribution partner for guidance on the right pressure and flow rate for your specific job.
DYNAJET high-pressure cleaners are built in Tjæreborg, Denmark, for daily professional use. Spare parts and service are available through our distribution partners. For warranty terms specific to your unit, contact your local distribution partner.
DYNAJET high-pressure cleaners are built to comply with applicable safety and emissions standards. Operators should always follow local safety regulations and use appropriate protective equipment.
DYNAJET is sold exclusively through distribution partners worldwide, giving operators local access to product expertise, spare parts and service. If you do not know your local partner, contact us directly and we will help you find the right support in your region.
Compact cleaning power for mobile professional use
The DYNAJET 350mdh HELI is designed for professional users who need a compact hot- and cold-water high-pressure water jetting system that can be installed as a permanent unit or integrated into customised mobile solutions. Its compact footprint makes it easy to combine with water tanks, hose reels and other equipment, while also making it well suited to fixed installations where space is limited.
Delivering up to 350 bar and 16 l/min, the 350mdh HELI is developed for demanding applications where higher pressure is required for efficient water jetting performance. The combination of hot- and cold-water capability, a proven industrial diesel engine and durable industrial components ensures dependable day-to-day operation under demanding working conditions.
Equipped with DYNAJET's HELI valve technology, the machine provides stable pressure characteristics while reducing pressure in the high-pressure hose and spray gun when the trigger is released. Adjustable working pressure and suction pressure control further support reliable operation across a wide range of professional applications.
Whether installed in a service vehicle, enclosed trailer or as part of a fixed installation, the DYNAJET 350mdh HELI provides a durable and flexible water jetting solution for demanding professional use.
Also available without the HELI technology as the DYNAJET 350mdh.
SOLENOID-FREE BURNER CONTROL
Patented burner control without solenoid valves enables safe, efficient hot-water operation with instant-stop. Weed control mode with high-precision temperature control and engine-cooling pre-heating improves energy efficiency.
FLEXIBLE INSTALLATION MODULE
Designed for easy transport and changing job sites: mount it on a pallet, fit wheels, or install it in a van or trailer. A practical setup for versatile professional use with mains water supply.
Scope of delivery
Standard equipment
lifting eye, crankshaft pump, high-pressure gauge, powerful diesel engine, hand-throttle control, stainless-steel water filter, supply-pressure and water temperature-monitoring, hot-water system, safety valve
Standard accessories
10 m high-pressure hose for hot/cold-water, high-pressure cleaning gun with extension pipe (total length approx. 800 mm), nozzle carrier and 15° flat-jet nozzle, storage box