Raptors Trading & Contracting



Hillstone design & manufacture an extensive range of load banks for AC – UPS & Genset testing and DC – standby battery & lithium-ion discharge testing.

Regular load bank testing of generators provides an essential health check service to prevent diesel engine failure due to wet stacking. Wet stacking occurs due to under loading of the genset which results in wet un-burned fuel building up in the engine. This fuel build-up will over the timeline the combustion chamber cylinders and cause a reduction of the engine’s rating and efficiency which will ultimately cause premature failure of the generator. Running the generator on a load of 50% – 100% of the Genset rating will allow the engine to reach the recommend operating temperature, which will burn off the choke deposits.

Also, an extensive range of datacentre IST load banks to test data center battery Discharge testing is the approved method to determine the capacity of Lead-acid and (Nickel Cadmium) Ni-Cad/Ni-Cd batteries, as recommended by all battery manufacturers such as Enersys, Exide, C&D Technologies, Hawker, Yuasa, Exide, Hoppecke, Saft, Varta, and in accordance to BS6290 part 4 / IEC TR 62060.

Hillstone Products is a privately owned family business in the UK that has since 1989 specialized in the design and manufacture of load banks. The sectors that we serve include Datacenters, Oil & Gas, Petro­chem, Telecoms, Power Generation, renewable energies, Aviation, military, and hospitals. With our load banks being used across the world for testing generators, batteries, chargers, fuel cells, &UPS Systems. We also operate load bank rental depots in UK, Mainland Europe, UAE, and KSA. Hillstone Products holds EN ISO9001:2008 certification for the manufacture and rental of load banks and associated services.

Hillstone Middle East Trading L.L.C was established in Dubai in April 2012 to support existing clients in the region and to develop expansion and growth for the company. Hillstone MET also operates a ME load bank rental depot, holding AC, DC, and datacenter server simulator load banks and Mechanical Testing Services for Buildings and Data Centers. The additional services Hillstone MET provides have included data center commissioning and Integrated System Testing and HVAC Testing Services, Power Quality Audits, and Solutions.

Hillstone Reference List

Hillstone Products Ltd have supplied load banks, worldwide customers, in industries such as the


BAE Systems, BAA Gatwick International Airport, Manchester International Airport, Ultra Electronics, Dubai World Central Al Maktoum International Airport.


Kuwait Oil Company, BHP Petroleum, BP Amoco, Elf Enterprises, Statoil, Shell Exploration, Mobil North Sea, Saudi Aramco, Elf Enterprises, National Oil Distribution Co Qatar, TOTAL, Centrica. ADCO.


British Telecom, DU, Watania, Orange Telecommunications, Lattelekom Telecom, T­Mobile, Vodafone UK, Etisalat, Zain, Mobily, China Microware.

Power Generation

BNFL, British Energy, National Power, National Grid, East Midland Electricity, Yorkshire Electricity Board, C.E.G.B, Qatar Water and Electricity, DEWA.

Standby Power & UPS System manufacturers

Chloride Power Cummins Diesel, Emerson Network Power, APC­MGE, Enersys Batteries, Ericsson Hong Kong, Saft, C&D Technologies.

Datacenter Companies

Telecity, Digital Reality, Sentrum, RIM, IBM, Bank of Tokoyo, Equinix, Du, STC, Al Futtaim.

Other Blue Chip Companies

US Army, Rolls Royce, Rover Cars, Siemens, Vickers Specialist Engines, Morgan Stanley, Bank of America, Bovis Lend Lease, NG Bailey, BBC, Ford Motor Cars.

Our Products

OMICRON CPC100 – Multifunctional Primary Test Kit

Multi-functional primary test system for substation commissioning and maintenance. (Standard Package)

OMICRON CMC356 – Multifunctional Primary Test Kit

The Universal Relay Test Set and Commissioning Tool (Protection package + Advance Distance and Advanced Differential Test modules).

Current Transformer Testing, Calibration, And Assessment

Multi-functional primary test system for substation commissioning and maintenance. (Standard Package).

HILLSTONE HAC415-200 – THREE PHASE 415V, 50 Hz, 200 KW AC Resistive Load Bank

The Hillstone HAC series load banks offer a low-cost solution to on-site AC testing of generators and UPS systems. Load step – 1 kW.

Unit 1&2, Freetown Industrial Estate Hudcar Lansbury BL9 6HD UK

PO BOX 61574, Office #107, Corner City Building, Al Badia/Festival City, Dubai UAE