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DU.350N Underground Gate Operator

Heavy duty electromechanical underground operator

Product Details:
  • Irreversible electromechanical geared motors for gates of considerable sizes
  • Oil submerged gear
  • Adjustable mechanical stop included
  • Suitable for gate leafs up to 4m



DU.350N – 230Vac Heavy-duty underground operator for gate leafs up to 4m

The DU.350 is a well established and popular choice amongst the professional installers. The motor combines strength, performance and importantly, reliability. With a unique square motor case, the DU.350 benefits from having seals around the motor that are elevated from the bottom of the foundation box, meaning the water depth in the box can reach up to 80mm before penetrating any motor seal.

Secondly, the unique square motor casing acts as an oil bath for the motor and the internal gearing. With the motor and the oversized mechanical gears constantly submerged in oil, this gives you maximum cooling and lubrication for longevity and high duty cycles.




Additional information

Built in Physical Stops


Motor Type


Max Gate Width


Max Gate Weight


Duty Cycle




Wind Resistance

Strong breeze

Gate Usage

Light Commercial

Opening Time (Secs)

22 seconds

Choose kit option

Motor Only, Single Kit, Pair Kit

Common Spare Parts

9686590 – Manual rel block DU.IT/DU.350 (Hex key) 9688140 – Manual rel block DU.IT/DU.350 (Key type) 9686583– Manual key DU.IT/DU.350 (Hex key) 9686071 – Manual key DU.350 – OLD STYLE STAR 9686374– Motor lever arm DU.350
DU.350CF – Foundation box DU.350 motor DU.350CF-B – Foundation box DU.350 motor BLACK LID DU.350L – Manual rel shoe kit DU.350 (Hex key) DU.350L.2B – Manual rel shoe kit DU.350 (Hex key) 2B SB.DU.350K – Manual rel shoe kit DU.350 (Keyed)
SB.180L – 180° Conv. kit DU.350 motor (Hex key) SB.180K – 180° Conv. kit DU.350 motor (Keyed) DU.350CHAIN – Heavy duty chain DU350 (link & half link) DU.350FC – Limit switch device DU.350 motors DU.350ST – Adjustable mech stop DU.350 motors

Technical Drawing

Download Instruction Manual

Download Datasheet

Download Exploded Diagram

The DU.350 is a unique operator that is electromechanical but also all working parts are completely submersed in hydraulic oil offering big advantages to keep the motor well cooled and lubricated for maximum performance and high duty cycle.

How to order

As a trade customer, call us today on 01488 658 276 or email your enquiry to We can take your order over the telephone, via email, or in person with one of our sales reps at our trade counter. Apply for a trade account today here. Beninca Automation UK Ltd does not sell to the end-user, our equipment is designed specifically for professional gate and security installers who have received adequate levels of training.


We hold over £1Million worth of stock at our premises in Newbury, Berkshire. For all items in stock, we aim for same-day dispatch for all orders received before 14:00 pm. For orders that include made to measure safety edges, our cut of time for same-day dispatch is 11:30 am. We use various third partner courier companies and all goods are dispatched on a next delivery basis. Timed deliveries are available upon request.

Returns & Warranty

All Benincà Group products bought directly from Benincà UK, are covered by a 30-month warranty from the date of installation and must be registered using our online form. If the installation is not registered, the 30-month period is valid from the date of invoice.

If goods are suspected to be faulty within the warranty period, please complete the returns form

Related products

Unbeatable quality

All Benincà Group products are 100% Italian made and produced to the highest build quality. Every product undergoes extensive quality control checks, ensuring they are produced to the premium class we are renowned for.

30-month warranty

We offer piece of mind with all Benincà products, as standard they come with a set 30-month warranty. Our products are built to last, however if for some reason you do encounter an issue, you will be covered.

Dedicated support

We pride ourselves on delivering exceptional customer service, both pre and post-sales. Our team of experts are on hand to provide you with any support, this can be delivered via the telephone, over email, on-demand via WhatsApp or in person.

Huge UK stock levels

With a 10,000 square foot warehouse, we hold a substantial amount of stock, ensuring we continuously meet our customer needs. Our stock is regularly replenished with goods arriving in from Italy every few weeks.

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