DESCRIPTION
This 4″ DHD IR 340 Hammer is rerun and is ready to go into the ground. Order your 4″ DHD IR 340 Hammer today!
DHD REQUIREMENTS
MINIMUM GUIDELINES FOR MOUNTING SPECIFICATIONS
Torque: Roughly 500 ft–lb per inch (27 N–m per mm) maximum of bit.
Speed: 10 to 90 rpm
Hold down force: 500 lb per inch (9 kg per mm) of hammer maximum
(i.e. SF6 needs 3000 lb (1360.8 kg)
Hold back force: Dependent on hole depth and string weight. Must be capable of
maintaining 500 lb per inch (226.8 kg per mm) at depth.
Operating pressure: 350 psig (24.1 bar) maximum
Volume: 150 — 200 scfm per inch (.165 — .22 m3/min per mm) of hammer diameter.
Lubrication: 1/3 pint (.16 l) per hour per 100 scfm (2.8 m3/min)
MINIMUM REQUIREMENTS FOR COMPRESSOR CAPACITY AND PRESSURE
The pressure and production developed by a DHD will be related to the air flow passing through the drill.
The pressure and performance of a DHD is related to the SCFM (standard cubic feet per minute) delivered by the compressor. To determine what pressure a DHD will carry (without fluid injection and well
oiled) you need to take into account the actual CFM (or mass flow) of air delivered by the compressor.
Compressors are rated in ACFM which only equals SCFM at standard conditions of sea level and 600 F
(160 C) inlet temperature. As the inlet air density either increases or decreases due to temperature and
altitude changes, the SCFM delivery of a compressor will change. The pressure and performance of a
DHD are related to the SCFM delivered by the compressor.
ABOUT INGERSOLL RAND
Ingersoll Rand’s people and market-leading brands work together to enhance the quality and comfort of air in homes and buildings, transport and protect food and perishables, and increase industrial productivity and efficiency. They are committed to sustainable business practices within their company and for their customers, helping them improve quality of life and the health of our environment around the world.
Ingersoll Rand’s customers count on the reliability of their family of industrial and commercial brands, such as Club Car golf cars, Ingersoll Rand industrial equipment, Thermo King transport temperature-control equipment and Trane air conditioning systems and services.
In addition to these market-leading brands, Ingersoll Rand offers other well-known brands throughout the world. Through all of their brands–and a 100 year-old tradition of technological innovation, they enable companies and their customers to create progress.
