LMK Thermosafe Ltd

The original THERMOSAFE® Induction drum heater was manufactured and certified for use in potentially explosive atmospheres in 1986.

At that time the company was based in London and registered as LMK Engineering Ltd.  Certification was given by the UK Health & Safety Executive (Baseefa) in Buxton, in association with testing conducted at the Electrical Research Association.

The THERMOSAFE® induction heater quickly became the gold standard for drum heating methods due to its energy efficiency, speed of heating, robust design and certification standards.

In August 2000, the company was purchased by the current directors, and then renamed LMK Thermosafe Ltd. A major new product development programme was introduced, and the first innovation was the patented FARATHERM® Induction Base Heater.

With a full range of heating solutions for standard industrial containers in both hazardous and ordinary locations available off the shelf, exports quickly grew as world markets recognised the exceptional quality and value for money of these products.  This resulted in LMK Thermosafe Ltd being awarded the “Queens Award for International Trade” in 2012.

Further developments saw the introduction of new technologies and machinery permitting more bespoke container, vessel and pipe heating solutions to be created beyond our core drum and IBC market. This significant investment in R&D resulted in hazardous area certifications being obtained for new product ranges meeting UL/CSA standards for North America as well as ATEX standards for the EU and IECEx standards, now accepted by over 33 countries.

LMK Thermosafe Ltd provides effective, fast and efficient solutions to drum and container heating applications.

LMK Thermosafe Ltd. have manufactured hazardous area certified, robust and powerful THERMOSAFE® Induction Drum Heaters for over 30 years. This emphasis on lifetime performance and reliability flows through naturally and by design into the quality of all our flexible heating jackets and blankets, whatever their intended application may be.

THERMOSAFE® Induction Drum Heater for melting solids and fast heating of liquids:

• ATEX Certified for hazardous area use.
• IP66 rated for hose-down applications.
• Patented Technology.
• 100% record of reliability since 1986.
• SAFE -  EFFICIENT -FAST- FLEXIBLE - MAINTENANCE FREE 

Flexible Heating Jackets suitable for plastic, steel or fibre containers:

• Standard sizes in stock from 25 litre to 1000 litre.
• Bespoke service for custom vessels & containers.
• High power and chemically resistant versions available.

LMK Thermosafe have a long history of developing and manufacturing ATEX and IECEx certified drum and container heating products.

Our steadfast THERMOSAFE® Induction Heater has dominated the market for over 30 years and is still the safest, most efficient and most reliable drum heater in the world.

The accompanying FARATHERM Induction Base Heater is equally enduring and can hugely speed up the heating process.

We also have a growing range of fully certified Flexible Heating Jackets marked with our Inteliheat brand.

For more information on hazardous area process heating contact LMK Thermosafe

However big or small the application, our development team based at our UK headquarters can adapt tried and tested designs to produce the best results.

• Custom build Industrial Heating Blankets to suit your application and requirements
• Accommodate odd shapes like flanges and valves
• Cover long lengths of pipe with just one connection
• Easily removed for repairs and maintenance
• Cost-effective solutions.
• A practical alternative to Trace Heating

Contact LMK Thermosafe today to discuss your composite curing requirements, and we'll design a quality heating jacket solution that will save your business time and money.

• Jackets can be created in a wide variety of shapes, and can be joined together to heat the most complex-shaped items. Fully-adjustable straps ensure a perfect fit. 
• A superior quality heating element is machine-stitched into each jacket – its careful positioning plus the jacket's high density insulation work together to ensure that heat is distributed evenly and efficiently. 
• A range of power ratings and fixed or variable thermostat options available to suit your exact temperature needs.
• Sensors can be embedded where necessary for logging.

LMK offers specially designed flexible heating jackets capable of meeting the demands of almost any bulk Container Heating application.  

• From gentle warming and anti-freeze through to heavy-duty aggressive and fast heating.

• Indoor and outdoor, Wet environment, Food Safe and Hazardous Area options available.

• Multiple control and sensor setups

Off-the Shelf IBC Heating Jackets, Custom non-standard and large process tank solutions provided.

Designed and Manufacture in Suffolk.

LMK Thermosafe Ltd manufacture a wide range of drum and container heating products used in process industries world-wide, including Flexible Heating Jackets in a variety of sizes, materials, power levels and voltages.

The Flexible Heating Jackets are so versatile that they can be specifically tailored to fit a multitude of different containers suitable for virtually any size and specifications. This bespoke service offers ideal solutions for customers requiring non-standard containers to be heated as rapidly as possible and efficiently insulated.

Outer surfaces of each jacket utilise tough, water resistant nylon materials, inner layers are manufactured using unique coated glass cloths for protection from chemicals and long-term temperature durability. All heating jackets utilise high efficiency insulation to reduce heat-loss to a minimum, therefore we can also provide unheated insulated covers to fit containers where electrical power is not required or not available.

Contact us here for a quote. 

Do you have a short term requirement to expand capacity? Want to trial one of our heating solutions to help justify capital expenditure?

Many of our customers require short term use of heating equipment for specific projects, laboratory trials, or capital requisition calculations. To meet this need we have established a versatile rental program serviced through our main offices in the UK and USA. A number of our international partners across the globe are also able to offer this facility.

How Does our Rental Service Work?

For a fixed weekly/monthly fee, units are delivered to your site.  You decide on the initial rental period, which can be extended thereafter by agreement. We will usually ask for a rental deposit which is fully refundable upon the safe return of the rental unit(s). If at the end of the rental period you decide to purchase the unit(s), we will offer a fixed percentage rebate of the rental charges incurred.

