SMP LTD  - Submarine Manufacturing and Products Limited
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SMP - Submarine Manufacturing & Products

Commercial Diving Equipment & Hyperbaric Chambers Manufacturers

Commercial Diving Equipment and Hyperbaric Chambers


SMP are firmly established as one of the worlds leading manufacturers and suppliers of commercial diving equipment. We manufacture hyperbaric chambers, saturation diving systems, hot water machines, diver launch and recovery systems. We also supply commercial diving equipment including Kirby Morgan diving helmets, Coltri breathing air compressors, Cortland surface supplied diving umbilicals, Bowtech underwater camera systems, Birns underwater lighting, Stanley hydraulic underwater tools, underwater NDT equipment.



SMP Ltd was born from one man’s passion for diving and the underwater industry back in the 1980’s. Throughout the decades SMP has grown organically, through trying, testing and developing our range to become one of the most recognised manufacturers and suppliers of Commercial Diving equipment worldwide.

“We’re dedicated towards making commercial diving a safer environment, constantly developing new initiatives to benefit your deep sea business or organisation”

SMP Ltd has the skills and capability to design, build and deliver the best quality commercial diving and hyperbaric equipment. Our growing product range has been tried and tested by other industry leaders, with all our in-house manufactured products designed to meet IMCA and ADC standards and as a result are exported worldwide to more than 85 countries.

  • British Design & Build
  • Over 30yrs in the Making
  • A Family Work Ethic with Global Presence
  • Exporting to More than 85 Countries
  • Comprehensive Skill-Sets for Manufacturing and R&D
  • Key people with Real-life Diving Experience

Our Mission


To make available a full product range of equipment, accessories, training and support for the commercial diving and subsea industry. SMP will be the go to organisation for the highest quality product range, supplied in the shortest time frame and at the most competitive rates.


Our Vision


Is to be an admired global provider of high quality commercial diving and subsea solutions. Supplying our chosen markets with strategically developed products and implemented engineering solutions, improving our client’s productivity, efficiency and performance. By growing trusted relationships we will succeed together.

Commercial Diving Equipment: Featured Products

A selection of commercial diving equipment from our vast range of products is given below. We work closely with all of the major diving equipment suppliers to provide the best quality diving products at competitive prices.


Kirby Morgan Diving Helmets
Divex AH5 Freeflow Air Helmet
Divex-AH5-Freeflow-Air-Helmet The Divex AH5 Freeflow Air helmet that has long been accepted by many commercial divers as the standard for safety, quality, performance and reliability.
Underwater Tools
Spitznas Pneumatic Axial Die Grinder Type 1
Spitznas-Pneumatic-Axial-Die-Grinder-Type-1 Spitznaz underwater pneumatic axial die grinder type 1
Hyperbaric Chambers
SMP Shortened 60inch Diver Decompression Chamber
SMP-Shortened-60inch-Diver-Decompression-Chamber SMP shortened version of standard 60" diver decompression chamber.
Launch & Recovery Systems
Hydraulic Diver LARS (Diving Launch and Recovery System)
Hydraulic-Diver-LARS-(Diving-Launch-and-Recovery-System) SMP have designed and manufactured our own Hydraulic Diver Launch and Recovery system (LARS). 
Diving Umbilicals
Surface Demand Diving Umbilicals Diver Umbilicals
Surface-Demand-Diving-Umbilicals--Diver-Umbilicals SMP has many years experience supplying tailor-made divers diving umbilicals for both Surface Demand and Bell Excursion applications. 
Coltri Compressors
MCH-13/SH-MINI-TECH This Coltri MCH 13/SH MINI TECH breathing air compressor has a charging rate of 215 litres per minute which equates to 7.5CFM.
Diver Communications
SMP 2 Diver Radio
SMP-2-Diver-Radio The SMP 2 Diver Radio Set is a surface terminal for a communication system designed for the use between a surface tender and one, two or both divers.
Underwater Camera Systems
Umbilical Female Connectors and Locking Sleeves
Umbilical-Female-Connectors-and-Locking-Sleeves These female connectors are used for connecting the diver end of the umbilical to the video camera and light.

Hyperbaric Chambers - Diver Decompression Chambers

SMP Standard 60inch Hyperbaric Chamber - Diver Decompression Chamber DDC

We specialise in the design, manufacture and installation of hyperbaric chambers. We supply diver decompression chambers for the offshore industry aswell as onshore hyperbaric oxygen therapy chambers (HBOT) for the medical industry. All of our diving chambers are designed to meet and exceed IMCA standards for offshore use and are CE approved.


Use the following links to view our range of hyperbaric chambers and hyperbaric chamber accessories.

Coltri Breathing Air Compressors

Coltri Breathing Air Compressors

We supply a wide range of Coltri breathing air compressors. We offer both low pressure and high pressure compressors with petrol, diesel or electric motors. We also offer a range of Nitrox compressors capable of pumping upto 40% nitrox.


Use the following links to view our range of Coltri breathing air compressors. In addition we stock a full range of Coltri compressor spares, compressor service kits and compressor accessories.

Saturation Diving Systems

Saturation Diving Systems

SMP manufacture Saturation Diving Systems for the commercial diving industry. All of our saturation diving systems are Lloyds approved and meet IMCA D 024 for DESIGN for saturation (bell) diving systems.

SMP have recently designed, manufactured and installed a compact saturation diving system for the Spanish coastguard. Our in-house CAD design team were able to design the system to fit around the layout of the clients vessel and specification. Our attention to detail and bespoke approach ensures that our clients have a system that meets their expectations.

SMP Supply Worldwide Commercial Diving Contractors

International Marine Contractors Association
Association of Diving Contractors

SMP are members of IMCA (International Marine Contractors Association) and ADC (Association of Diving Contractors). We supply commercial diving equipment to commercial diving contractors throughout the UK, Europe and throughout the rest of the World.

IMCA - International Marine Contractors Association

Association of Diving Contractors


Matthew Thompson - Engineering Apprentice of the Year
Matthew Thompson - Engineering Apprentice of the Year

Tue 8th July 2014

Congratulations to Matthew Thompson from SMP LTD for winning Year 2 Mechanical Engineering Apprentic
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Hyperbaric Reception Facility featured in Making Waves 
Hyperbaric Reception Facility manufactured by SMP featured in IMCA Making Waves

Tue 10th June 2014

A hyperbaric reception facility (hrf) designed by SMP has been featured in the latest edition of the
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SMP Ltd makes donation to Newton Residents Association
Michael Gornall and Phil Connolly at SMP

Wed 23rd April 2014

Mr Michael Gornall, a representative from the ‘Newton Residents Association’ visited SMP
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Canadian Underwater Conference and exhibition - Toronto

Wed 2nd April 2014

Submarine Manufacturing & Products Limited (SMP LTD) will be exhibiting at the 2014 Canadian Und
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Oceanology Prize Draw Winner Announced
Random Draw made by Rebecca Gidley

Wed 19th March 2014

The winner of our Oceanology International prize giveaway is Alistair Blue – Dive Superintenda
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Submarine Manufacturing and Products Ltd
Submarine Manufacturing and Products Ltd
Blackpool Road, Newton, Nr. Kirkham
Preston, Lancashire, UK, PR4 3RE

Email: Click here to send us email
Tel: +44 (0)1772 687775
Fax: +44 (0)1772 687774

We are BSI Registered

We are BSI Registered for ISO 9001 & ISO 14001