Roller diameter28.575 mm Roller width15.875 mm Stud diameter15.875 mm Stud length25.4 mm Overall length42.1 mm Outer ring surfaceCylindrical Tightening socketScrewdriver slot Seal typeUnsealed Thread5/8-18 Weight (kg)0.118000
Air Circuit Breakers
Hamzah Mohamad is a highly accomplished individual with more than 25 years of extensive experience in the oil and gas industry, handling projects for new build drilling rigs, cost and capacity planning to increase profit margins.
Hamzah is experienced in planning the work procedure and rig maintenance schedules carried out by Rig Mechanics, Electricians, and Barge Engineers on critical and support equipment. He is also well versed in creating a list of Capital Equipment variation to identify individual rigs equipment and critical spares, which serves as a template to closely monitor the operational costs for both operational and new build rigs.
With active involvement in the setting up of purchasing, stock and maintenance systems and policies, Hamzah helps ensure that every company’s goals and KPIs are met.
Fiefy Lawrence is a passionate Supply Chain and Logistics professional with more than five years of experience, of which three years were with Seadrill Offshore Malaysia.
Experienced in operations documentation & filling system, as well as Maximo & Oracle systems for Goods Receiving and Purchase Order & Purchase Request items, Fiefy displays effective time management and excellent teamwork even when facing the demands of work.
Fiefy enjoys a stable and challenging career that allows her to expend her capability and creativity wherever and whenever needed. She believes in continuous learning to improve her skills and knowledge and she cherishes a company with a good working environment and ready adoption of technology for work efficiency. She works hard to fulfil the company’s vision, as she grows in her career.
Celina Too started her career in the oil and gas industry with Jet Drilling, followed by an impressive 14 years with Sapura Drilling. In total, she has more than 17 years of extensive experience in supply chain management, especially in the oil and gas, and offshore marine industry.
She has always maintained good communication with the oil rigs for planning and daily support on the supply chain.
From supplier management to procurement to sales order fulfilment, she exhibits professionalism and diligence in her work, to ensure that all clients’ requests and orders are met and delivered timely.
She is one who is willing to face any challenges that come her way and is highly driven to achieve set goals.
Wendy Lee is a highly adaptable and driven marketer, with more than 20 years of diverse work experience in various aspects of corporate, channel and marketing communications, as well as up-to-date digital marketing skills.
Equipped with editorial and marketing skillset and coupled with a keen interest in writing and content creation, she is adept at producing a plethora of digital and printed marketing collateral for both internal and external communication.
Her approach to life has always been to be positive, embrace change, look for opportunities, persevere despite challenges, value each individual, nurture talent and build self-independence.
Tonny Wahyunanto began his oil and gas career in 1986 as offshore rig crew with various drilling contractors in Indonesia.
In 1996 he moved abroad and has extensive operations and administrative management experience of supply chain for international oil and gas drilling contractors Santa Fe International, Pride International, and lastly Valaris (legacy Ensco).
He has over 20 years of experience in key positions as Materials Coordinator, Procurement Manager for drilling operations in Malaysia and Vietnam and rig new-build projects in Singapore (seven semisubmersible and five jackups rigs) and as Quality Assurance Specialist in drilling and well control equipment.
Jason Ang started his engineering career after graduating with a Degree in Electrical and Electronic Engineering.
He specializes in offshore and commercial engineering and technical services, including project management, consultation, manpower supply, inspection, mechanical & electrical works, commissioning, and offshore downtime equipment troubleshooting.
With more than 20 years of engineering experience, he is excellent in handling all site matters and is able to implement high standards of quality, innovation and technology in service and work practice. With immense interest in engineering, he started his own M&E company – Singapore Innovation Technology, which serves clientele from oil and gas, offshore marine, commercial and residential industries, in Southeast Asia and beyond.
He is a key figure in propelling Singapore Innovation Technology into the best and trusted one-stop engineering solutions partner that every client looks for.
Schneider Electric Earth Leakage Circuit Protector A9D60616 