Key Benefits

• Prove the concept pre-purchase – helps fill in those dreaded expenditure forms!
• No capital tied-up and/or enables delayed capital expenditure
• Increase your short-term production/process capacity with additional units
• Fixed percentage rental rebate offer if unit is purchased at the end of the rental period
• Open ended contracts

Ordering Information

Send your requirements to LMK Thermosafe and we will contact you to arrange everything.
For purchase price details go to our Quote Request page, complete the brief technical feedback form, and we will respond within one business day, allowing for any international time zone differences.

LMK Thermosafe Ltd are pleased to present ProxATEX ATEX/IECEx Certified Temperature Controller – New Patented High Current Hazardous Area Controller

This ATEX and IECEx certified controller is ideal for use with our Thermosafe, Faratherm or InteliHeat FlexiPlus products and other heating equipment installed in potentially explosive atmospheres. The device features Near Field Communication (NFC) which allows operators and site managers to set the key parameters of the device quickly and easily using pre-programmed cards. Simply hold the credit card sized NFC cards close to the front of the controller and the settings are instantly updated. 

Many laboratory and industrial processes require a constant flow of gas to be delivered from pressurised cylinders containing gas in liquid phase. If there is a high utilisation rate, frosting can occur on the surface of the cylinder and flow rates can be adversely affected. Our uniform and insulated heating solutions can prevent this phenomenon and restore stability to the flow rate. This is particularly important when using calibration gases where repeatability is vital. (Separate pressure monitoring systems should always be in place to meet health and safety requirements.)

LMK Thermosafe Ltd. have been manufacturing robust and reliable industrial heaters for safe and hazardous area use for over 30 years.

Our standard product range includes a selection of flexible heating jackets for pressurised gas cylinders. These have been designed with a variety of control options for both safe and hazardous “Ex” areas where there is risk of explosion. We manufacture to CE, ATEX/IECEx, UL and CSA standards in our ISO9001 certified factories in the UK.

As well as standard flexible heating jackets for the popular “K” sized cylinders, we can also design jackets for most cylinder sizes in both safe and hazardous areas, right up to several thousand litre capacity horizontal cylinders. These can be fitted with a variety of power and temperature control options, including our latest ATEX/IECEx patented “ProxATEX” digital controller, offering precise temperature measurement, multiple heating program adjustment options and user access control using secure NFC cards.

Multi-Size Pipe/Cable Heating Jackets & Base Heaters

Self limiting – Totally safe rolled onto itself!

LMK Thermosafe are pleased to present our latest award winning product “GrafHeat” using advanced heating technology. The heater membrane is the culmination of over 10 years cutting edge research and development, merging the fundamental materials science of Graphene and Polymer Composites. The technology uses a positive temperature coefficient (PTC) effect to control both power and temperature of the heating devices resulting in extremely safe solutions. These are applied in novel and economic ways for both standard and potentially explosive industrial applications.

“GrafHeat Cable Heating Jackets” are developed especially for application requiring cable or pipe heating. These easy to install jackets can be overlapped and therefore used with various size cables and pipes. They are very safe to use, with or without adjustable temperature control. Optimal energy efficiency and cost saving is guaranteed with automatic regulation of power dependent on the load. The jackets are hugely versatile, operating equally with both 110 and 240 Vac power supplies.

Safe and versatile

These heating solutions are truly self-regulating and do not require additional temperature control for basic safety. The standard cut-off temperature is 110oC with custom designs also possible. Many customers add one of our digital indicating temperature controllers for versatility at lower temperatures. This is the standard configuration for cable and pipe heaters where on-site contractors require the certainty of safety in a “one size fits all” design but have multiple target temperatures to achieve in any specific project.

Thanks to the inherant PTC effect limiting both temperature and power, our stock jacket can be used with cables and pipes ranging from 30 to 120 mm diameter.

Contact LMK Thermosafe to find out how GrafHeat can offer safe solutions for your surface heating projects.

Inteliheat is the North American trading name for Thermosafe Technologies LLC, a wholly owned subsidiary of LMK Thermosafe Ltd.

Our products meet the widest range of international electrical safety standards, including for North America, appropriate UL and CSA standards.

Certification for safe use in potentially explosive atmospheres is our speciality, tested to ATEX and IECEx International Standards, plus C1D2 and C1Z1 North American equivalents.

Certification for THERMOSAFE® was gained in 1986 after trials at Adshead Ratcliffe heating BP “Hyvis” synthetic resin. The presence of bulk china clay dust creates particularly abrasive & harsh environmental conditions.

In the following years, the heaters have been sold to over 60 countries, and the original item is still working well, alongside a new one purchased in 2015.

Heating of grease and lubricating fluids at Australian mining sites during winter has proven the durability of our flexible jackets even when used outdoors. Where necessary, we also make heavy duty PVC covers for additional protection.

Our worldwide HQ is located in Haverhill, Suffolk, a market town on the edge of the Cambridge technology cluster. Our manufacturing facility and research and development team are based in Haverhill, together with the senior management team.

Thermosafe Technologies LLC, trading as Inteliheat, is a wholly owned subsidiary registered in the State of Texas, and provides technical and commercial support for our business in the USA, Canada and Mexico. A 3PL warehouse in Miami enables express deliveries to any North American location. Visit Inteliheat.com for more information on our ETL certified products to UL/CSA standards, for safe and hazardous area use.

英特海利贸易（成都）有限公司 (Inteliheat Technologies (Chengdu) Limited) is our wholly owned subsidiary located in the province of Sichuan, China, and serves the whole of the Greater China Region. For more information in Chinese, please visit our China website.

We also have Distributors and Representatives in most industrialised countries worldwide. Each sales partner is selected for their abilities and knowledge of specific vertical markets. We refer potential customers to the most appropriate partner who can give the best level of support for the market area.