MMC Diving Services

"Since 1964"

24 hour Emergency Line: 01983 864 330

  • We have a 55 foot barge, accommodation for a full dive team and welfare facilities on board which include a galley, office, shower and heads with a purpose built drying room. One hull is a workshop with storage space.

    Self sufficient with a 52 kva 3 phase generator and available to rent. Please contact us for further information.

  • We develop lasting relationships by exceeding expectations. We operate as both main contractors and as specialist sub-contractors and would be pleased to discuss or tender for any marine civil engineering related projects that you are involved with.

  • We would welcome clients to visit our facilities to reassure themselves of our capabilities and to appreciate our total commitment to their requirements.

  • Although we provide services to most marine industries our core activities and specialist skills are concentrated in six key sectors:

    • Renewable energy
    • Submarine cables
    • Marine civil engineering
    • Water and waste water
    • Defence, construction and demolition
  • We strive at all times to maintain our excellent safety record and our goal for all projects is to have no incidents or accidents to our personnel, co-workers or the public at large, protecting not just ourselves but the reputation of our clients.

  • Our equipment is maintained to a very high standard in our own workshops and is subject to our stringent in-house, planned maintenance procedures carried out by our skilled technicians.

    All maintenance, logs, inventories and certificates are networked, uploaded and viewable on every site.

  • We operate as both main contractors and as specialist sub-contractors and would be pleased to discuss or tender for any marine civil engineering related projects that you are involved with.

  • We aim to provide the very best service available. We love what we do and this is transparent in our work and your results.

    MMC has a range of hydraulic, pneumatic tools and burning, welding equipment available. Please contact us to discuss your requirements.

  • Drilling, cutting, burning, welding and breaking equipment, inspection, testing and surveying equipment, Cardox rock, concrete material breaking and blasting system, maintenance, construction and demolition, support vessels, boats and barges, grouting and concreting, breakout and replacement, thickness NDT, tanks and ships, interpretive report writing on any survey or inspection.


    MMC are specialist providers of access engineering solutions including rescue, rope access and confined space works. The combination of these services allows MMC to offer innovative solutions to various challenging tasks, often in hazardous and difficult working conditions.

    We believe that it is our commitment to safety and innovation, as well as our multi-skilled personnel.


Cutting and welding rigs

Part Number: MMC 001 BRO & MMC 002 BRO


We have a range of purpose built cutting and welding rigs for both surface and underwater applications.

All site plant has a steel crash frame, certified LOLER lifting points, forklift points for ease of moving safely around site, and built in safety knife switch.

Our rigs have been designed for quick mobilisation on site, when time is money for the contractor and the client. Our rigs are designed for simplicity “Plug and play” just turn up and pull the cables off the reel.

We can supply with Broco Cutting Torches or underwater stingers, we also stock collets and washers, oxygen regulators, safety knife switches, circuit breakers, extra lengths of welding cable.

Please contact us for your requirements.

Cutting and welding rigs

Welder Specification:

Current range, Continuous: 20 – 350A
Duty cycle: interment 300A @ 60%   250A @ 100%
Open circuit voltage: 70 V
Dimensions L x W x H (mm): 1230 x 690 x 925 (without wheels and towbar)
Displacement / Cylinders: 2/954 cm3
Engine Type: Kholer Diesel, air-cooled
Fuel Consumption: 2.5 l/hr
Insulating Class: H
Protection IP: 23
Running Time: 15 hours @ 60% load
Three phase: 10 kVA / 400v / 14.4A
Single Phase: 5 kVA/230V/21.7A
Tank capacity: 38 litres
Weight (kg): 450

Cutting and welding rigs

Our CT 350 KSX is a Diesel Powered Welder Generator.  This machine is a multi process welder, suitable for Stick, MIG (Using the optional WF4 Wire Feed Unit) and TIG welding, capable of up to a 350 amp DC welding output.  It has a dual range function and an open circuit voltage of 70V. Incorporated in this model is a 12V battery, a battery charge indicator and this machine benefits from an electric start.

The CT 350 KSX CC/CV is able to weld any type of welding electrodes up to 6mm and takes full advantage of the engines power output “Power Optimizer” technology. With the ” Power Optimizer ” it is possible to ensure stable and optimal operation in all the welding conditions, exploiting the full power of the engine. This is a specific control technique aimed at preventing the engine overload when working near to its power limit.

Cutting and welding rigs

This diesel engine driven welder, is a Constant Current (CC), Constant Voltage (CV) professional machine with electronic control of the welding current. CC and CV welding output modes are selectable:

  • In Constant Current (CC) Mode, it is possible to choose between a characteristic with adjustable arc force, suitable for MMA and TIG welding (With Scratch Start).
  • In Constant Voltage (CV) mode it is possible to MIG weld using the optional WF4 Mosa Wire Feed Unit. Capable of Wire welding both Solid and Flux Cored wires.

An advantage of this welder is its’ diesel , a Kholer engine runs to a high specification and is very efficient with a fuel consumption of 2.5 litres per hour. The engine output is 14kw (19 hp) and has the capacity to generate an accessible speed of 3000 rpm.

  • Our Diesel Welder; CT 350 KSX is also EEC noise compliant.
  • Equipped with all the usual CT series features including:
  • Voltage reduction device which limits the welding voltage at terminals to 20v maximum, when not in use.
  • Adjustable Electronic Arc Force – Stepless Control to Increase Electrode “Dig-Force”
  • Emergency Stop Button & Auto Idle.

Download PDF data sheet

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