The Dragon 440HP pairs a rated input power of 440 HP with a rated speed of 320 SPM and a max working pressure of 3327 PSI. In its standard configuration the unit is driven by a Detroit Series 60 Tier 3 diesel engine through an Allison HT750DR transmission, a drivetrain chosen for smooth, dependable power delivery that cushions the power end from shock loads. Factory data lists liner bores from 3 in to 4.5 in, with maximum working pressures from 3327 PSI down to 1710 PSI depending on liner size.
FAQ
What are the factory ratings of the Dragon 440HP mud pump?
Factory spec data lists a rated input power of 440 HP, a rated speed of 320 SPM and a max working pressure of 3327 PSI.
Which liner sizes are available, and how do they affect pressure?
Factory data lists liner bores of 3 in, 3.5 in, 3.75 in, 4 in, 4.25 in and 4.5 in. Smaller liners allow higher pressure: the 3 in liner is rated to a max of 3327 PSI, while the 4.5 in liner is rated to a max of 1710 PSI.
What engine and transmission does the standard package use?
The standard configuration pairs a Detroit Series 60 Tier 3 diesel engine with an Allison HT750DR transmission, a drivetrain known for smooth, reliable power delivery that reduces impact stress on the power end.
What fluid-end replacement parts do you supply for the Dragon 440HP?
We supply liners, pistons, valves, valve seats, valve springs, packing and fluid end modules matched to the Dragon 440HP, plus power-end wear items such as crosshead and crankshaft components on request.
Can you deliver Dragon 440HP parts to Canada or the United States?
Yes. We ship to drilling contractors and supply houses across Canada, the United States and international oil and gas markets. Pump parts move under HS code 84139100 with full export documentation.